Title of Invention

NEW IMIDAZOLONE DERIVATIVES, PREPARATION THEREOF AS DRUGS, PHARMACEUTICAL, COMPOSITIONS, AND USE THEREOF AS PROTEIN KINASE INHIBITORS, IN PARTICULAR CDC7

Abstract The invention relates to products of the formula(I) in which : X-Y is NH-C(S), N=C-NR7R8, N=C-SR, N=C-R or N=C-OR; R and R1 are H or optionally substituted cycloalkyl, alkyl, heterocycloalkyl, aryl or heteroaryl,; R2 is H, Hal or alkyl; R3 is H, Hal, OH, alkyl or alkoxy; R4 is H, Hal, CN or alkyl; R5 is essentially H, Hal, OH, NR7R8, cycloalkyl, alkyl, alkoxy, heterocycloalkyl, aryl or heteroaryl, optionally substituted; R6 is H, Hal, OH, NH2, NHalk, N(alk)2, alkyl or alkoxy; with R7 et R8 being such that one is H or optionally substituted alk, while the other is H or optionally substituted cycloalkyl, alkyl, heterocycloalkyl, heteroaryl or aryl; or with R7 and R8 forming together with N an optionally substituted cyclic radical optionally containing O, S or N. The invention also relates to isomers and salts thereof used as drugs and essentially as protein kinase inhibitors, in particular CDC7.
Full Text NEW IMIDAZOLINE DERIVATIVES, PREPARATION THEREOF AS
DRUGS, PHARMACEUTICAL COMPOSITIONS, AND USE THEREOF AS
PROTEIN KINASE INHIBITORS, IN PARTICULAR CDC7
The present invention relates to novel derivatives of
imidazolones, the method of preparation thereof, the
novel intermediates obtained, their application as
medicinal products, pharmaceutical compositions
containing them and novel uses of said imidazolone
derivatives.
The invention thus relates to novel derivatives of
imidazolones having inhibitory effects with respect to
protein kinases.
The products of the present invention can thus notably
be used for the prevention or the treatment of
disorders that can be controlled by inhibiting the
activity of protein kinases.
The products of the present application, as inhibitors
of protein kinases, can be used quite particularly for
the treatment or prevention of cancers. Cancer is a
disease for which existing treatments are still
inadequate. Certain protein kinases play an important
role in many cancers. Inhibition of these protein
kinases is potentially important in the chemotherapy of
cancers, notably for suppressing tumour growth or
survival.
The present invention therefore relates to the
identification of novel products which inhibit said
protein kinases.
The inhibition and regulation of protein kinases
notably represent a powerful new mechanism of action
for the treatment of a broad number of solid tumours.

Disorders that can be treated with the products of the
present application are therefore quite particularly-
solid tumours.
Protein kinases
The protein kinases constitute a group of enzymes that
catalyse the phosphorylation of hydroxy groups of
specific protein residues such as tyrosine, serine or
threonine residues. Said phosphorylations can
extensively modify the function of proteins; thus, the
protein kinases play an important role in the
regulation of a great variety of cellular processes,
notably including metabolism, cellular proliferation,
cell differentiation or cell survival. Among the
various cellular functions in which the activity of a
protein kinase is involved, certain processes represent
attractive targets for treating certain diseases. As an
example, we may notably mention angiogenesis and
control of the cell cycle, in which the protein kinases
can play an essential role. These processes are
essential for the growth of solid tumours as well as
for the development of other diseases.
The protein kinases participate in signalling events
that control the activation, growth and differentiation
of cells in response either to extracellular mediators,
or to changes in the environment. In general, these
kinases belong to two groups: those which phosphorylate
serine and/or threonine residues preferentially, and
those which phosphorylate tyrosine residues
preferentially [S.K. Hanks and T. Hunter, FASEB. J.,
1995, 9, pages 576-596]. The serine/threonine kinases,
for example, are isoforms of protein kinases C [A.C.
Newton, J. Biol. Chem., 1995, 270, pages 28495-28498]and a group of cyclin-dependent kinases, such as Cdc2

(Cdk1) [J. Pines, Trends in Biochemical Sciences, 1995,
18, pages 195-197]. The tyrosine kinases include growth
factor receptors, such as the epidermal growth factor
(EGF) receptor [S. Iwashita and M. Kobayashi, Cellular
Signalling, 1992, 4, pages 123-132], and cytosolic
kinases such as p56tck, p59fYn, ZAP-70 and the csk
kinases [C. Chan et al. , Ann. Rev. Immunol., 1994, 12,
pages 555-592].
Abnormally high levels of protein kinase activity have
been associated with many diseases, resulting in
abnormal cellular functions. This can occur either
directly or indirectly, from a malfunction in the
control mechanisms of kinase activity, connected for
example with a mutation, overexpression or
inappropriate activation of the enzyme, or with
overproduction or underproduction of cytokines or of
growth factors, which are also involved in signal
transduction upstream or downstream of the kinases. In
all these cases, selective inhibition of the action of
the kinases offers hope of a beneficial effect.
Among these protein kinases, we may mention quite
particularly protein kinase Cdc7.
Cdc7 is a serine/threonine kinase that has been
characterized at the molecular level as a factor that
is essential for initiating DNA replication.
The catalytic activity of Cdc7, which is conserved
throughout the eukaryotes, is dependent on its Dbf4
regulatory subunit. Although the expression of Cdc7 (at
the level of messenger and protein RNA) is constant
throughout the cell cycle, the level of expression of
Dbf4 is in contrast dependent on the cell cycle, which
induces an increase in Cdc7 kinase activity during the

G1-S transition. For this reason, Cdc7 is given the
designation DDK (Dbf4-dependent kinase).
The principal activity of the Cdc7/Dbf4 complex occurs
on initiation of DNA replication during the S phase. It
phosphorylates MCM2 which thus activates the MCM (Mini-
Chromosome Maintenance) complex, which is an essential
component of DNA-helicase activity.
Cdc7 also plays an important role in mutagenesis,
mainly induced by action at the level of the DNA-damage
pathways and checkpoints, in particular at the ATR-
dependent checkpoint, which prevents the initiation of
DNA replication in response to damage of the single-
stranded type caused by chemical agents such as
etoposide.
Cdc7 and Dbf4 are overexpressed in human tumour cell
lines and in many tumour samples (lung, breast,
thyroid, colon-rectum, oesophagus, uterus, testicle,
liver (Hess et al., 1998 and internal data)) in
comparison with the corresponding normal tissues.
Experiments in suppressing Cdc7 expression using RNA
interference (RNAi) technology show that inhibition of
Cdc7 expression induces arrest of the cell cycle and
prevents cellular proliferation of the human tumour
cell lines HeLa and HCT116, but has a limited effect on
normal cells (normal human skin fibroblasts) . This is
reflected in a prolonged stoppage in G1 that induces
apoptosis in cells lacking p53 (> 50% of tumours) but
is reversible in normal cells [A. Montagnoli et al.,
CANCER RESEARCH 64, 7110-7116, October 1, 2004].
The inhibitors of Cdc7 kinase activity can constitute a
novel category of targeted cytotoxic therapy as well as

of inhibitors of DNA replication. Such inhibitors would
inhibit replication before the replication forks are
established, thus blocking replication without damaging
the DNA.
The present application thus relates in particular to
novel inhibitors of protein kinase Cdc7 that can be
used notably for the treatment of abnormal cellular
proliferation and more particularly in oncology.
The present invention thus relates to the products of
formula (I):

in which:
X-Y represents NH-C(S), N=C-NR7R8, N=C-SR, N=C-R or
N=C-OR;
R1 represents a hydrogen atom, a cycloalkyl radical or
an alkyl, heterocycloalkyl, aryl or heteroaryl radical,
all these radicals being optionally substituted;
R, which may be identical to or different from R1, is
selected from the values of R1;
R2 represents a hydrogen atom, a halogen atom or an
alkyl radical;
R3 represents a hydrogen atom, a halogen atom, a
hydroxyl radical or an alkyl or alkoxy radical;

R4 represents a hydrogen atom, a halogen atom or a
cyano, CF3 or alkyl radical;
R5 represents a hydrogen atom, a halogen atom, a
hydroxyl, cyano, NR7R8, CONR7R8, NR11C0R12 radical, or
a cycloalkyl, alkyl, alkoxy, heterocycloalkyl, aryl or
heteroaryl radical, all these last-mentioned radicals
being optionally substituted;
R6 represents a hydrogen atom, a halogen atom or an
NR7R8, alkyl or alkoxy radical;
R7 and R8 are such that:
either R7 and R8, which may be identical or different,
are such that one of R7 and R8 represents a hydrogen
atom or an alkyl radical, optionally substituted; and
the other one of R7 and R8 represents a hydrogen atom
or a cycloalkyl, alkyl, heterocycloalkyl, heteroaryl or
aryl radical, all these radicals being optionally
substituted;
or R7 and R8 form, together with the nitrogen atom to
which they are attached, a cyclic radical formed from 3
to 7 ring members optionally containing one or more
other heteroatoms selected from O, S or N, N being
optionally substituted with R11, said cyclic radical
itself being optionally substituted;
all the alkyl, alkoxy, cycloalkyl, heterocycloalkyl,
heteroaryl and aryl radicals, as well as the cyclic
radical that R7 and R8 can form together with the
nitrogen atom to which they are attached, indicated as
optionally substituted, thus being optionally
substituted with one or more radicals, which may be
identical or different, selected from the halogen atoms
and the hydroxyl, cyano, nitro, CF3, NR9R10, NHCOR11,

NHC02R11, NHCONR9R10, NHSO2R13, COOH, COOalk, CONR9R10,
SO2NR9R10, alkoxy, alkylthio, haloalkoxy,
haloalkylthio, alkyl, fluoroalkyl, hydroxyalkyl,
cycloalkyl, heterocycloalkyl, heteroaryl and phenyl
radicals, these last-mentioned heteroaryl, aryl and
phenyl radicals themselves being optionally substituted
with one or more radicals, which may be identical or
different, selected from the halogen atoms and the
hydroxyl, NH2, NH(alk), N(alk)2, alkyl, hydroxyalkyl
and alkoxy radicals;
R9 and R10 are such that:
either R9 and R10, which may be identical or different,
are such that one of R9 and R10 represents a hydrogen
atom or an alkyl radical optionally substituted with
one or more radicals, which may be identical or
different, selected from the halogen atoms and the
hydroxyl and alkoxy radicals; and the other one of R9
and R10 represents a hydrogen atom or a cycloalkyl,
alkyl, heterocycloalkyl, heteroaryl or aryl radical,
all these radicals themselves being optionally
substituted with one or more radicals, which may be
identical or different, selected from the halogen atoms
and the hydroxyl, NH2, NH(alk), N(alk)2, alkyl,
hydroxyalkyl and alkoxy radicals;
or R9 and R10 form, together with the nitrogen atom to
which they are attached, a cyclic radical formed from 3
to 7 ring members optionally containing one or more
other heteroatoms selected from O, S or N, N being
optionally substituted with R12, said cyclic radical
itself being optionally substituted with one or more
radicals, which may be identical or different, selected
from the halogen atoms and the hydroxyl, NH2, NH(alk),
N(alk)2, alkyl, hydroxyalkyl and alkoxy radicals;

R11 and R12, which may be identical or different,
represent a hydrogen atom or an alkyl or phenyl
radical, optionally substituted with one or more
radicals, which may be identical or different, selected
from the halogen atoms and the hydroxyl and alkoxy
radicals, the phenyl radical itself being optionally
substituted with one or more alkyl radicals;
R13 represents an alkyl or phenyl radical, optionally
substituted with one or more radicals, which may be
identical or different, selected from the halogen atoms
and the hydroxyl and alkoxy radicals, the phenyl
radical itself being optionally substituted with one or
more alkyl radicals;
all the above alkyl (alk) and alkoxy radicals being
linear or branched and containing at most 12 carbon
atoms;
said products of formula (I) being in all possible
tautomeric and isomeric forms (racemates, enantiomers
and diastereoisomers), as well as salts of addition of
said products of formula (I) with organic and inorganic
acids or with organic and inorganic bases.
Among the products of formula (I) as defined above, we
may exclude the products of formula (I) in which all
the following conditions are fulfilled:
- R2 represents hydrogen;
- R3 represents hydrogen or alkyl;
- X-Y represents N=C-NR7R8, N=C-SR or N=CR in which X
represents N and Y represents =C-NR7R8, =C-SR or =CR
and R represents aryl or heteroaryl;
- R1 represents H or alk;

- and R4, R5 and R6 are such that two of them represent
H and the other represents hydrogen, NH2 or NHalk.
The present invention thus notably relates to the
products of formula (I) as defined above in which:
R1 represents a hydrogen atom, or an alkyl radical, all
these radicals being optionally substituted as stated
above or hereunder;
and R5 represents a halogen atom, a hydroxyl, cyano,
NR7R8, CF3 radical or a cycloalkyl, alkyl, alkoxy,
heterocycloalkyl, aryl or heteroaryl radical,
all these last-mentioned radicals being optionally
substituted as stated above or hereunder;
the other substituent radicals R2, R3, R4, R6 and X-Y
having the values as defined above or hereunder,
said products of formula (I) being in all possible
tautomeric and isomeric forms (racemates, enantiomers
and diastereoisomers), as well as salts of addition of
said products of formula (I) with organic and inorganic
acids or with organic and inorganic bases.
The present invention thus notably relates to the
products of formula (I) as defined above in which:
R2 represents a hydrogen atom;
and R5 represents a halogen atom, a hydroxyl, cyano,
NR7R8, CF3 radical or a cycloalkyl, alkyl, alkoxy,
heterocycloalkyl, aryl or heteroaryl radical, all these
last-mentioned radicals being optionally substituted as
stated above or hereunder;

the other substituent radicals R1, R3, R4, R6 and X-Y
having the values as defined above or hereunder,
said products of formula (I) being in all possible
tautomeric and isomeric forms (racemates, enantiomers
and diastereoisomers), as well as salts of addition of
said products of formula (I) with organic and inorganic
acids or with organic and inorganic bases.
The present invention thus notably relates to the
products of formula (I) as defined above in which:
R3 represents a hydrogen atom;
and R5 represents a halogen atom, a hydroxyl, cyano,
CONR7R8 radical or a cycloalkyl, alkyl, alkoxy,
heterocycloalkyl, aryl or heteroaryl radical, all these
last-mentioned radicals being optionally substituted as
stated above or hereunder;
the other radicals R2, R3, R4, R6 and X-Y having the
values as defined above or hereunder,
said products of formula (I) being in all possible
tautomeric and isomeric forms (racemates, enantiomers
and diastereoisomers), as well as salts of addition of
said products of formula (I) with organic and inorganic
acids or with organic and inorganic bases.
The present invention thus notably relates to the
products of formula (I) as defined above in which:
X-Y represents NH-C(S), N=C-NR7R8 or N=C-R;
Rl represents a hydrogen atom, a cycloalkyl radical or
an alkyl, heterocycloalkyl, aryl or heteroaryl radical,
all these radicals being optionally substituted as
stated above or hereunder;

R, which may be identical to or different from R1, is
selected from the values of Rl as defined above or
hereunder with the exception of aryl and heteroaryl;
the other substituents R2, R3, R4, R5 and R6 having, the
values as defined above or hereunder;
said products of formula (I) being in all possible
tautomeric and isomeric forms (racemates, enantiomers
and diastereoisomers), as well as salts of addition of
said products of formula (I) with organic and inorganic
acids or with organic and inorganic bases.
The present invention notably relates to the products
of formula (I) as defined above in which
X-Y represents NH-C(S), N=C-NR7R8, N=C-SR, N=C-R or
N=C-OR;
Rl represents a hydrogen atom, a cycloalkyl radical or
an alkyl, heterocycloalkyl, phenyl or heteroaryl
radical, these last-mentioned radicals being optionally
substituted;
R, which may be identical to or different from R1, is
selected from the values of R1;
R2 represents a hydrogen atom, a halogen atom or an
alkyl radical;
R3 represents a hydrogen atom, a halogen atom, a
hydroxyl radical or an alkyl or alkoxy radical;
R4 represents a hydrogen atom, a halogen atom or a
cyano, CF3 or alkyl radical;
R5 represents a hydrogen atom, a halogen atom, a
hydroxyl, cyano, NR7R8, CONR7R8, NR11C0R12 radical or a

cycloalkyl, alkyl, alkoxy, heterocycloalkyl, phenyl or
heteroaryl radical, all these last-mentioned radicals
being optionally substituted;
R6 represents a hydrogen atom, a halogen atom or an
NR7R8, alkyl or alkoxy radical;
R7 and R8 are such that:
either R7 and R8, which may be identical or different,
are such that one of R7 and R8 represents a hydrogen
atom or an alkyl radical optionally substituted with
one or more radicals, which may be identical or
different, selected from the halogen atoms and the
hydroxyl and alkoxy radicals;
and the other one of R7 and R8 represents a hydrogen
atom or a cycloalkyl, alkyl, heterocycloalkyl,
heteroaryl or phenyl radical, all these radicals being
optionally substituted;
or R7 and R8 form, together with the nitrogen atom to
which they are attached, a cyclic radical formed from 3
to 7 ring members optionally containing one or more
other heteroatoms selected from O, S or N, N being
optionally substituted with R11, said cyclic radical
itself being optionally substituted;
all the alkyl, alkoxy, cycloalkyl, heterocycloalkyl,
heteroaryl and aryl radicals, as well as the cyclic
radical that R7 and R8 can form together with the
nitrogen atom to which they are attached, indicated as
optionally substituted, thus being optionally
substituted with one or more radicals, which may be
identical or different, selected from the halogen atoms
and the hydroxyl, cyano, nitro, CF3, NR9R10, NHCOR11,
NHSO2R13, COOH, COOalk, CONR9R10, SO2NR9R10, alkoxy,

haloalkoxy, alkyl, fluoroalkyl, hydroxyalkyl,
cycloalkyl, heterocycloalkyl, heteroaryl and phenyl
radicals, these last-mentioned heteroaryl and phenyl
radicals themselves being optionally substituted with
one or more radicals, which may be identical or
different, selected from the halogen atoms and the
hydroxyl, NH2, NH(alk), N(alk)2, alkyl, hydroxyalkyl
and alkoxy radicals;
R9 and R10 are such that:
either R9 and R10, which may be identical or different,
are such that one of R9 and R10 represents a hydrogen
atom or an alkyl radical and the other one of R9 and
RIO represents a hydrogen atom or an alkyl, phenyl or
phenylalkyl radical, themselves optionally substituted
with one or more radicals, which may be identical or
different, selected from the halogen atoms and the
hydroxyl, NH2, NH(alk), N(alk)2, alkyl, hydroxyalkyl
and alkoxy radicals;
or R9 and RIO form, together with the nitrogen atom to
which they are attached, a pyrrolidinyl, morpholine,
piperidyl, azepinyl or piperazinyl radical optionally
substituted with an alkyl or phenyl radical, itself
optionally substituted with one or more radicals, which
may be identical or different, selected from the
halogen atoms and the alkyl, hydroxyl, NH2, NH(alk),
N(alk)2, alkyl, hydroxyalkyl and alkoxy radicals;
R11 and R12, which may be identical or different,
represent a hydrogen atom or an alkyl or phenyl
radical;
R13 represents an alkyl or phenyl radical;

all the above alkyl (alk) and alkoxy radicals being
linear or branched and containing at most 6 carbon
atoms;
said products of formula (I) being in all possible
tautomeric and isomeric forms (racemates, enantiomers
and diastereoisomers), as well as salts of addition of
said products of formula (I) with organic and inorganic
acids or with organic and inorganic bases.
When R9 and R10 form, together with the nitrogen atom
to which they are attached, a cyclic radical, notably
R9 and R10 form, together with the nitrogen atom to
which they are attached, a pyrrolidinyl, morpholine,
piperidyl or piperazinyl radical optionally substituted
with an alkyl radical.
The present invention relates in particular to the
products of formula (I) as defined above in which:
X-Y represents NH-C(S), N=C-NR7R8, N=C-SR, N=C-R or
N=C-OR;
R1 represents a hydrogen atom or an alkyl or phenyl
radical, optionally substituted;
R represents a hydrogen atom; a cycloalkyl, an alkyl,
heterocycloalkyl, phenyl, or heteroaryl radical, all
these radicals being optionally substituted;
R2 represents a hydrogen atom, a halogen atom or an
alkyl radical;
R3 represents a hydrogen atom, a halogen atom, a
hydroxyl radical or an alkyl radical;
R4 represents a hydrogen atom, a halogen atom or an
alkyl radical;

R5 represents a hydrogen atom; a halogen atom; a
hydroxyl, cyano, NR7R8, alkyl, alkoxy,
heterocycloalkyl, phenyl, or heteroaryl radical, all
these last-mentioned radicals as well as the phenyl
residue in NHphenyl and NH(phenylalk) being optionally
substituted;
R6 represents a hydrogen atom, a halogen atom, or an
NH2, NHalk, N(alk)2, alkyl or alkoxy radical;
R7 and R8 are such that:
either R7 and R8, which may be identical or different,
are such that one of R7 and R8 represents a hydrogen
atom or an alkyl radical; and the other one of R7 and
R8 represents a hydrogen atom, or an alkyl or
cycloalkyl radical, optionally substituted; or R7 and
R8 form, together with the nitrogen atom to which they
are attached, a cyclic radical selected from the
azetidyl, piperidyl, azepanyl, morpholinyl,
thiomorpholinyl, pyrrolidinyl, imidazolidinyl,
piperazinyl radicals optionally substituted on the
second nitrogen atom with an alkyl or phenyl radical,
themselves optionally substituted; and homopiperazinyl,
all these cyclic radicals being optionally substituted;
all the alkyl, alkoxy, heterocycloalkyl, heteroaryl and
phenyl radicals, as well as the cyclic radical that R7
and R8 can form together with the nitrogen atom to
which they are attached being optionally substituted
with one or more radicals, which may be identical or
different, selected from the halogen atoms and the
hydroxyl, NH2, NH(alk), N(alk)2, NHphenyl,
NH(phenylalk), alkyl, CF3, alkoxy, OCF3, cycloalkyl,
heterocycloalkyl, heteroaryl and phenyl radicals; these
last-mentioned heteroaryl and phenyl radicals, as well

as the phenyl residue in the NHphenyl and NH(phenylalk)
radicals, themselves being optionally substituted with
one or more radicals, which may be identical or
different, selected from the halogen atoms and the
hydroxyl, NH2, NHAlk, N(Alk)2, alkyl, hydroxyalkyl and
alkoxy radicals;
all the above alkyl (alk) and alkoxy radicals being
linear or branched and containing at most 6 carbon
atoms;
said products of formula (I) being in all possible
tautomeric and isomeric forms (racemates, enantiomers
and diastereoisomers) , as well as salts of addition of
said products of formula (I) with organic and inorganic
acids or with organic and inorganic bases.
In the products of formula (I) and hereinafter:
- the term alkyl radical or alk denotes the linear and
branched radicals containing at most 12 carbon atoms,
such as for example the methyl, ethyl, propyl, isopro-
pyl, butyl, isobutyl, sec-butyl, tert-butyl, pentyl,
isopentyl, hexyl, isohexyl and also heptyl, octyl,
nonyl and decyl radicals as well as their linear or
branched positional isomers; the term notably
represents the linear and branched radicals containing
at most 6 carbon atoms selected from those defined
above and also the linear and branched radicals
containing at most 4 carbon atoms selected from those
defined above;
- the term alkylthio radical denotes the -S-alkyl
radicals in which the alkyl radical has the meaning
stated above;

- the terms haloalkyl and haloalkylthio represent the
alkyl and alkylthio radicals as defined above
substituted with one or more halogen atoms;
the term hydroxyalkyl radical denotes the alkyl
radicals stated above substituted with at least one
hydroxyl radical;
the term alkoxy radical denotes the linear and
branched radicals containing at most 12 carbon atoms,
such as for example the methoxy, ethoxy, propoxy,
isopropoxy, linear, secondary or tertiary butoxy;
pentoxy or hexoxy radicals as well as their linear or
branched positional isomers; the term notably
represents the linear and branched radicals containing
at most 6 carbon atoms selected from those defined
above and also the linear and branched radicals
containing at most 4 carbon atoms selected from those
defined above;
- the terms NH(alk) and N(alk)2 denote amino radicals
substituted respectively with one or two alkyl
radicals, said alkyl radicals being linear or branched
and selected from the alkyl radicals as defined above,
preferably containing at most 6 carbon atoms;
- in the groups above and hereunder, NR7R8, CONR7R8,
NR11COR12, NR9R10, NHCOR11, NHCO2R11, NHCONR9R10,
NHS02R13, CONR9R10 and SO2NR9R10, the radicals R7, R8,
R9, R10, R11, R12 and R13 can assume all the values
stated for these radicals;
- the term halogen atom denotes the chlorine, bromine,
iodine or fluorine atoms and preferably the chlorine,
bromine or fluorine atom;

the term cycloalkyl radical denotes a saturated
carbocyclic radical containing 3 to 10 carbon atoms and
thus notably denotes the cyclopropyl, cyclobutyl,
cyclopentyl and cyclohexyl radicals and quite
particularly the cyclopentyl and cyclohexyl radicals;
the term heterocycloalkyl radical thus denotes a
monocyclic or bicyclic carbocyclic radical interrupted
by one or more heteroatoms, which may be identical or
different, selected from the oxygen, nitrogen or
sulphur atoms: we may mention for example the radicals
morpholinyl, thiomorpholinyl, aziridyl, azetidyl,
piperazinyl, piperidyl, homopiperazinyl, pyrrolidinyl,
imidazolidinyl, pyrazolidinyl, tetrahydrofuryl,
tetrahydrothienyl, hexahydropyran,
oxodihydropyridazinyl radicals, all these radicals
being optionally substituted;
- the terms aryl and heteroaryl denote unsaturated or
partially unsaturated radicals, respectively
carbocyclic and heterocyclic, monocyclic or bicyclic,
containing at most 12 ring members, and can optionally
contain a -C(O) group, the heterocyclic radicals
containing one or more heteroatoms which may be
identical or different selected from 0, N, or S, with
N, if necessary, optionally substituted;
the term aryl radical thus denotes monocyclic or
bicyclic radicals containing 4 to 12 ring members such
as for example the phenyl, naphthyl, biphenyl, indenyl,
fluorenyl and anthracenyl radicals, more particularly
the phenyl and naphthyl radicals and even more
particularly the phenyl radical. It may be noted that a
carbocyclic radical containing a -C(O) group is for
example the tetralone radical;

- the term heteroaryl radical thus denotes -monocyclic
or bicyclic radicals containing 4 to 12 ring members:
monocyclic heteroaryl radicals such as for example the
thienyl radicals such as 2-thienyl and 3-thienyl, furyl
such as 2-furyl, 3-furyl, pyranyl, pyrrolyl,
pyrrolinyl, pyrazolinyl, imidazolyl, pyrazolyl, pyridyl
such as 2-pyridyl, 3-pyridyl and 4-pyridyl, pyrazinyl,
pyrimidinyl, pyridazinyl, oxazolyl, thiazolyl,
isothiazolyl, diazolyl, thiadiazolyl, thiatriazolyl,
oxadiazolyl, isoxazolyl such as 3- or 4-isoxazolyl,
furazanyl, tetrazolyl whether free or salified, all
these radicals being optionally substituted, among
which more particularly the thienyl radicals such as 2-
thienyl and 3-thienyl, furyl such as 2-furyl, pyrrolyl,
pyrrolinyl, pyrazolinyl, imidazolyl, pyrazolyl,
oxazolyl, isoxazolyl, pyridyl, pyridazinyl, these
radicals being optionally substituted; bicyclic
heteroaryl radicals such as for example the
benzothienyl radicals such as 3-benzothienyl,
benzothiazolyl, quinolyl, isoguinolyl, dihydroquinolyl,
quinolizinyl, tetrahydroquinolizinyl, quinolone,
tetralone, adamentyl, benzofuryl, isobenzofuryl,
dihydrobenzofuran, ethylenedioxyphenyl, thianthrenyl,
benzopyrrolyl, benzimidazolyl, benzoxazolyl,
thionaphthyl, indolyl, azaindolyl, indazolyl, purinyl,
thienopyrazolyl, tetrahydroindazolyl,
tetrahydrocyclopentapyrazolyl, dihydrofuropyrazolyl,
tetrahydropyrrolopyrazolyl,
oxotetrahydropyrrolopyrazolyl,
tetrahydropyranopyrazolyl, tetrahydropyridinopyrazolyl
or oxodihydropyridino-pyrazolyl, all these radicals
being optionally substituted.
As examples of heteroaryl radicals, we may mention more
particularly the pyrimidinyl, pyridyl, pyrrolyl,

azaindolyl, indazolyl or pyrazolyl radicals, optionally
substituted with one or more substituents which may be
identical or different as stated above.
the term phenylalkyl denotes an alkyl radical as
defined above in which the alkyl radical is linear or
branched, preferably containing at most 4 carbon atoms
and the phenyl radical is optionally substituted with
one or more radicals as defined previously or
hereunder;
The carboxy radical or radicals of the products of
formula (I) can be salified or esterified by the
various groups known to a person skilled in the art,
among which we may mention, for example:
among the salification compounds, inorganic bases
such as, for example, an equivalent of sodium, of
potassium, of lithium, of calcium, of magnesium or of
ammonium or organic bases such as, for example,
methylamine, propylamine, trimethylamine, diethylamine,
triethylamine, N,N-dimethylethanolamine, tris(hydroxy-
methyl) aminomethane, ethanolamine, pyridine, picoline,
dicyclohexylamine, morpholine, benzylamine, procaine,
lysine, arginine, histidine, N-methylglucamine,
among the esterification compounds, the alkyl
radicals for forming alkoxycarbonyl groups such as, for
example, methoxycarbonyl, ethoxycarbonyl, tert-
butoxycarbonyl or benzyloxycarbonyl, and said alkyl
radicals can be substituted with radicals selected for
example from the halogen atoms, the hydroxyl, alkoxy,
acyl, acyloxy, alkylthio, amino or aryl radicals such
as, for example, in the chloromethyl, hydroxypropyl,
methoxymethyl, propionyloxymethyl, methylthiomethyl,
dimethylaminoethyl, benzyl or phenethyl groups.

The salts of addition of the products of formula (I)
with organic or inorganic acids can be, for example,
the salts formed with hydrochloric, hydrobromic,
hydriodic, nitric, sulphuric, phosphoric, propionic,
acetic, trifluoroacetic, formic, benzoic, maleic,
fumaric, succinic, tartaric, citric, oxalic, glyoxylic,
aspartic, ascorbic acids, the alkylmonosulphonic acids
such as for example methanesulphonic acid,
ethanesulphonic acid, propanesulphonic acid,
alkyldisulphonic acids such as for example
methanedisulphonic acid, alpha, beta-ethanedisulphonic
acid, arylmonosulphonic acids such as benzenesulphonic
acid and the aryldisulphonic acids.
It may be recalled that stereoisomerism can be defined
broadly as the isomerism of compounds having the same
structural formulae, but in which the various groups
are arranged differently in space, such as notably in
monosubstituted cyclohexanes in which the substituent
can be in the axial or equatorial position, and the
various possible rotational conformations of the
derivatives of ethane. However, there is another type
of stereoisomerism, due to the different spatial
arrangements of substituents that are fixed either on
double bonds, or on rings, which is often called
geometric isomerism or cis-trans isomerism. The term
stereoisomers is used in the present application in its
broadest sense and therefore applies to all of the
compounds stated above.
The present invention thus relates to the products of
formula (I) as defined above in which
X-Y represents NH-C(S), N=C-NR7R8, N=C-SR, N=C-R or
N=C-OR;

R1 represents a hydrogen atom or an alkyl or phenyl
radical, optionally substituted;
R, which may be identical to or different from R1, is
selected from the values of R1;
R2 represents a hydrogen atom, a halogen atom or an
alkyl radical;
R3 represents a hydrogen atom, a halogen atom, a
hydroxyl radical or an alkyl radical;
R4 represents a hydrogen atom, a halogen atom or an
alkyl radical;
R5 represents a hydrogen atom, a halogen atom, a
hydroxyl radical, an NH2, NHalk, N(alk)2, NR7R8,
NHphenyl, NH(phenylalk) radical or an alkyl,
heterocycloalkyl, alkoxy, phenyl or heteroaryl radical,
these last-mentioned radicals as well as the phenyl
residue in NHphenyl and NH(phenylalk) being optionally
substituted;
R6 represents a hydrogen atom, a halogen atom, or an
NH2, NHalk, N(alk)2, alkyl or alkoxy radical;
R7 and R8 are such that:
either R7 and R8, which may be identical or different,
are such that one of R7 and R8 represents a hydrogen
atom or an alkyl radical;
and the other one of R7 and R8 represents a hydrogen
atom, or an alkyl or cycloalkyl radical, optionally
substituted;
or R7 and R8 form, together with the nitrogen atom to
which they are attached, a cyclic radical containing 4

to 6 ring members selected from azetidyl; piperidyl;
morpholinyl; thiomorpholinyl; pyrrolidinyl;
imidazolidinyl; piperazinyl; and homopiperazinyl, these
radicals being optionally substituted;
all the alkyl, alkoxy, heteroaryl and phenyl radicals,
as well as the cyclic radical that R7 and R8 can form
together with the nitrogen atom to which they are
attached, indicated as optionally substituted, thus
being optionally substituted with one or more radicals,
which may be identical or different, selected from the
halogen atoms and the hydroxyl, NH2, NH(alk), N(alk)2,
NHphenyl, NH(phenylalk), alkyl, CF3, alkoxy, OCF3,
cycloalkyl, heterocycloalkyl, heteroaryl and phenyl
radicals; these last-mentioned heteroaryl and phenyl
radicals, as well as the phenyl residue in the NHphenyl
and NH(phenylalk) radicals, themselves being optionally
substituted with one or more radicals, which may be
identical or different, selected from the halogen atoms
and the hydroxyl, NH2, NHAlk, N(Alk)2, alkyl,
hydroxyalkyl and alkoxy radicals;
all the above alkyl (alk) and alkoxy radicals being
linear or branched and containing at most 6 carbon
atoms;
said products of formula (I) being in all possible
tautomeric and isomeric forms (racemates, enantiomers
and diastereoisomers) , as well as salts of addition of
said products of formula (I) with organic and inorganic
acids or with organic and inorganic bases.
In the products of formula (I) according to the present
invention, the substituents X-Y, R1, R2, R3, R4, R5 and
R6 can notably have, independent of one another, the
following values i) to vii):

i) notably X-Y represents NH-C(S), N=C-NR7R8 or N=C-R
with NR7R8 and R as defined above or hereunder;
ii) notably R1 represents a hydrogen atom or an alkyl
or phenyl radical, optionally substituted with N(alk)2,
morpholinyl or pyrrolidinyl, alkoxy or phenyl;
iii) notably R2 represents a hydrogen atom, or an alkyl
radical;
iv) notably R3 represents a hydrogen atom;
v) notably R4 represents a hydrogen atom or a halogen
atom;
vi) notably R5 represents a hydrogen atom; a halogen
atom; a hydroxyl, cyano, NH2, NHalk, N(alk)2, NHphenyl,
NH(phenylalk), CF3 radical; alkyl radical optionally
substituted with phenyl; alkoxy; heterocycloalkyl such
as for example morpholinyl; phenyl optionally
substituted with a heterocyclic radical such as for
example piperazinyl; or heteroaryl such as for example
thienyl, these last-mentioned radicals as well as
phenyl and the phenyl residue in NHphenyl and
NH(phenylalk), being optionally substituted;
vii) notably R6 represents a hydrogen atom or a halogen
atom;
all the alkyl, alkoxy, heterocycloalkyl, heteroaryl and
phenyl radicals being optionally substituted with one
or more radicals which may be identical or different as
stated above or hereunder,
it being understood that for each of the values i) to
vii), the other substituents of said products of
formula (I) can have any one of the values defined
above or hereunder,

said products of formula (I) being in all possible
tautomeric and isomeric forms (racemates, enantiomers
and diastereoisomers) , as well as salts of addition of
said products of formula (I) with organic and inorganic
acids or with organic and inorganic bases.
In the products of formula (I) according to the present
invention, in the radical X-Y, R notably represents a
hydrogen atom; a cycloalkyl radical; alkyl radical;
heterocycloalkyl radical such as notably morpholino,
tetrahydropyran; phenyl; or heteroaryl such as notably
pyridine, quinoline, quinolizinyl,
tetrahydroquinolizinyl, indolyl, thienyl, furanyl,
pyrrolyl and pyrazolyl; all these radicals being
optionally substituted as stated above or hereunder.
More precisely R represents a hydrogen atom; or a
cycloalkyl radical such as notably cyclohexyl; an alkyl
radical optionally substituted notably with cycloalkyl
such as for example cyclopropyl, cyclobutyl,
cyclopentyl, with phenyl or with heteroaryl such as
notably pyridine, all these radicals being optionally
substituted as stated above or hereunder;
heterocycloalkyl such as notably morpholino or
tetrahydropyran; phenyl or heteroaryl such as notably
pyridine, quinolyl, thienyl, furanyl, pyrrolyl and
pyrazolyl optionally substituted as stated above or
hereunder.
When the products of formula (I) according to the
present invention bear a radical NR7R8, notably R7 and
R8 are such that either R7 and R8, which may be
identical or different, are such that one of R7 and R8
represents a hydrogen atom or an alkyl radical; and the
other one of R7 and R8 represents a hydrogen atom, or
an alkyl radical optionally substituted with

cycloalkyl; or R7 and R8 form, together with the
nitrogen atom to which they are attached, a piperidyl;
azepinyl; morpholinyl; pyrrolidinyl; piperazinyl
radical optionally substituted on its second nitrogen
atom with alkyl or phenyl; these radicals being
optionally substituted as stated above or hereunder.
The present invention thus relates to the products of
formula (I) as defined above in which
X-Y, R2, R3, R4 and R6 have the meanings stated above,
R1 represents a hydrogen atom or an alkyl radical,
optionally substituted;
R5 represents a hydrogen atom, a halogen atom, a
hydroxyl, CF3, NH2, NHalk, N(alk)2 radical or an alkyl,
alkoxy or phenyl radical, optionally substituted;
the alkyl radical that can be represented by R1 or the
alkyl, alkoxy or phenyl radical that can be represented
by R5, being optionally substituted with one or more
radicals, which may be identical or different, selected
from the halogen atoms and the hydroxyl, NHalk,
N(alk)2, alkoxy, cycloalkyl, heterocycloalkyl,
heteroaryl and phenyl radicals, these last-mentioned
heteroaryl and phenyl radicals being optionally
substituted with one or more radicals, which may be
identical or different, selected from the halogen atoms
and the hydroxyl, NH2, NHAlk, N(Alk)2, alkyl,
hydroxyalkyl and alkoxy radicals;
R7 and R8 are such that:
either R7 and R8, which may be identical or different,
are such that one of R7 and R8 represents a hydrogen
atom or an alkyl radical,

and the other one of R7 and R8 represents a hydrogen
atom, an alkyl radical optionally substituted with one
or more radicals, which may be identical or different,
selected from the halogen atoms, the hydroxyl, NH2,
NHalk, N(alk)2, NH(phenyl), NH(phenylalk) , alkoxy,
OCF3, cycloalkyl radicals, and the pyrrolidinyl,
piperazinyl, piperidyl, morpholinyl and phenyl
radicals, all these last-mentioned cyclic radicals, as
well as the phenyl residue in the phenylalkyl radical,
themselves being optionally substituted with one or
more radicals, which may be identical or different,
selected from the halogen atoms and the hydroxyl, NH2,
NHAlk, N(alk)2, alkoxy, alkyl and hydroxyalkyl
radicals;
or R7 and R8 form, together with the nitrogen atom to
which they are attached, a radical preferably selected
from the piperidyl, morpholinyl radicals, and the
pyrrolidinyl, piperazinyl and homopiperazinyl radicals
optionally substituted with one or more radicals, which
may be identical or different, selected from the alkyl
and phenyl radicals, themselves optionally substituted
with one or more radicals selected from the halogen
atoms and the hydroxyl, NH2, NHAlk, N(Alk)2, alkoxy and
cycloalkyl radicals;
all the above alkyl (alk) and alkoxy radicals being
linear or branched and containing at most 6 carbon
atoms;
said products of formula (I) being in all possible
tautomeric and isomeric forms (racemates, enantiomers
and diastereoisomers) , as well as salts of addition of
said products of formula (I) with organic and inorganic
acids or with organic and inorganic bases.

The present invention thus relates to the products of
formula (I) as defined above in which
X-Y represents NH-C(S), N=C-NR7R8 or N=C-R,
R7, R8 and R being selected from all the values defined
above for R7, R8 and R and the other substituents R1,
R2, R3, R4, R5 and R6 of said products of formula (I)
being selected from all the values defined above
respectively for R1, R2, R3, R4, R5 and R6,
said products of formula (I) being in all possible
tautomeric and isomeric forms (racemates, enantiomers
and diastereoisomers), as well as salts of addition of
said products of formula (I) with organic and inorganic
acids or with organic and inorganic bases.
The present invention thus relates to the products of
formula (I) as defined above in which
X-Y represents NH-C(S), N=C-NR7R8 or N=C-R;
Rl represents a hydrogen atom or an alkyl radical
optionally substituted with one or more radicals, which
may be identical or different, selected from the
halogen atoms and the N(alk)2 and alkoxy radicals;
R, which may be identical to or different from Rl, is
selected from the values of Rl;
R2 represents a hydrogen atom, a halogen atom or an
alkyl radical;
R3 represents a hydrogen atom or an alkyl radical;
R4 represents a hydrogen atom or a halogen atom,
R5 represents a hydrogen atom, a halogen atom or a
hydroxyl, NH2, NHalk, N(alk)2, alkyl, alkoxy or phenyl

radical, the alkyl radical being optionally substituted
with an alkoxy, N(alk)2 or heterocycloalkyl radical and
the phenyl radical being optionally substituted with
one or more radicals, which may be identical or
different, selected from the halogen atoms and the
hydroxyl, NH2, NHalk, N(alk)2, alkyl and alkoxy
radicals;
R6 represents a hydrogen atom, a halogen atom or an
alkyl radical;
and R7 and R8 are such that:
either R7 and R8, which may be identical or different,
are such that one of R7 and R8 represents a hydrogen
atom or an alkyl radical, and the other one of R7 and
R8 represents an alkyl radical optionally substituted
with a cycloalkyl radical;
or R7 and R8 form, together with the nitrogen atom to
which they are attached, a pyrrolidinyl, morpholine,
piperidyl or piperazinyl radical optionally substituted
with an alkyl radical;
said products of formula (I) being in all possible
tautomeric and isomeric forms (racemates, enantiomers
and diastereoisomers), as well as salts of addition of
said products of formula (I) with organic and inorganic
acids or with organic and inorganic bases.
In the products of formula (I) as defined above, we may
note quite particularly the products for which R3
represents a hydrogen atom, the other substituents R1,
R2, R4, R5, R6 and X-Y of said products of formula (I)
being selected from any one of the values defined
above,

said products of formula (I) being in all possible
tautomeric and isomeric forms (racemates, enantiomers
and diastereoisomers), as well as salts of addition of
said products of formula (I) with organic and inorganic
acids or with organic and inorganic bases.
The present invention thus relates to the products of
formula (I) as defined above in which
X-Y represents NH-C(S), N=C-NR7R8 or N=C-R;
R1 and R2, which may be identical or different,
represent a hydrogen atom or an alkyl radical;
R3 represents a hydrogen atom;
R4, R5 and R6, which may be identical or different,
represent a hydrogen atom or a halogen atom;
R7 and R8 represent the values defined in any one of
the above claims;
all the above alkyl (alk) radicals being linear or
branched and containing at most 4 carbon atoms;
said products of formula (I) being in all possible
tautomeric and isomeric forms (racemates, enantiomers
and diastereoisomers), as well as salts of addition of
said products of formula (I) with organic and inorganic
acids or with organic and inorganic bases.
The present invention relates notably to the products
of formula (I) as defined above in which
X-Y represents N=C-NR7R8 or N=C-R,
R7, R8 and R being selected from all the values defined
above for R7, R8 and R and the other substituents R1,
R2, R3, R4, R5 and R6 of said products of formula (I)

being selected from all the values defined above
respectively for R1, R2, R3, R4, R5 and R6,
said products of formula (I) being in all possible
tautomeric and isomeric forms (racemates, enantiomers
and diastereoisomers), as well as salts of addition of
said products of formula (I) with organic and inorganic
acids or with organic and inorganic bases.
The present invention relates notably to the products
of formula (I) as defined above in which
X-Y represents N=C-NR7R8,
R7 and R8 being selected from all the values defined
above for R7 and R8 and the other substituents R1, R2,
R3, R4, R5 and R6 of said products of formula (I) being
selected from all the values defined above respectively
for R1, R2, R3, R4, R5 and R6,
said products of formula (I) being in all possible
tautomeric and isomeric forms (racemates, enantiomers
and diastereoisomers), as well as salts of addition of
said products of formula (I) with organic and inorganic
acids or with organic and inorganic bases.
The present invention relates notably to the products
of formula (I) as defined above in which
X-Y represents N=C-R,
R being selected from all the values defined above for
R7, R8 and R and the other substituents R1, R2, R3, R4,
R5 and R6 of said products of formula (I) being
selected from all the values defined above respectively
for R1, R2, R3, R4, R5 and R6,

said products of formula (I) being in all possible
tautomeric and isomeric forms (racemates, enantiomers
and diastereoisomers) , as well as salts of addition of
said products of formula (I) with organic and inorganic
acids or with organic and inorganic bases.
The present invention relates notably to the products
of formula (I) as defined above in which
X-Y represents N=C-OR,
R being selected from all the values defined above for
R7, R8 and R and the other substituents R1, R2, R3, R4,
R5 and R6 of said products of formula (I) being
selected from all the values defined above respectively
for R1, R2, R3, R4, R5 and R6,
said products of formula (I) being in all possible
tautomeric and isomeric forms (racemates, enantiomers
and diastereoisomers), as well as salts of addition of
said products of formula (I) with organic and inorganic
acids or with organic and inorganic bases.
The present invention relates more particularly to the
products of formula (I) as defined above, having the
following names:
- (5Z)-5-(1H-pyrrolo[2,3-b]pyridin-3-ylmethylene)-2-
thioxoimidazolidin-4-one
- (5Z)-5-t(5-chloro-1H-pyrrolo[2,3-b]pyridin-3-
yl)methylene]-2-thioxoimidazolidin-4-one
- (5Z)-2-[(cyc1opropylmethyl)amino]-5-(1H-pyrrolo[2,3-
b]pyridin-3-ylmethylene)-3,5-dihydro-4H-imidazol-4-one

- (5Z)-5-[(5-chloro-1H-pyrrolo[2,3-b]pyridin-3-
yl)methylene]-2-[(cyclopropylmethyl)amino]-3,5-dihydro-
4H-imidazol-4-one
- (5Z)-5-[(6-chloro-1H-pyrrolo[2,3-b]pyridin-3-
yl)methylene]-2-[(cyclopropylmethyl)amino]-3,5-dihydro-
4H-imidazol-4-one
- (5Z)-2-[(cyclopropylmethyl)amino]-3-methyl-5-(1H-
pyrrolo[2,3-b]pyridin-3-ylmethylene)-3,5-dihydro-4H-
imidazol-4-one
- (5Z)-2-butyl-5-(1H-pyrrolo[2,3-b]pyridin-3-
ylmethylene)-3,5-dihydro-4H-imidazol-4-one
- (5Z)-2-azepan-1-yl-5-[(5-chloro-1H-pyrrolo[2,3-
b]pyridin-3-yl)methylidene]-3,5-dihydro-4H-imidazol-4-
one
- (5Z)-5-[(5-chloro-1H-pyrrolo[2,3-b]pyridin-3-
yl)methylidene]-2-piperidin-1-yl-3,5-dihydro-4H-
imidazol-4-one
- (5Z)-5-[(5-chloro-1H-pyrrolo[2,3-b]pyridin-3-
yl)methylidene]-2-[methyl(2-methylpropyl)amino]-3,5-
dihydro-4H-imidazol-4-one
- (5Z)-5-[(5-bromo-1H-pyrrolo[2,3-b]pyridin-3-
yl)methylidene]-2-[(cyclopropylmethyl)amino]-3,5-
dihydro-4H-imidazol-4-one
- (5Z)-2-[(cyclopropylmethyl)amino]-5-[(5-methoxy-1H-
pyrrolo[2,3-b]pyridin-3-yl)methylidene]-3,5-dihydro-4H-
imidazol-4-one
- (5Z)-2-[(cyclopropylmethyl)amino]-5-[(5-fluoro-1H-
pyrrolo[2,3-b]pyridin-3-yl)methylidene]-3,5-dihydro-4H-
imidazol-4-one

- (5Z)-2-azepan-1-yl-5-[(5-fluoro-1H-pyrrolo[2,3-
b]pyridin-3-yl)methylidene]-3,5-dihydro-4H-imidazol-4-
one
- 3-[(Z)-{2-[(cyclopropylmethyl)amino]-5-oxo-l,5-
dihydro-4H-imidazol-4-ylidene}methyl]-1H-pyrrolo[2,3-
b]pyridine-5-carbonitrile
- (5Z)-2-[(cyclopropylmethyl)amino]-5-[(5-phenyl-1H-
pyrrolo[2,3-b]pyridin-3-yl)methylidene]-3,5-dihydro-4H-
imidazol-4-one
- (5Z)-2-[(cyclopropylmethyl)amino]-5-{[5-
(trifluoromethyl)-1H-pyrrolo[2,3-b]pyridin-3-
yl]methylidene}-3,5-dihydro-4H-imidazol-4-one
- (5Z)-5-[(5-chloro-1H-pyrrolo[2,3-b]pyridin-3-
yl)methylidene]-2-(methylsulphanyl)-3,5-dihydro-4H-
imidazol-4-one
- (5Z)-2-butyl-5-[(5-chloro-1H-pyrrolo[2,3-b]pyridin-3-
yl)methylidene]-3,5-dihydro-4H-imidazol-4-one
- (5Z)-2-(3-methylbutyl)-5-(1H-pyrrolo[2,3-b]pyridin-3-
ylmethylidene)-3,5-dihydro-4H-imidazol-4-one
- (5Z)-2-cyclohexyl-5-(1H-pyrrolo[2,3-b]pyridin-3-
ylmethylidene)-3,5-dihydro-4H-imidazol-4-one
- (5Z)-5-[(5-chloro-1H-pyrrolo[2,3-b]pyridin-3-
yl)methylidene]-3-methyl-2-(tetrahydro-2H-pyran-4-yl)-
3,5-dihydro-4H-imidazol-4-one
- (5Z)-5-[(5-chloro-1H-pyrrolo[2,3-b]pyridin-3-
yl)methylidene]-3-methyl-2-(2-methylpropyl)-3,5-
dihydro-4H-imidazol-4-one

- (5Z)-2-(cyclopropylmethyl)-5-(5-chloro-1H-
pyrrolo[2,3-b]pyridin-3-ylmethylidene)-3,5-dihydro-4H-
imidazol-4-one
- (5Z)-2-(1-methylethyl)-5-(5-chloro-1H-pyrrolo[2,3-
b]pyridin-3-ylmethylidene)-3,5-dihydro-4H-imidazol-4-
one
- (5Z)-2-[benzyl(methyl)amino]-5-[(5-chloro-1H-
pyrrolo [2,3-b]pyridin-3-yl)methylidene]-3,5-dihydro-4H-
imidazol-4-one
- (5Z)-5-[(5-chloro-1H-pyrrolo[2,3-b]pyridin-3-
yl)methylidene]-2-[(2-methoxyethyl)(methyl)amino]-3,5-
dihydro-4H-imidazol-4-one
said products of formula(I)being in all possible
isomeric forms: racemates, enantiomers and
diastereoisomers, as well as salts of addition of said
products of formula (I) with organic and inorganic
acids or with organic and inorganic bases.
The products of formula (I) as defined above can be
prepared by the general methods known by a person
skilled in the art and more particularly can be
prepared using the methods of synthesis described in
the following Schemes 1 to 7.
The present invention thus also relates to methods of
preparation of the products of formula (I), and notably
the methods defined hereunder in Schemes 1 to 7 which
are used for the preparation of compounds described in
tables presented below.
The tables and schemes that follow are related as
follows:

- Tables 1, 2 and 4 describe products of formula (I)
that can be prepared according to Scheme 1
- Table 6 describes products of formula (I) that can be
prepared according to Scheme 2
- Table 3 describes a product of formula (I) that can
be prepared according to Scheme 3
- Table 5 describes products of formula (I) that can be
prepared according to Schemes 3 and 5
- Table 7 describes products of formula (I) that can be
prepared according to Scheme 6 or 7
- Table 8 describes products of formula (I) that can be
prepared according to Schemes 1 to 7
Scheme 1: The case when X-Y equals N=C-NR7R8 and NH-
C(S) :

In a first stage, the (5Z)-5-[(1H-pyrrolo[2,3-
b]pyridin-3-yl)methylene]-2-thioxoimidazolidin-4-ones
(la) are obtained by Knoevenagel reaction between a 2-
thioxoimidazolidin-4-one (III) and an aldehyde, ketone
or ester of formula (II) derived from 1H-pyrrolo[2,3-
b]pyridine, in the presence of a base such as
piperidine in a solvent such as ethanol. The
temperature of choice for carrying out this reaction is
between room temperature and the reflux temperature.

All other usual conditions for a reaction of the
Knoevenagel type can be used.
Table 1 gives examples of compounds (Ia) prepared
according to Scheme 1:






In a second stage, the (5Z)-5-[(1H-pyrrolo[2,3-
b]pyridin-3-yl)methylene]-2-amino-3,5-dihydro-4H-
imidazol-4-ones (Ib) are obtained by reaction between
(5Z)-5-[(1H-pyrrolo[2,3-b]pyridin-3-yl)methylene]-2-
thioxoimidazolidin-4-one (1a) and a primary or
secondary amine of general structure (IV) (with R7 and
R8 as defined in general formula (I) for example in
ethanol at a temperature varying from 120 to 170°C in a
sealed tube under microwave irradiation.
Table 2 gives examples of compounds (Ib) prepared
according to Scheme 1:


Table 4 gives examples of compounds I(b) prepared
according to Scheme 1: these products of formula (I)

are described hereunder as examples in the experimental
section.




Scheme 2 : The case when X-Y equals N=C-SR and N=C-
NR7R8:

Alternatively, the (5Z)-5-[(1H-pyrrolo[2,3-b]pyridin-3-
yl)methylene]-2-amino-3,5-dihydro-4H-imidazol-4-ones
(Ic) can be prepared according to Scheme 2. The (5Z)-5-
[(1H-pyrrolo[2,3-b]pyridin-3-yl)methylene]-2-
thioxoimidazolidin-4-ones (Ia) are reacted with an
alkylating agent (preferably, for example, methyl
iodide) in the presence of a base such as
diisopropylethylamine or sodium hydroxide, to give a
thioalkylated derivative (Ic) . The thioalkyl group is
finally replaced in a second stage with an amine
R7R8NH, to obtain the derivatives (Ib). Said
replacement is carried out in a solvent such as
acetonitrile or ethanol, at a temperature between room
temperature and the reflux temperature, or
alternatively in a sealed tube under microwave
irradiation.
Table 6 gives examples of compounds I(c) prepared
according to Scheme 2: these products of formula (Ic)
are described hereunder as examples in the experimental
section.
Table 6


Scheme 3: The case when X-Y equals N=C-R; 1st synthetic
route:

The (5Z)-5-[(1H-pyrrolo[2,3-b]pyridin-3-yl)methylene]-
3,5-dihydro-4H-imidazolidin-4-ones (Id) are obtained by
Knoevenagel reaction between an imidazolidin-4-one (V)
and an aldehyde, ketone or ester of formula (II)
derived from 1H-pyrrolo[2,3-b]pyridine, in the presence
of a base such as piperidine in a solvent such as
ethanol, according to Scheme 3. The temperature of
choice for carrying out this reaction is between room
temperature and the reflux temperature. All other usual
conditions for a reaction of the Knoevenagel type, such
as acidic conditions, can be used. The imidazolidin-4-
ones (V) can be prepared according to J. Org. Chem.
1999, 64(22), 8084.
An example of preparation of a product of formula (I)
according to Scheme 3 is given in the experimental

section hereunder as Example 13 as presented in Table
3.

In a first stage, the (5Z)-5-[(1H-pyrrolo[2,3-
b]pyridin-3-yl)methylene]-2-oxoimidazolidin-4-ones
(VII) are obtained by Knoevenagel reaction between a 2-
oxoimidazolidin-4-one (VI) and an aldehyde, ketone or
ester of formula (II) derived from lH-pyrrolo [2,3-
b]pyridine, in the presence of a base such as
piperidine in a solvent such as ethanol, according to
Scheme 4. The temperature of choice for carrying out
this reaction is between room temperature and reflux.
Any other usual conditions for a reaction of the
Knoevenagel type, such as acidic conditions, can be
used.

In a second stage, the (5Z)-5-[(1H-pyrrolo[2,3-
b]pyridin-3-yl)methylene]-2-alkoxy-3,5-dihydro-4H-
imidazol-4-ones (Ie) are obtained by reaction between
the (5Z)-5-[(1H-pyrrolo[2,3-b]pyridin-3-yl)methylene]-
2-oxoimidazolidin-4-ones (VII) and an alkylating agent
RX (VIII) in an inert solvent at a temperature varying
from room temperature to reflux. Alkylating agents VIII
that are known to promote O-alkylation, such as halides
or salts of oxonium tetrafluoroborate are preferred.
Scheme 5: The case when X-Y equals N=C-R: 2nd synthetic
route

Alternatively, the (5Z)-5-[(1H-pyrrolo[2,3-b]pyridin-3-
yl)methylene]-3,5-dihydro-4H-imidazolidin-4-ones (Id)
are obtained from an oxazolone of formula (X) . In a
first stage, the cyclo-condensation of an N-acylated
amide derivative of glycine (IX) on an aldehyde, ketone
or ester of formula (II) , in the presence of a base
such as sodium acetate in acetic anhydride and at a
temperature between room temperature and the reflux
temperature, gives an oxazolone of formula (X). This

reaction with indole derivatives has been described: J.
Am. Chem. Soc. 1946, 647. In a second stage, the
reaction of the oxazolone (X) with an excess of amine
of formula R1NH2, or of ammonia, gives an imidazolone
(Id). This reaction is carried out in a solvent such as
methanol or ethanol, at a temperature between room
temperature and the reflux temperature. Alternatively,
this reaction can be carried out in a sealed tube under
microwave irradiation, at a temperature between 80°C
and 200°C.
Table 5 The products of formula (I) in Table 5 can be
prepared according to Scheme 3 or 5 above and are
described as examples in the experimental section
hereunder.



Scheme 6: The case when X-Y equals N=C-OR


The compounds of type (Ie) can be prepared by analogy
with the derivatives of imidazopyridines described for
example in J. Org. Chem 2001, 66(20), 6576-6584.
Scheme 7: The case when X-Y equals N=C-OR

Alternatively, the molecules of type (Ie) can be
prepared by first forming the imidazolone according to
a method similar to that described for example in Bull.
Korean Chem. Soc. 2007, 28(6), 913-914. In a first
stage, the dehydration of a urea (XIV), with for
example bromine and triphenylphosphine, gives a
carbodiimide of formula (XV). In a second stage,

addition of an alcohol and cyclization gives the
imidazolone of formula (XVI). Finally, condensation on
an aldehyde or ketone of formula (II) gives a compound
(Ie).
The examples in Table 7 can be prepared according to
Scheme 6 or 7.

Table 8: the compounds in Table 8 can be prepared
according to the methods described above in Schemes 1
to 7:











Said products obtained by the above schemes can be
products of formula (I) or alternatively, to obtain
products of formula (I) or for transformation to other
products of formula (I) , can be submitted, if desired
and if necessary, in any order, to one or more
transformation reactions known by a person skilled in
the art, for example the following reactions:
a) a reaction of esterification or of amidation of an
acid function,

b) if applicable, a reaction of oxidation of an
alkylthio group to the corresponding sulphoxide or
sulphone,
c) a reaction of reduction of the free or esterified
carboxy function to an alcohol function,
d) a reaction of transformation of an alkoxy function
to a hydroxyl function, or alternatively of a hydroxyl
function to an alkoxy function,
e) a reaction of elimination of the protecting groups
that protected reactive functions may be carrying,
f) a reaction of salification with an inorganic or
organic acid or with a base to obtain the corresponding
salt,
g) a reaction for resolving racemic forms to resolved
products,
said products of formula (I) thus obtained being in all
possible isomeric forms: racemates, enantiomers and
diastereoisomers.
It should be noted that said reactions of
transformation of substituents into others substituents
can also be carried out on the starting products as
well as on the intermediates as defined above before
continuing the synthesis according to the reactions
stated in the method described above.
The methods described in the above schemes can be
carried out according to the usual conditions known by
a person skilled in the art and notably according to
the reaction conditions described hereunder for
preparation of the examples of the present application.

Among the starting products used for preparation of the
products of formula (I) according to the present
invention, some are available commercially or can be
prepared according to the usual methods known by a
person skilled in the art.
It is also possible, notably, to prepare some starting
products from products that are known or are available
commercially, for example by submitting them to one or
more reactions known by a person skilled in the art.
The experimental section hereunder gives examples of
said starting products.
For preparation of the products of formula (I)
according to the present invention, the various
reactive functions that can be carried by some
compounds of the reactions defined above can, if
necessary, be protected: this relates for example to
free hydroxyl, acyl, carboxy radicals or alternatively
amino and monoalkylamino radicals which can be
protected with appropriate protecting groups.
We may mention the following list, which is not
exhaustive, of examples of protection of reactive
functions:
- hydroxyl groups can be protected for example with
alkyl radicals such as tert-butyl, trimethylsilyl,
tert-butyldimethylsilyl, methoxy-methyl,
tetrahydropyranyl, benzyl or acetyl,
- amino groups can be protected for example with
acetyl, trityl, benzyl, tert-butoxycarbonyl, BOC,
benzyloxycarbonyl, phthalimido or other radicals known
in peptide chemistry,

- acyl groups such as the formyl group can be protected
for example in the form of cyclic or acyclic ketals or
thioketals such as dimethyl or diethylketal or ethylene
dioxyketal, or diethylthioketal or ethylenedithioketal,
- the acid functions of the products described above
can, if desired, be amidated with a primary or
secondary amine for example in methylene chloride in
the presence, for example, of 1-ethyl-3-
(dimethylaminopropyl) carbodiimide hydrochloride at
room temperature,
- the acid functions can be protected for example in
the form of esters formed with easily cleavable esters
such as benzyl or tert-butyl esters or the esters known
in peptide chemistry.
Notably, NH or 1H-pyrrolo[2,3-b]pyridine can be
protected if necessary with paratoluenesulphonyl,
phenylsulphonyl, acetyl, triisopropylsilyl, tert-
butyldimethylsilyl or trimethylsilylethoxymethyl.
Reactions a) to g) can be carried out, for example, as
stated hereunder.
a) The products described above can if desired undergo,
on any carboxy functions present, reactions of
esterification or amidation, which can be carried out
according to the usual methods known by a person
skilled in the art. The reactions of amidation can
notably be carried out in the presence of a coupling
agent such as a carbodiimide derivative. We may mention
as examples N-(3-dimethylaminopropyl), N1-
ethylcarbodiimide (EDCI), N,N' -diisopropyl-carbodiimide
(DIC) or N,N'-dicyclohexyl-carbodiimide.

b) Any alkylthio groups in the products described above
can, if desired, be transformed into the corresponding
sulphoxide or sulphone functions in the usual
conditions known by a person skilled in the art, for
example with peracids such as peracetic acid or
metachloroperbenzoic acid or alternatively with ozone,
oxone, sodium periodate in a solvent such as methylene
chloride or dioxan at room temperature.
Production of the sulphoxide function can be promoted
with an equimolar mixture of the product containing an
alkylthio group and of the reagent such as notably a
peracid.
Production of the sulphone function can be promoted
with a mixture of the product containing an alkylthio
group with an excess of the reagent such as notably a
peracid.
c) Any free or esterified carboxy functions in the
products described above can, if desired, be reduced to
an alcohol function by the methods known to a person
skilled in the art: any esterified carboxy functions
can, if desired, be reduced to an alcohol function by
the methods known by a person skilled in the art and
notably with lithium and aluminium hydride in a solvent
such as tetrahydrofuran or alternatively dioxan or
ethyl ether.
Any free carboxy functions in the products described
above can, if desired, be reduced to an alcohol
function notably with boron hydride.
d) Any alkoxy functions such as notably methoxy in the
products described above can, if desired, be
transformed to hydroxyl functions in the usual

conditions known by a person skilled in the art, for
example with boron tribromide in a solvent such as
methylene chloride, with pyridine hydrobromide or
hydrochloride or alternatively with hydrobromic or
hydrochloric acid in water or trifluoroacetic acid
under reflux.
It is to be understood that the reactions described
above can be carried out as stated or alternatively, if
applicable, according to other usual methods known by a
person skilled in the art.
e) The elimination of protecting groups, for example
those stated above, can be carried out in the usual
conditions known to a person skilled in the art,
notably by acid hydrolysis carried out with an acid
such as hydrochloric, benzenesulphonic or para-
toluenesulphonic, formic or trifluoroacetic acid or
alternatively by catalytic hydrogenation.
The phthalimido group can be eliminated with hydrazine.
A list of various protecting groups that can be used is
given for example in patent BF 2 499 995.
f) The products described above can, if desired,
undergo reactions of salification for example by an
inorganic or organic acid or by an inorganic or organic
base according to the usual methods known by a person
skilled in the art: said reaction of salification can
be performed for example in the presence of
hydrochloric acid or alternatively tartaric, citric or
methanesulphonic acid, in an alcohol such as ethanol or
methanol.
g) Any optically active forms of the products described
above can be prepared by resolution of racemates

according to the usual methods known by a person
skilled in the art.
The products of formula (I) as defined above as well as
their salts of addition with acids display interesting
pharmacological properties notably on account of their
kinase inhibiting properties as mentioned above.
It should be noted that as certain protein kinases play
a key role in the initiation, development and
completion of the events of the cell cycle, molecules
that inhibit said kinases are likely to limit
undesirable cellular proliferation such as that
observed in cancers, and can be used in the prevention,
control or treatment of neurodegenerative diseases such
as Alzheimer's disease or neuronal apoptosis.
The products of the present invention can notably be
used for the treatment of tumours.
The products of the invention can thus also enhance the
therapeutic effects of antitumour agents currently
used.
The products of formula (I) of the present invention
therefore possess quite particularly antiproliferative
properties.
These properties justify their application in therapeu-
tics and the invention relates in particular to the
products of formula (I) as defined above as medicinal
products, said products of formula (I) being in all
possible isomeric forms: racemates, enantiomers and
diastereoisomers, as well as salts of addition of said
products of formula (I) with pharmaceutically
acceptable inorganic and organic acids or inorganic and
organic bases.

The invention relates in particular to, as medicinal
products, the products described hereunder in the
examples and notably the products having the following
names:
- (5Z)-5-(1H-pyrrolo[2,3-b]pyridin-3-ylmethylene)-2-
thioxoimidazolidin-4-one
- (5Z)-5-[(5-chloro-1H-pyrrolo[2,3-b]pyridin-3-
yl)methylene]-2-thioxoimidazolidin-4-one
(5Z)-2-[(cyclopropylmethyl)amino]-5-(1H-
pyrrolo[2,3-b]pyridin-3-ylmethylene)-3,5-dihydro-4H-
imidazol-4-one
- (5Z)-5-[(5-chloro-1H-pyrrolo[2,3-b]pyridin-3-
yl)methylene]-2-[(cyclopropylmethyl)amino]-3,5-dihydro-
4H-imidazol-4-one
- (5Z)-5-[(6-chloro-1H-pyrrolo[2,3-b]pyridin-3-
yl)methylene]-2-[(cyclopropylmethyl)amino]-3,5-dihydro-
4H-imidazol-4-one
- (5Z)-2-[(cyclopropylmethyl)amino]-3-methyl-5-(1H-
pyrrolo[2,3-b]pyridin-3-ylmethylene)-3,5-dihydro-4H-
imidazol-4-one
- (5Z)-2-butyl-5-(1H-pyrrolo[2,3-b]pyridin-3-
ylmethylene)-3,5-dihydro-4H-imidazol-4-one
- (5Z)-2-azepan-1-yl-5-[(5-chloro-1H-pyrrolo[2,3-
b]pyridin-3-yl)methylidene]-3,5-dihydro-4H-imidazol-4-
one
- (5Z)-5-[(5-chloro-1H-pyrrolo[2,3-b]pyridin-3-
yl)methylidene]-2-piperidin-1-yl-3,5-dihydro-4H-
imidazol-4-one

- (5Z)-5-[(5-chloro-1H-pyrrolo[2,3-b]pyridin-3-
yl)methylidene]-2-[methyl(2-methylpropyl)amino]-3,5-
dihydro-4H-imidazol-4-one
- (5Z)-5-[(5-bromo-1H-pyrrolo[2,3-b]pyridin-3-
yl)methylidene]-2-[(eyelopropylmethyl)amino]-3,5-
dihydro-4H-imidazol-4-one
- (5Z)-2-[(cyclopropylmethyl)amino]-5-[(5-methoxy-
1H-pyrrolo[2,3-b]pyridin-3-yl)methylidene]-3,5-dihydro-
4H-imidazol-4-one
- (5Z)-2-[(cyclopropylmethyl)amino]-5-[(5-fluoro-1H-
pyrrolo[2,3-b]pyridin-3-yl)methylidene]-3,5-dihydro-4H-
imidazol-4-one
- (5Z)-2-azepan-1-yl-5-[(5-fluoro-1H-pyrrolo[2,3-
b]pyridin-3-yl)methylidene]-3,5-dihydro-4H-imidazol-4-
one
- 3-[(Z)-{2-[(cyclopropylmethyl)amino]-5-oxo-1,5-
dihydro-4H-imidazol-4-ylidene}methyl]-1H-pyrrolo[2,3-
b]pyridine-5-carbonitrile
- (5Z)-2-[(cyclopropylmethyl)amino]-5-[(5-phenyl-1H-
pyrrolo[2,3-b]pyridin-3-yl)methylidene]-3,5-dihydro-4H-
imidazol-4-one
- (5Z)-2-[(cyclopropylmethyl)amino]-5-{[5-
(trifluoromethyl)-1H-pyrrolo[2,3-b]pyridin-3-
yl]methylidene}-3,5-dihydro-4H-imidazol-4-one
- (5Z)-5-[(5-chloro-1H-pyrrolo[2,3-b]pyridin-3-
yl)methylidene]-2-(methylsulphanyl)-3,5-dihydro-4H-
imidazol-4-one

- (5Z)-2-butyl-5-[(5-chloro-1H-pyrrolo[2,3-
b]pyridin-3-yl)methylidene]-3,5-dihydro-4H-imidazol-4-
one
- (5Z)-2-(3-methylbutyl)-5-(1H-pyrrolo[2,3-
b]pyridin-3-ylmethylidene)-3,5-dihydro-4H-imidazol-4-
one
- (5Z)-2-cyclohexyl-5-(1H-pyrrolo [2,3-b]pyridin-3-
ylmethylidene)-3,5-dihydro-4H-imidazol-4-one
- (5Z)-5-[(5-chloro-1H-pyrrolo[2,3-b]pyridin-3-
yl)methylidene]-3-methyl-2-(tetrahydro-2H-pyran-4-yl)-
3,5-dihydro-4H-imidazol-4-one
- (5Z)-5-[(5-chloro-1H-pyrrolo[2,3-b]pyridin-3-
yl)methylidene]-3-methyl-2-(2-methylpropyl)-3,5-
dihydro-4H-imidazol-4-one
- (5Z)-2-(cyclopropylmethyl)-5-(5-chloro-1H-
pyrrolo[2,3-b]pyridin-3-ylmethylidene)-3,5-dihydro-4H-
imidazol-4-one
- (5Z)-2-(1-methylethyl)-5-(5-chloro-1H-pyrrolo[2,3-
b]pyridin-3-ylmethylidene)-3,5-dihydro-4H-imidazol-4-
one
- (5Z)-2-[benzyl(methyl)amino]-5-[(5-chloro-1H-
pyrrolo[2,3-b]pyridin-3-yl)methylidene]-3,5-dihydro-4H-
imidazol-4-one
- (5Z)-5-[(5-chloro-1H-pyrrolo[2,3-b]pyridin-3-
yl)methylidene]-2-[(2-methoxyethyl)(methyl)amino]-3,5-
dihydro-4H-imidazol-4-one
- (5Z)-2-azepan-1-yl-5-[(5-chloro-1H-pyrrolo[2,3-
b]pyridin-3-yl)methylidene]-3,5-dihydro-4H-imidazol-4-
one

- (5Z)-5-[(5-chloro-1H-pyrrolo[2,3-b]pyridin-3-
yl)methylidene]-2-piperidin-1-yl-3,5-dihydro-4H-
imidazol-4-one
- (5Z)-5-[(5-chloro-1H-pyrrolo[2,3-b]pyridin-3-
yl)methylidene]-2-[methyl(2-methylpropyl)amino]-3,5-
dihydro-4H-imidazol-4-one
- (5Z)-5-[(5-bromo-1H-pyrrolo[2,3-b]pyridin-3-
yl)methylidene]-2-[(cyclopropylmethyl)amino]-3,5-
dihydro-4H-imidazol-4-one
- (5Z)-2-[(cyclopropylmethyl)amino]-5-[(5-methoxy-
1H-pyrrolo[2,3-b]pyridin-3-yl)methylidene]-3,5-dihydro-
4H-imidazol-4-one
- (5Z)-2-[(cyclopropylmethyl)amino]-5-[(5-fluoro-1H-
pyrrolo[2,3-b]pyridin-3-yl)methylidene]-3,5-dihydro-4H-
imidazol-4-one
- (5Z)-2-azepan-1-yl-5-[(5-fluoro-1H-pyrrolo [2,3-
b]pyridin-3-yl)methylidene]-3,5-dihydro-4H-imidazol-4-
one
- 3-[(Z)-{2-[(cyclopropylmethyl)amino]-5-oxo-l,5-
dihydro-4H-imidazol-4-ylidene}methyl]-1H-pyrrolo [2,3-
b]pyridine-5-carbonitrile
- (5Z)-2-[(cyclopropylmethyl)amino]-5-[(5-phenyl-1H-
pyrrolo[2,3-b]pyridin-3-yl)methylidene]-3,5-dihydro-4H-
imidazol-4-one
- (5Z)-2-[(cyclopropylmethyl)amino]-5-{[5-
(trifluoromethyl)-1H-pyrrolo[2,3-b]pyridin-3-
yl]methylidene}-3,5-dihydro-4H-imidazol-4-one

- (5Z)-5-[(5-chloro-1H-pyrrolo[2,3-b]pyridin-3-
yl)methylidene]-2-(methylsulphanyl)-3,5-dihydro-4H-
imidazol-4-one
- (5Z)-2-butyl-5-[(5-chloro-1H-pyrrolo[2,3-
b]pyridin-3-yl)methylidene]-3,5-dihydro-4H-imidazol-4-
one
- (5Z)-2-(3-methylbutyl)-5-(1H-pyrrolo[2,3-
b]pyridin-3-ylmethylidene)-3,5-dihydro-4H-imidazol-4-
one
- (5Z)-2-cyclohexyl-5-(1H-pyrrolo[2,3-b]pyridin-3-
ylmethy1idene)-3,5-dihydro-4H-imidazol-4-one
- (5Z)-5-[(5-chloro-1H-pyrrolo[2,3-b]pyridin-3-
yl)methylidene]-3-methyl-2-(tetrahydro-2H-pyran-4-yl)-
3,5-dihydro-4H-imidazol-4-one
- (5Z)-5-[(5-chloro-1H-pyrrolo[2,3-b]pyridin-3-
yl)methylidene]-3-methyl-2-(2-methylpropyl)-3,5-
dihydro-4H-imidazol-4-one
- (5Z)-2-(cyclopropylmethyl)-5-(5-chloro-1H-
pyrrolo[2,3-b]pyridin-3-ylmethylidene)-3,5-dihydro-4H-
imidazol-4-one
- (5Z)-2-(1-methylethyl)-5-(5-chloro-1H-pyrrolo [2,3-
b]pyridin-3-ylmethylidene)-3,5-dihydro-4H-imidazol-4-
one
- (5Z)-2-[benzyl(methyl)amino]-5-[(5-chloro-1H-
pyrrolo[2,3-b]pyridin-3-yl)methylidene]-3,5-dihydro-4H-
imidazol-4-one
- (5Z)-5-[(5-chloro-1H-pyrrolo[2,3-b]pyridin-3-
yl)methylidene]-2-[(2-methoxyethyl)(methyl)amino]-3,5-
dihydro-4H-imidazol-4-one

said products of formula (I) being in all possible
isomeric forms: racemates, enantiomers and
diastereoisomers, as well as salts of addition of said
products of formula (I) with pharmaceutically
acceptable inorganic and organic acids or inorganic and
organic bases.
The invention also relates to pharmaceutical
compositions containing, as active principle, at least
one of the products of formula (I) as defined above or
a pharmaceutically acceptable salt of this product or a
prodrug of this product and, if applicable, a
pharmaceutically acceptable carrier.
The invention thus extends to pharmaceutical
compositions containing, as active principle, at least
one of the medicinal products as defined above.
Said pharmaceutical compositions of the present
invention can also, if applicable, contain active
principles of other antimitotic medicinal products such
as notably those based on taxol, cisplatin, DNA
intercalating agents and others.
These pharmaceutical compositions can be administered
orally, parenterally or locally by topical application
on the skin and the mucosae or by intravenous or
intramuscular injection.
These compositions can be solid or liquid and can be in
all the pharmaceutical forms commonly used in human
medicine, for example plain or coated tablets, pills,
lozenges, capsules, drops, granules, injectable
preparations, ointments, creams or gels; they are
prepared according to the usual methods. The active
principle can be incorporated in them with the

excipients usually employed in said pharmaceutical
compositions, such as talc, gum arabic, lactose,
starch, magnesium stearate, cocoa butter, aqueous or
non-aqueous vehicles, fats of animal or vegetable
origin, paraffinic derivatives, glycols, various
wetting agents, dispersants or emulsifiers,
preservatives.
The usual posology, which varies according to the
product used, the subject treated and the disorder in
question, can be for example from 0.05 to 5 g per day
in an adult, or preferably from 0.1 to 2 g per day.
The present invention also relates to the use of the
products of formula (I) as defined above or of
pharmaceutically acceptable salts of these products for
the preparation of a medicinal product intended to
inhibit the activity of a protein kinase.
The present invention also relates to the use of
products of formula (I) as defined above for the
preparation of a medicinal product intended for the
treatment or prevention of a disease characterized by
disturbance of the activity of a protein kinase.
Said medicinal product can notably be intended for the
treatment or prevention of a disease in a mammal.
The present invention also relates to the use as
defined above in which the protein kinase is a serine-
threonine protein kinase.
The present invention notably relates to the use
defined above in which the protein kinase is Cdc7.
The present invention also relates to the use defined
above in which the protein kinase is in a cell culture.

The present invention also relates to the use defined
above in which the protein kinase is in a mammal.
The present invention relates in particular to the use
of a product of formula (I) as defined above for the
preparation of a medicinal product intended for the
treatment or prevention of a disease selected from the
following group: disorders of proliferation of blood
vessels, fibrotic disorders, disorders of proliferation
of mesangial cells, metabolic disorders, allergies,
asthmas, thromboses, diseases of the nervous system,
retinopathy, psoriasis, rheumatoid arthritis, diabetes,
muscular degeneration and cancers.
The present invention relates more particularly to the
use of a product of formula (I) as defined above for
the preparation of a medicinal product intended for the
treatment or prevention of a disease selected from the
following group: disorders of proliferation of
mesangial cells, psoriasis, rheumatoid arthritis,
diabetes, muscular degeneration and cancers.
The present invention relates quite particularly to the
use of a product of formula (I) as defined above for
the preparation of a medicinal product intended for the
prevention or treatment of diseases associated with
uncontrolled cellular proliferation, for the
preparation of a medicinal product intended for the
treatment of diseases in oncology and notably intended
for the treatment of cancers.
Among these cancers, we are notably interested in the
treatment of solid tumours, and the treatment of
cancers that are resistant to cytotoxic agents.

Among these cancers, we are notably interested in the
treatment of cancers of the breast, stomach, ovaries,
colon, lung, brain, larynx, lymphatic system,
urogenital tract including bladder and prostate,
cancers of the bones and of the pancreas, and quite
particularly treatment of cancers of the breast, of the
colon or of the lung.
The present invention also relates to the use of the
products of formula (I) as defined above for the
preparation of medicinal products intended for the
chemotherapy of cancers.
Said medicinal products intended for the chemotherapy
of cancers can be used alone or in combination.
The products of the present application can notably be
administered alone or in combination with chemotherapy
or radiotherapy or alternatively in combination for
example with other therapeutic agents.
Said therapeutic agents can be antitumour agents that
are currently used.
As kinase inhibitors, we may mention butyrolactone,
flavopiridol and 2(2-hydroxyethyl-amino)-6-benzylamino-
9-methylpurine, called olomucin.
The present invention relates in particular to the
products of formula (I) as defined above as inhibitors
of Cdc7.
The present invention relates quite particularly to the
products of formula (I) which constitute Examples 1 to
99 of the present invention.

The 99 products that follow thus illustrate formula (I)
of the present invention more precisely, though without
limiting it.
In the preparation of the 99 products given as examples
in the present application, the following devices were
used:
1H-NMR spectrum at 400 MHz on BRUKER AVANCE DRX-400
spectrometer with chemical shifts (δ in ppm), in the
solvent dimethylsulphoxide-d6 (DMSO-d6) referenced at
2.50 ppm at a temperature of 303K.
1H-NMR spectrum at 3 00 MHz on BRUKER AVANCE DPX-3 00
spectrometer with chemical shifts (8 in ppm), in the
solvent dimethylsulphoxide-d6 (DMSO-d6) referenced at
2.50 ppm at a temperature of 303K.
LC-MS-DAD-ELSD analysis (MS: Waters ZQ; electrospray
mode +/-; mass-to-charge ratio m/z = 100-1200; LC:
Agilent HP 1100; LC column: X Bridge, 18C Waters 3.0 x
50 mm - 2.5 µm; LC furnace: 60°C; flow rate of mobile
phase: 1.1 ml/minute.
Eluents: A: Water + 0.1% formic acid, B: acetonitrile
with the following gradient:


DAD: wavelength considered λ = 210-400 nm
ELSD: Sedere SEDEX 85
SM-EI-CI-Direct injection-DCI analysis (EI = electron-
impact ionization, CI: chemical ionization, DCI:
desorption chemical ionization) (MS: Finnigan SSQ7000);
energy of the electrons: 70 eV; mass-to-charge ratio
m/z = 29-900; temperature of ionization source = 70°C;
reactant gas in CI: ammonia.
(1): Routine LC/MS analysis:
Mass detector: ZQ (Waters)
LC: column: X Bridge 18C Waters 3.0 x 50 mm - 2.5 urn;
flow = 1.1 ml/minute.
Eluents: A: Water + 0.1% formic acid, B: Acetonitrile
with the following gradient:



(2): Microwaves: BIOTAGE INITIATOR MICROWAVE
SYNTHESIZER
Maximum irradiation power 300 watts
It should be noted that in the examples described
below, the compounds 1H-pyrrolo[2,3-b]pyridine-3-
carbaldehydes (II) can be obtained from 1H-pyrrolo[2,3-
b]pyridine derivatives by reaction with 1,3,5,7-
tetraazatricyclo[3.3.1.1~3,7~]decane (A. Verbiscar J.
Med. Chem. 1972, 15, 149) or by the Vilsmeier reaction
(M-C Viaud et al. Heterocycles. 1999, 50, 1065).
Example 1
(5Z)-5-(1H-pyrrolo[2,3-b]pyridin-3-ylmethylene)-2-
thioxoimidazolidin-4-one
(5Z)-5-(1H-pyrrolo[2,3-b]pyridin-3-ylmethylene)-2-
thioxoimidazolidin-4-one can be prepared as follows:
Add 0.1 cm3 of piperidine and 400 mg of 2-
thioxoimidazolidin-4-one to a suspension of 500 mg of
1H-pyrrolo[2,3-b]pyridine-3-carbaldehyde in 10 cm3 of
ethanol. Reflux the reaction mixture - the solid goes
into solution. After heating for thirty minutes, a
precipitate forms. Turn off the heating and filter the
reaction mixture at a temperature close to 25°C. 561 mg
of (5Z)-5-(1H-pyrrolo[2,3-b]pyridin-3-ylmethylene)-2-
thioxoimidazolidin-4-one is obtained in the form of
orange powder with the following characteristics:
1H-NMR spectrum at 400 MHz: 6.80 (s: 1H); 7.20 (dd, J =

5 and 8 Hz: 1H) ; from 8.26 to 8.34 (m: 2H) ; 8.55 (s:
1H); from 11.7 to 12.2 (m spread out: 2H); from 12.3 to
12.6 (m spread out: 1H)
Mass spectrum: LC-MS-DAD-ELSD: 243 (-) = (M-H)(-);
245 ( + ) = (M+H) ( + )
Example 2
(5Z)-5-[(4-chloro-1H-pyrrolo[2,3-b]pyridin-3-
yl)methylene]-2-thioxoimidazolidin-4-one
a) (5Z)-5-[(4-chloro-1H-pyrrolo[2,3-b]pyridin-3-
yl)methylene]-2-thioxoimidazolidin-4-one can be
prepared as in Example 1 but from 182 mg of 4-chloro-
1H-pyrrolo[2,3-b]pyridine-3-carbaldehyde in 3 cm3 of
ethanol, 117 mg of 2-thioxoimidazolidin-4-one and
0.1 cm3 of piperidine. After refluxing for two hours,
250 mg of a mixture containing 60% of (5Z)-5-[(4-
chloro-1H-pyrrolo[2,3-b]pyridin-3-yl)methylene]-2-
thioxoimidazolidin-4-one is obtained in the form of
orange powder. The characteristics of the isomer (5Z)
are as follows:
1H-NMR spectrum at 400 MHz: 7.26 (s: 1H); 7.30 (m: 1H);
8.24 (d, J = 5 Hz: 1H) ; 8.58 (s: 1 H) ; from 11.5 to
13.0 (m very broad: 3H)
Mass spectrum: LC-MS-DAD-ELSD: 243(-)= (M-H)(-);
245 ( + ) = (M+H) ( + )
b) 4-chloro-1H-pyrrolo[2,3-b]pyridine-3-carbaldehyde
4-chloro-1H-pyrrolo[2,3-b]pyridine-3-carbaldehyde can
be prepared as follows:
Add 1.4 g of 1,3,5,7-
tetraazatricyclo[3.3.1.1~3,7~]decane to a suspension of
1 g of 4-chloro-1H-pyrrolo[2,3-b]pyridine in a mixture
of 7 cm3 of water and 3.5 cm3 of acid acetic. Reflux the
reaction mixture for one hour and thirty minutes. On
returning to a temperature close to 25°C, add water and
ice. There is formation of a precipitate in the form of

gum. Take up the latter in two times 2 0 cm3 of ethyl
acetate. Combine the organic phases, wash with water,
dry over magnesium sulphate, filter and concentrate to
dryness at reduced pressure. Take up the residue in
5 cm3 of ethyl acetate. The precipitate obtained is
filtered and dried at reduced pressure. 82 mg of 4-
chloro-1H-pyrrolo[2,3-b]pyridine-3-carbaldehyde is
obtained. The filtrate is concentrated to dryness at
reduced pressure and after flash chromatography on a
silica column [eluent: dichloromethane/methanol
(gradient from 99/1 to 90/10 by volume)], 160 mg of 4-
chloro-1H-pyrrolo[2,3-b]pyridine-3-carbaldehyde is
obtained with the following characteristics:
LC/MS (1): Retention time: 2.69 min
Mass spectrum (1): (ES+): m/z = 181 [MH+]
c) 4-chloro-1H-pyrrolo[2,3-b]pyridine can be prepared
as described in C. Thibault et al. : Org. Lett. 2003,
5(26) ; 5023.
Example 3
(5Z)-5-[(5-chloro-1H-pyrrolo[2,3-b]pyridin-3-
yl)methylene]-2-thioxoimidazolidin-4-one
a) (5Z)-5-[(5-chloro-1H-pyrrolo[2,3-b]pyridin-3-
yl)methylene]-2-thioxoimidazolidin-4-one can be
prepared as in Example 1 but from 400 mg of 5-chloro-
1H-pyrrolo [2,3-b]pyridine-3-carbaldehyde in 15 cm3 of
ethanol, 257 mg of 2-thioxoimidazolidin-4-one and
0.22 cm3 of piperidine. After refluxing for two hours,
320 mg of (5Z)-5-[(5-chloro-1H-pyrrolo[2,3-b]pyridin-3-
yl)methylene]-2-thioxoimidazolidin-4-one is obtained in
the form of orange powder with the following
characteristics:
1H-NMR spectrum at 400 MHz: 6.79 (s: 1H); 8.29 (d, J =
3 Hz: 1H) ; 8.54 (d, J = 3 Hz: 1H) ; 8.57 (s: 1H) ; from
7.00 to 8.30 (m very broad: 2H) ; from 11.4 to 12.5 (m

spread out: 1H)
Mass spectrum: LC-MS-DAD-ELSD: 279( + ) = (M+H)(+) (1
chlorine atom Cl present)
b) 5-chloro-1H-pyrrolo[2,3-b]pyridine-3-carbaldehyde
can be prepared as described in WO05/95400.
Example 4
(5Z)-5-[(6-chloro-1H-pyrrolo[2,3-b]pyridin-3-
yl)methylene]-2-thioxoimidazolidin-4-one
a) (5Z)-5-[(6-chloro-1H-pyrrolo[2,3-b]pyridin-3-
yl)methylene]-2-thioxoimidazolidin-4-one can be
prepared as in Example 1 but from 140 mg of 6-chloro-
1H-pyrrolo[2,3-b]pyridine-3-carbaldehyde in 5 cm3 of
ethanol, 90 mg of 2-thioxoimidazolidin-4-one and
0.08 cm3 of piperidine. After refluxing for two hours,
180 mg of (5Z)-5-[(6-chloro-1H-pyrrolo[2,3-b]pyridin-3-
yl)methylene]-2-thioxoimidazolidin-4-one is obtained in
the form of a powder with the following
characteristics:
1H-NMR spectrum at 400 MHz: 6.57 (s: 1H) ; 7.20 (d, J =
8 Hz: 1H) ; 8.40 (s: 1H) ; 8.49 (d, J = 8 Hz: 1H) ; from
9.40 to 10.5 (m spread out: 3H)
Mass spectrum: LC-MS-DAD-ELSD: 279(+)= (M+H)(+) (1
chlorine atom Cl present)
b) 6-chloro-1H-pyrrolo[2,3-b]pyridine-3-carbaldehyde
can be prepared as described in WO01/98299.
Example 5
(5Z)-5-[(2-methyl-1H-pyrrolo[2,3-b]pyridin-3-
yl)methylene]-2-thioxoimidazolidin-4-one
a) (5Z)-5-[(2-methyl-1H-pyrrolo[2,3-b]pyridin-3-
yl)methylene]-2-thioxoimidazolidin-4-one can be
prepared as in Example 1 but from 400 mg of 2-methyl-
lH-pyrrolo[2,3-b]pyridine-3-carbaldehyde in 15 cm3 of
ethanol, 290 mg of 2-thioxoimidazolidin-4-one and

0.25 cm3 of piperidine. After four hours of reflux,
463 mg of a mixture containing 65% of (5Z)-5-[(2-
methyl-1H-pyrrolo[2,3-b]pyridin-3-yl)methylene]-2-
thioxoimidazolidin-4-one is obtained in the form of
orange powder which will be used as such for the next
stage, and has the following characteristics:
1H-NMR spectrum at 400 MHz: 2.45 (s: 3H) ; 6.70 (s
broad: 1H) ; 7.12 (dd, J = 5 and 8 Hz: 1H) ; 7.88 (m:
1H) ; 8.20 (dd, J = 1.5 and 5 Hz: 1H) ; 11.55 (s broad:
1H); from 12.0 to 12.2 (m spread out: 2H)
Mass spectrum: LC-MS-DAD-ELSD: mixture containing the
expected structure 259 (+) = (M+H) (+)
b) 2-methyl-1H-pyrrolo[2,3-b]pyridine-3-carbaldehyde
2-methyl-1H-pyrrolo[2,3-b]pyridine-3-carbaldehyde can
be prepared as in Example 2 but from 83 5 mg of 2-
methyl-1H-pyrrolo[2,3-b]pyridine in a mixture of
5.3 cm3 of water and 1.6 cm3 of acid acetic and 1.32 g
of 1,3,5,7-tetraazatricyclo[3.3.1.1~3,7~]decane. 580 mg
of a mixture containing 6 0% of 2-methyl-1H-pyrrolo[2,3-
b] pyridine-3-carbaldehyde is obtained in the form of a
beige solid. The characteristics for 2-methyl-1H-
pyrrolo[2,3-b]pyridine-3-carbaldehyde are as follows:
LC/MS (1): Retention time: 1.7 min
Mass spectrum (1): (ES+): m/z = 161 [MH+]
c) 2-methyl-1H-pyrrolo[2,3-b]pyridine
2-methyl-1H-pyrrolo[2,3-b]pyridine can be prepared as
follows:
Add 8.2 g of potassium hydroxide to a solution of 2.2 g
of 2-methyl-1-[ (4-methylphenyl)sulphonyl]-1H-
pyrrolo [2,3-b]pyridine in 70 cm3 of methanol. Stir the
reaction mixture at a temperature close to 20°C for
five hours then reflux for five hours. Then concentrate
the medium (or mixture) to half at reduced pressure: a
precipitate forms. The solid is filtered and the

filtrate is concentrated to dryness at reduced
pressure, taken up in 100 cm3 of water, then once
100 cm3 and twice 50 cm3 of ethyl acetate. The combined
organic phases are dried over magnesium sulphate,
filtered and concentrated to dryness at reduced
pressure. After flash chromatography on a silica column
[eluent: heptane/ethyl acetate (gradient from 80/20 to
40/60 by volume)], 835 mg of 2-methyl-1H-pyrrolo[2,3-
b]pyridine is obtained in the form of a beige solid
with the following characteristics:
Rf TLC silica = 0.4 9 [eluent: heptane/ethyl acetate
(60/40 by volume)]
Mass spectrum: LC-MS-DAD-ELSD: 133(+) = (M+H)(+)
SM-EI: 132(+) = M(+)
d) 2-methyl-1-[(4-methylphenyl)sulphonyl]-1H-
pyrrolo[2,3-b]pyridine.
2-methyl-1-[(4-methylphenyl)sulphonyl]-1H-pyrrolo [2,3-
b]pyridine can be prepared as follows:
Cool a solution of 2 g of 1-[(4-
methylphenyl)sulphonyl]-1H-pyrrolo[2,3-b]pyridine in
20 cm3 of tetrahydrofuran to a temperature close to
-70°C using a dry ice/acetone bath. At this temperature
and under argon, add dropwise 9.2 cm3 of a 1.6M
solution of n-butyllithium in hexane. Stir the reaction
medium (or mixture) at this temperature for thirty
minutes then add 1.3 7 cm3 of methyl iodide. Stir the
mixture under argon at a temperature close to -70°C for
three hours. After heating the mixture to a temperature
close to 0°C, add 20 cm3 of water, then allow the
temperature to approach 20 °C and extract with three
times 50 cm3 of ethyl acetate. Wash the combined
organic phases with a saturated aqueous solution of
sodium chloride, dry over magnesium sulphate, filter
and concentrate to dryness at reduced pressure. 2.2 g

of 2-methyl-1-[(4-methylphenyl)sulphonyl]-1H-
pyrrolo[2,3-b]pyridine is obtained in the form of a
beige powder with the following characteristics:
XH-NMR spectrum at 400 MHz: 2.30 (s: 3H); 2.32 (s: 3H);
2.69 (s broad: 3H) ; 6.59 (s broad: 1H) ; 7.15 (s broad:
1H); 7.17 (dd, J = 5 and 8 Hz: 1H); 7.26 (d broad, J =
8 Hz: 1H) ; 7.90 (dd, J = 2 and 8 Hz: 1H) ; 7.97 (d, J =
8 Hz: 1H); 8.08 (dd, J = 2 and 5 Hz: 1H)
Mass spectrum: LC-MS-DAD-ELSD: 301(+) = (M+H)(+); 299(-
) = (M-H) (-)
e) 1-[(4-methylphenyl)sulphonyl]-1H-pyrrolo [2,3-
b]pyridine
1-[(4-methylphenyl)sulphonyl]-1H-pyrrolo[2,3-b]pyridine
can be prepared as follows:
Introduce, i.e. add, 100 mg of N,N,N-tributylbutane-1-
ammonium hydrogen sulphate and 8.75 g of 4-
methylbenzenesulphonyl chloride to a solution of 4.72 g
of lH-pyrrolo[2,3-b]pyridine in 110 cm3 of toluene. To
the mixture cooled to 0°C, add a solution of 20.8 g of
sodium hydroxide in 110 cm3 of water. Stir the reaction
mixture under argon at a temperature close to 20°C for
four hours then add 100 cm3 of water. Extract the
resultant mixture with 200 cm3 then 100 cm3 of ethyl
acetate. Wash the combined organic phases with a
saturated aqueous solution of sodium chloride, dry over
magnesium sulphate, filter and concentrate to dryness
at reduced pressure. 10.9 g of 1-[(4-
methylphenyl)sulphonyl]-1H-pyrrolo[2,3-b]pyridine is
obtained in the form of a white powder with the
following characteristics:
Rf TLC silica = 0.34 [eluent: heptane/ethyl acetate
(70/30 by volume)]
Mass spectrum: LC-MS-DAD-ELSD: 273 (+) = (M+H) (+) 295(+)
= (M+Na)(+)

Example 6
(5Z)-3-methyl-5-(1H-pyrrolo[2,3-b]pyridin-3-
ylmethylene)-2-thioxoimidazolidin-4-one
(5Z)-3-methyl-5-(1H-pyrrolo[2,3-b]pyridin-3-
ylmethylene)-2-thioxoimidazolidin-4-one can be prepared
as in Example 1 but from 225 mg of 1H-pyrrolo[2,3 -
b]pyridine-3-carbaldehyde in 10 cm3 of ethanol, 200 mg
of 3-methyl-2-thioxoimidazolidin-4-one and 0.061 cm3 of
piperidine. After refluxing for five hours, 271 mg of a
mixture containing 85% of the isomer (5Z)-3-methyl-5-
(1H-pyrrolo[2,3-b]pyridin-3-ylmethylene)-2-
thioxoimidazolidin-4-one and 15% of the isomer (5E) is
obtained in the form of an orange-yellow powder. The
characteristics of the isomer 5Z are as follows:
1H-NMR spectrum at 400 MHz: 3.21 (s: 3H); 6.96 (s: 1H);
7.20 (dd, J = 5 and 8 Hz: 1H) ; from 8.27 to 8.37 (m:
2H); 8.59 (d, J = 3 Hz: 1H); 12.05 (s broad: 1H); 12.5
(s broad: 1H)
Mass spectrum: LC-MS-DAD-ELSD: 257(-) = (M-H)(-);
259(+) = (M+H)(+)
Example 7
(5Z)-2-[(cyclopropylmethyl)amino]-5-(1H-pyrrolo[2,3-
b]pyridin-3-ylmethylene)-3,5-dihydro-4H-imidazol-4-one
(5Z)-2-[(cyclopropylmethyl)amino]-5-(1H-pyrrolo[2,3-
b]pyridin-3-ylmethylene)-3,5-dihydro-4H-imidazol-4-one
can be prepared as follows:
Put 100 mg of (5Z)-5-(1H-pyrrolo[2,3-b]pyridin-3-
ylmethylene)-2-thioxoimidazolidin-4-one, 1 cm3 of
ethanol and 290 mg of 1-cyclopropylmethanamine in a
microwave oven reactor. Close the reactor hermetically
and irradiate the mixture with microwave radiation for
twenty minutes at a temperature of 140°C, then thirty
minutes at a temperature of 150°C. On returning to a
temperature close to 20°C, the precipitate that has

formed is filtered, washed with ethanol and dried at
reduced pressure. 40 mg of (5Z)-2-
[(cyclopropylmethyl)amino]-5-(1H-pyrrolo[2,3-b]pyridin-
3-ylmethylene)-3,5-dihydro-4H-imidazol-4-one is
obtained in the form of a yellow powder with the
following characteristics:
1H-NMR spectrum at 400 MHz: 0.3 0 (m: 2H) ; 0.4 8 (m: 2H) ;
1.13 (m: 1H) ; 3.23 (t broad, J = 6.5 Hz: 2H) ; 6.61 (s
broad: 1H) ; 7.11 (d, J = 5 Hz: 1H) ; 7.24 (m: 1H) ; from
8.15 to 8.30 (m: 2H) ; 8.55 (d broad, J = 7 Hz: 1H) ;
from 9.70 to 10.7 (m spread out: 1H) ; 11.6 (m spread
out: 1H)
Mass spectrum: SM-EI: 281(+) = M(+)
Example 8
(5Z)-5-[(4-chloro-1H-pyrrolo[2,3-b]pyridin-3-
yl)methylene]-2-[(cyclopropylmethyl)amino]-3,5-dihydro-
4H-imidazol-4-one
(5Z)-5-[(4-chloro-1H-pyrrolo[2,3-b]pyridin-3-
yl)methylene]-2-[(cyclopropylmethyl)amino]-3,5-dihydro-
4H-imidazol-4-one can be prepared as in Example 7 but
from 190 mg of (5Z)-5-[(4-chloro-1H-pyrrolo[2,3-
b]pyridin-3-yl)methylene]-2-thioxoimidazolidin-4-one,
4 cm3 of ethanol and 485 mg of 1-
cyclopropylmethanamine. After one hour at a temperature
of 145°C under microwave irradiation and thirty minutes
at a temperature of 150°C, 100 mg of (5Z)-5-[(4-chloro-
1H-pyrrolo[2,3-b]pyridin-3-yl)methylene]-2-
[(cyclopropylmethyl)amino]-3,5-dihydro-4H-imidazol-4-
one is obtained in the form of orange powder with the
following characteristics:
1H-NMR spectrum at 400 MHz: 0.28 (m: 2H) ; 0.48 (m: 2H) ;
1.12 (m: 1H) ; 3.22 (m partially masked: 2H) ; 7.10 (s
broad: 1H) ; 7.22 (d, J = 5 Hz : 1H) ; 7.37 (m: 1H) ; 8.18
(d, J = 5 Hz: 1H) ; 8.58 (s broad: 1H) ; from 10.25 to

10.8 (m spread out: 1H) ; from 12.0 to 12.6 (m spread
out: 1H)
Mass spectrum: LC-MS-DAD-ELSD: 314(-)= (M-H)(-);
316(+)= (M+H)(+) (1 chlorine atom Cl present)
Example 9
(5Z)-5-[(5-chloro-1H-pyrrolo[2,3-b]pyridin-3-
yl)methylene]-2-[(cyclopropylmethyl)amino]-3,5-dihydro-
4H-imidazol-4-one
(5Z)-5-[(5-chloro-1H-pyrrolo[2,3-b]pyridin-3-
yl)methylene]-2-[(cyclopropylmethyl)amino]-3,5-dihydro-
4H-imidazol-4-one can be prepared as in Example 7 but
from 200 mg of (5Z)-5-[(5-chloro-1H-pyrrolo [2,3-
b]pyridin-3-yl)methylene]-2-thioxoimidazolidin-4-one,
4 cm3 of ethanol and 511 mg of 1-
cyclopropylmethanamine, after thirty minutes at a
temperature of 14 5°C under microwave irradiation. The
medium (or mixture) is then concentrated, and purified
by flash chromatography on a silica column [eluent:
dichloromethane/methanol (gradient from 95/5 to 70/30
by volume)]. 20 mg of (5Z)-5-[(5-chloro-1H-pyrrolo [2,3-
b]pyridin-3-yl)methylene]-2-[(cyclopropylmethyl)amino]-
3,5-dihydro-4H-imidazol-4-one is obtained in the form
of a pale yellow powder with the following
characteristics:
1H-NMR spectrum at 400 MHz: 0.30 (m: 2H) ; 0.48 (m: 2H) ;
1.16 (m: 1H) ; 3.24 (m partially masked: 2H) ; 6.58 (s:
1H) ; 7.25 (m: 1H) ; 8.16 (s broad: 1H); 8.22 (s broad:
1H) ; 9.15 (s broad: 1H) ; from 10.25 to 10.7 (m spread
out: 1H); from 11.9 to 12.4 (m spread out: 1H)
Mass spectrum: LC-MS-DAD-ELSD: 314(-) = (M-H)(-);
316(+)= (M+H)(+) (1 chlorine atom Cl present)
Example 10
(5Z)-5-[(6-chloro-1H-pyrrolo[2,3-b]pyridin-3-

yl)methylene]-2-[(eyelopropylmethy1)amino]-3,5-dihydro-
4H-imidazol-4-one
(5Z)-5-[(6-chloro-1H-pyrrolo[2,3-b]pyridin-3-
yl)methylene]-2-[(cyclopropylmethyl)amino]-3,5-dihydro-
4H-imidazol-4-one can be prepared as in Example 7, but
from 150 mg of (5Z)-5-[(6-chloro-1H-pyrrolo [2,3-
b]pyridin-3-yl)methylene]-2-thioxoimidazolidin-4-one,
3.75 cm3 of ethanol and 383 mg of 1-
cyclopropylmethanamine. After fifteen minutes at a
temperature of 140°C, then thirty minutes at a
temperature of 150°C under microwave irradiation, 55 mg
of (5Z)-5-[(6-chloro-1H-pyrrolo[2,3-b]pyridin-3-
yl)methylene]-2-[(cyclopropylmethyl)amino]-3,5-dihydro-
4H-imidazol-4-one is obtained in the form of a pale
yellow powder with the following characteristics:
1H-NMR spectrum at 400 MHz: 0.30 (m: 2H); 0.48 (m: 2H);
1.12 (m: 1H) ; 3.24 (t, J = 6. 5 Hz: 2H) ; 6.57 (s: 1H) ;
7.16 (d, J = 8 Hz: 1H) ; from 7.20 to 7.35 (m spread
out: 1H) ; 8.18 (m: 1H) ; 8.73 (m: 1H) ; from 9.80 to
10.70 (m very broad: 1H) ; from 11.5 to 12.3 (m very
broad: 1H)
Mass spectrum: LC-MS-DAD-ELSD: 316(+)= (M+H)(+) (1
chlorine atom Cl present)
Example 11
(5Z)-2-[(cyclopropylmethyl)amino]-5-[(2-methyl-1H-
pyrrolo[2,3-b]pyridin-3-yl)methylene]-3,5-dihydro-4H-
imidazol-4-one
(5Z)-2-[(cyclopropylmethyl)amino]-5-[(2-methyl-1H-
pyrrolo[2,3-b]pyridin-3-yl)methylene]-3,5-dihydro-4H-
imidazol-4-one can be prepared as in Example 7, but
from 200 mg of a mixture containing 65% of (5Z)-5-[(2-
methyl-1H-pyrrolo[2,3-b]pyridin-3-yl)methylene]-2-
thioxoimidazolidin-4-one, 2 cm3 of ethanol and 551 mg
of 1-cyclopropylmethanamine, after fifteen minutes at a

temperature of 140°C and fifteen minutes at 145°C under
microwave irradiation. The mixture obtained is then
purified by flash chromatography on a silica column
[eluent: dichloromethane/methanol (gradient from 98/2
to 90/10 by volume)]. 35 mg of (5Z)-2-
[(cyclopropylmethyl)amino]-5-[(2-methyl-1H-pyrrolo[2,3-
b]pyridin-3-yl)methylene]-3,5-dihydro-4H-imidazol-4-one
is obtained in the form of a pale yellow powder with
the following characteristics:
1H-NMR spectrum at 400 MHz: 0.29 (m: 2H); 0.47 (m: 2H) ;
1.13 (m: 1H); 2.50 (s partially masked: 3H); 3.23 (t, J
= 6.5 Hz: 2H) ; 6.48 (s: 1H) ; 7.00 (m: 1H) ; 7.08 (m:
1H) ; 8.10 (d broad, J = 4 Hz: 1H) ; 9.42 (d, J = 8 Hz:
1H) ; from 10.3 to 10.6 (m spread out: 1H) ; 11.8 (s
broad: 1H)
Mass spectrum: LC-MS-DAD-ELSD: 294 (-) = (M-H)(-);
296( + ) = (M+H) ( + )
Example 12
(5Z)-2-[(cyclopropylmethyl)amino]-3-methyl-5-(1H-
pyrrolo[2,3-b]pyridin-3-ylmethylene)-3,5-dihydro-4H-
imidazol-4-one
(5Z)-2-[(cyclopropylmethyl)amino]-3-methyl-5-(1H-
pyrrolo[2,3-b]pyridin-3-ylmethylene)-3,5-dihydro-4H-
imidazol-4-one can be prepared as in Example 7, but
from 100 mg of (5Z)-3-methyl-5-(1H-pyrrolo[2,3-
b]pyridin-3-ylmethylene)-2-thioxoimidazolidin-4-one,
4 cm3 of ethanol and 2 75 mg of 1-
cyclopropylmethanamine. After fifteen minutes at a
temperature of 140°C, forty minutes at 150°C and forty-
five minutes at 160°C under microwave irradiation,
39 mg of (5Z)-2-[(cyclopropylmethyl)amino]-3-methyl-5-
(1H-pyrrolo[2,3-b]pyridin-3-ylmethylene)-3,5-dihydro-
4H-imidazol-4-one is obtained in the form of a yellow
powder with the following characteristics:

1H-NMR spectrum at 400 MHz: 0.35 (m: 2H); 0.51 (m: 2H);
1.22 (m: 1H) ; 3.07 (s: 3H) ; 3.33 (t, J = 6.5 Hz: 2H) ;
6.74 (s: 1H); 7.11 (dd, J = 5 and 8 Hz: 1H); 7.55 (t, J
= 6.5 Hz: 1H) ; from 8.20 to 8.27 (m: 2H) ; 8.61 (d, J =
8 Hz: 1H); 11.9 (s broad: 1H)
Mass spectrum: LC-MS-DAD-ELSD: 294(-) = (M-H)(-);
296 (+) = (M+H)(+)
Example 13
(5Z)-2-butyl-5-[(1H-pyrrolo[2,3-b]pyridin-3-
yl)methylidene]-3,5-dihydro-4H-imidazol-4-one
Preparation A of Example 13
(5Z)-2-butyl-5-(1H-pyrrolo[2,3-b]pyridin-3-
ylmethylene)-3,5-dihydro-4H-imidazol-4-one
(5Z)-2-butyl-5-(1H-pyrrolo[2,3-b]pyridin-3-
ylmethylene)-3,5-dihydro-4H-imidazol-4-one can be
prepared as in Example 1, but adding 0.15 cm3 of
piperidine and 324 mg of 2-butyl-3,5-dihydro-4H-
imidazol-4-one (prepared for example according to J.
Org. Chem. 1999, 64, 8084-8089) to 198 mg of 1H-
pyrrolo[2,3-b]pyridine-3-carbaldehyde in 15 cm3 of
ethanol. Reflux the reaction mixture for three hours
and concentrate the mixture under vacuum. On adding a
little ethanol, a yellow solid forms, which is
filtered, washed with 3 cm3 of dichloromethane, and
dried under vacuum to obtain 65 mg. This solid is
combined with the 66 mg of solid obtained in an
identical reaction on 245 mg of lH-pyrrolo[2,3-
b]pyridine-3-carbaldehyde. The solids are taken up in
20 cm3 of water and extracted with two times 3 0 cm3 of
ethyl acetate. The organic phases are dried over
magnesium sulphate, filtered and concentrated at
reduced pressure, obtaining 88 mg of (5Z)-2-butyl-5-
(1H-pyrrolo[2,3-b]pyridin-3-ylmethylene)-3,5-dihydro-

4H-imidazol-4-one in the form of a yellow powder with
the following characteristics:
1H-NMR spectrum at 400 MHz: 0.95 (t, J = 7.5 Hz, 3H);
1.40 (m, 2H) ; 1.71 (m, 2H) ; 2.54 (t, J = 7.5 Hz, 2H);
7.16 (s, 1H) ; 7.18 (dd, J = 5.0 and 8.0 Hz, 1H) ; 8.28
(dd, J = 1.5 and 5.0 Hz, 1H) ; 8.34 (s, 1H) ; 8.92 (d
broad, J = 8.0 Hz, 1H) ; 11.1 (m spread out, 1H) ; 12.4
(m spread out, 1H)
Preparation B of Example 13
(5Z)-2-butyl-5-[(1H-pyrrolo[2,3-b]pyridin-3-
yl)methylidene]-3,5-dihydro-4H-imidazol-4-one
a) (5Z)-2-butyl-5-[(1H-pyrrolo[2,3-b]pyridin-3-
yl)methylidene]-3,5-dihydro-4H-imidazol-4-one can be
prepared as follows:
A mixture of 0.32 g of raw 2-butyl-3,5-dihydro-4H-
imidazol-4-one, 0.2 g of 1H-pyrrolo[2,3-b]pyridine-3-
carbaldehyde, 0.14 cm3 of piperidine and 15 cm3 of
ethanol is refluxed for four hours. The yellow solid is
filtered, washed with a little methylene chloride then
dried under vacuum to obtain 65 mg of (5Z)-2-butyl-5-
[(1H-pyrrolo[2,3-b]pyridin-3-yl)methylidene]-3,5-
dihydro-4H-imidazol-4-one in the form of a yellow
powder with the following characteristics:
1H-NMR spectrum at 400 MHz: 0.95 (t, J = 7.5 Hz, 3H) ;
1.40 (m, 2H) ; 1.71 (m, 2H) ; 2.54 (t, J = 7.5 Hz, 2H) ;
7.17 (s, 1H) ; 7.20 (dd, J = 5.0 and 8.0 Hz, 1H) ; 8.29
(dd, J = 1.5 and 5.0 Hz, 1H) ; 8.34 (s, 1H) ; 8.92 (d
broad, J = 8.0 Hz, 1H) ; 11.1 (m spread out, 1H) ; 12.4
(m spread out, 1H).
HPLC-MS-DAD-ELSD: 269(+) = (M+H)(+); 267(-) = (M-H)(-).

b) 2-butyl-3,5-dihydro-4H-imidazol-4-one can be
prepared as follows:
A solution of 63 mg of sodium hydroxide in 2 cm3 of
ethanol is added slowly to 0.2 g of methyl glycinate
hydrochloride at -10°C. After 5 min, a solution of
0.18 g of methyl pentanimidoate in 5 cm3 of toluene is
added and the mixture is stirred at room temperature
for 20 min. The pH is then adjusted to pH 7 with a
solution of 1M HCl. The mixture obtained is
concentrated under vacuum at room tempex-ature. The
residue is taken up in dichloromethane and the
insoluble solid is filtered. Evaporation of the
filtrate gives 0.32 g of 2-butyl-3,5-dihydro-4H-
imidazol-4-one.
c) Methyl pentanimidoate can be prepared as follows:
Slowly add a 6M solution of potassium hydroxide
(10.6 cm3) to a solution of 0.3 g of methyl
pentanimidoate hydrochloride in 5 cm3 of ether at
10 oC. Stir the mixture for 10 min then extract with
ether (2x20 cm3) . Wash the organic phases with water
(20 cm3) , dry over magnesium sulphate and concentrate
under vacuum to obtain 179 mg of methyl pentanimidoate.
d) Methyl pentanimidoate hydrochloride can be prepared
as follows:
Gaseous hydrogen chloride is bubbled for 30 min in a
solution of 5 cm3 of butane carbonitrile in a mixture
of methanol (2.1 cm3) and ether (5 cm3), cooled to -
10°C. Allow the temperature to rise to 0°C and put the
reaction mixture in a refrigerator overnight. On
concentrating the solution, 6.9 g of methyl

pentanimidoate hydrochloride is obtained in the form of
a white solid.
UPLC-MS-DAD-ELSD analysis (MS = Quattro Premier XE
Waters; electrospray +/-; mass-to-charge ratio m/z =
100-1100; UPLC Waters; Acquity UPLC BeH C18 1.7 p
column.
3mm, 50mm; furnace UPLC = 70°C, flow =0.7 ml/minute.
Eluents: A = water + 0.1% formic acid, B = acetonitrile
+ 0.1% formic acid with the gradient:

DAD wavelength considered A = 210-400 nm
ELSD: Sedere SEDEX 85; spraying temperature = 35 °C;
spraying pressure = 3.7 bar
Example 14
(5Z)-5-[(5-bromo-1H-pyrrolo[2,3-b]pyridin-3-
yl)methylene]-2-thioxoimidazolidin-4-one
a) (5Z)-5-[(5-bromo-1H-pyrrolo[2,3-b]pyridin-3-
yl)methylene]-2-thioxoimidazolidin-4-one can be
prepared as in Example 1 but from 655 mg of 5-bromo-1H-
pyrrolo[2,3-b]pyridine-3-carbaldehyde in 6 cm3 of
ethanol, 340 mg of 2-thioxoimidazolidin-4-one and
0.28 cm3 of piperidine. After refluxing for two hours,
700 mg of (5Z)-5-[(5-bromo-1H-pyrrolo[2,3-b]pyridin-3-

yl)methylene]-2-thioxoimidazolidin-4-one is obtained in
the form of orange powder with the following
characteristics:
1H-NMR spectrum at 400 MHz: 6.82 (s, 1H); 8.37 (d, J =
2.0 Hz, 1H) ; 8.57 (s, 1H) ; 8.64 (d, J = 2.0 Hz, 1H) ;
from 11.6 to 12.3 (m very broad, 2H) ; 12.6 (m spread
out, 1H).
Mass spectrum: HPLC-MS-DAD-ELSD: 323(+) = (M+H) (+) ;
321 (-) = (M-H) (-) (1 bromine atom Br present) .
b) 5-bromo-1H-pyrrolo[2,3-b]pyridine-3-carbaldehyde can
be prepared as follows:
Add, at 0°C, 0.93 g of 5-bromo-1H-pyrrolo[2,3-
b]pyridine to a suspension of 3.35 g of aluminium
chloride in 5 0 cm3 of dichloromethane. Stir the
reaction mixture for 15 minutes, then add dropwise
1.4 cm3 of dichloro(methoxy)methane. Stir the reaction
mixture for three hours at 0°C, then dilute at 0°C by
adding 5 cm3 of methanol. Pour the mixture obtained
into a mixture of 100 cm3 of ice water, then adjust to
basic pH by adding 5M sodium hydroxide. Separate the
phases, and wash the dichloromethane phase with water,
then dry over sodium sulphate. Extract the aqueous
phase again with two times 100 cm3 of ethyl acetate.
Combine the two extracts, wash with water, dry over
sodium sulphate and combine with the dichloromethane
organic phase above. After concentration under vacuum,
0.61 g of 5-bromo-1H-pyrrolo[2,3-b]pyridine-3-
carbaldehyde is obtained in the form of ochre powder
with the following characteristics:
1H-NMR spectrum at 400 MHz: 8.44 (d, J = 2Hz, 1H) ; 8.51
(m, 2H); 9.92 (s, 1H).

LC-MS (1): retention time: 3.08 min, LC-MS-DAD-ELSD:
223(-) = (M-H)(-); 225(+) = (M+H)(+) (1 Br present).
c) 5-bromo-1H-pyrrolo[2,3-b]pyridine can be prepared as
described in D. Mazeas et al.: Heterocycles. 1999,
50 (2) ; 1065-1080.
Example 15
(5Z)-5-[(5-methoxy-1H-pyrrolo[2,3-b]pyridin-3-
yl)methylene]-2-thioxoimidazolidin-4-one
a) (5Z)-5-[(5-methoxy-1H-pyrrolo[2,3-b]pyridin-3-
yl)methylene]-2-thioxoimidazolidin-4-one can be
prepared as in Example 1 but from 160 mg of 5-methoxy-
1H-pyrrolo [2,3-b]pyridine-3-carbaldehyde in 4 cm3 of
ethanol, 110 mg of 2-thioxoimidazolidin-4-one and
0.09 cm3 of piperidine. After refluxing for 2.5 hours,
220 mg of (5Z)-5-[(5-methoxy-1H-pyrrolo[2,3-b]pyridin-
3-yl)methylene]-2-thioxoimidazolidin-4-one is obtained
in the form of orange powder with the following
characteristics:
1H-NMR spectrum at 400 MHz: 3.87 (s, 3H) ; 6.86 (s, 1H) ;
7.95 (d, J = 2.5 Hz, 1H) ; 8.03 (d, J = 2.. 5 Hz, 1H) ;
8.50 (s, 1H); 11.84 (s broad, 1H); 12.30 (s broad, 1H).
LC-MS (1): retention time 2.60 min, LC-MS-DAD-ELSD:
273 (-) = (M-H) (-) ; 275 (+) = (M+H)(+).
b) 5-methoxy-1H-pyrrolo[2,3-b]pyridine-3-carbaldehyde
can be prepared as described in D. Mazeas et al. :
Heterocycles. 1999, 50(2); 1065-1080.
Example 16
(5Z)-5-[(5-phenyl-1H-pyrrolo[2,3-b]pyridin-3-
yl)methylene]-2-thioxoimidazolidin-4-one

a) (5Z) -5-[(5-phenyl-1H-pyrrolo[2,3-b]pyridin-3-
yl)raethylidene]-2-thioxoimidazolidin-4-one can be
prepared as in Example 1 but from 13 5 mg of 5-phenyl-
lH-pyrrolo[2,3-b]pyridine-3-carbaldehyde in 3 cm3 of
ethanol, 70 mg of 2-thioxoimidazolidin-4-one and
0.06 cm3 of piperidine. After refluxing for 2.5 hours,
180 mg of (5Z) -5-[(5-phenyl-1H-pyrrolo[2,3-b]pyridin-3-
yl)methylene]-2-thioxoimidazolidin-4-one is obtained in
the form of orange powder with the following physical
characteristics:
Melting point: 265-270°C
1H-NMR spectrum at 400 MHz: 6.84 (s, 1H); 7.38 (t, J =
7.5 Hz, 1H); 7.49 (t, J = 7.5 Hz, 2H); 7.82 (d, J = 7.5
Hz, 2H) ; 8.52 (s, 1H) ; 8.61 (d, J = 2.0 Hz, 1H) ; 8.68
(d, J = 2.0 Hz, 1H); from 10.0 to 11.5 (m very broad,
3H) .
LC-MS (1): retention time 3.49 min; LC-MS-DAD-ELSD:
319(-) = (M-H) (-); 321(+) = (M+H) (+).
b) 5-phenyl-1H-pyrrolo[2,3-b]pyridine-3-carbaldehyde
can be prepared as follows:
Put 500 mg of 5-bromo-1H-pyrrolo[2,3-b]pyridine-3-
carbaldehyde, 13 cm3 of dioxan, 3.7 cm3 of water, 2.9 g
of caesium carbonate, 340 mg of phenylboronic acid, and
160 mg of 1,1'-bis(diphenylphosphino)ferrocene-
dichloropalladium(II) in a microwave tube. Irradiate
the reaction mixture with microwaves for thirty minutes
at 140°C. After cooling, pour the reaction mixture into
50 cm3 of water. Extract the mixture obtained with two
times 50 cm3 of ethyl acetate. Dry the combined organic
phases over sodium sulphate, then reduce to dryness
under vacuum. The residue obtained is purified by flash

chromatography on a silica column with a
dichloromethane/ethyl acetate eluent
(dichloromethane/ethyl acetate gradient of 90/10 to
50/50 by volume) to give 377 mg of 5-phenyl-1H-
pyrrolo[2,3-b]pyridine-3-carbaldehyde with the
following physical characteristics:
1H-H-NMR spectrum at 400 MHz: 7.41 (tt, J = 1 and 7.4 Hz,
1H); 7.52 (t, J = 7.4 Hz, 2H); 7.73(d, J = 7.4 Hz, 2H);
8.51(S, 1H); 8.59 (d, J = 2.3 Hz, 1H); 8.66 (d, J = 2.3
Hz); 9.97 (s, 1H); 12.77 (sb, 1H).
LC-MS (1): retention time 3.38 min; LC-MS-DAD-ELSD: 221
(-) = (M-H)(-); 225(+) = (M+H)(+).
Example 17
(5Z)-5-[(5-methyl-1H-pyrrolo[2,3-b]pyridin-3-
yl)methylidene]-2-thioxoimidazolidin-4-one
a) (5Z)-5-[(5-methyl-1H-pyrrolo[2,3-b]pyridin-3-
yl)methylidene]-2-thioxoimidazolidin-4-one can be
prepared as in Example 1 but from 500 mg of raw 5-
methyl-1H-pyrrolo[2,3-b]pyridine-3-carbaldehyde
titrated at 65%, 362 mg of 2-thioxoimidazolidin-4-one
and 106 mg of piperidine in 15 cm3 of ethanol. Heat the
mixture under ethanol reflux for four hours under
argon, then cool to 0°C on an ice bath for ten minutes.
Filter the suspension and concentrate the filtrate at
reduced pressure to obtain 685 mg of (5Z)-5-[(5-methyl-
1H-pyrrolo[2,3-b]pyridin-3-yl)methylidene]-2-
thioxoimidazolidin-4-one in the form of a yellow powder
with the following characteristics:
LC-MS: retention time: 2.83 min, 259(+)= (M+H)(+).

1H-NMR spectrum at 400 Hz.: 2.42 (s: 3H) ; 6.73 (sb:
1H);'8.10 (d, J = 2Hz: 1H); 8.15 (d, J = 2Hz: 1H); 8.49
(s: 1H) ; 11.5-12.1 (massive: 2H) ; 12.26 (se, 1H) .
b) 5-methyl-1H-pyrrolo[2,3-b]pyridine-3-carbaldehyde
can be prepared as follows:
Add 1.6 g of 1,3,5,7-
tetraazatricyclo[3.3.1.1-3,7~]decane to a suspension of
1 g of 5-methyl-1H-pyrrolo[2,3-b]pyridine in a mixture
of 10 cm3 of water and 5 cm3 of acid acetic. Reflux the
mixture under argon for four hours and thirty minutes,
then add 3 0 cm3 of water to the hot mixture and leave
to return to room temperature while stirring overnight.
Then extract the mixture with three times 50 cm3 of
ethyl acetate. Then combine the organic phases and wash
with 3 times 50 cm3 of water, dry over magnesium
sulphate and concentrate to dryness at reduced pressure
to obtain 610 mg of a mixture containing 65% (by NMR)
of 5-methyl-1H-pyrrolo[2,3-b]pyridine-3-carbaldehyde in
the form of a yellow powder, for which the
characteristics of the main product are as follows:
LC-MS: retention time 3.79 min, 161(+)= (M+H)(+).
1H-NMR spectrum at 400 Hz: 2.41 (s: 3H); 8.21 (d, J =
2Hz: 1H); 8.22 (d, J = 2Hz: 1H) ; 8.40 (s: 1H) ; 9.90 (s:
1H); 12.5-12.7 (se: 1H).
c) 5-methyl-1H-pyrrolo[2,3-b]pyridine can be prepared
as follows:
Add 7 g of potassium tert-butanolate to a suspension of
7.5 g of 5-methyl-3-[(trimethylsilyl)ethynyl]pyridin-2-
amine in 17 0 cm3 of NMP. Reflux the reaction mixture
for six hours thirty minutes under argon then allow to
return to room temperature overnight. Then pour the

reaction mixture slowly into 74 0 cm3 of a saturated
aqueous solution of ammonium chloride and filter the
insoluble matter on celite. Extract the filtrate with
three times 500 cm3 of ethyl acetate then wash the
combined organic phases with water, dry over magnesium
sulphate and concentrate to dryness at reduced
pressure. Then take up the residue in ethyl acetate.
The solution obtained is washed with water, then dried
over magnesium sulphate and concentrated to dryness at
reduced pressure to obtain 2.6 g of 5-methyl-1H-
pyrrolo [2,3-b]pyridine in the form of a brown solid
with the following characteristics:
LC-MS: retention time 0.85 min, 133(+)= (M+H)(+).
1H-NMR spectrum at 400 Hz: 2.38(s: 3H) ; 6.35(dd, J =
1.5, 3Hz: 1H) ; 7.38 (dd, J = 2.5, 3Hz: 1H) , 7.73 (db, J
= 1Hz: 1H); 8.2 (d, J = 2Hz: 1H); 11.42 (se, 1H).
d) 5-methyl-3-[(trimethylsilyl)ethynyl]pyridin-2-amine
can be prepared as follows:
A suspension of 1 g of 2-amino-3-bromo-5-methylpyridine
with 204 mg of CuI and 250 mg of lithium chloride in
3 0 cm3 of dimethylformamide is placed under argon and
stirred. 3.7 cm3 of triethylamine, 195 mg of [1,1'-
bis(diphenylphosphino)ferrocene]dichloropalladium(II)
and 800 mg of trimethylsilylacetylene are then added
successively. The mixture is heated at 4 8°C for twenty-
two hours. The reaction mixture is then concentrated to
dryness at reduced pressure, and the residue is taken
up in a mixture of 30 cm3 of ethyl acetate and 30 cm3 of
water. Brown insoluble matter is filtered on celite.
The phases are separated and the organic phase is
washed with two times 30 cm3 of water. The aqueous
phase is extracted with 30 cm3 of ethyl acetate, then

all the organic phases are combined, dried over
magnesium sulphate and concentrated to dryness at
reduced pressure. The residue is purified by flash
chromatography on a silica column [eluent: n-
hexane/ethyl acetate (gradient from 5/95 to 40/60 by
volume)], to give 353 mg of 5-methyl-3-
t(trimethylsilyl)ethynyl]pyridin-2-amine in the form of
a beige solid with the following characteristics:
LC-MS: retention time 3.28 min, 205(+)= (M+H)(+).
1H-NMR spectrum at 400 Hz: 0.20 (m: 9H) ; 2.10 (s: 3H);
5.90 (se: 2H); 7.40 (s: 1H); 7.85 (se: 1H).
Example 18
(5Z)-2-thioxo-5-{[5-(trifluoromethyl)-1H-pyrrolo[2,3-
b]pyridin-3-yl]methylidene}imidazolidin-4-one
a) (5Z)-2-thioxo-5-{[5-(trifluoromethyl)-1H-
pyrrolo[2,3-b]pyridin-3-yl]methylidene}imidazolidin-4-
one can be prepared as in Example 1, but from 174 mg of
5-trifluoromethyl-1H-pyrrolo[2,3-b]pyridine-3-
carbaldehyde in 6 cm3 of ethanol, 94 mg of 2-
thioxoimidazolidin-4-one and 0.03 cm3 of piperidine.
After refluxing for two hours and thirty minutes,
148 mg of a mixture containing 80% of (5Z)-2-thioxo-5-
{[5-(trifluoromethyl)-1H-pyrrolo[2,3-b]pyridin-3-
yl]methylidene}imidazolidin-4-one is obtained in the
form of orange powder, for which the characteristics of
the main compound are as follows:
LC-MS: retention time 3.28 min; 313(+)= (M+H)(+).
1H-NMR spectrum at 400 MHz: 6.98 (s, 1H) ; 8.52 (d, J =
2 Hz, 1H) ; 8.66 (d, J = 2Hz, 1H) ; 9.07 (s, 1H) ; 12.00
(s broad, 1H).

b) 5-trifluoromethyl-1H-pyrrolo[2,3-b]pyridine-3-
carbaldehyde can be prepared as follows:
Add 92 6 mg of 1,3,5,7-
tetraazatricyclo[3.3.1.1~3,7~]decane to a mixture of
820 mg of 5-trifluoromethyl-1H-pyrrolo[2,3-b]pyridine
in 6 cm3 of water and 3 cm3 of acid acetic. Reflux the
reaction mixture for two hours and thirty minutes. Then
add 6 cm3 of water to the hot mixture. On returning to
a temperature close to 2 5°C, the mixture is extracted
with ethyl acetate (40 cm3). The organic phase is
washed with a saturated solution of sodium chloride,
dried over magnesium sulphate and concentrated under
vacuum. The residue is purified by chromatography on
silica (elution with a 20-100% gradient of ethyl
acetate in heptane) to obtain 123 mg of 5-
trifluoromethyl-1H-pyrrolo[2,3-b]pyridine-3-
carbaldehyde in the form of a beige powder with the
following characteristics:
LC-MS: retention time 3.14 min; 215(+)= (M+H)(+).
1H-NMR spectrum at 400 MHz: 8.67 (d, J = 2.4 Hz, 1H) ;
8.75 (d, J = 2.4 Hz, 1H) ; 8.69 (s, 1H) ; 10.00 (s, 1H) ;
13.17 (s broad, 1H).
c) 5-trifluoromethyl-1H-pyrrolo[2,3-b]pyridine can be
prepared as follows:
A solution of 3.4 g of 5-trifluoromethyl-3-
[(trimethylsilyl)ethynyl]pyridin-2-amine and 2.96 g of
potassium tert-butylate in 55 cm3 of N-
methylpyrrolidinone is heated at 90°C for three hours.
The mixture is cooled to room temperature then poured
slowly into 250 cm3 of water saturated with ammonium
chloride. The mixture is diluted with ethyl acetate,

filtered and the phases are separated into their
isomers and the aqueous phase is extracted with ethyl
acetate (2x100 cm3) . The organic phases are combined,
dried over magnesium sulphate and concentrated under
vacuum. The residue is taken up slowly in water and the
resultant suspension is filtered. The solid is dried
under vacuum to obtain 1.58 g of 5-trifluoromethyl-1H-
pyrrolo [2 , 3-b]pyridine in the form of a brown powder
with the following characteristics:
LC-MS: retention time 3.55 min; 187(+)= (M+H)(+).
1H-NMR spectrum at 400 MHz: 6.63 (dd, J = 1.7 and 3.5
Hz, 1H) ; 7.69 (dd, J = 2.2 and 3 5 Hz, 1H) ; 8.38 (d, J
= 1.7 Hz, 1H) ; 8.55 (d, J = 2.2 Hz, 1H) ; 12.16 (s
broad, 1H).
d) 5-trifluoromethyl-3-
[(trimethylsilyl)ethynyl]pyridin-2-amine can be
prepared as follows:
A mixture of 6.68 g of 2-amino-3-iodo-5-
trifluoromethyl-pyridine, 11.7 g of lithium, chloride,
0.88 g of copper iodide, 11.7 g of triethylamine,
0.85 g of [1,1'-bis(diphenylphosphino)ferrocene]-
dichloropallaidium(II) and 3.4 g of
trimethylsilylacetylene in 160 cm3 of dimethylformamide
is heated at 48°C for twenty-three hours. The mixture
is cooled to room temperature then concentrated under
vacuum. The residue is taken up in 200 cm3 of water and
200 cm3 of ethyl acetate. The insoluble matter is
filtered and the organic phase is washed with water,
dried over magnesium sulphate and concentrated under
vacuum. The residue is purified by chromatography on a
silica column [eluent: ethyl acetate/heptane (gradient
from 0/100 to 30/70 by volume)], to obtain 3.42 g of 5-

trifluoromethyl-3-[(trimethylsilyl)ethynyl]pyridin-2-
amine in the form of beige powder with the following
characteristics:
LC-MS: retention time: 4.94 min; LC-MS-DAD-ELSD:
259(+) = (M+H) (+) .
e) 2-amino~3-iodo-5-trifluoromethyl-pyridine can be
prepared as follows:
A mixture of 4.0 g of 2-amino-5-trifluoromethyl-
pyridine and 6.2 g of N-iodo succinimide in 110 cm3 of
acid acetic is heated at 70°C for three hours, then
cooled to room temperature and concentrated under
vacuum. The residue is taken up slowly in 60 cm3 of
water saturated with sodium bicarbonate, then 60 cm3 of
water. The solid which precipitates is filtered and
then dried under vacuum to obtain 6.68 g of 2-amino-3-
iodo-5-trifluoromethyl-pyridine in the form of a beige
solid with the following characteristics:
LC-MS: retention time: 3.72 min; LC-MS-DAD-ELSD: 289(+)
= (M+H)(+).
Example 19
(5Z)-5-[(5-fluoro-1H-pyrrolo[2,3-b]pyridin-3-
yl)methylidene]-2-thioxoimidazolidin-4-one
a) (5Z)-5-[(5-fluoro-1H-pyrrolo[2,3-b]pyridin-3-
yl)methylidene]-2-thioxoimidazolidin-4-one can be
prepared as in Example 1, but from 265 mg of 5-fluoro-
lH-pyrrolo[2,3-b]pyridine-3-carbaldehyde, 13 cm3 of
ethanol, 190 mg of 2-thioxoimidazolidin-4-one and
0.16 cm3 of piperidine. After refluxing for 2.5 hours,
327 mg of (5Z) -5-[(5-fluoro-1H-pyrrolo[2,3-b]pyridin-3-
yl)methylene]-2-thioxoimidazolidin-4-one is obtained in

the form of orange powder with the following physical
characteristics:
1H-NMR spectrum at 400 MHz: 6.81 (s, 1H) ; 8.30 (m, 2H) ;
8.60 (s, 1H); 11.93 (s broad, 1H); 12.57 (s broad, 1H).
LC-MS (1): retention time 2.91 min; LC-MS-DAD-ELSD: 261
(-) = (M-H)(-); 263 (+) = (M+H)(+).
b) 5-fluoro-1H-pyrrolo[2,3-b]pyridine-3-carbaldehyde
can be prepared as in Example 2 but from 54 5 mg of 5-
fluoro-1H-pyrrolo[2,3-b]pyridine, in a mixture of
3.4 cm3 of water and 1.6 cm3 of acid acetic, and 54 5 mg
of 1,3,5,7-tetraazatricyclo[3.3.1.1~3,7~]-decane.
265 mg of 5-fluoro-1H-pyrrolo[2,3-b]pyridine-3-
carbaldehyde is obtained in the form of a beige solid
with the following physical characteristics:
1H-NMR spectrum at 400 MHz: 8.15 (dd, J = 3 and 9 Hz,
1H);.8.36 (dd, 1.8 and 3 Hz, 1H) ; 8.53 (s, 1H) ; 9.90
(s, 1H) ; 12.79 (s broad, 1H) .
LC-MS (1): retention time: 2.59 min; LC-MS-DAD-ELSD 163
(-) = (M-H)(-); 165(+) = (M+H)(+).
c) 5-fluoro-1H-pyrrolo[2,3-b]pyridine can be prepared
as described in WO2005/103050.
Example 20
3-[(Z)-(5-oxo-2-thioxoimidazolidin-4-ylidene)methyl]-
1H-pyrrolo[2,3-b]pyridine-5-carbonitrile
a) 3-[(Z)-(5-oxo-2-thioxoimidazolidin-4-
ylidene)methyl]-1H-pyrrolo[2,3-b]pyridine-5-
carbonitrile can be prepared as in Example 1, but from
173 mg of 3-formyl-1H-pyrrolo[2,3]pyridine-5-
carbonitrile, in 7.4 cm3 of ethanol, 122 mg of 2-
thioxoimidazolidin-4-one, and 0.05 cm3 of piperidine.

After refluxing for three hours, 200 mg of 3-[5-oxo-2-
thioxo-imidazolidin-(4Z)-ylidenemethyl]-1H-
pyrrolo{[2,3-b]pyridine-5-carbonitrile is obtained in
the form of orange powder, with the following physical
characteristics:
LC-MS (1): retention time 2.86; LC-MS-DAD-ELSD: 270(+)
= (M+H)(+).
1H-NMR spectrum at 400 MHz: 6.84 (s, 1H) ; 8.66 (s, 1H) ;
8.69 (s, 1H); 8.99 (s, 1H); 12.17 (s broad, 1H).
b) 3-formyl-1H-pyrrolo[2,3]pyridine-5-carbonitrile can
be prepared as in Example 2, but from 860 mg of 1H-
pyrrolo[2.3]pyridine-5-carbonitrile in a mixture of
15 cm3 of water and 4.8 cm3 of acid acetic, and 1.2 6 g
of tetraazatricyclo[3.3.1.1~3,7~]decane. 275 mg of 3-
formyl-1H-pyrrolo[2,3]pyridine-5-carbonitrile is
obtained in the form of beige powder with the following
physical characteristics:
1H-NMR spectrum at 400 MHz: 8.66 (s, 1H) ; 8.77 (m, 2H) ;
9.98 (s, 1H).
LC-MS (1): retention time 2.39 min; LC-MS-DAD-ELSD:
170 (-) = (M-H)(-); 172 (+) = (M+H) (+) .
c) lH-pyrrolo[2,3-b]pyridine-5-carbonitrile can be
prepared as described in WO2004/078756.
Example 21
(5Z)-5-[(5-phenylamino-1H-pyrrolo[2,3-b]pyridin-3-
yl)methylene]-2-thioxoimidazolidin-4-one
a) (5Z)-5-[(5-phenylamino-1H-pyrrolo[2,3-b]pyridin-3-
yl)methylene]-2-thioxoimidazolidin-4-one can be
prepared as in Example 1, but from 63 mg of 5-
phenylamino-1H-pyrrolo [2,3-b]pyridine-3-carbaldehyde in

2 cm3 of ethanol, 32 mg of 2-thioxoimidazolidin-4-one
and 0.03 cmJ of piperidine. After refluxing for 2.5
hours, 70 mg of (5Z)-5-[(5-phenylamino-1H-pyrrolo[2,3-
b]pyridin-3-yl)methylene]-2-thioxoimidazolidin-4-one is
obtained in. the form of orange powder with the
following physical characteristics:
1H-NMR spectrum at 400 MHz: 6.71 (s, 1H) ; 6.76 (t, J =
7.6 Hz, 1H); 7.01 (d, J = 7.6 Hz, 2H); 7.21 (t, J = 7.6
Hz, 2H) ; 7.98 (d, J = 2.4 Hz, 1H) ; 8.06 (s, 1H) ; 8.12
(d, J = 2.4 Hz, 1H); 8.47 (s, 1H); 11.70 (s broad, 3H);
12.29 (s broad, 1H).
LC-MS (1): retention time 3.55 min; LC-MS-DAD-ELSD 334
(-) = (M-H)(-); 336 (+) = (M+H)(+).
b) 5-phenylamino-1H-pyrrolo[2,3-b]pyridine-3-
carbaldehyde can be prepared as in Example 14 but from
1.6 g of aluminium chloride in suspension in 25 cm3 of
dichloromethane, 0.5 g of N-phenyl-1H-pyrrolo [2,3-
b]pyridin-5-amine, and 1.1 cm3 of
dichloro(methoxy)methane. After one hour thirty minutes
of reaction and hydrolysis of the reaction mixture,
180 mg of a raw product is obtained, which is then
purified by flash chromatography on a silica column
with dichloromethane/ethyl acetate eluent (gradient
from 80/20 to 50/50 by volume). 70 mg of 5-phenyl-1H-
pyrrolo[2,3-b]pyridine-3-carbaldehyde is obtained in
the form of ochre powder with the following physical
characteristics:
1H-NMR spectrum at 400 MHz: 6.80 (t, J = 7.4 Hz, 1H);
7.02 (d, J = 7.4 Hz, 2H) ; 7.24 (t, J = 7.4 Hz, 2H) ;
8.17 (m, 3H) ; 8.36 (s, 1H) ; 9.86 (s, 1H) , 12.56 (s
broad, 1H).

LC-MS-DAD-ELSD: 236 (-)=(M-H)(-); 237 (+) = (M+H)(+).
c) 5-phenylamino-1H-pyrrolo[2,3-b]pyridine can be
prepared as in Example 5, but by reacting 1.34 g of 1-
[(4-methylphenyl)sulphonyl]-N-phenyl-1H-pyrrolo[2,3-
b]pyridin-5-amine in 3 0 cm3 of methanol, and 4.15 g of
potassium hydroxide for three hours at room
temperature. After treatment of the reaction mixture,
0.63 g of 5-phenylamino-1H-pyrrolo[2,3-b]pyridine is
obtained in the form of beige powder with the following
physical characteristics:
1H-NMR spectrum at 400 MHz: 6.3 5 (d, J = 3.5Hz, 1H) ;
6.69 (t, J = 7.5Hz, 1H); 6.89 (d, J = 7.5 Hz, 2H); 7.15
(t, J = 7.5 Hz, 2H) ; 7.40 (s broad, 1H) ; 7.70 (d, J =
2.6 Hz, 1H) 7.83 (s, 1H) ; 8.04 (d, J = 2.6 Hz, 1H),
11.45 (s broad, 1H).
LC/MS retention time 3.22 min; LC-MS-DAD-ELSD208(-) =
(M-H)(-); 210(+) =(M+H)(+).
d) 1-[(4-methylphenyl)sulphonyl]-N-phenyl-1H-
pyrrolo[2,3-b]pyridin-5-amine can be prepared as
follows:
Put 750 mg of 5-bromo-1-[(4-methylphenyl)sulphonyl]-1H-
pyrrolo [2,3-b]pyridine in 19 cm3 of toluene, 54 mg of
9,9-dimethyl-4,5-bis(diphenylphosphino)xanthene, 970 mg
of caesium carbonate, 280 mg of aniline and 40 mg of
tri(dibenzylideneacetone)dipalladium(0) in a microwave
oven reactor. Irradiate the reactor in a microwave oven
for forty-five minutes at 150°C. After cooling, filter
the reaction mixture, then reduce to dryness under
vacuum in a rotary evaporator. Combine the brown
residue with another two residues obtained similarly,
then purify by flash chromatography on a silica column

with dichloromethane eluent to give 1.34 g of 1-[ (4-
methy1phenyl)sulphonyl]-N-phenyl-1H-pyrrolo[2,3-
b]pyridin-5-amine in the form of a beige powder with
the following physical characteristics:
LC/MS retention time 4.58 min; LC-MS-DAD-ELSD; 364 (+) =
(M+H)(+).
e) 5-bromo-1-[(4-methylphenyl)sulphonyl]-1H-
pyrrolo[2,3-b]pyridine can be prepared as follows:
Add 1.63 g of 5-bromo-1H-pyrrolo [2, 3-b]pyridine, 30 mg
of tetrabutyl ammonium hydrogen sulphate, 1.81 g of
tosyl chloride and 4.3 g of sodium hydroxide pellets in
solution in 40 cm3 of water to 41 cm3 of toluene. After
stirring for four hours at room temperature, pour the
reaction mixture into 50 cm3 of water. Extract the
mixture obtained with 50 cm3 of ethyl acetate. The
organic phase is decanted, dried over magnesium
sulphate, filtered and then evaporated to dryness under
vacuum in a rotary evaporator. 2.4 g of 5-bromo-1-[(4-
methylphenyl)sulphonyl]-1H-pyrrolo[2,3-b]pyridine is
obtained in the form of white powder with the following
physical characteristics:
LC/MS retention time 4.70 min; LC-MS-DAD-ELSD 353(+) =
(M+H)(+) (1 bromine atom Br present).
Example 22
(5Z)-5-[(5-morpholin-4-yl-1H-pyrrolo[2,3-b]pyridin-3-
yl)methylidene]-2-thioxoimidazolidin-4-one
a) (5Z)-5-[(5-morpholin-4-yl-1H-pyrrolo[2,3-b]pyridin-
3-yl)methylidene]-2-thioxoimidazolidin-4-one can be
prepared as in Example 1, but from 14 0 mg of 5-
morpholin-4-yl-1H-pyrrolo[2,3-b]pyridine-3 -carbaldehyde
in 4.5 cm3 of ethanol, 75 mg of 2-thioxoimidazolidin-4-

one and 0.03 cm3 of piperidine. After refluxing for 2.5
hours, 160 mg of(5Z)-5-[(5-morpholin-4-yl-1H-
pyrrolo[2,3-b]pyridin-3-yl)methylene]-2-
thioxoimidazolidin-4-one is obtained in the form of
orange powder with the following physical
characteristics:
LC-MS(1): retention time 2.68 min; LC-MS-DAD-ELSD
328(-) =(M-H)(-); 230(+) =(M+H)(+).
1H-NMR spectrum at 400 MHz: 3.16(m, 4H) ; 3.78(m, 4H) ;
6.88(s, 1H) ; 7.86(d, J = 2.3 Hz, 1H) ; 8.15(d, J =
2.3 Hz, 1H) ; 8.48(s, 1H) ; 11.78(s broad, 1H) ; 12.09(s broad, 1H); 12.23(s broad, 1H).
b) 5-morpholin-4-yl-1H-pyrrolo[2,3-b]pyridine-3-
carbaldehyde can be prepared as in Example 14 but from
2 g of aluminium chloride in suspension in 50 cm3 of
dichloromethane, 0.59 g of 5-morpholin-4-yl-1H-
pyrrolo[2,3-b]pyridine and 0.8 cm3 of
dichloro(methoxy)methane. After one hour thirty minutes
of reaction and hydrolysis of the reaction mixture,
140 mg of 5-morpholin-4-yl-1H-pyrrolo[2,3-b]pyridine-3-
carbaldehyde is obtained in the form of a beige powder
with the following physical characteristics:
LC/MS retention time 2.3 5 min; LC-MS-DAD-ELSD 230(-) =
(M-H)(-) ; 232(+)=(M+H)(+).
1H-NMR spectrum at 400 MHz: 3.12(m, 4H); 3.78(m, 4H);
7.88(d, J = 2.8 Hz, 1H) ; 8.22(d, J = 2.8 Hz, 1H) ;
8.34(s, 1H); 9.87(s, 1H); 12.48(s broad, 1H).
c) 5-morpholin-4-yl-1H-pyrrolo[2,3-b]pyridine can be
prepared as in Example 5, but from 1.18 g of l-[(4-
methylphenyl)sulphonyl]-5-morpholin-4-yl-1H-
pyrrolo [2,3-b]pyridine in 33 cm3 of methanol and 3.7 g

of potassium, hydroxide pellets. After treatment of the
reaction mixture, 0.59 g of 5-morpholin-4-yl-1H-
pyrrolo[2,3-b]pyridine is obtained in the form of beige
powder with the following physical characteristics:
1H-NMR spectrum at 400 MHz: 3.05(m, 4H); 3.77(m, 4H) ;
6.32(dd, J = 2 and 3.2 Hz, 1H) ; 7.36(dd, J = 2 and
3.2 Hz, 1H); 7.48(d, J = 2.7 Hz, 1H); 8.06(d, J = 2.7
Hz, 1H); 11.35(s broad, 1H).
LC/MS retention time 1.27 min; LC-MS-DAD-ELSD:204(+) =(M+H)(+).
d) 1-[(4-methylphenyl)sulphonyl]-5-morpholin-4-yl-1H-
pyrrolo[2,3-b]pyridine can be prepared as in Example 21
but from 62 cm3 of toluene, 2.6 g of 5-bromo-1-[(4-
methylphenyl)sulphonyl]-1H-pyrrolo[2,3-b]pyridine,
3.35 g of caesium carbonate, 170 mg of 9,9-dimethyl-
4,5-bis(diphenylphosphino)xanthene, 0.9 g of morpholine
and 130 mg of tri(dibenzylideneacetone)dipalladium(0).
The reactor is irradiated in a microwave oven, for one
hour at 150°C. After cooling, the reaction mixture is
filtered, and evaporated to dryness under vacuum in a
rotary evaporator. The brown residue obtained is
purified by flash chromatography on a silica column
with dichloromethane/ethyl acetate eluent(gradient
from 100 to 90/10 by volume) to give 1.18 g of l-[(4-
methylphenyl)sulphonyl]-5-morpholin-4-yl-1H-
pyrrolo[2,3-b]pyridine in the form of beige powder with
the following physical characteristics:
LC/MS retention time 3.96 min; LC-MS-DAD-ELSD: 358(+) =(M+H)(+) .
Example 23

(5Z)-5-[(5-benzyl-1H-pyrrolo[2,3-b]pyridin-3-
yl)methylidene]-2-thioxoimidazolidin-4-one
a) (5Z)-5-[(5-benzyl-1H-pyrrolo[2,3-b]pyridin-3-
yl)methylidene]-2-thioxoimidazolidin-4-one can be
prepared as in Example 1, but from 55 mg of 5-benzyl-4-
yl-1H-pyrrolo[2,3-b]pyridine-3-carbaldehyde in 1.8 cm3
of ethanol, 27 mg of 2-thioxoimidazolidin-4-one and
0.023 cm3 of piperidine. After refluxing for 2.5 hours,
60 mg of(5Z)-5-[(5- morpholin-4-yl-1H-pyrrolo[2,3-
b]pyridin-3-yl)methylene]-2-thioxoimidazolidin-4-one is
obtained in the form of orange powder with the
following physical characteristics:
1H-NMR spectrum at 400 MHz: 4.06(s, 2H) ; 6.69(s, 1H) ;
7.17(t, J = 6.9 Hz, 1H) ; 7.29(m, 4H) ; 8.17(d, J =
1.8 Hz, 1H) ; 8.23(d, J = 1.8 Hz, 1H) ; 8.49(s, 1H) ;
11.35(s broad, 1H); 12.26(s broad, 1H).
LC-MS(1): retention time 3.66 min; LC-MS-DAD-ELSD:
333(-) =(M-H)(-) ; 335(+) =(M+H)(+) .
b) 5-benzyl-1H-pyrrolo[2,3-b]pyridine-3-carbaldehyde
can be prepared as in Example 16, but from 260 mg of 5-
bromo-1-[(4-methylphenyl)sulphonyl]-1H-pyrrolo[2,3-
b]pyridine 3-carbaldehyde, in 4.7 cm3 of
tetrahydrofuran and 2.5 cm3 of water, 680 mg of caesium
carbonate and 55 mg of 1,1'-
bis(diphenylphosphino)ferrocenedichloropalladium(II).
After forty-five minutes of irradiation at 150°C, pour
the reaction mixture into a water/ethyl acetate
mixture. Dry the organic phase over sodium sulphate and
extract the aqueous phase again with 2 times 5 0 cm3 of
a dichloromethane/methanol 90/10 mixture by volume. Dry
the dichloromethane phase over sodium sulphate then
combine with the preceding organic phases before

concentrating under vacuum in a rotary evaporator. The
brown residue is purified by flash chromatography on a
silica column with a dichloromethane/ethyl acetate
eluent(gradient dichloromethane/ethyl acetate from
90/10 to 50/50 by volume) to give 55 mg of 5-benzyl-1H-
pyrrolo[2,3-b]pyridine-3-carbaldehyde in the form of
beige powder with the following physical
characteristics:
1H-NMR spectrum at 400 MHz: 4.09(s, 2H); 7.19(m, 1H);
7.28(m, 4H) ; 8.22(d, J = 2.1 Hz, 1H) ; 8.31(d, J =
2.1 Hz, 1H) ; 8.42(s, 1H) ; 9.87 (s, 1H) ; 12.61(s
broad, 1H).
LC-MS(1): retention time 3.61 min; LC-MS-DAD-ELSD: 235
(-) =(M-H)(-); 237(+) =(M+H)(+).
c) 5-bromo-1-[(4-methylphenyl)sulphonyl]-1H-
pyrrolo[2,3-b]pyridine-3-carbaldehyde can be prepared
as follows:
Add, at 0°C, 1 g of 5-bromo-1H-pyrrolo [2,3-b]pyridine-
3-carbaldehyde, then 0.27 g of sodium hydride to 10 cm3
of anhydrous tetrahydrofuran. Stir the reaction mixture
for fifteen minutes at 0°C before adding 1.87 g of
tosyl chloride in solution in 1.7 cm3 of
tetrahydrofuran. Continue stirring the reaction mixture
for two hours, allowing it to return to room
temperature. Pour the reaction mixture into 100 cm3 of
iced water. Extract the mixture obtained with two times
100 cm3 of ethyl acetate. Dry the organic phases over
magnesium sulphate and then evaporate to dryness under
vacuum in a rotary evaporator. 1.32 g of 5-bromo-1-[(4-
methylphenyl)sulphonyl]-1H-pyrrolo[2,3-b]pyridine-3-
carbaldehyde is obtained in the form of a beige powder
with the following physical characteristics:

LC-MS-DAD-ELSD: 381(+) =(M+H)(+)(1 bromine atom Br
present).
Example 24
(5E/Z)-3-phenyl-5-(1H-pyrrolo[2,3-b]pyridin-3-
ylmethylidene)-2-thioxoimidazolidin-4-one
(5E/Z)-3-phenyl-5-(1H-pyrrolo[2,3-b]pyridin-3-
ylmethylidene)-2-thioxoimidazolidin-4-one can be
prepared as in Example 1, but from 75 mg of 1H-
pyrrolo[2,3-b]pyridine-3-carbaldehyde in 3.5 cm3 of
ethanol, 98 mg of 2-thioxoimidazolidin-3-phenyl-4-one
(SIGMA) and 0.02 cm3 of piperidine. After refluxing for
five hours, 151 mg of a 50/50 mixture of(5Z/E) -3-
phenyl-5-(1H-pyrrolo[2,3-b]pyridin-3-ylmethylidene)-2-
thioxoimidazolidin-4-one is obtained in the form of a
yellow powder with the following characteristics:
1H-NMR spectrum at 400 MHz: 7.01(s, 0.5H); 7.11(s,
0.5H); 7.21(dd, J = 5.0 and 8.0 Hz, 0.5H); 7.28(dd, J
= 5.0 and 8.0 Hz, 0. 5H) ; 7.39(m, 2H) ; from 7.42 to
7.58(m, 3H); 8.13(dd, J = 1.5 and 8.0 Hz, 0.5H); 8.33
(m, 1.5H); 8.67(d, J = 2.0 Hz, 0.5H); 8.99(d, J = 2.0
Hz, 0.5H); from 12.2 to 12.6(m, 2H).
HPLC-MS-DAD-ELSD: 321(+) =(M+H)(+) ; 319(-) =(M-H)(-)
(50/50 mixture of isomers).
Example 25
(5Z)-2-azepan-1-yl-5-[(5-chloro-1H-pyrrolo [2,3-
b]pyridin-3-yl)methylidene]-3,5-dihydro-4H-imidazol-4-
one
(5Z)-2-azepan-1-yl-5-[(5-chloro-1H-pyrrolo[2,3-
b]pyridin-3-yl)methylidene]-3,5-dihydro-4H-imidazol-4-
one can be prepared as in Example 7, but from 278 mg of
(5Z)-5- [(5-chloro-1H-pyrrolo[2,3-b]pyridin-3-

yl)methylene]-2-thioxoimidazolidin-4-one(Example 3),
2.5 cm3 of ethanol and 992 mg of azepane. After one
hour at a temperature of 160°C under microwave
irradiation and filtration of the solid, 92 mg of(5Z)-
2-azepan-1-yl-5-[(5-chloro-1H-pyrrolo[2,3-b]pyridin-3-
yl)methylidene]-3,5-dihydro-4H-imidazol-4-one is
obtained in the form of a yellow powder with the
following characteristics:
Melting point: 310-320°C.
1H-NMR spectrum at 400 MHz: 1.53(m, 4H); 1.78(m
broad, 4H); 3.63(m spread out, 4H); 6.58(s, 1H); 8.13
(s, 1H); 8.21(d, J = 3.0 Hz, 1H); 9.21(s broad, 1H);
11.0(m spread out, 1H); 12.15(m spread out, 1H).
HPLC-MS-DAD-ELSD: 344(+) =(M+H)(+) ; 342(-) =(M-H)(-).
Example 26
(5Z)-5-[(5-chloro-1H-pyrrolo[2,3-b]pyridin-3-
yl)methylidene]-2-(4-phenylpiperazin-1-yl)-3,5-dihydro-
4H-imidazol-4-one
(5Z)-5-[(5-chloro-1H-pyrrolo[2 ,3-b]pyridin-3-
yl)methylidene]-2-(4-phenylpiperazin-1-yl)-3,5-dihydro-
4H-imidazol-4-one can be prepared as in Example 7, but
from 167 mg of(5Z)-5-[(5-chloro-1H-pyrrolo[2,3-
b]pyridin-3-yl)methylene]-2-thioxoimidazolidin-4-one
(Example 3), 2cm3 of ethanol and 973 mg of 4-
phenylpiperazine. After one hour at a temperature of
160°C under microwave irradiation, then filtration of
the solid, 182 mg of(5Z)-5-[(5-chloro-1H-pyrrolo[2,3-
b]pyridin-3-yl)methylidene]-2-(4-phenylpiperazin-1-yl)-
3,5-dihydro-4H-imidazol-4-one is obtained in the form
of orange powder with the following characteristics:
Melting point: 340-350°C.

1H-NMR spectrum at 400 MHz: 3.29(m partially masked,
4H) ; 3.75(m, 4H); 6.70(s, 1H); 6.82(J = 7.5 Hz, 1H);
7.02(d, J = 7.5 Hz, 2H) ; 7.24(t, J = 7.5 Hz, 2H) ;
8.24(d, J = 3.0 Hz, 1H) ; 8.28(s, 1H) ; 8.98(d, J =
3.0 Hz, 1H); 11.2(s broad, 1H); 12.2(s broad, 1H).
UPLC-MS-DAD-ELSD: 407(+)/...=(M+H)(+)/...(1 chlorine atom
Cl present).
Example 27
(5Z)-5-[(5-chloro-1H-pyrrolo[2,3-b]pyridin-3-
yl)methylidene]-2-pyrrolidin-1-yl-3,5-dihydro-4H-
imidazol-4-one
(5Z)-5-[(5-chloro-1H-pyrrolo[2,3-b]pyridin-3-
yl)methylidene]-2-pyrrolidin-1-yl-3,5-dihydro-4H-
imidazol-4-one can be prepared as in Example 7, but
from 223 mg of(5Z)-5-[(5-chloro-1H-pyrrolo[2,3-
b]pyridin-3-yl)methylene]-2-thioxoimidazolidin-4-one
(Example 3), 2.5 cm3 of ethanol and 569 mg of
pyrrolidine. After thirty minutes at a temperature of
160°C under microwave irradiation, then filtration of
the solid, 186 mg of(5Z)-5-[(5-chloro-1H-pyrrolo[2,3-
b]pyridin-3-yl)methylidene]-2-pyrrolidin-1-yl-3,5-
dihydro-4H-imidazol-4-one is obtained in the form of a
yellow powder with the following characteristics:
Melting point: 350-360°C.
1H-NMR spectrum at 400 MHz: 1.94(m, 4H) ; 3.52(m
broad, 4H); 6.59(s, 1H) ; 8.19(s, 1H) ; 8.21(d, J =
3.0 Hz, 1H); 9.15(m spread out, 1H) ; 11.1(m spread
out, 1H) ; 12.15(m spread out, 1H).
HPLC-MS-DAD-ELSD: 316(+)/...=(M+H)(+)/...; 314(-)/...=(M-H)( -
)/...

Example 28
(5Z)-5-t(5-chloro-1H-pyrrolo[2,3-b]pyridin-3-
yDmethylidene]-2-morpholin-4-yl-3, 5-dihydro-4H-
imidazol-4-one
(5Z)-5-[(5-chloro-1H-pyrrolo[2,3-b]pyridin-3-
yl)methylidene]-2-morpholin-4-yl-3,5-dihydro-4H-
imidazol-4-one can be prepared as in Example 7, but
from 139 mg of(5Z)-5-[(5-chloro-1H-pyrrolo[2,3-
b]pyridin-3-yl)methylene]-2-thioxoimidazolidin-4-one
(Example 3), 2.5 cm3 of ethanol and 436 mg of
morpholine. After two hours at a temperature of 160°C
under microwave irradiation, then filtration of the
solid, 92 mg of(5Z)-5-[(5-chloro-1H-pyrrolo[2,3-
b]pyridin-3-yl)methylidene]-2-morpholin-4-yl-3,5-
dihydro-4H-imidazol-4-one is obtained in the form of a
yellow powder with the following characteristics:
1H-NMR spectrum at 400 MHz: 3.59(m, 4H) ; 3.70(m, 4H);
6.70(s, 1H) ; 8.22(m, 2H) ; 8.94(m spread out, 1H) ;
11.15(m spread out, 1H); 12.2(m spread out, 1H).
Example 29
(5Z)-5-[(5-chloro-1H-pyrrolo[2,3-b]pyridin-3-
yl)methylidene]-2-[(2-methylpropyl)amino]-3,5-dihydro-
4H-imidazol-4-one
(5Z)-5-[(5-chloro-1H-pyrrolo[2,3-b]pyridin-3-
yl)methylidene]-2-[(2-methylpropyl)amino]-3,5-dihydro-
4H-imidazol-4-one can be prepared as in Example 7 but
from 200 mg of(5Z)-5-[(5-chloro-1H-pyrrolo[2,3-
b]pyridin-3-yl)methylene]-2-thioxoimidazolidin-4-one
(Example 3), 4 cm3 of ethanol and 525 mg of 2-
methylpropylamine. After forty-five minutes at a
temperature of 16 0°C under microwave irradiation, then
filtration of the solid, 89 mg of(5Z)-5-[(5-chloro-1H-

pyrrolo [2,3-b]pyridin-3-yl)methylidene]-2-[(2-
methylpropyl)amino]-3,5-dihydro-4H-imidazol-4-one is
obtained in the form of a yellow powder with the
following characteristics:
Melting point: 325-330°C.
1H-NMR spectrum at 400 MHz: 0.95(d, J = 6.5 Hz, 6H) ;
1.93(m, 1H) ; 3.19(t, J = 6 Hz, 2H) ; 6.57(s, 1H) ;
7.21(s broad 1H) ; 8.11(s, 1H) ; 8.21(s broad, 1H) ;
9.25(m spread out, 1H); 10.4(m spread out, 1H); 12.15(m spread out, 1H).
HPLC-MS-DAD-ELSD: 318(+)/...=(M+H)(+)/...; 316(-)/...=(M-H)(-
) /...(1 Cl present).
Example 30
(5Z)-5-[(5-chloro-1H-pyrrolo[2,3-b]pyridin-3-
yl)methylidene]-2-piperidin-1-yl-3 , 5-dihydro-4H-
imidazol-4-one
(5Z)-5-[(5-chloro-1H-pyrrolo[2,3-b]pyridin-3-
yl)methylidene]-2-piperidin-1-yl-3 , 5-dihydro-4H-
imidazol-4-one can be prepared as in Example 7, but
from 195 mg of(5Z)-5-[(5-chloro-1H-pyrrolo[2,3-
b]pyridin-3-yl)methylene]-2-thioxoimidazolidin-4-one
(Example 3), 2.5 cm3 of ethanol and 596 mg of
piperidine. After thirty minutes at a temperature of
160°C under microwave irradiation, then filtration of
the solid, 152 mg of(5Z)-5-[(5-chloro-1H-pyrrolo[2,3-
b]pyridin-3-yl)methylidene]-2-piperidin-1-yl-3,5-
dihydro-4H-imidazol-4-one is obtained in the form of
orange powder with the following characteristics:
Melting point: 315-320°C.

1H-NMR spectrum at 400 MHz: Of 1.51 to 1.70(m, 6H) ;
3.59(m, 4H) ; 6.61(s, 1H) ; 8.19(s, 1H) ; 8.22(d, J =
3.0 Hz, 1H) ; 9.01(m spread out, 1H) ; 11.0(m spread
out, 1H); 12.1(m spread out, 1H).
HPLC-MS-DAD-ELSD: 330(+)/...=(M+H)(+)/...; 328(-)/...=(M-H)(-
) /...(1 Cl present).
Example 31
(5Z)-5-[(5-chloro-1H-pyrrolo[2,3-b]pyridin-3-
yl)methylidene]-2-[methyl(2-methylpropyl)amino]-3,5-
dihydro-4H-imidazol-4-one
(5Z)-5-[(5-chloro-1H-pyrrolo[2,3-b]pyridin-3-
yl)methylidene]-2-[methyl(2-methylpropyl)amino]-3,5-
dihydro-4H-imidazol-4-one can be prepared as in Example
7, but from 63 mg of(5Z)-5-[(5-chloro-1H-pyrrolo[2,3-
b]pyridin-3-yl)methylene]-2-thioxoimidazolidin-4-one
(Example 3) , 1 cm3 of ethanol and 187 mg of N-methyl-
(2-methyl)propylamine. After fifteen minutes at a
temperature of 160°C, thirty minutes at 170°C, and one
hour thirty minutes at 180°C under microwave
irradiation, the mixture is concentrated under vacuum.
The residue is taken up in methylene chloride and the
solid is filtered to obtain 30 mg of(5Z)-5-[(5-chloro-
lH-pyrrolo[2,3-b]pyridin-3-yl)methylidene]-2-[methyl(2-
methylpropyl)amino]-3,5-dihydro-4H-imidazol-4-one in
the form of a yellow powder with the following
characteristics:
1H-NMR spectrum at 400 MHz: 0.91(d, J = 6.5 Hz, 6H) ;
2.04(m, 1H) ; 3.09(s, 3H) ; 3.30(m masked, 2H) ; 6.59
(s, 1H) ; 8.13(s broad, 1H); 8.21(d, J = 2.0 Hz, 1H) ;
9.20(m spread out, 1H) ; 11.1(m spread out, 1H) ; 12.15
(m spread out, 1H).

HPLC-MS-DAD-ELSD: 332(+)/...=(M+H)(+) /...; 330(-)/...=(M-H)(-
)/...(1 chlorine atom Cl present).
Example 32
(5Z)-5-[(5-chloro-1H-pyrrolo[2,3-b]pyridin-3-
yl)methylidene]-2-(dimethylamino)-3,5-dihydro-4H-
imidazol-4-one
(5Z)-5-[(5-chloro-1H-pyrrolo[2,3-b]pyridin-3-
yl)methylidene]-2-(dimethylamino)-3,5-dihydro-4H-
imidazol-4-one can be prepared as in Example 7, but
from 279 mg of(5Z)-5-[(5-chloro-1H-pyrrolo[2,3-
b]pyridin-3-yl)methylene]-2-thioxoimidazolidin-4-one
(Example 3), 1.5 cm3 of ethanol and 2 cm3 of solution of
dimethylamine at 33% in ethanol. After thirty minutes
at a temperature of 160°C under microwave irradiation,
then filtration of the solid, 220 mg of(5Z)-5-[(5-
chloro-1H-pyrrolo[2,3-b]pyridin-3-yl)methylidene]-2-
(dimethylamino)-3,5-dihydro-4H-imidazol-4-one is
obtained in the form of a yellow powder with the
following characteristics:
Melting point: 350°C.
1H-NMR spectrum at 400 MHz: 3.10(s, 6H); 6.60(s, 1H) ;
8.19(s, 1H); 8.22(d, J = 2.0 Hz, 1H); 9.09(m spread
out, 1H); 11.1(m spread out, 1H); 12.15(m spread out,
1H).
HPLC-MS-DAD-ELSD: 290(+)/...=(M+H)(+)/...(1 chlorine atom
Cl present).
Example 33
(5Z)-5-[(5-bromo-1H-pyrrolo[2,3-b]pyridin-3-
yl)methylidene]-2-[(cyclopropylmethyl)amino]-3,5-
dihydro-4H-imidazol-4-one

(5Z)-5-[(5-bromo-1H-pyrrolo[2,3-b]pyridin-3-
yl)methylidene]-2-[(cyclopropylmethyl)amino]-3,5-
dihydro-4H-imidazol-4-one can be prepared as in Example
7, but from 860 mg of(5Z)-5-[(5-bromo-1H-pyrrolo[2,3 -
b]pyridin-3-yl)methylene]-2-thioxoimidazolidin-4-one
(Example 14), 8 cm3 of ethanol and 1.89 g of 1-
cyclopropylmethanamine. After thirty minutes at a
temperature of 160°C under microwave irradiation, then
filtration of the solid, 500 mg of(5Z)-5-[(5-bromo-1H-
pyrrolo[2,3-b]pyridin-3-yl)methylidene]-2-
[(cyclopropylmethyl)amino]-3,5-dihydro-4H-imidazol-4-
one is obtained in the form of a pale yellow powder
with the following characteristics:
1H-NMR spectrum at 400 MHz: 0.30(m, 2H) ; 0.49(m, 2H) ;
1.17(m, 1H) ; 3.38(m partially masked, 2H) ; 6.59(s,
1H); 7.23(m broad, 1H); 8.11(s, 1H); 8.28(d, J = 2.0
Hz, 1H) ; 9.32(m broad, 1H) ; 10.4(m spread out, 1H);
12.15(m spread out, 1H).
HPLC-MS-DAD-ELSD: 360(+) =(M+H)(+) ; 358(-) =(M-H)(-)
(1 bromine atom Br present).
Example 34
(5Z)-2-[(cyclopropylmethyl)amino]-5-[(5-methoxy-1H-
pyrrolo[2,3-b]pyridin-3-yl)methylidene]-3,5-dihydro-4H-
imidazol-4-one
(5Z)-2-[(cyclopropylmethyl)amino]-5-[(5-methoxy-1H-
pyrrolo[2,3-b]pyridin-3-yl)methylidene]-3,5-dihydro-4H-
imidazol-4-one can be prepared as in Example 7, but
from 200 mg of(5Z)-5-[(5-methoxy-1H-pyrrolo[2,3-
b]pyridin-3-yl)methylidene]-2-thioxoimidazolidin-4-one
(Example 15), 3 cm3 of ethanol and 519 mg of 1-
cyclopropylmethanamine. After forty minutes at a
temperature of 13 0°C and ten minutes at 14 0°C under

microwave irradiation, the mixture is concentrated
under vacuum. The residue is purified by preparative
LC-MS [Column Xterra RP18 30x100; 5u; with
water buffered with 10 mM of ammonium hydrogen
carbonate adjusted to pH 9 with ammonia / acetonitrile
with gradient from 70/30 to 0/100 in 8 min], to obtain
58 mg of(5Z)-2-[(cyc1opropylmethyl)amino]-5-[(5-
methoxy-1H-pyrrolo[2,3-b]pyridin-3-yl)methylidene]-3,5-
dihydro-4H-imidazol-4-one in the form of a yellow
lyophilizate with the following characteristics:
Melting point: 280-286°C.
1H-NMR spectrum at 400 MHz: 0.28(m, 2H) ; 0.48(m, 2H) ;
1.13(m, 1H) ; from 3.15 to 3.40(m partially masked,
2H) ; 3.88(s, 3H) ; 6.62(s, 1H) ; 7.14(m, 1H) ; 7.98(m,
1H) ; 8.11(m, 1H) ; 8.40(m, 1H) ; 10.35(m spread out,
1H); 11.8(m spread out, 1H).
HPLC-MS-DAD-ELSD: 312(+) =(M+H)(+) ; 310(-) =(M-H)(-).
Example 35
(5Z)-2-[(cyclopropylmethyl)amino]-5-[(5-fluoro-1H-
pyrrolo[2,3-b]pyridin-3-yl)methylidene]-3,5-dihydro-4H-
imidazol-4-one
(5Z)-2-[(cyclopropylmethyl)amino]-5-[(5-fluoro-1H-
pyrrolo[2,3-b]pyridin-3-yl)methylidene]-3,5-dihydro-4H-
imidazol-4-one can be prepared as in Example 7, but
from 250 mg of(5Z)-5-[(5-fluoro-1H-pyrrolo[2,3-
b]pyridin-3-yl)methylidene]-2-thioxoimidazolidin-4-one
(Example 19), 4 cm3 of ethanol and 678 mg of 1-
cyclopropylmethanamine. After thirty minutes at a
temperature of 160°C under microwave irradiation, then
filtration of the solid, 73 mg of(5Z) -2-
[(cyclopropylmethyl)amino]-5-[(5-fluoro-1H-pyrrolo[2,3-

b]pyridin-3-yl)methylidene]-3,5-dihydro-4H-imidazol-4-
one is obtained in the form of a yellow powder with the
following characteristics:
Melting point: 312°C.
1H-NMR spectrum at 400 MHz: 0.29(m, 2H); 0.48(m, 2H) ;
1.13(m, 1H) ; 3.22(t, J = 6.0 Hz, 1H) ; 6.59(s, 1H) ;
7.27(m spread out, 1H); 8.22(m, 2H); 8.76(d broad, J
= 9.0 Hz, 1H) ; 10.45(m spread out, 1H) ; 12.05(m
spread out, 1H).
UPLC-MS-DAD-ELSD: 300(+) =(M+H)(+) .
Example 36
(5Z)-2-azepan-1-yl-5-[(5-fluoro-1H-pyrrolo[2,3-
b]pyridin-3-yl)methylidene]-3,5-dihydro-4H-imidazol-4-
one
(5Z)-2-azepan-1-yl-5-[(5-fluoro-1H-pyrrolo[2,3-
b]pyridin-3-yl)methylidene]-3,5-dihydro-4H-imidazol-4-
one can be prepared as in Example 7, but from 60 mg of
(5Z)-5-[(5-fluoro-1H-pyrrolo[2,3-b]pyridin-3-
yl)methylidene]-2-thioxoimidazolidin-4-one(Example
19), 0.6 cm3 of ethanol and 227 mg of azepane. After
thirty minutes at a temperature of 160°C under
microwave irradiation, then filtration of the solid,
22 mg of(5Z)-2-azepan-1-yl-5-[(5-fluoro-1H-
pyrrolo[2,3-b]pyridin-3-yl)methylidene]-3,5-dihydro-4H-
imidazol-4-one is obtained in the form of a yellow
powder with the following characteristics:
Melting point: 299°C.
1H-NMR spectirum at 400 MHz: from 1.44 to 1.87(m, 8H) ;
3.62(m spread out, 4H) ; 6.59(s, 1H) ; 8.21(s broad,

2H); 8.77(m spread out, 1H); 11.0(m very broad, 1H);
12.05(m spread out, 1H).
HPLC-MS-DAD-ELSD: 328(+) =(M+H)(+).
Example 37
3-[(Z)-{2-[(cyclopropylmethyl)amino]-5-oxo-1,5-dihydro-
4H-imidazol-4-ylidene}methyl]-1H-pyrrolo[2,3-
b]pyridine-5-carbonitrile
3-[(Z)-{2-[(cyclopropylmethyl)amino]-5-oxo-1,5-dihydro-
4H-imidazol-4-ylidene}methyl]-1H-pyrrolo[2,3-
b]pyridine-5-carbonitrile can be prepared as in Example
7, but from 200 mg of 3-[(Z) -(5-oxo-2-
thioxoimidazolidin-4-ylidene)methyl]-1H-pyrrolo[2,3-
b]pyridine-5-carbonitrile(Example 20), 2 cm3 of
ethanol and 52 8 mg of 1-cyclopropylmethanamine. After
thirty minutes at a temperature of 140°C under
microwave irradiation, then filtration of the solid,
58 mg of 3-[(Z)-{2-[(cyclopropylmethyl)amino]-5-oxo-
1,5-dihydro-4H-imidazol-4-ylidene}methyl]-1H-
pyrrolo[2,3-b]pyridine-5-carbonitrile is obtained in
the form of a yellow powder with the following
characteristics:
Melting point: 335°C.
1H-NMR spectrum at 400 MHz: 0.30(m, 2H) ; 0.49(m, 2H) ;
1.13(m, 1H) ; from 3.15 to 3.40(m masked, 2H) ; 6.60
(s, 1H) ; 7.40(s broad, 1H) ; 8.25(s broad, 1H) ; 8.60
(s, 1H) ; 9.53(s broad, 1H) ; 10.7(m spread out, 1H) ;
12.2(m spread out, 1H).
HPLC-MS-DAD-ELSD: 307(+) =(M+H)(+); 305(-) =(M-H)(-).

Example 38
(5Z)-2-[(cyclopropylmethyl)amino]-5-[(5-phenyl-1H-
pyrrolo[2,3-b]pyridin-3-yl)methylidene]-3,5-dihydro-4H-
imidazol-4-one
(5Z)-2-[(cyclopropylmethyl)amino]-5-[(5-phenyl-1H-
pyrrolo[2,3-b]pyridin-3-yl)methylidene]-3,5-dihydro-4H-
imidazol-4-one can be prepared as in Example 7, but
from 140 mg of(5Z)-5-[(5-phenyl-1H-pyrrolo[2,3 -
b]pyridin-3-yl)methylidene]-2-thioxoimidazolidin-4-one
(Example 16) , 3 cm3 of ethanol and 311 mg of 1-
cyclopropylmethanamine. After forty-five minutes at a
temperature of 140°C and thirty minutes at 150°C under
microwave irradiation, the solid is filtered, and then
purified by preparative LC-MS [Column Xterra RP18
30x100; 5u; with water buffered with 10 mM of ammonium
hydrogen carbonate adjusted to pH 9 with ammonia /
acetonitrile with gradient from 70/30 to 0/100 in 8
min], to obtain 11 mg of(5Z) -2-
[(cyclopropylmethyl)amino]-5-[(5-phenyl-1H-pyrrolo[2,3-
b]pyridin-3-yl)methylidene]-3,5-dihydro-4H-imidazol-4-
one in the form of a yellow powder with the following
characteristics:
1H-NMR spectrum at 400 MHz: 0.22(m, 2H) ; 0.43(m, 2H) ;
1.11(m, 1H) ; 3.26(m partially masked, 2H) ; 6.70(s,
1H); 7.15(m broad, 1H); 7.38(t, J = 7.5 Hz, 1H); 7.49
(t, J = 7.5 Hz, 2H) ; 7.77(d broad, J = 7.5 Hz, 2H) ;
8.17(s broad, 1H) ; 8.53(s broad, 1H) ; 9.17(m spread
out, 1H); 10.4(m spread out, 1H); 12.0(m spread out,
1H).
HPLC-MS-DAD-ELSD: 358(+) =(M+H)(+); 356(-) =(M-H)(-).
Example 39

(5Z)-2-morpholin-4-yl-5-[(5-phenyl-1H-pyrrolo[2,3-
b]pyridin-3-yl)methylidene]-3,5-dihydro-4H-imidazol-4-
one
(5Z)-2-morpholin-4-yl-5-[(5-phenyl-1H-pyrrolo[2,3-
b]pyridin-3-yl)methylidene]-3,5-dihydro-4H-imidazol-4-
one can be prepared as in Example 7, but from 200 mg of
(5Z)-5-[(5-phenyl-1H-pyrrolo[2,3-b]pyridin-3-
yl)methylene]-2-thioxoimidazolidin-4-one(Example 16),
2 cm3 of ethanol and 544 mg of morpholine. After thirty
minutes at a temperature of 160°C under microwave
irradiation, then filtration of the solid, 160 mg of
(5Z)-2-morpholin-4-yl-5-[(5-phenyl-1H-pyrrolo[2,3-
b]pyridin-3-yl)methylidene]-3,5-dihydro-4H-imidazol-4-
one is obtained in the form of a yellow powder with the
following characteristics:
Melting point: 3 61°C.
1H-NMR spectrum at 400 MHz: from 3.50 to 3.75(m, 8H) ;
6.80(s, 1H) ; 7.38(t, J = 7.5 Hz, 1H) ; 7.49(t, J =
7.5 Hz, 2H) ; 7.76(d, J = 7.5 Hz, 2H) ; 8.21(s, 1H) ;
8.57(d, J = 2.0 Hz, 1H); 9.12(s broad, 1H); 11.15(m
spread out, 1H); 12.1(s broad, 1H).
HPLC-MS-DAD-ELSD: 374(+) =(M+H)(+) ; 372(-) =(M-H)(-).
Example 40
(5Z)-5-[(5-phenyl-1H-pyrrolo[2,3-b]pyridin-3-
yl)methylidene]-2-piperidin-1-yl-3,5-dihydro-4H-
imidazol-4-one
(5Z)-5-[(5-phenyl-1H-pyrrolo[2,3-b]pyridin-3-
yl)methylidene]-2-piperidin-1-yl-3,5-dihydro-4H-
imidazol-4-one can be prepared as in Example 7, but
from 200 mg of(5Z)-5-[(5-phenyl-1H-pyrrolo[2,3-
b]pyridin-3-yl)methylene]-2-thioxoimidazolidin-4-one

(Example 16) , 2 cm3 of ethanol and 531 mg of
piperidine. After thirty minutes at a temperature of
160°C under microwave irradiation, then filtration of
the solid, 137 mg of(5Z)-5-[(5-phenyl-1H-pyrrolo[2,3-
b]pyridin-3-yl)methylidene]-2-piperidin-1-yl-3,5-
dihydro-4H-imidazol-4-one is obtained in the form of a
yellow powder with the following characteristics:
Melting point: 307°C.
1H-NMR spectrum at 400 MHz: from 1.50 to 1.69(m, 6H) ;
3.59(m, 4H) ; 6.71(s, 1H) ; 7.38(t, J = 7.5 Hz, 1H) ;
7.49(t, J = 7.5 Hz, 2H) ; 7.75(d, J = 7.5 Hz, 2H) ;
8.15(s, 1H) ; 8.55(d, J = 2.0 Hz, 1H) ; 9.2 0(s broad,
1H); 11.0(m spread out, 1H); 12.05(s broad, 1H).
HPLC-MS-DAD-ELSD: 372(+) =(M+H)(+); 370(-) =(M-H)(-).
Example 41
(5Z)-2-(4-methylpiperazin-1-yl)-5-[(5-phenyl-1H-
pyrrolo[2,3-b]pyridin-3-yl)methylidene]-3,5-dihydro-4H-
imidazol-4-one
(5Z)-2-(4-methylpiperazin-1-yl)-5-[(5-phenyl-1H-
pyrrolo [2,3-b]pyridin-3-yl)methylidene]-3,5-dihydro-4H-
imidazol-4-one can be prepared as in Example 7, but
from 200 mg of(5Z)-5-[(5-phenyl-1H-pyrrolo[2,3-
b]pyridin-3-yl)methylene]-2-thioxoimidazolidin-4-one
(Example 16) , 2 cm3 of ethanol and 625 mg of 4-
methylpiperatzine. After forty minutes at a temperature
of 160°C under microwave irradiation, then filtration
of the solid, 140 mg of(5Z)-2-(4-methylpiperazin-1-
yl) -5-[(5-phenyl-1H-pyrrolo[2,3-b]pyridin-3-
yl)methylidene]-3,5-dihydro-4H-imidazol-4-one is
obtained in the form of a yellow powder with the
following characteristics:

Melting point: 304°C.
1H-NMR spectrum at 400 MHz: 2.23(s, 3H) ; 2.40(m, 4H) ;
3.59(m, 4H) ; 6.78(s, 1H) ; 7.3 8(t, J = 7.5 Hz, 1H) ;
7.49(t, J = 7.5 Hz, 2H) ; 7.76(d, J = 7.5 Hz, 2H) ;
8.19(s, 1H); 8.55(d, J = 2.0 Hz, 1H); 9.15(s broad,
1H) ; 11.1(mi spread out, 1H) ; 12.1(s broad, 1H) .
HPLC-MS-DAD-ELSD: 387(+) =(M+H)(+); 385(-) = (M-H)(-).
Example 4 2
(5Z)-2-azepan-1-yl-5-[(5-phenyl-1H-pyrrolo[2,3-
b]pyridin-3-yl)methylidene]-3,5-dihydro-4H-imidazol-4-
one
(5Z)-2-azepan-1-yl-5-[(5-phenyl-1H-pyrrolo[2,3-
b]pyridin-3-yl)methylidene]-3,5-dihydro-4H-imidazol-4-
one can be prepared as in Example 7, but from 200 mg of
(5Z)-5-[(5-phenyl-1H-pyrrolo[2,3-b]pyridin-3-
yl)methylene]-2-thioxoimidazolidin-4-one(Example 16),
2 cm3 of ethanol and 619 mg of azepane. After forty
minutes at a temperature of 160°C under microwave
irradiation, then filtration of the solid, 90 mg of
(5Z)-2-azepan-1-yl-5-[(5-phenyl-1H-pyrrolo[2,3-
b]pyridin-3-yl)methylidene]-3,5-dihydro-4H-imidazol-4-
one is obtained in the form of a yellow powder with the
following characteristics:
Melting point: 302°C.
1H-NMR spectrum at 400 MHz: from 1.47 to 1.78(m, 8H) ;
from 3.53 to 3.78(m spread out, 4H) ; 6.69(s, 1H) ;
7.38(t, J = 7.5 Hz, 1H) ; 7.49(t, J = 7.5 Hz, 2H) ;
7.73(d, J = 7.5 Hz, 2H) ; 8.14(s, 1H) ; 8.53(s broad,
1H) ; 9.18(s broad, 1H); 11.0(m spread out, 1H); 12.0(s broad, 1H).

HPLC-MS-DAD-ELSD: 386(+) =(M+H)(+); 384(-)=(M-H)(-).
Example 43
(5Z)-2-[(cyclopropylmethyl)amino]-5-[(5-methyl-1H-
pyrrolo[2,3-b]pyridin-3-yl)methylidene]-3,5-dihydro-4H-
imidazol-4-one
(5Z)-2-[(cyclopropylmethyl)amino]-5-[(5-methyl-1H-
pyrrolo[2,3-b]pyridin-3-yl)methylidene]-3,5-dihydro-4H-
imidazol-4-one can be prepared as in Example 7, but
from 240 mg of(5Z)-5-[(5-methyl-1H-pyrrolo[2,3-
b]pyridin-3-yl)methylidene]-2-thioxoimidazolidin-4-one
(Example 17), 4cm3 of ethanol and 661 mg of 1-
cyclopropylmethanamine. After thirty-five minutes at a
temperature of 160°C under microwave irradiation, then
filtration of the solid, 61 mg of(5Z) -2-
[(cyclopropylmethyl)amino]-5-[(5-methyl-1H-pyrrolo [2,3-
b]pyridin-3-yl)methylidene]-3,5-dihydro-4H-imidazol-4-
one is obtained in the form of a yellow powder with the
following characteristics:
Melting point: 319-320°C.
1H-NMR spectrum at 400 MHz: 0.29(m, 2H) ; 0.48(m, 2H);
1.16(m, 1H) ; 2.40(s, 3H) ; 3.23(t, J = 6.0 Hz, 2H) ;
6.59(s, 1H) ; 7.19(m spread out, 1H) ; 8.09(s, 1H) ;
8.12(s, 1H) ; 8.49(s, 1H) ; 10.25(m spread out, 1H) ;
11.8(m spread out, 1H).
HPLC-MS-DAD-ELSD: 296(+) =(M+H)(+); 294(-) =(M-H)(-).
Example 44
(5Z)-2-[(2-methylpropyl)amino]-5-[(5-methyl-1H-
pyrrolo[2,3-b]pyridin-3-yl)methylidene]-3,5-dihydro-4H-
imidazol-4-one

(5Z)-2-[(2-methylpropyl)amino]-5-[(5-methyl-1H-
pyrrolo[2,3-b]pyridin-3-yl)methylidene]-3,5-dihydro-4H-
imidazol-4-one can be prepared as in Example 7, but
from 240 rag of(5Z)-5-[(5-methyl-1H-pyrrolo[2,3-
b]pyridin-3-yl)methylidene]-2-thioxoimidazolidin-4-one
(Example 17) , 4 cm3 of ethanol and 680 mg of 2-
methylpropylamine. After thirty-five minutes at a
temperature of 160°C under microwave irradiation, then
filtration of the solid, 95 mg of(5Z)-2-[(2-
methylpropyl)amino]-5-[(5-methyl-1H-pyrrolo[2,3-
b]pyridin-3-yl)methylidene]-3,5-dihydro-4H-imidazol-4-
one is obtained in the form of a yellow powder with the
following characteristics:
Melting point: 338-339°C.
1H-NMR spectrum at 400 MHz: 0.93(d, J = 7.0 Hz, 6H) ;
1.94(m, 1H); 2.40(s, 3H); 3.19(t broad, J = 6.0 Hz,
2H) ; 6.58(s, 1H) ; 7.15(m spread out, 1H) ; 8.09(s,
1H) ; 8.11(s, 1H) ; 8.51(s broad, 1H) ; 11.1(m spread
out, 1H) ; 11.75(s broad, 1H).
HPLC-MS-DAD-ELSD: 298(+) =(M+H)(+) ; 296(-) =(M-H)(-).
Example 45
(5Z)-5-[(5-methyl-1H-pyrrolo[2,3~b]pyridin-3-
yl)methylidene]-2-piperidin-1-yl-3,5-dihydro-4H-
imidazol-4-one
(5Z)-5-[(5-methyl-1H-pyrrolo[2,3-b]pyridin-3-
yl)methylidene]-2-piperidin-1-yl-3,5-dihydro-4H-
imidazol-4-one can be prepared as in Example 7, but
from 240 mg of(5Z)-5-[(5-methyl-1H-pyrrolo[2,3-
b]pyridin-3-yl)methylidene]-2-thioxoimidazolidin-4-one
(Example 17) , 4 cm3 of ethanol and 791 mg of
piperidine. After forty minutes at a temperature of

160°C under microwave irradiation, then filtration of
the solid, 138 mg of(5Z)-5-[(5-methyl-1H-pyrrolo[2,3-
b]pyridin-3-yl)methylidene]-2-piperidin-1-yl-3,5-
dihydro-4H-imidazol-4-one is obtained in the form of a
yellow powder with the following characteristics:
Melting point: 320-321°C.
1H-NMR spectrum at 400 MHz: from 1.53 to 1.69 (m, 6H) ;
2.39(s, 3H); 3.58(m, 4H); 6.61(s, 1H); 8.09 (s, 1H);
8.14(s broad, 1H) ; 8.3 9(m spread out, 1H) ; 11.0(m
very broad, 1H); 11.8(m spread out, 1H).
HPLC-MS-DAD-ELSD: 310(+) =(M+H)(+); 308(-) =(M-H)(-).
Example 46
(5Z)-5-[(5-methyl-1H-pyrrolo[2,3-b]pyridin-3-
yl)methylidene]-2-(4-phenylpiperazin-1-yl)-3,5-dihydro-
4H-imidazol-4-one
(5Z)-5-[(5-methyl-1H-pyrrolo[2,3-b]pyridin-3-
yl)methylidene]-2-(4-phenylpiperazin-1-yl)-3,5-dihydro-
4H-imidazol-4-one can be prepared as in Example 7, but
from 240 mg of(5Z)-5-[(5-methyl-1H-pyrrolo[2,3-
b]pyridin-3-yl)methylidene]-2-thioxoimidazolidin-4-one
(Example 17), 4 cm3 of ethanol and 1.51 g of 4-
phenylpiperazine. After thirty minutes at a temperature
of 160°C under microwave irradiation, the solid is
filtered then taken up in 50 cm3 of ethanol, filtered
and dried under vacuum to obtain 166 mg of(5Z)-5-[(5-
methyl-1H-pyrrolo[2,3-b]pyridin-3-yl)methylidene]-2-(4-
phenylpiperazin-1-yl)-3,5-dihydro-4H-imidazol-4-one in
the form of a yellow powder with the following
characteristics:
Melting point: 331-332°C.

1H-NMR spectrum at 400 MHz: 2.41(s, 3H); 3.27(m, 4H) ;
3.73(m, 4H) ; 6.69(s, 1H) ; 6.82(t, J = 7.5 Hz, 1H) ;
7.01(d, J = 7.5 Hz, 2H) ; 7.25(t, J = 7.5 Hz, 2H) ;
8.10(s, 1H); 8.21(s, 1H); 8.39(s, 1H); 11.15(m very
broad, 1H) ; 11.9(s, 1H) .
HPLC-MS-DAD-ELSD: 387(+) =(M+H)(+); 385(-) =(M-H)(-).
Example 4 7
(5Z)-2-azepan-1-yl-5-[(5-methyl-1H-pyrrolo[2,3-
b]pyridin-3-yl)methylidene]-3,5-dihydro-4H-imidazol-4-
one
(5Z)-2-azepan-1-yl-5-[(5-methyl-1H-pyrrolo[2,3-
b]pyridin-3-yl)methylidene]-3,5-dihydro-4H-imidazol-4-
one can be prepared as in Example 7 but from 240 mg of
(5Z)-5-[(5-methyl-1H-pyrrolo[2,3-b]pyridin-3-
yl)methylidene]-2-thioxoimidazolidin-4-one(Example
17) , 4 cm3 of ethanol and 922 mg of azepane. After
thirty minutes at a temperature of 160°C under
microwave irradiation, then filtration of the solid,
34 mg of(5Z)-2-azepan-1-yl-5-[(5-methyl-1H-
pyrrolo[2,3-b]pyridin-3-yl)methylidene]-3,5-dihydro-4H-
imidazol-4-one is obtained in the form of a brown
powder with the following characteristics:
Melting point: 324-326°C.
1H-NMR spectrum at 400 MHz: 1.54(m, 4H); 1.76(s
broad, 4H); 2.39(s, 3H); 3.62(s broad, 4H); 6.57(s,
1H); 8.10(m, 2H); 8.51(s broad, 1H); 10.72(s broad,
1H); 11.77(s broad, 1H).
Example 48
(5Z)-2-[(cyclopropylmethyl)amino]-5-{[5-
(trifluoromethyl)-1H-pyrrolo[2,3-b]pyridin-3-
yl]methylidene}-3,5-dihydro-4H-imidazol-4-one

(5Z)-2-[(cyclopropylmethyl)amino]-5-{[5-
(trifluoromethyl)-1H-pyrrolo[2,3-b]pyridin-3-
yl]methylidene}-3,5-dihydro-4H-imidazol-4-one can be
prepared as in Example 7, but from 70 mg of(5Z)-2-
thioxo-5-{[5-(trifluoromethyl)-1H-pyrrolo[2,3-
b]pyridin-3-yl]methylidene}imidazolidin-4-one(Example
18), 3 cm3 of ethanol and 159 mg of 1-
cyclopropylmethanamine. After thirty minutes at a
temperature of 160°C under microwave irradiation, then
filtration of the solid, 32 mg of(5Z)-2-
[(cyclopropylmethyl)amino]-5-{[5-(trifluoromethyl)-1H-
pyrrolo[2,3-b]pyridin-3-yl]methylidene}-3,5-dihydro-4H-
imidazol-4-one is obtained in the form of a yellow
powder with the following characteristics:
Melting point: 350°C.
1H-NMR spectrum at 400 MHz: 0.27(m, 2H) ; 0.48(m, 2H) ;
1.13(m, 1H) ; 3.25(t, J = 6.0 Hz, 2H) ; 6.62(s, 1H) ;
7.33(m spread out, 1H) ; 8.19(s, 1H) ; 8.57(s broad,
1H); 9.71(m spread out, 1H); 10.6(m spread out, 1H);
12.4(m spread out, 1H) .
HPLC-MS-DAD-ELSD: 350(+) =(M+H)(+) .
Example 49
(5Z)-2-azepan-1-yl-5-{ [5-(trifluoromethyl)-1H-
pyrrolo[2,3-b]pyridin-3-yl]methylidene}-3,5-dihydro-4H-
imidazol-4-one
(5Z)-2-azepan-1-yl-5-{[5-(trifluoromethyl)-1H-
pyrrolo[2,3-b]pyridin-3-yl]methylidene}-3,5-dihydro-4H-
imidazol-4-one can be prepared as in Example 7, but
from 70 mg of(5Z)-2-thioxo-5-{[5-(trifluoromethyl)-1H-
pyrrolo[2,3-b]pyridin-3-yl]methylidene}imidazolidin-4-
one(Example 18) , 3 cm3 of ethanol and 222 mg of

azepane. After fifty minutes at a temperature of 160°C
under microwave irradiation, then filtration of the
solid, 22 mg of(5Z)-2-azepan-1-yl-5-{[5-
(trifluoromethyl)-1H-pyrrolo[2,3-b]pyridin-3-
yl]methylidene}-3,5-dihydro-4H-imidazol-4-one is
obtained in the form of a yellow powder with the
following characteristics:
Melting point: 340°C.
1H-NMR spectrum at 400 MHz: 1.53(m, 4H} ; 1.74(m
broad, 4H) ; from 3.40 to 3.90(m spread out, 4H) ; 6.61
(s, 1H); 8.18(s, 1H) ; 8.56(s broad, 1H) ; 9.77(m
spread out, 1H); 11.1(m spread out, 1H) ; 12.4(m
spread out, 1H).
HPLC-MS-DAD-ELSD: 378(+) =(M+H)(+); 376(-) =(M-H)(-).
Example 50
(5Z)-2-[(cyclopropylmethyl)amino]-5-{[5-(phenylamino)-
lH-pyrrolo[2,3-b]pyridin-3-yl]methylidene}-3,5-dihydro-
4H-imidazol-4-one
(5Z)-2-[(cyclopropylmethyl)amino]-5-{[5-(phenylamino)-
lH-pyrrolo[2,3-b]pyridin-3-yl]methylidene}-3,5-dihydro-
4H-imidazol-4-one can be prepared as in Example 7, but
from 70 mg of(5Z)-5-[(5-phenylamino-1H-pyrrolo[2,3-
b]pyridin-3-yl)methylene]-2-thioxoimidazolidin-4-one
(Example 21), 1 cm3 of ethanol and 148 mg of 1-
cyclopropylmethanamine. After thirty minutes at a
temperature of 160°C under microwave irradiation, the
yellow solid precipitated in the reaction mixture is
filtered to obtain 18 mg of(5Z)-5-[(5-phenylamino-1H-
pyrrolo[2,3-b]pyridin-3-yl)methylene]-2-
thioxoimidazolidin-4-one in the form of orange powder
with the following physical characteristics:

1H-NMR spectrum at 400 MHz: 0.16(m, 2H); 0.39(m, 2H);
1.01(m, 1H) ; 3.08(t, J = 6.0 Hz, 2H) ; 6.54(s, 1H) ;
6.71(t, J.= 7.5 Hz, 1H) ; 6.93(d, J = 7.5 Hz, 2H) ;
7.03(m spread out, 1H); 7.18(t, J = 7.5 Hz, 2H); 7.91
(S, 1H); 8.05(s, 1H); 8.11(s, 1H); 8.50(s, 1H); 10.3
(m spread out, 1H); 11.8(m spread out, 1H).
LC-MS(1): retention time 3.55 min; HPLC-MS-DAD-ELSD:
371(+) =(M+H)(+); 373(-) =(M-H)(-).
Example 51
(5Z)-2-[(cyclopropylmethyl)amino]-5-[(5-morpholin-4-yl-
1H-pyrrolo[2,3-b]pyridin-3-yl)methylidene]-3,5-dihydro-
4H-imidazol-4-one
(5Z)-2-[(cyclopropylmethyl)amino]-5-[(5-morpholin-4-yl-
1H-pyrrolo[2,3-b]pyridin-3-yl)methylidene]-3,5-dihydro-
4H-imidazol-4-one can be prepared as in Example 7, but
from 160 mg of(5Z)-5-[(5-morpholin-4-yl-1H-
pyrrolo[2,3-b]pyridin-3-yl)methylidene]-2-
thioxoimidazolidin-4-one(Example 22), 2 cm3 of ethanol
and 345 mg of 1-cyclopropylmethanamine. After one hour
at a temperature of 160°C under microwave irradiation,
the yellow solid precipitated in the reaction mixture
is filtered to obtain 100 mg of(5Z)-2-
[(cyclopropylmethyl)amino]-5-[(5-morpholin-4-yl-1H-
pyrrolo[2,3-b]pyridin-3-yl)methylidene]-3,5-dihydro-4H-
imidazol-4-one in the form of a yellow powder with the
following physical characteristics:
Melting point: 331°C.
1H-NMR spectrum at 400 MHz: 0.29(m, 2H); 0.48(m, 2H) ;
1.12(m, 1H) ; 3.13(m, 4H) ; 3.22(t, J = 6.0 Hz, 2H) ;
3.79(m, 4H) ; 6.61(s 1H) ,- 7.11(m broad, 1H) ; 8.08(m,

2H); 8.38(s broad, 1H); 10.3(m spread out, 1H); 11.7(s broad, 1H).
HPLC-MS-DAD-ELSD: 367=(M+H)(+); 365(-) =(M-H)(-).
Example 52
(5Z)-2-[(cyclopropylmethyl)amino]-5-[(5-thiophen-3-yl-
1H-pyrrolo[2,3-b]pyridin-3-yl)methylidene]-3,5-dihydro-
4H-imidazol-4-one
(5Z)-2-[(cyclopropylmethyl)amino]-5-[(5-thiophen-3-yl-
1H-pyrrolo[2,3-b]pyridin-3-yl)methylidene]-3,5-dihydro-
4H-imidazol-4-one can be prepared as follows:
A microwave oven reactor is charged with 150 mg of
(5Z)-5-[(5-bromo-1H-pyrrolo[2,3-b]pyridin-3-
yl)methylene]-2-[(cyclopropylmethyl)amino]-3,5-dihydro-
4H-imidazol-4-one(Example 33), 4.8 cm3 of dioxan,
1.2 cm3 of water, 80 mg of thiophene-3-boronic acid,
54 0 mg of caesium carbonate and 15 mg of 1,1'-
bis(diphenylphosphino)-ferrocenedichloropalladium(II).
The reactor is sealed and irradiated for 2 x thirty
minutes at 145°C. After adding 80 mg of thiophene-3-
boronic acid and 14 mg of catalyst, the reaction
mixture is irradiated again for 30 minutes at 150°C.
The reaction mixture is concentrated under vacuum,
taken up in 20 cm3 of water and 20 cm3 of ethyl acetate.
85 mg of insoluble matter is filtered. The filtrate is
decanted and re-extracted with ethyl acetate. The
organic phases are dried over magnesium sulphate, then
concentrated under vacuum to give 92 mg of a brown
solid. The two solid residues isolated, containing the
expected product, are combined and then purified by
preparative LC-MS [Column Xterra RP18 30x100; 5u; with
water buffered with 10 mM of ammonium hydrogen
carbonate adjusted to pH 9 with ammonia / acetonitrile

with gradient from 70/30 to 0/100 in 8 min]to obtain
25 mg of(5Z)-(5Z)-2-[(cyclopropylmethyl)amino]-5-[(5-
thiophen-3-yl-1H-pyrrolo[2,3-b]pyridin-3-
yl)methylidene]-3,5-dihydro-4H-imidazol-4-one in the
form of brown powder with the following physical
characteristics:
1H-NMR spectrum at 400 MHz: 0.29(m, 2H) ; 0.49(m, 2H) ;
1.16(m, 1H) ; 3.27(m partially masked, 2H) ; 6.71(s,
1H) ; 7.19(m broad, 1H) ; 7.69(m, 2H) ; 7.91(s broad,
1H); 8.19(s broad, 1H); 8.64(d, J = 2.0 Hz, 1H); 9.07
(s broad, 1H); 10.4(m spread out, 1H); 11.95(m spread
out, 1H).
HPLC-MS-DAD-ELSD: 358(+) =(M+H)(+); 356(-) =(M-H)(-).
Example 53
(5Z)-2-[(cyclopropylmethyl)amino]-5-{[5-(4-piperazin-1-
ylphenyl)-1H-pyrrolo [2,3-b]pyridin-3-yl]methylidene}-
3,5-dihydro-4H-imidazol-4-one
a) (5Z)-2-[(cyclopropylmethyl)amino]-5-{ [5-(4-
piperazin-1-ylphenyl)-1H-pyrrolo[2,3-b]pyridin-3-
yl]methylidene}-3,5-dihydro-4H-imidazol-4-one can be
prepared as follows:
Stir 140 mg of 1,1-dimethylethyl 4-(4-{3-[(Z)-{2-
[(cyclopropylmethyl)amino]-5-oxo-1,5-dihydro-4H-
imidazol-4-ylidene}methyl]-1H-pyrrolo[2,3-b]pyridin-5-
yl}phenyl)piperazine-1-carboxylate in 3 cm3 of a 4M
solution of hydrochloric acid in dioxan for two hours
at room temperature. The resultant precipitate is
filtered, then purified on 5 g of column SCX with
elution with methanol then with a 2M solution of
ammonia in methanol, to obtain 22 mg of(5Z)-2-
[(cyclopropylmethyl)amino]-5-{[5-(4-piperazin-1-

ylphenyl)-1H-pyrrolo[2,3-b]pyridin-3-yl]methylidene}-
3,5-dihydro-4H-imidazol-4-one in the form of a yellow
powder with the following physical characteristics:
1H-NMR spectrum at 400 MHz: 0.25(m, 2H); 0.45(m, 2H);
1.12(m, 1H) ; 2.91(m, 4H) ; 3.13(m, 4H) ; from 3.20 to
3.40(m partially masked, 2H) ; 6.69(s, 1H) ; 7.01(d, J
= 8.5 Hz, 2H) ; 7.15(m spread out, 1H) ; 7.61(d, J =
8.5 Hz, 2H) ; 8.13(s, 1H) ; 8.48(d, J = 1.5 Hz, 1H) ;
9.05(s broad, 1H) ; 10.35(m spread out,lH); 11.95(s
broad, 1H).
HPLC-MS-DAD-ELSD: 442(+) =(M+H)(+).
b) 1,1-dimethylethyl 4-(4-{3-[(Z)-{2-
[(cyclopropylmethyl)amino]-5-oxo-1,5-dihydro-4H-
imidazol-4-ylidene}methyl]-1H-pyrrolo[2,3-b]pyridin-5-
yl}phenyl)piperazine-1-carboxylate can be prepared as
in Example 52, but from 80 mg of(5Z)-5-[(5-bromo-1H-
pyrrolo[2,3-b]pyridin-3-yl)methylene]-2-
[(cyclopropylmethyl)amino]-3,5-dihydro-4H-imidazol-4-
one(Example 33) in 2.4 cm3 of dioxan and 0.8 cm3 of
water, 100 mg of (4-{4-[(1,1-
dimethylethoxy)carbonyl]piperazin-1-yl}phenyl)boronic
acid, 2 80 mg of caesium carbonate and 15 mg of 1,1'-
bis(diphenylphosphino)ferrocenedichloropalladium(II).
110 mg of 1,1-dimethylethyl 4-(4-{3-[(Z)-{2-
[(cyclopropylmethyl)amino]-5-oxo-l,5-dihydro-4H-
imidazol-4-ylidene}methyl]-1H-pyrrolo[2,3-b]pyridin-5-
yl}phenyl)piperazine-1-carboxylate is obtained in the
form of powder with the following physical
characteristics:
1H-NMR spectrum at 400 MHz: 0.25(s broad, 2H) ; 0.44(s
broad, 2H); 1.12(s broad, 1H); 1.45(s, 9H); 3.17(m,
4H) ; 3.27(partially masked, 2H) ; 3.49(m, 4H) ; 6.68

(s, 1H); 7.06(d broad, J = 7.8 Hz, 2H); 7.17(s broad,
1H) ; 7.64(d broad, J = 7.8 Hz, 2H) ; 8.14(s, 1H) ; 8.49
(s, 1H); 9.05(s broad, 1H); 10.40(s broad, 1H); 11.94(s broad, 1H).
Rf: 0.24(dichloromethane/ethyl acetate eluent 90/10) .
LC-MS-DAD-ELSD: 540(-) =(M-H)(-); 542(+) =(M+H)(+) .
Example 54
(5Z)-5-[(5-benzyl-1H-pyrrolo[2,3-b]pyridin-3-
yl)methylidene]-2-[(cyclopropylmethyl)amino]-3,5-
dihydro-4H-imidazol-4-one
(5Z)-5-[(5-benzyl-1H-pyrrolo[2,3-b]pyridin-3-
yDmethylidene]-2-[(cyclopropylmethyl) amino]-3,5-
dihydro-4H-imidazol-4-one can be prepared as in Example
7, but from 60 mg of(5Z)-5-[(5-benzyl-1H-pyrrolo [2,3-
b]pyridin-3-yl)methylidene]-2-thioxoimidazolidin-4-one
(Example 23) , 1 cm3 of ethanol and 13 mg of 1-
cyclopropylinethanamine. After thirty minutes at a
temperature of 160°C under microwave irradiation, then
filtration of the solid, 31 mg of(5Z)-5-[(5-benzyl-1H-
pyrrolo[2,3-b]pyridin-3-yl)methylidene]-2-
[(cyclopropylmethyl)amino]-3,5-dihydro-4H-imidazol-4-
one is obtained in the form of a yellow powder with the
following characteristics:
Melting point: 315-318°C.
1H-NMR spectrum at 400 MHz: 0.28(m, 2H); 0.47(m, 2H);
1.14(m, 1H); 3.21(m, 2H); 4.03(s, 2H); 6.56(s, 1H);
from 7.11 to 7.33(m, 5H) ; 8.11(s, 1H) ; 8.18(s, 1H) ;
8.58(s, 1H); 10.1(m spread out, 1H); 11.85(m spread
out, 1H).
UPLC-MS-DAD-ELSD: 372(+) =(M+H)(+) ; 370(-) =(M-H)(-).

Example 55
(5Z)-2-amino-3-[3-(dimethylamino)propyl]-5-(1H-
pyrrolo[2,3-b]pyridin-3-ylmethylidene)-3,5-dihydro-4H-
imidazol-4-one
(5Z)-2-amino-3-[3-(dimethylamino)propyl]-5-(1H-
pyrrolo[2,3-b]pyridin-3-ylmethylidene)-3,5-dihydro-4H-
imidazol-4-one can be prepared as in Example 7, but
from 351 mg of(5Z)-5-[(1H-pyrrolo[2,3-b]pyridin-3-
yl)methylene]-2-thioxoimidazolidin-4-one(Example 1),
2.5 cm3 of ethanol and 1.47 g of 3-dimethylamino-
propylamine. After thirty minutes at a temperature of
150°C under microwave irradiation, then concentrating
under vacuum and taking up the residue in methylene
chloride, filtration of the solid gives 8 mg of(5Z)-2-
amino-3-[3-(dimethylamino)propyl]-5-(1H-pyrrolo[2,3-
b]pyridin-3-ylmethylidene)-3,5-dihydro-4H-imidazol-4-
one in the form of a yellow powder with the following
characteristics:
XH-NMR spectrum at 400 MHz: 1.67(m, 2H); 2.12(s, 6H) ;
2.20(t, J = 7.0 Hz, 2H) ; 3.56(t, J = 7.0 Hz, 2H) ;
6.71(s, 1H) ; 7.11(dd, J = 5.0 and 8.0 Hz, 1H) ; 7.33
(s broad, 2H); 8.24(m, 2H); 8.59(dd, J = 1.5 and 8.0
Hz, 1H) ; 12.0(s broad, 1H).
UPLC-MS-DAD-ELSD: 313(+) =(M+H)(+); 311(-) =(M-H)(-).
Example 56
(5Z)-2-amino-3-(3-morpholin-4-ylpropyl)-5-(1H-
pyrrolo[2,3-b]pyridin-3-ylmethylidene)-3,5-dihydro-4H-
imidazol-4-one
(5Z)-2-amino-3-(3-morpholin-4-ylpropyl)-5-(1H-
pyrrolo[2,3-b]pyridin-3-ylmethylidene)-3,5-dihydro-4H-
imidazol-4-one can be prepared as in Example 7, but

from 310 mg of(5Z)-5-[(1H-pyrrolo[2,3-b]pyridin-3-
yl) methylene]-2-thioxoimidazolidin-4-one(Example 1),
2.5 cm3 of ethanol and 310 mg of 3-
morpholinopropylamine. After fifty minutes at a
temperature of 160°C under microwave irradiation, then
filtration of the solid, 86 mg of(5Z)-2-amino-3-(3 -
morpholin-4-ylpropyl)-5-(1H-pyrrolo[2,3-b]pyridin-3-
ylmethylidene)-3,5-dihydro-4H-imidazol-4-one is
obtained in the form of a yellow powder with the
following characteristics:
1H-NMR spectrum at 400 MHz: 1.67(m, 2H) ; 2.2-2.4(m,
6H) ; 3.6(m, 6H) ; 6.7(s, 1H) ; 7.15(dd, J = 5.0 and
8.0 Hz, 1H) ; 7.35(s broad, 2H) ; 8.25(m, 2H) ; 8.6(dd,
J = 1.5 and 8.0 Hz, 1H); 12.0(s broad, 1H).
HPLC-MS-DAD-ELSD: 355(+) =(M+H)(+).
Example 57
(5Z)-2-amino-3-(3-ethoxypropyl)-5-(1H-pyrrolo[2,3-
b]pyridin-3-ylmethylidene)-3,5-dihydro-4H-imidazol-4-
one
(5Z)-2-amino-3-(3-ethoxypropyl)-5-(1H-pyrrolo[2,3-
b]pyridin-3-ylmethylidene)-3,5-dihydro-4H-imidazol-4-
one can be prepared as in Example 7, but from 350 mg of
(5Z)-5-[(1H-pyrrolo[2,3-b]pyridin-3-yl)methylene]-2-
thioxoimidazolidin-4-one(Example 1), 2.5 cm3 of
ethanol and 3 50 mg of 3-ethoxypropyl amine. After fifty
minutes at a temperature of 160°C under microwave
irradiation, then filtration of the solid, 28 mg of
(5Z)-2-amino-3-(3-ethoxypropyl)-5-(1H-pyrrolo[2,3-
b]pyridin-3-ylmethylidene)-3,5-dihydro-4H-imidazol-4-
one is obtained in the form of a yellow powder with the
following characteristics:

1H-NMR spectrum at 400 MHz: 1.12(t, J = 7 Hz, 3H) ;
1.67'(m, 2H) ; 3.3-3.5(m, 4H) ; 3.65(t, J = 7 Hz, 2H) ;
6.72(s, 1H) ; 7.15(dd, J = 5.0 and 8.0 Hz, 1H) ; 7.25
(s broad, 2H); 8.25(s broad, 2H); 8.6(dd, J = 1.5 and
8.0 Hz, 1H); 12.0(s broad, 1H).
HPLC-MS-DAD-ELSD: 314(+) =(M+H)(+); 312(-) =(M-H)(-).
Example 5 8
(5Z)-2-amino-3-(3-pyrrolidin-1-ylpropyl)-5-(1H-
pyrrolo[2,3-b]pyridin-3-ylmethylidene)-3,5-dihydro-4H-
imidazol-4-one
(5Z)-2-amino-3-(3-pyrrolidin-1-ylpropyl)-5-(1H-
pyrrolo[2,3-b]pyridin-3-ylmethylidene)-3,5-dihydro-4H-
imidazol-4-one can be prepared as in Example 7, but
from 366 mg of(5Z)-5-[(1H-pyrrolo[2,3-b]pyridin-3-
yl)methylene]-2-thioxoimidazolidin-4-one(Example 1),
2.5 cm3 of ethanol and 1.92 g of 3-(1-
pyrrolidyl)propylamine. After fifty minutes at a
temperature of 160°C under microwave irradiation, then
filtration of the solid, 58 mg of(5Z)-2-amino-3-(3-
pyrrolidin-1-ylpropyl)-5-(1H-pyrrolo[2,3-b]pyridin-3-
ylmethylidene)-3,5-dihydro-4H-imidazol-4-one is
obtained in the form of a yellow powder with the
following characteristics:
1H-NMR spectrum at 400 MHz: 1.69(m, 6H) ; 2.39(t, J =
6.5 Hz, 2H) ; 2.42(m, 4H) ; 3.59(t, J = 6. 5 Hz, 2H) ;
6.71(s, 1H) ; 7.11(dd, J = 5.0 and 8.0 Hz, 1H) ; 7.40
(s broad, 2H); 8.23(m, 2H); 8.59(d broad, J = 8.0 Hz,
1H); 12.0(m spread out, 1H).
HPLC-MS-DAD-ELSD: 339(+) =(M+H)(+); 337(-) =(M-H)(-).
Example 59

(5Z)-2-[(cyclopropylmethyl)amino]-3-phenyl-5-(1H-
pyrrolo[2,3-b]pyridin-3-ylmethylidene)-3,5-dihydro-4H-
imidazol-4-one
(5Z)-2-[(cyclopropylmethyl)amino]-3-phenyl-5-(1H-
pyrrolo[2,3-b]pyridin-3-ylmethylidene)-3,5-dihydro-4H-
imidazol-4-one can be prepared as in Example 7, but
from 128 mg of(5Z/E)-3-phenyl-5-(1H-pyrrolo[2,3-
b]pyridin-3-ylmethylidene)-2-thioxoimidazolidin-4-one
(Example 24), 3.5 cm3 of ethanol and 284 mg of 1-
cyclopropylmethanamine. After thirty minutes at a
temperature of 160°C under microwave irradiation and
purification by preparative LC-MS [Column Xterra RP18
30x100; 5u; with water buffered with 10 mM of ammonium
hydrogen carbonate adjusted to pH 9 with ammonia /
acetonitrile with gradient from 70/30 to 0/100 in 8
min], 34 mg of(5Z)-2-[(cyclopropylmethyl)amino]-3-
phenyl-5-(1H-pyrrolo[2,3-b]pyridin-3-ylmethylidene)-
3,5-dihydro-4H-imidazol-4-one is obtained in the form
of yellow lyophilizate with the following
characteristics:
1H-NMR spectrum at 400 MHz: 0.31(m, 2H) ; 0.47(m, 2H) ;
1.23(m, 1H) ; 3.30(m partially masked, 2H) ; 6.84(s,
1H) ; 7.00(t, J = 6.0 Hz, 1H) ; 7.13(dd, J = 5.0 and
8.0 Hz, 1H); 7.35(d, J = 7.5 Hz, 2H) ; 7.50(t, J = 7.5
Hz, 1H) ; 7.58(t, J = 7.5 Hz, 2H) ; 8.27(dd, J = 1.5
and 5.0 Hz, 1H) ; 8.31(d, J = 2.0 Hz, 1H) ; 8.67(d
broad, J = 8.0 Hz, 1H); 12.0(s broad, 1H).
HPLC-MS-DAD-ELSD: 358(+) =(M+H)(+); 356(-) =(M-H)(-).
Example 60
(5Z)-5-[(5-chloro-1H-pyrrolo[2,3-b]pyridin-3-
yl)methylidene]-2-(methylsulphanyl)-3,5-dihydro-4H-
imidazol-4-one

(5Z)-5-[(5-chloro-1H-pyrrolo[2,3-b]pyridin-3-
yl)methylidene]-2-(methylsulphanyl)-3,5-dihydro-4H-
imidazol-4-one can be prepared as follows:
Slowly add 0.86 cm3 of a molar solution of sodium
hydroxide to a mixture of 200 mg of(5Z)-5-[(5-chloro-
1H-pyrrolo[2,3-b]pyridin-3-yl)methylene]-2-
thioxoimidazolidin-4-one(Example 3) and 122 mg of
methyl iodide in 7 cm3 of methanol at 0°C. Then stir
the mixture at room temperature for two hours. The
solid that forms is filtered, then dried under vacuum
to obtain 175 mg of(5Z)-5-[(5-chloro-1H-pyrrolo[2,3-
b]pyridin-3-yl)methylidene]-2-(methylsulphanyl)-3,5-
dihydro-4H-imidazol-4-one in the form of yellow powder
with the following characteristics:
Melting point: >410°C
1H-NMR spectrum at 400 MHz: 2.71(s, 3H); 7.03(s, 1H);
8.29(d, J = 2.0 Hz, 1H); 8.37(s, 1H); 9.31(s broad,
1H); from 11.4 to 12.7(m very broad, 2H).
HPLC-MS-DAD-ELSD: 293(+)/...=(M+H)(+) /...; 291(-)/...=(M-H)( -
) /...(1 chlorine atom Cl present).
Example 61
(5Z)-2-(benzylsulphanyl)-5-[(5-chloro-1H-pyrrolo[2,3-
b]pyridin-3-yl)methylidene]-3,5-dihydro-4H-imidazol-4-
one
(5Z)-2-(benzylsulphanyl)-5-[(5-chloro-1H-pyrrolo[2,3-
b]pyridin-3-yl)methylidene]-3,5-dihydro-4H-imidazol-4-
one can be prepared as in Example 60, but from 400 mg
of (5Z)-5-[(5-chloro-1H-pyrrolo[2,3-b]pyridin-3-
yl)methylene]-2-thioxoimidazolidin-4-one(Example 3),
270 mg of benzyl bromide, 14 cm3 of methanol at 0°C and
of 1.8 cm3 of a molar solution of sodium hydroxide.

After two hours at room temperature, the solid formed
is filtered to obtain 452 mg of(5Z)-2-(benzylsulphanyl)-5-[(5-chloro-1H-pyrrolo[2,3-
b]pyridin-3-yl)methylidene]-3,5-dihydro-4H-imidazol-4-
one in the form of yellow powder with the following
characteristics:
Melting point: 313-315°C.
1H-NMR spectrum at 400 MHz: 4.63(s, 2H); 7.10(s, 1H);
from 7.23 to 7.40(m, 3H); 7.51(d broad, J = 7.5 Hz,
2H); 8.29(d, J = 2.5 Hz, 1H); 8.43(s, 1H); 9.20(d, J
= 2.5 Hz, 1H); from 11.6 to 12.7(m very broad, 2H).
HPLC-MS-DAD-ELSD: 3 69(+)/...=(M+H)(+)/...(1 chlorine atom
Cl present).
Example 62
(5Z)-5-[(5-chloro-1H-pyrrolo[2,3-b]pyridin-3-
yl)methylidene]-2-(propylsulphanyl)-3,5-dihydro-4H-
imidazol-4-one
(5Z)-5-[(5-chloro-1H-pyrrolo[2,3-b]pyridin-3-
yl)methylidene]-2-(propylsulphanyl)-3,5-dihydro-4H-
imidazol-4-one can be prepared as in Example 60, but
from 200 mg of(5Z)-5-[(5-chloro-1H-pyrrolo[2,3-
b]pyridin-3-yl)methylene]-2-thioxoimidazolidin-4-one
(Example 3) , 146 mg of iodo-1-propane, 7 cm3 of
methanol at 0°C and 0.86 cm3 of a molar solution of
sodium hydroxide. After stirring at room temperature
overnight, the solid formed is filtered to obtain
172 mg of(5Z)-5-[(5-chloro-1H-pyrrolo[2,3-b]pyridin-3-
yl)methylidene]-2-(propylsulphanyl)-3,5-dihydro-4H-
imidazol-4-one in the form of yellow powder with the
following characteristics:
Melting point: 316-318°C.

1H-NMR spectrum at 400 MHz: 1.05(t, J = 7.6 Hz, 3H);
1.83(sext, J = 7.6 Hz, 2H) ; 3.33(masked, 2H) ; 7.03
(s, 1H) ; 8.2 9(d, J = 2.4 Hz, 1H) ; 8.3 3(s, 1H) ; 9.28
(d, J = 2.4 Hz, 1H); 12.10(s broad, 1H).
Example 63
(5Z)-5-[(5-chloro-1H-pyrrolo[2,3-b]pyridin-3-
yl)methylidene]-2-((1-methyl)ethylsulphanyl)-3,5-
dihydro-4H-imidazol-4-one
(5Z)-5-[(5-chloro-1H-pyrrolo[2,3-b]pyridin-3-
yl)methylidene]-2-((1-methyl)ethylsulphanyl)-3,5-
dihydro-4H-imidazol-4-one can be prepared as in Example
60, but from 200 mg of(5Z)-5-[(5-chloro-1H-
pyrrolo[2,3-b]pyridin-3-yl)methylene]-2-
thioxoimidazolidin-4-one(Example 3), 146 mg of iodo-2-
propane, 7 cm3 of methanol at 0°C and 0.86 cm3 of a
molar solution of sodium hydroxide. The mixture is
stirred at 50 °C overnight then at 70 °C for an extra
day. The solid formed is then filtered to obtain 90 mg
of(5Z)-5-[(5-chloro-1H-pyrrolo[2,3-b]pyridin-3-
yl)methylidene]-2-((1-methyl)ethylsulphanyl)-3,5-
dihydro-4H-imidazol-4-one in the form of yellow powder
with the following characteristics:
Melting point: 291-293°C.
1H-NMR spectrum at 400 MHz: 1.52(d, J = 6.9 Hz, 6H) ;
4.13(m, 1H) ; 7.03(s, 1H) ; 8.29(d, J = 2.4 Hz, 1H) ;
8.32(s, 1H); 9.33(d, J = 2.4 Hz, 1H); 12.05(s broad,
1H).
Example 64
(5Z)-2-butyl-5-[(5-chloro-1H-pyrrolo[2,3-b]pyridin-3-
yl)methylidene]-3,5-dihydro-4H-imidazol-4-one

(5Z)-2-butyl-5-[(5-chloro-1H-pyrrolo[2,3-b]pyridin-3-
yl)methylidene]-3,5-dihydro-4H-imidazol-4-one can be
prepared as in Example 13, but from 131 mg of raw 2-
butyl-imidazolidin-4-one and 135 mg of 5-chloro-1H-
pyrrolo[2,3-b]pyridine-3-carbaldehyde to give 164 mg of
(5Z)-2-butyl-5-[(5-chloro-1H-pyrrolo[2,3-b]pyridin-3-
yl)methylidene]-3,5-dihydro-4H-imidazol-4-one in the
form of a yellow powder with the following
characteristics:
Melting point: 288-290°C.
1H-NMR spectrum at 400 MHz: 0.97(t, J = 7.5 Hz, 3H) ;
1.42(m, 2H) ; 1.78(m, 2H) ; 2.57(t, J = 7.5 Hz, 2H) ;
7.13(s, 1H) ; 8.29(d, J = 2.5 Hz, 1H) ; 8.33(s, 1H) ;
9.38(d, J = 2.5 Hz, 1H) ; 11.1(s broad, 1H) ; 12.5(m
spread out, 1H).
HPLC-MS-DAD-ELSD: 303(+) =(M+H)(+).
Example 65
(5Z)-2-butyl-5-[(6-chloro-1H-pyrrolo[2,3-b]pyridin-3-
yl)methylidene]-3,5-dihydro-4H-imidazol-4-one
(5Z)-2-butyl-5-[(6-chloro-1H-pyrrolo[2,3-b]pyridin-3-
yl)methylidene]-3,5-dihydro-4H-imidazol-4-one can be
prepared as in Example 13, but from 87 mg of raw 2-
butyl-imidazolidin-4-one and 90 mg of 6-chloro-1H-
pyrrolo[2,3-b]pyridine-3-carbaldehyde to give 85 mg of
(5Z)-2-butyl-5-[(6-chloro-1H-pyrrolo[2,3-b]pyridin-3-
yl)methylidene]-3,5-dihydro-4H-imidazol-4-one in the
form of a yellow powder with the following
characteristics:
Melting point: 318-321°C.

1H-NMR spectrum at 400 MHz: 0.94(t, J = 7.5 Hz, 3H);
1.40(m, 2H) ; 1.71(m, 2H) ; 2.54(t, J = 7.5 Hz, 2H) ;
7.13(s, 1H) ; 7.24(d, J = 8.0 Hz, 1H) ; 8.31(s, 1H) ;
9.07(d, J = 8.0 Hz, 1H) ; 11.1(s broad, 1H) ; 12.5(m
spread out, 1H).
SM-EI: 302(+.) =(M)(+.); 260(+) =(M-C3H6)(+).
Example 66
(5Z)-2-butyl-3-methyl-5-(1H-pyrrolo[2,3-b]pyridin-3-
ylmethylidene)-3,5-dihydro-4H-imidazol-4-one
a)(5Z)-2-butyl-3-methyl-5-(1H-pyrrolo[2,3-b]pyridin-3-
ylmethylidene)-3,5-dihydro-4H-imidazol-4-one can be
prepared as in Example 13, but from 0.63 g of 2-butyl-
3-methyl-3,5-dihydro-4H-imidazol-4-one, 200 mg of 1H-
pyrrolo[2,3-b]pyridine-3-carbaldehyde and 0.14 cm3 of
piperidine in 10 cm3 of ethanol. After one hour under
reflux, the mixture is cooled to room temperature and
the yellow solid is filtered, washed with a little
ethanol then dried under vacuum to give 323 mg of(5Z)-
2-butyl-3-methyl-5-(1H-pyrrolo[2,3-b]pyridin-3-
ylmethylidene)-3,5-dihydro-4H-imidazol-4-one in the
form of a yellow powder with the following
characteristics:
Melting point: 220-222°C.
1H-NMR spectrum at 400 MHz: 0.99(t, J = .7.0 Hz, 3H) ;
1.50(m, 2H) ; 1.80(m, 2H) ; 2.68(t, J = 7.0 Hz, 2H) ;
3.10(s, 3H) ; 7.19(dd, J = 5.0 and 8.0 Hz, 1H) ; 7.29
(s, 1H) ; 8.2 9(dd, J = 1.5 and 5.0 Hz, 1H) ; 8.3 8(s,
1H) ; 9.01(d broad, J = 8.0 Hz, 1H) ; 12.4(m spread
out, 1H) .
HPLC-MS-DAD-ELSD: 283(+) =(M+H)(+) ; 281(-) =(M-H)(-).

b) 2-butyl-3-methyl-3,5-dihydro-4H-imidazol-4-one can
be prepared as follows:
Slowly add a 2M solution of methylamine in THF(12 cm3)
to a solution of 1.99 g of N-(1-
methoxypentylidene)methylglycinate in 20 cm3 of
methanol. Stir the mixture at room temperature for
three hours, then concentrate under vacuum to obtain
1.63 g of raw 2-butyl-3-methyl-3,5-dihydro-4H-imidazol-
4-one, which is used as such in the next stage.
c) N-(1-methoxypentylidene)methylglycinate can be
prepared as follows:
Stir a suspension of 2 g of methyl pentanimidoate
hydrochloride and 1.67 g of methyl glycinate
hydrochloride in 2 0 cm3 of methylene chloride at 0°C
for five hours, then add 1.8 cm3 of triethylamine. Stir
the resultant mixture at room temperature for one hour,
dilute with 10 cm3 of phosphate buffer pH 7, then
extract with methylene chloride(3x2 0 cm3) . The
combined organic phases are dried over magnesium
sulphate and concentrated under vacuum to obtain 1.99 g
of N-(1-methoxypentylidene)methylglycinate.
Example 67
(5Z)-2-(2-Phenylethyl)-5-(1H-pyrrolo[2,3-b]pyridin-3-
ylmethylidene)-3,5-dihydro-4H-imidazol-4-one
a)(5Z)-2-(2-phenylethyl)-5-(1H-pyrrolo[2,3-b]pyridin-
3-ylmethylidene)-3,5-dihydro-4H-imidazol-4-one can be
prepared as in Example 13, but from 1 g of raw 2-(2-
phenylethyl)-3,5-dihydro-4H-imidazol-4-one and 0.2 g of
lH-pyrrolo [2,3-b]pyridine-3-carbaldehyde to give 244 mg
of(5Z)-2-(2-phenylethyl)-5-(1H-pyrrolo[2,3-b]pyridin-
3-ylmethylidene)-3,5-dihydro-4H-imidazol-4-one in the

form of a yellow powder with the following
characteristics:
Melting point: 270-272°C.
1H-NMR spectrum at 400 MHz: 2.88(t, J = 7.5 Hz, 2H) ;
3.09(t, J = 7.5 Hz, 2H) ; 7.18(s, 1H) ; 7.20(m, 2H) ;
7.31(m, 4H); 8.29(dd, J = 1.5 and 5.0 Hz, 1H); 8.35
(s, 1H); 8.89(d broad, J = 8.0 Hz, 1H); 11.2(m spread
out, 1H); 12.4(m very broad, 1H).
HPLC-MS-DAD-ELSD: 317(+) =(M+H)(+); 315(-) =(M-H)(-).
b) 2-(2-phenylethyl)-3,5-dihydro-4H-imidazol-4-one can
be prepared as in Example 13, but from 2 g of methyl 3-
phenylpropanimidoate hydrochloride to obtain 2.85 g of
raw 2-(2-phenylethyl)-3,5-dihydro-4H-imidazol-4-one.
c) Methyl 3-phenylpropanimidoate hydrochloride can be
prepared as in Example 13, but from 5 cm3 of 2-
phenylethyl carbonitrile, 1.7 cm3 of methanol and 4 cm3
of ether. 7.5 g of methyl 3-phenylpropanimidoate
hydrochloride is obtained in the form of a white solid.
Example 68
(5Z)-2-(3-methylbutyl)-5-(1H-pyrrolo[2,3-b]pyridin-3-
ylmethylidene)-3,5-dihydro-4H-imidazol-4-one
a)(5Z)-2-(3-methylbutyl)-5-(1H-pyrrolo[2,3-b]pyridin-
3-ylmethylidene)-3,5-dihydro-4H-imidazol-4-one can be
prepared as in Example 13, but from 105 mg of raw 2-(3-
methylbutyl)-3,5-dihydro-4H-imidazol-4-one and 0.2 g of
lH-pyrrolo[2,3-b]pyridine-3-carbaldehyde to give 64 mg
of(5Z)-2-(3-methylbutyl)-5-(1H-pyrrolo[2,3-b]pyridin-
3-ylmethylidene)-3,5-dihydro-4H-imidazol-4-one in the
form of a yellow powder with the following
characteristics:

Melting point: 274°C.
1H-NMR spectrum at 400 MHz: 0.93(d, J = 7.5 Hz, 6H) ;
1.63(m, 3H) ; 2.54(t, J = 7.5 Hz, 2H) ; 7.15(s, 1H) ;
7.19(dd, J = 5.0 and 8.0 Hz, 1H) ; 8.29(dd, J = 1.5
and 5.0 Hz, 1H) ; 8.33(s, 1H) ; 8.91(d broad, J = 8.0
Hz, 1H); 11.05(s broad, 1H); 12.3(s broad, 1H).
HPLC-MS-DAD-ELSD: 283(+) =(M+H)(+); 281(-) =(M-H)(-).
b) 2-(3-Methylbutyl)-3,5-dihydro-4H-imidazol-4-one can
be prepared as in Example 13, but from 3 g of methyl 4-
methyl pentemimidoate hydrochloride to obtain 2.0 g of
raw 2-(3-methylbutyl)-3,5-dihydro-4H-imidazol-4-one.
c) Methyl 4-methyl pentanimidoate hydrochloride can be
prepared as in Example 13, but from 12.5 cm3 of 3-
methylbutyl carbonitrile, 4.6 cm3 of methanol and 5 cm3
of ether. 2 0.7 g of methyl 4-methyl pentanimidoate
hydrochloride is obtained in the form of a white solid.
Example 69
(5Z)-2-cyclohexyl-5-(1H-pyrrolo[2,3-b]pyridin-3-
ylmethylidene)-3,5-dihydro-4H-imidazol-4-one
a)(5Z)-2-cyclohexyl-5-(1H-pyrrolo[2,3-b]pyridin-3-
ylmethylidene)-3,5-dihydro-4H-imidazol-4-one can be
prepared as in Example 13, but from 2 96 mg of raw 2-
cyclohexyl-3,5-dihydro-4H-imidazol-4-one and 0.13 g of
lH-pyrrolo[2,3-b]pyridine-3-carbaldehyde to give 135 mg
of 5Z)-2-cyclohexyl-5-(1H-pyrrolo[2,3-b]pyridin-3-
ylmethylidene)-3,5-dihydro-4H-imidazol-4-one in the
form of a yellow powder with the following
characteristics:
Melting point: 322°C.

1H-NMR spectrum at 400 MHz: from 1.20 to 1.42(m, 3H);
1.53(m, 2H); 1.69(m, 1H); 1.80(m, 2H); 1.99(m, 2H);
2.54(m partially masked, 1H) ; 7.18(s, 1H) ; 7.20(dd,
J = 5.0 and 8.0 Hz, 1H) ; 8.29(dd, J = 1.5 and 5.0 Hz,
1H); 8.34(s, 1H); 8.93(d broad, J = 8.0 Hz, 1H); 11.1
(m spread out, 1H); 12.3(m spread out, 1H).
HPLC-MS-DAD-ELSD: 364(+) =(M+H)(+); 362(-) =(M-H)(-).
b) 2-Cyclohexyl-3,5-dihydro-4H-imidazol-4-one can be
prepared as in Example 13, but from 704 mg of methyl
cyclohexanecarboximidoate hydrochloride to obtain 1.2 g
of raw 2-cyclohexyl-3,5-dihydro-4H-imidazol-4-one.
c) Methyl cyclohexanecarboximidoate hydrochloride is
prepared according to Synlett 2001, 11, 1707-1710.
Gaseous hydrogen chloride is bubbled for 12 0 min in a
solution of 10 cm3 of cyclohexane carbonitrile in
5.4 cm3 of methanol and 3 0 cm3 of heptane cooled to 0°C.
The mixture is stirred for one hour at 0°C then put in
the freezer. After forty-eight hours, the white solid
formed is filtered, washed with heptane, then dried
under vacuum to obtain 12.0 g of methyl
cyclohexanecarboximidoate hydrochloride in the form of
a white solid.
Example 70
(5Z)-2-cyclohexyl-3-methyl-5-(1H-pyrrolo[2,3-b]pyridin-
3-ylmethylidene)-3,5-dihydro-4H-imidazol-4-one
a) (5Z) -2-cyclohexyl-3-methyl-5-(1H-pyrrolo [2,3-
b]pyridin-3-ylmethylidene)-3,5-dihydro-4H-imidazol-4-
one can be prepared as in Example 13, but from 493 mg
of raw 2-cyclohexyl-3-methyl-3,5-dihydro-4H-imidazol-4-
one and- 0.16 g of lH-pyrrolo[2,3-b]pyridine-3-
carbaldehyde to give 144 mg of(5Z)-2-cyclohexyl-3-

methyl-5-(1H-pyrrolo[2,3-b]pyridin-3-ylmethylidene)-
3,5-dihydro-4H-imidazol-4-one in the form of a yellow
powder with the following characteristics:
Melting point: 261-262°C.
1H-NMR spectrum at 400 MHz: from 1.22 to 1.49(m, 3H) ;
1.58(m, 2H); 1.72(m, 1H); 1.83(m, 2H); 1.99(m, 2H) ;
2.71(tt, J = 3.5 and 11.0 Hz, 1H) ; 3.13(s, 3H) ; 7.21
(dd, J = 5.0 and 8.0 Hz, 1H); 7.30(s, 1H); 8.30(dd, J
= 1.5 and 5.0 Hz, 1H) ; 8.3 9(s, 1H) ; 8.99(d broad, J =
8.0 Hz, 1H); 12.4(m spread out, 1H).
UPLC-MS-DAD-ELSD: 309(+) =(M+H)(+) .
b) 2-cyclohexyl-3-methyl-3,5-dihydro-4H-imidazol-4-one
can be prepared as in Example 66, but from 1 g of N-
[cyclohexyl(methoxy)methylidene]methylglycinate to
obtain 1.07 g of 2-cyclohexyl-3-methyl-3,5-dihydro-4H-
imidazol-4-one.
c) N-[cyclohexyl(methoxy)methylidene]methylglycinate
can be prepared as in Example 66, but from 1 g of
methyl cyclohexanecarboximidoate hydrochloride and
0.71 g of methyl glycinate hydrochloride to obtain
1.09 g of N-
[cyclohexyl(methoxy)methylidene]methylglycinate.
Example 71
(5Z)-5-(1H-pyrrolo[2,3-b]pyridin-3-ylmethylidene)-2-
(tetrahydro-2H-pyran-4-yl)-3, 5-dihydro-4H-imidazol-4-
one
a)(5Z)-5-(1H-pyrrolo[2,3-b]pyridin-3-ylmethylidene)-2-
(tetrahydro-2H-pyran-4-yl)-3,5-dihydro-4H-imidazol-4-
one can be prepared as in Example 13, but from 690 mg
of raw 2-(tetrahydro-2H-pyran-4-yl)-3,5-dihydro-4H-

imidazol-4-one and 0.2g of 1H-pyrrolo[2,3-b]pyridine-3-
carbaldehyde to give 283 mg of(5Z)-5-(1H-pyrrolo [2,3-
b]pyridin-3-ylmethylidene)-2-(tetrahydro-2H-pyran-4-
yl)-3,5-dihydro-4H-imidazol-4-one in the form of a
yellow powder with the following characteristics:
Melting point: 317-319°C.
1H-NMR spectrum at 400 MHz: 1.79(m, 2H) ; 1.91(m, 2H) ;
2.82(tt, J = 3.5 and 11.0 Hz, 1H); 3.45(m, 2H); 3.94
(m, 2H) ; 7.20(m, 2H) ; 8.29(dd, J = 1.5 and 5.0 Hz,
1H); 8.36(s, 1H); 8.95(d broad, J = 8.0 Hz, 1H); 11.2
(s broad, 1H); 12.4(s broad, 1H).
HPLC-MS-DAD-ELSD: 297(+) =(M+H)(+); 295(-) =(M-H)(-).
b) 2-(tetrahydro-2H-pyran-4-yl)-3, 5-dihydro-4H-
imidazol-4-one can be prepared as in Example 13, but
from 2 g of methyl tetrahydro-2H-pyran-4-carboximidoate
hydrochloride to obtain 3.2 g of raw 2-(tetrahydro-2H-
pyran-4-yl)-3,5-dihydro-4H-imidazol-4-one.
c) Methyl tetrahydro-2H-pyran-4-carboximidoate can be
prepared as in Example 13, but from 3 g of
tetrahydropyran-4-carbonitrile, 1.2 cm3 of methanol and
6 cm3 of ether. 4.4 g of methyl tetrahydro-2H-pyran-4-
carboximidoate hydrochloride is obtained in the form of
a white solid.
d) Tetrahydropyran-4-carbonitrile can be prepared as
follows:
Slowly add 10 cm3 of thionyl chloride to 3 g of
tetrahydropyran-4-carboxamide cooled on an ice bath.
Heat the mixture at 80 °C for two hours, then
concentrate under vacuum. Take up the residue in 20 cm3
of water and adjust the pH of the solution to pH 7 with

potassium hydroxide. Extract the aqueous phase with
ethyl acetate(4x5 0 cm3). The combined organic phases
are washed with water(2x50 cm3), dried over magnesium
sulphate, and then concentrated under vacuum to obtain
2.47 g of tetrahydropyran-4-carbonitrile.
e) Tetrahydropyran-4-carboxamide is prepared according
to J. Chem. Soc. 1930, 2525-2530.
Example 72
(5Z)-5-[(1H-pyrrolo[2,3-b]pyridin-3-yl)methylidene]-3-
methyl-2-(tetrahydro-2H-pyran-4-yl)-3,5-dihydro-4H-
imidazol-4-one
a) (5Z)-5-[(1H-pyrrolo [2,3-b]pyridin-3-yl)methylidene]-
3-methyl-2-(tetrahydro-2H-pyran-4-yl)-3,5-dihydro-4H-
imidazol-4-one can be prepared as in Example 13, but
from 748 mg of raw 2-(tetrahydro-2H-pyran-4-yl)-3-
methyl-imidazolidin-4-one and 0.2 g of 1H-pyrrolo[2,3-
b] pyridine-3-carbaldehyde, to give 193 mg of(5Z)-5-
[(1H-pyrrolo[2,3-b]pyridin-3-yl)methylidene]-3-methyl-
2-(tetrahydro-2H-pyran-4-yl)-3,5-dihydro-4H-imidazol-4-
one in the form of a yellow powder with the following
characteristics:
Melting point: 283-285°C.
1H-NMR spectrum at 400 MHz: from 1.53 to 1.93(m, 4H) ;
3.03(m, 1H); 3.16(s, 3H); 3.51(m, 2H); 3.99(m, 2H);
7.21(dd, J = 5.0 and 8.0 Hz, 1H) ; 7.32(s, 1H) ; 8.29
(dd, J = 1.5 and 5.0 Hz, 1H) ; 8.39(s, 1H) ; 9.01(d
broad, J = 8.0 Hz, 1H); 12, 3(m spread out, 1H).
HPLC-MS-DAD-ELSD: 311(+) =(M+H)(+); 309(-) =(M-H)(-).
b) 2-(tetrahydro-2H-pyran-4-yl)-3-methyl-imidazolidin-
4-one can be prepared as in Example 66, but from 2.55 g

of N-[methoxy(tetrahydro-2H-pyran-4-
yl)methylidene]methylglycinate, to obtain 2.03 g of 2-
(tetrahydro-2H-pyran-4-yl)-3-methyl-imidazolidin-4-one.
c) N-[methoxy(tetrahydro-2H-pyran-4-
yl)methylidene]methylglycinate can be prepared as in
Example 66, but from 2 g of methyl tetrahydro-2H-pyran-
4-carboximidoate hydrochloride and 1.41 g of methyl
glycinate hydrochloride, to obtain 2.55 g of N-
[methoxy(tetrahydro-2H-pyran-4-
yl) methylidene]methylglycinate.
Example 73
(5Z)-5-[(5-chloro-1H-pyrrolo[2,3-b]pyridin-3-
yl)methylidene]-3-methyl-2-(tetrahydro-2H-pyran-4-yl)-
3,5-dihydro-4H-imidazol-4-one
(5Z)-5-[(5-chloro-1H-pyrrolo[2,3-b]pyridin-3-
yl)methylidene]-3-methyl-2-(tetrahydro-2H-pyran-4-yl)-
3,5-dihydro-4H-imidazol-4-one can be prepared as in
Example 13, but from 303 mg of raw 2-(tetrahydro-2H-
pyran-4-yl)-3-methyl-imidazolidin-4-one(Example 72)
and 0.1 g of 5-chloro-1H-pyrrolo[2,3-b]pyridine-3-
carbaldehyde to give 130 mg of(5Z)-5-[(5-chloro-1H-
pyrrolo[2,3-b]pyridin-3-yl)methylidene]-3-methyl-2-
(tetrahydro-2H-pyran-4-yl)-3,5-dihydro-4H-imidazol-4-
one in the form of a yellow powder with the following
characteristics:
Melting point: 338°C.
1H-NMR spectrum at 400 MHz: from 1.75 to 1.97 (m, 4H) ;
3.06(m, 1H); 3.17(s, 3H); 3.52(m, 2H); 3.99 (m, 2H);
7.31(s, 1H) ; 8.29(d, J = 2.0 Hz, 1H) ; 8.39 (s, 1H) ;
9.48(s broad, 1H); 12.65(m spread out, 1H).

HPLC-MS-DAD-ELSD: 345(+)/...=(M+H)(+) /...; 343(-)/...=(M-H)( -
)/...(1 chlorine atom Cl present).
Example 74
(5Z)- 2 -(2-methylpropyl)-5-(1H-pyrrolo[2,3-b]pyridin-3 -
ylmethylidene)-3,5-dihydro-4H-imidazol-4-one
a) (5Z)-2-(2-methylpropyl)-5-(1H-pyrrolo[2,3-b]pyridin-
3-ylmethylidene)-3,5-dihydro-4H-imidazol-4-one can be
prepared as in Example 13, but from 575 mg of raw 2-(2-
methylpropyl)-3,5-dihydro-4H-imidazol-4-one and 0.2 g
of lH-pyrrolo[2,3-b]pyridine-3-carbaldehyde to give
99 mg of(5Z)-2-(2-methylpropyl)-5-(1H-pyrrolo [2,3 -
b] pyridin-3-ylmethylidene)-3,5-dihydro-4H-imidazol-4-
one in the form of a yellow powder with the following
characteristics:
Melting point: 292-293°C.
1H-NMR spectrum at 400 MHz: 1.00(d, J = 7.0 Hz, 6H) ;
2.18 (m, 1H) ; 2.41(d, J = 7.0 Hz, 2H) ; 7.17(s, 1H) ;
7.18 (dd, J = 5.0 and 8.0 Hz, 1H) ; 8.29(dd, J = 1.5
and 5.0 Hz, 1H) ; 8.34(s, 1H) ; 8.89(d broad, J = 8.0
Hz, 1H); 11.1(s broad, 1H); 12.35(m spread out, 1H).
HPLC-MS-DAD-ELSD: 269(+) =(M+H)(+); 267(-) =(M-H)(-).
b) 2-(2-methylpropyl)-3,5-dihydro-4H-imidazol-4-one can
be prepared as in Example 13, but from 2 g of methyl 3-
methylbutanimidoate hydrochloride to obtain 1.5 g of
raw 2-(2-methylpropyl)-3,5-dihydro-4H-imidazol-4-one.
c) Methyl 3-methylbutanimidoate hydrochloride can be
prepared as in Example 13, but from 3.1 cm3 of 2-
methyl-propyl carbonitrile, 1.3 cm3 of methanol and
4 cm3 of ether. 4.0 g of methyl 3-methylbutanimidoate
hydrochloride is obtained in the form of a white solid.

Example 75
(5Z)-3-methyl-2-(2-methylpropyl)-5-(1H-pyrrolo[2,3-
b]pyridin-3-ylmethylidene)-3,5-dihydro-4H-imidazol-4-
one
a)(5Z)-3-methyl-2-(2-methylpropyl)-5-(1H-pyrrolo[2,3-
b]pyridin-3-ylmethylidene)-3,5-dihydro-4H-imidazol-4-
one can be prepared as in Example 13, but from 466 mg
of raw 3-methyl-2-(2-methylpropyl)-3,5-dihydro-4H-
imidazol-4-one and 0.17 g of lH-pyrrolo[2,3-b]pyridine-
3-carbaldehyde, to give 82 mg of(5Z) -3-methyl-2-(2-
methylpropyl)-5-(1H-pyrrolo[2,3-b]pyridin-3-
ylmethylidene)-3,5-dihydro-4H-imidazol-4-one in the
form of a yellow powder with the following
characteristics:
Melting point: 201°C.
1H-NMR spectrum at 400 MHz: 1.07(d, J = 7.5 Hz, 6H) ;
2.27(m, 1H) ; 2.56(d, J = 7.5 Hz, 2H) ; 3.10(s, 3H) ;
7.19(dd, J = 5.0 and 8.0 Hz, 1H) ; 7.29(s, 1H) ; 8.29
(dd, J = 1.5 and 5.0 Hz, 1H) ; 8.38(s, 1H) ; 8.98(d
broad, J = 8.0 Hz, 1H); 12.4(m spread out, 1H).
UPLC-MS-DAD-ELSD: 283(+) =(M+H)(+); 281(-) =(M-H)(-).
b) 3-methyl-2-(2-methylpropyl)-3,5-dihydro-4H-imidazol-
4-one can be prepared as in Example 66, but from 1.16 g
of N-(1-methoxy-3-methylbutylidene)methylglycinate, to
obtain 901 mg of 3-methyl-2-(2-methylpropyl)-3,5-
dihydro-4H-imidazol-4-one.
c) N-(1-methoxy-3-methylbutylidene)methylglycinate can
be prepared CLS in Example 66, but from 959 mg of methyl
3-methylbutanimidoate hydrochloride and 8 02 mg of
methyl glycinate hydrochloride to obtain 1.18 g of N-
(1-methoxy-3-methylbutylidene)methylglycinate.

Example 76
(5Z)-5-[(5-chloro-1H-pyrrolo[2,3-b]pyridin-3-
yl)methylidene]-3-methyl-2-(2-methylpropyl)-3,5-
dihydro-4H-imidazol-4-one
(5Z)-5-[(5-chloro-1H-pyrrolo[2,3-b]pyridin-3-
yl)methylidene]-3-methyl-2-(2-methylpropyl)-3,5-
dihydro-4H-imidazol-4-one can be prepared as in Example
13, but from 420 mg of raw 3-methyl-2-(2-methylpropyl)-
3,5-dihydro-4H-imidazol-4-one(Example 75) and 0.2 g of
5-chloro-1H-pyrrolo[2,3-b]pyridine-3-carbaldehyde to
give 220 mg of(5Z)-5-[(5-chloro-1H-pyrrolo[2,3-
b]pyridin-3-yl)methylidene]-3-methyl-2-(2-
methylpropyl)-3,5-dihydro-4H-imidazol-4-one in the form
of a yellow powder with the following characteristics :
Melting point: 282°C.
1H-NMR spectrum at 400 MHz: 1.11(d, J = 7.5 Hz, 6H) ;
2.33(m, 1H) ; 2.59(d, J = 7.0 Hz, 2H) ; 3.10(s, 3H) ;
7.29(s, 1H) ; 8.30(d, J = 2.0 Hz, 1H) ; 8.38(s, 1H) ;
9.46(d broad, J = 2.0 Hz, 1H) ; 12.6(m spread out,
1H) .
HPLC-MS-DAD-ELSD: 317(+)/...=(M+H)(+)/...; 315(-)/...=(M-H)( -
)/...(1 chlorine atom Cl present) .
Example 77
(5Z)-2-(cyclopropylmethyl)-5-(1H-pyrrolo[2,3-b]pyridin-
3-ylmethylidene)-3,5-dihydro-4H-imidazol-4-one
a) (5Z)-2-(cyclopropylmethyl)-5-(1H-pyrrolo[2,3-
b]pyridin-3-ylmethylidene)-3,5-dihydro-4H-imidazol-4-
one can be prepared as in Example 13, but from 354 mg
of raw 2-(cyclopropylmethyl)-3,5-dihydro-4H-imidazol-4-
one and 0.2 g of 1H-pyrrolo[2,3-b]pyridine-3-
carbaldehyde to give 142 mg of(5Z) -2-

(cyclopropylmethyl)-5-(1H-pyrrolo[2,3-b]pyridin-3-
ylmethylidene)-3,5-dihydro-4H-imidazol-4-one in the
form of a yellow powder with the following
characteristics:
Melting point: 289°C.
1H-NMR spectrum at 400 MHz: 0.29(m, 2H) ; 0.55(m, 2H) ;
1.14(m, 1H) ; 2.45(d, J = 7.5 Hz, 2H) ; 7.19(m, 2H) ;
8.29(dd; J = 1.5 and 5.5 Hz, 1H) ; 8.34(s, 1H) ; 8.98
(dd, J = 1.5 and 8.0 Hz, 1H); 11.1(s broad, 1H); 12.35
(m spread out, 1H).
HPLC-MS-DAD-ELSD: 267(+) =(M+H)(+); 265(-) =(M-H)(-).
b) 2-(cyclopropylmethyl)-3,5-dihydro-4H-imidazol-4-one
can be prepared as in Example 13, but from 2 g of
methyl 2-cyclopropylethanimidoate hydrochloride to
obtain 2.5 g of raw 2-(cyclopropylmethyl)-3,5-dihydro-
4H-imidazol-4-one.
c) Methyl 2-cyclopropylethanimidoate hydrochloride can
be prepared as in Example 13, but from 10 cm3 of
cyclopropylmethyl carbonitrile, 4.7 cm3 of methanol and
10 cm3 of ether. 18.2 g of methyl 2-
cyclopropylethanimidoate hydrochloride is obtained in
the form of a white solid.
Example 78
(5Z)-2-(cyclopropylmethyl)-5-(5-chloro-1H-pyrrolo[2,3-
b]pyridin-3-ylmethylidene)-3,5-dihydro-4H-imidazol-4-
one
(5Z)-2-(cyclopropylmethyl)-5-(5-chloro-1H-pyrrolo[2,3-
b]pyridin-3-ylmethylidene)-3,5-dihydro-4H-imidazol-4-
one can be prepared as in Example 13, but from 144 mg
of raw 2-(cyclopropylmethyl)-3,5-dihydro-4H-imidazol-4-

one(Example 77) and 0.1 g of 5-chloro-1H-pyrrolo [2,3 -
b]pyridine-3-carbaldehyde to give 47 mg of(5Z)-2-
(cyclopropylmethyl)-5-(5-chloro-1H-pyrrolo[2,3-
b]pyridin-3-ylmethylidene)-3,5-dihydro-4H-imidazol-4-
one in the form of a yellow powder with the following
characteristics:
Melting point: 295-296°C.
1H-NMR spectrum at 400 MHz: 0.30(m, 2H) ; 0.60(m, 2H) ;
1.17(m, 1H) ; 2.48(m partially masked, 2H) ; 7.17(s,
1H) ; 8.29(d, J = 2.0 Hz, 1H) ; 8.35(s, 1H) ; 9.42(s
broad, 1H) ; 11.15(s broad, 1H) ; 12.5(m spread out,
1H) .
HPLC-MS-DAD-ELSD: 301(+)/...=(M+H)(+)/...; 299(-)/...=(M-H)( -
)/...(1 chlorine atom Cl present) .
Example 79
(5Z)-2-(1-methylethyl)-5-(1H-pyrrolo[2,3-b]pyridin-3-
ylmethylidene)-3,5-dihydro-4H-imidazol-4-one
a)(5Z)-2-(1-methylethyl)-5-(1H-pyrrolo[2,3-b]pyridin-
3-ylmethylidene)-3,5-dihydro-4H-imidazol-4-one can be
prepared as in Example 13, but from 324 mg of raw 2-(1-
methylethyl)-3,5-dihydro-4H-imidazol-4-one and 0.2 g of
lH-pyrrolo[2,3-b]pyridine-3-carbaldehyde, to give
140 mg of(5Z)-2-(1-methylethyl)-5-(1H-pyrrolo[2,3-
b]pyridin-3-ylmethylidene)-3,5-dihydro-4H-imidazol-4-
one in the form of a yellow powder with the following
characteristics:
Melting point: 309-310°C.
1H-NMR spectrum at 400 MHz: 1.29(d, J = 7.0 Hz, 6H) ;
2.81(m, 1H) ; 7.18(s, 1H) ; 7.20(dd, J = 5.0 and 8.0
Hz, 1H) ; 8.29(dd, J = 1.5 and 5.0 Hz, 1H) ; 8.34(s,

1H) ; 8.98(d broad, J = 8.0 Hz, 1H) ; 11.15(m spread
out, 1H); 12.35(m spread out, 1H).
HPLC-MS-DAD-ELSD: 255(+) =(M+H)(+); 253(-) =(M-H)(-).
b) 2-(1-methylethyl)-3,5-dihydro-4H-imidazol-4-one can
be prepared as in Example 13, but from 2 g of methyl 2-
methylpropanimidoate hydrochloride to obtain 1.5 g of
raw 2-(1-methylethyl)-3,5-dihydro-4H-imidazol-4-one.
c) Methyl 2-methylpropanimidoate hydrochloride can be
prepared as in Example 13, but from 10 cm3 of isopropyl
carbonitrile, 5 cm3 of methanol and 10 cm3 of ether.
17 g of methyl 2-methylpropanimidoate hydrochloride is
obtained in the form of a white solid.
Example 80
(5Z)-2-(1-methylethyl)-5-(5-chloro-1H-pyrrolo[2,3-
b]pyridin-3-ylmethylidene)-3,5-dihydro-4H-imidazol-4-
one
(5Z)-2-(1-methylethyl)-5-(5-chloro-1H-pyrrolo[2,3-
b]pyridin-3-ylmethylidene)-3,5-dihydro-4H-imidazol-4-
one can be prepared as in Example 13, but from 131 mg
of raw 2-(1-methylethyl)-3,5-dihydro-4H-imidazol-4-one
(Example 79) and 0.1 g of 5-chloro-1H-pyrrolo[2,3-
b]pyridine-3-carbaldehyde to give 116 mg of(5Z)-2-(1-
methylethyl)-5-(5-chloro-1H-pyrrolo[2,3-b]pyridin-3-
ylmethylidene)-3,5-dihydro-4H-imidazol-4-one in the
form of a yellow powder with the following
characteristics:
Melting point: 277-280°C.
1H-NMR spectrum at 400 MHz: 1.30(d, J = 7.5 Hz, 6H) ;
2.81(m, 1H) ; 7.15(s, 1H) ; 8.29(d, J = 2.0 Hz, 1H) ;

8.32(s, 1H); 9.47(d broad, J = 2.0 Hz, 1H); 11.15(s
broad, 1H); 12.55(m spread out, 1H).
HPLC-MS-DAD-ELSD: 289(+)/...=(M+H)(+)/...; 287(-)/...=(M-H)(-
)/...(1 chlorine atom Cl present) .
Example 81
(5Z)-3-methyl-2-(1-methylethyl)-5-(1H-pyrrolo[2,3-
b]pyridin-3-ylmethylidene)-3,5-dihydro-4H-imidazol-4-
one
a)(5Z)-3-methyl-2-(1-methylethyl)-5-(1H-pyrrolo[2,3-
b]pyridin-3-ylmethylidene)-3,5-dihydro-4H-imidazol-4-
one can be prepared as in Example 13, but from 437 mg
of raw 3-methyl-2-(1-methylethyl)-3,5-dihydro-4H-
imidazol-4-one and 0.19 g of lH-pyrrolo[2,3-b]pyridine-
3-carbaldehyde to give 163 mg of(5Z)-3-methyl-2-(1-
methylethyl)-5-(1H-pyrrolo[2,3-b]pyridin-3-
ylmethylidene)-3,5-dihydro-4H-imidazol-4-one in the
form of a yellow powder with the following
characteristics:
Melting point: 222-224°C.
1H-NMR spectrum at 400 MHz: 1.31(d, J = 7.0 Hz, 6H) ;
3.02(m, 1H) ; 3.15(s, 3H) ; 7.20(dd, J = 5.0 and 8.0
Hz, 1H) ; 7.31(s, 1H) ; 8.2 9(dd, J = 1.5 and 5.0 Hz,
1H) ; 8.3 9(s, 1H); 9.05(d broad, J = 8.0 Hz, 1H) ; 12.4
(m spread out, 1H).
HPLC-MS-DAD-ELSD: 269(+) =(M+H)(+) ; 267(-) =(M-H)(-).
b) 3-methyl-2-(1-methylethyl)-3,5-dihydro-4H-imidazol-
4-one can be prepared as in Example 66, but from 1 g of
N-(1-methoxy-2-methylpropylidene)methylglycinate, to
obtain 789 mg of 3-methyl-2-(1-methylethyl)-3,5-
dihydro-4H-imidazol-4-one.

c) N-(1-methoxy-2-methylpropylidene)methylglycinate can
be prepared as in Example 66, but from 870 mg of methyl
2-methylpropanimidoate hydrochloride and 802 mg of
methyl glycinate hydrochloride to obtain 1 g of N-(1-
methoxy-2-methylpropylidene)methylglycinate.
Example 82
(5Z)-5-[(5-chloro-1H-pyrrolo [2,3-b]pyridin-3-
yl)methylidene]-3-methyl-2-(1-methylethyl)-3,5-dihydro-
4H-imidazol-4-one
(5Z)-5-[(5-chloro-1H-pyrrolo [2,3-b]pyridin-3-
yl)methylidene]-3-methyl-2-(1-methylethyl)-3 , 5-dihydro-
4H-imidazol-4-one can be prepared as in Example 13, but
from 350 mg of raw 3-methyl-2-(1-methylethyl)-3,5-
dihydro-4H-imidazol-4-one(Example 81) and 0.2 g of 5-
chloro-1H-pyrrolo[2,3-b]pyridine-3-carbaldehyde, to
give 235 mg of(5Z)-5-[(5-chloro-1H-pyrrolo[2,3-
b]pyridin-3-yl)methylidene]-3-methyl-2-(1-methylethyl)-
3,5-dihydro-4H-imidazol-4-one in the form of a yellow
powder with the following characteristics:
Melting point: 282°C.
1H-NMR spectrum at 400 MHz: 1.32(d, J = 7.5 Hz, 6H) ;
3.04(m, 1H); 3.15(s, 3H); 7.29(s, 1H); 8.30(d, J =
2.0 Hz, 1H); 8.3 7(s, 1H); 9.55(s broad, 1H); 12.6(m
spread out, 1H).
HPLC-MS-DAD-ELSD: 303(+)/...=(M+H)(+)/...; 301(-)/...=(M-H)( -
) /...(1 CI present).
Example 83
(5Z)-2,3-dimethyl-5-(1H-pyrrolo[2,3-b]pyridin-3-
ylmethylidene)-3,5-dihydro-4H-imidazol-4-one

a)(5Z)-2,3-dimethyl-5-(1H-pyrrolo[2,3-b]pyridin-3-
ylmethylidene)-3,5-dihydro-4H-imidazol-4-one can be
prepared as follows:
In a microwave oven reactor, mix together 0.8 cm3 of an
8M solution of methylamine in ethanol and a suspension
of 200 mg of(4Z) -4-[(1-acetyl-1H-pyrrolo [2, 3-
b]pyridin-3-yl)methylidene]-2-methyl-1,3-oxazol-5(4H)-
one in 4 cm3 of ethanol. Seal the reactor, then
irradiate with microwave radiation for thirteen minutes
at 170°C. After filtration of the solid matter, 127 mg
of(5Z)-2,3-dimethyl-5-(1H-pyrrolo[2,3-b]pyridin-3-
ylmethylidene)-3,5-dihydro-4H-imidazol-4-one is
obtained in the form of orange powder with the
following characteristics:
1H-NMR spectrum at 400 MHz: 2.3 7(s, 3H) ; 3.10(s, 3H) ;
7.20(dd, J = 5.0 and 8.0 Hz, 1H) ; 7.29(s, 1H) ; 8.29
(dd, J = 1.5 and 5.0 Hz, 1H) ; 8.3 9(s, 1H) ; 8.91(d
broad, J = 8.0 Hz, 1H); 12.35(m spread out, 1H).
HPLC-MS-DAD-ELSD: 241(+) =(M+H)(+) ; 239(-) =(M-H)(-).
b)(4Z)-4- [(1-acetyl-1H-pyrrolo[2,3-b]pyridin-3-
yl)methylidene]-2-methyl-l,3-oxazol-5(4H)-one can be
prepared as follows:
Put 1.92 g of N-acetylglycine and 1.23 g of sodium
acetate in 25 cm3 of acetic anhydride in a three-necked
flask, under argon. Heat the reaction mixture to 80°C,
stirring for one hour. Add 2 g of 1H-pyrrolo[2,3-
b]pyridine-3-carbaldehyde and, after two hours at
140°C, cool the reaction mixture to 25°C, then filter.
Rinse the solid with water and then with ethanol before
evaporating to dryness at reduced pressure. 1.68 g of
(4Z)-2-methyl-4-(1H-pyrrolo[2,3-b]pyridin-3-

ylmethylidene)-1,3-oxazol-5(4H)-one is obtained in the
form of a. yellow powder with the following
characteristics:
LC/MS(1): Retention time: 3.3 min; 270(+) = [MH+].
Example 84
(5Z)-2-methyl-5-(1H-pyrrolo[2,3-b]pyridin-3-
ylmethylidene;) -3,5-dihydro-4H-imidazol-4-one
(5Z)-2-methyl-5-(1H-pyrrolo[2,3-b]pyridin-3-
ylmethylidene)-3,5-dihydro-4H-imidazol-4-one can be
prepared as in Example 83, but from 2.2 cm3 of 40%
ammonia in ethanol and 200 mg of(4Z)-4-[(1-acetyl-1H-
pyrrolo [2,3-b]pyridin-3-yl)methylidene]-2-methyl-1, 3-
oxazol-5(4H)-one in 2 cm3 of ethanol. After eighteen
minutes at 170°C under microwave irradiation and
filtration of the solid, 108 mg of(5Z)-2-methyl-5-(1H-
pyrrolo[2,3-b]pyridin-3-ylmethylidene)-3,5-dihydro-4H-
imidazol-4-one is obtained in the form of orange powder
with the following characteristics:
Melting point: 277-281°C.
1H-NMR spectrum at 400 MHz: 2.25(s, 3H); 7.15(s, 1H) ;
7.19(dd, J =5.0 and 8.0 Hz, 1H) ; 8.29(d broad, J =
5.0 Hz, 1H); 8.35(s, 1H); 8.87(d broad, J = 8.0 Hz,
1H); 11.1(m spread out, 1H); 12.35(m spread out, 1H).
UPLC-MS-DAD-ELSD: 225(+) =(M+H)(+) ; 227(-) =(M-H)(-).
Example 85
(5Z)-2-methyl-3-(2-morpholin-4-ylethyl)-5-(1H-
pyrrolo [2,3-b]pyridin-3-ylmethylidene)-3,5-dihydro-4H-
imidazol-4-one
(5Z)-2-methyl-3-(2-morpholin-4-ylethyl)-5-(1H-
pyrrolo [2,3-b]pyridin-3-ylmethylidene)-3,5-dihydro-4H-

imidazol-4-one can be prepared as in Example 83, but
from 0.98 cm3 of 2-morpholin-4-ylethanamine and 200 mg
of(4Z)-4-[(1-acetyl-1H-pyrrolo[2,3-b]pyridin-3-
yl)methylidene]-2-methyl-1,3-oxazol-5(4H)-one in 2 cm3
of ethanol. After eighteen minutes at 170°C under
microwave irradiation and filtration of the solid,
105 mg of(5Z)-2-methyl-3-(2-morpholin-4-ylethyl)-5-
(1H-pyrrolo[2,3-b]pyridin-3-ylmethylidene)-3,5-dihydro-
4H-imidazol-4-one is obtained in the form of orange
powder with the following characteristics:
Melting point: 235-240°C.
1H-NMR spectrum at 400 MHz: from 2.30 to 2.55(m
partially masked, 9H) ; 3.55(m, 4H) ; 3.69(t, J = 6.0
Hz, 2H) ; 7.21(dd, J = 5.0 and 8.0 Hz, 1H) ; 7.29(s,
1H) ; 8.30(dd, J = 1.5 and 5.0 Hz, 1H) ; 8.39(s, 1H) ;
8.92(d broad, J = 8.0 Hz, 1H) ; 10.0(m very broad,
1H) .
Example 86
(5Z)-3-benzyl-2-methyl-5-(1H-pyrrolo[2,3-b]pyridin-3-
ylmethylidene)-3,5-dihydro-4H-imidazol-4-one
(5Z)-3-benzyl-2-methyl-5-(1H-pyrrolo[2,3-b]pyridin-3-
ylmethylidene)-3,5-dihydro-4H-imidazol-4-one can be
prepared as in Example 83, but from 0.8 cm3 of 1-
phenylmethanamine and 200 mg of(4Z)-4-[(1-acetyl-1H-
pyrrolo[2,3-b]pyridin-3-yl)methylidene]-2-methyl-1,3-
oxazol-5(4H)-one in 2 cm3 of ethanol. After fifteen
minutes at 170°C under microwave irradiation and
filtration of the solid, 105 mg of(5Z)-3-benzyl-2-
methyl-5-(1H-pyrrolo[2,3-b]pyridin-3-ylmethylidene)-
3,5-dihydro-4H-imidazol-4-one is obtained in the form
of a yellow powder with the following characteristics:

Melting point: 274-275°C.
1H-NMR spectrum at 400 MHz: 2.28(s, 3H); 4.83(s, 2H);
7.20(dd, J == 5.0 and 8.0 Hz, 1H) ; 7.24(d, J = 7.5 Hz,
2H) ; 7.30(t, J = 7.5 Hz, 1H) ; 7.38(m, 3H) ; 8.29(dd,
J = 1.5 and 5.0 Hz, 1H); 8.41(s, 1H); 8.92(d broad, J
= 8.0 Hz, 1H); 12.45(m spread out, 1H).
Example 87
(5Z)-2-methyl-3-propyl-5-(1H-pyrrolo[2,3-b]pyridin-3-
ylmethylidene)-3,5-dihydro-4H-imidazol-4-one
(5Z)-2-methyl-3-propyl-5-(1H-pyrrolo[2,3-b]pyridin-3-
ylmethylidene)-3,5-dihydro-4H-imidazol-4-one can be
prepared as in Example 83, but from 0.6 cm3 of propan-
1-amine and 200 mg of(4Z) -4-[(1-acetyl-1H-pyrrolo[2,3-
b]pyridin-3-yl)methylidene]-2-methyl-1,3-oxazol-5(4H)-
one in 2 cm3 of ethanol. After sixteen minutes at 170°C
under microwave irradiation and filtration of the
solid, 73 mg of(5Z)-2-methyl-3-propyl-5-(1H-
pyrrolo[2,3-b]pyridin-3-ylmethylidene)-3,5-dihydro-4H-
imidazol-4-one is obtained in the form of yellow
crystals with the following characteristics:
Melting point: 206°C.
1H-NMR spectrum at 400 MHz: 0.88(t, J = 7.5 Hz, 3H) ;
1.58(m, 2H) ; 2.38(s, 3H) ; 3.53(t, J = 7.5 Hz, 2H) ;
7.19(m, 1H); 7.28(s, 1H); 8.29(m, 1H); 8.39(s, 1H);
8.90(d broad, J = 8.0 Hz, 1H) ; 12.35(m spread out,
1H) .
HPLC-MS-DAD-ELSD: 269(+) =(M+H)(+); 267(-) =(M-H)(-).
Example 88

(5Z)-2-methyl-3-(1-methylethyl)-5-(1H-pyrrolo[2,3-
b]pyridin-3-ylmethylidene)-3,5-dihydro-4H-imidazol-4-
one
(5Z)-2-methyl-3-(1-methylethyl)-5-(1H-pyrrolo[2,3-
b]pyridin-3-ylmethylidene)-3,5-dihydro-4H-imidazol-4-
one can be prepared as in Example 83, but from 0.63 cm3
of propan-2-amine and 200 mg of(4Z)-4-[(1-acetyl-1H-
pyrrolo[2,3-b]pyridin-3-yl)methylidene]-2-methyl-1,3-
oxazol-5(4H)-one in 2 cm3 of ethanol. After thirty-
eight minutes at 170°C under microwave irradiation and
filtration of the solid, the filtrate is purified by
preparative LC-MS [Column Xterra RP18 3 0x100; 5u; with
water buffered with 10 mM of ammonium hydrogen
carbonate adjusted to pH 9 with ammonia / acetonitrile
with gradient from 70/30 to 0/100 in 8 min]. 39 mg of
(5Z)-2-methyl-3-(1-methylethyl)-5-(1H-pyrrolo[2,3-
b]pyridin-3-ylmethylidene)-3,5-dihydro-4H-imidazol-4-
one is obtained in the form of yellow lyophilizate with
the following characteristics:
Melting point: 207°C.
1H-NMR spectrum at 400 MHz: 1.41(d, J = 7.0 Hz, 6H) ;
2.40(s, 3H); 4.21(m, 1H); 7.21(m, 2H); 8.29(dd, J =
1.5 and 5.0 Hz, 1H) ; 8.37(s, 1H) ; 8.90(dd, J = 1.5
and 8.0 Hz, 1H).
Example 89
(5Z)-2-butyl-5-[(5-chloro-1H-pyrrolo[2,3-b]pyridin-3-
yl)methylidene]-3-methyl-3,5-dihydro-4H-imidazol-4-one
a)(5Z)-2-butyl-5-[(5-chloro-1H-pyrrolo[2,3-b]pyridin-
3-yl)methylidene]-3-methyl-3,5-dihydro-4H-imidazol-4-
one can be prepared as in Example 83, but from 0.14 cm3
of 33% methylamine in ethanol and 67 mg of(4Z)-4-[(1-

acetyl-5-chloro-1H-pyrrolo[2,3-b]pyridin-3-
yl)methylidene]-2-butyl-1,3-oxazol-5(4H)-one in 4 cm3
of ethanol. After fifteen minutes at 170°C under
microwave irradiation and filtration of the solid,
26 mg of(5Z)-2-butyl-5-[(5-chloro-1H-pyrrolo [2,3-
b]pyridin-3-yl)methylidene]-3-methyl-3,5-dihydro-4H-
imidazol-4-one is obtained in the form of a yellow
powder with the following characteristics:
Melting point: 295-300°C.
1H-NMR spectrum at 400 MHz: 1.00(t, J = 7.5 Hz, 3H) ;
1.50(m, 2H) ; 1.85(m, 2H) ; 2.69(t, J = 7.5 Hz, 2H) ;
3.10(s, 3H) ; 7.27(s, 1H) ; 8.29(s broad, 1H) ; 8.35
(s, 1H); 9.50(s broad, 1H); 12.55(m spread out, 1H).
UPLC-MS-DAD-ELSD: 317(+)/...=(M+H)(+) /...; 315(-)/...=(M-H)( -
)/...(1 chlorine atom Cl present) .
b)(4Z)-4-[(1-acetyl-5-chloro-1H-pyrrolo[2,3-b]pyridin-
3-yl)methylidene]-2-butyl-l,3-oxazol-5(4H)-one can be
prepared as in Example 83, but from 0.32 g of N-
pentanoylglycine, 0.25 g of potassium acetate and 0.3 g
of 5-chloro-1H-pyrrolo[2,3-b]pyridine-3-carbaldehyde in
1 cm3 of acetic anhydride. After four hours at 90 °C,
cool the reaction mixture to 25°C and then dilute with
water. The solid formed is filtered and purified by
chromatography on silica(elution with methylene
chloride) to obtain 69 mg of(4Z)-4-[(1-acetyl-5-
chloro-1H-pyrrolo[2,3-b]pyridin-3-yl)methylidene]-2-
butyl-1,3-oxazol-5(4H)-one in the form of a yellow
powder with the following characteristics:
LC/MS retention time 5.75 min; LC-MS-DAD-ELSD: 346(+) =
(M+H)(+).

During the preceding purification, 88 mg of(4Z)-4-[(1-
acetyl-5-chloro-1H-pyrrolo[2,3-b]pyridin-3-
yl)methylidene]-2-methyl-1,3-oxazol-5(4H)-one is also
isolated.
Example 90
(5Z)-5-[(5-chloro-1H-pyrrolo[2,3-b]pyridin-3-
yl)methylidene]-2,3-dimethyl-3,5-dihydro-4H-imidazol-4-
one
(5Z)-5-[(5-chloro-1H-pyrrolo[2,3-b]pyridin-3-
yl)methylidene]-2,3-dimethyl-3,5-dihydro-4H-imidazol-4-
one can be prepared as in Example 83, but from 0.21 cm3
of 33% methylamine in ethanol and 85 mg of(4Z) -4-[(1-
acetyl-5-chloro-1H-pyrrolo[2,3-b]pyridin-3-
yl)methylidene]-2-methyl-1,3-oxazol-5(4H)-one(see
Example 89) in 4 cm3 of ethanol. After fifteen minutes
at 170°C under microwave irradiation and filtration of
the solid, 41 mg of(5Z)-2-methyl-5-[(5-chloro-1H-
pyrrolo[2,3-b]pyridin-3-yl)methylidene]-3-methyl-3,5-
dihydro-4H-imidazol-4-one is obtained in the form of a
yellow powder with the following characteristics:
Melting point: 295-300°C.
1H-NMR spectrum at 400 MHz: 2.37(s, 3H); 3.11(s, 3H) ;
7.29(s, 1H) ; 8.30(d, J = 2.0 Hz, 1H) ; 8.41(s, 1H) ;
9.20(s broad, 1H); 12.6(m spread out, 1H).
UPLC-MS-DAD-ELSD: 275(+)/...=(M+H)(+)/...; 274(-)/...=(M-H)( -
)/...(1 chlorine atom Cl present).
Example 91
(5Z)-2-[methyl(2-methylpropyl)amino]-5-[(5-methyl-1H-
pyrrolo[2,3-b]pyridin-3-yl)methylidene]-3,5-dihydro-4H-
imidazol-4-one

(5Z)-2-[methyl(2-methylpropyl)amino]-5-[(5-methyl-1H-
pyrrolo[2,3-b]pyridin-3-yl)methylidene]-3,5-dihydro-4H-
imidazol-4-one can be prepared as in Example 7, but
from 240 mg of(5Z)-5-[(5-methyl-1H-pyrrolo[2,3-
b]pyridin-3-yl)methylidene]-2-thioxoimidazolidin-4-one
(Example 17), 4 cm3 of ethanol and 68 0 mg of methyl-(2-
methyl)propylamine. After twenty minutes at a
temperature of 160°C and one hour at 180°C under
microwave irradiation, then filtration of the solid,
55 mg of(5Z)-2-[methyl(2-methylpropyl)amino]-5-[(5-
methyl-1H-pyrrolo[2,3-b]pyridin-3-yl)methylidene]-3,5-
dihydro-4H-imidazol-4-one is obtained in the form of a
brown powder with the following characteristics:
Melting point: 287-289°C.
1H-NMR spectrum at 400 MHz: 0.90(d, J = 6.6 Hz, 6H) ;
2.05(m, 1H) ; 2.40(s, 3H) ; 3.10(s, 3H) ; 3.30(m,
masked, 2H); 6.58(s, 1H); 8.08(s broad, 1H); 8.13(s
broad, 1H) ; 8.49(s broad, 1H) ; 11.00(s broad, 1H) ;
11.80(s broad, 1H).
Example 92
(5Z)-5- [(5-chloro-1H-pyrrolo[2,3-b]pyridin-3-
yl)methylidene]-2-phenyl-3,5-dihydro-4H-imidazol-4-one
a)(5Z)-5-[(5-chloro-1H-pyrrolo[2,3-b]pyridin-3-
yl)methylidene]-2-phenyl-3,5-dihydro-4H-imidazol-4-one
can be prepared as in Example 83, but from 2.7 cm3 of
2M ammonia in ethanol and 96 mg of(4Z)-4-[(1-acetyl-5-
chloro-1H-pyrrolo[2,3-b]pyridin-3-yl)methylidene]-2-
phenyl-1,3-oxazol-5(4H)-one in 4 cm3 of ethanol. After
four hours at 170°C under microwave irradiation and
filtration of the solid, 30 mg of(5Z)-5-[(5-chloro-1H-
pyrrolo [2,3-b]pyridin-3-yl)methylidene]-2-phenyl-3,5-

dihydro-4H-imidazol-4-one is obtained in the form of a
yellow powder with the following characteristics:
Melting point: 250°C.
1H-NMR spectrum at 400 MHz: 7.36(s, 1H); 7.61(m, 2H) ;
8.16(m, 2H) ; 8.35(d, J = 2.4 Hz, 1H) ; 8.54(a, 1H) ;
9.43(s, 1H); 11.93(s broad, 1H); 12.68(s broad, 1H).
b)(4Z)-4-[(1-acetyl-5-chloro-1H-pyrrolo[2,3-b]pyridin-
3-yl)methylidene]-2-phenyl-1,3-oxazol-5(4H)-one can be
prepared as in Example 83, but from 208 mg of hippuric
acid, 98 mg of potassium acetate and 0.2 g of 5-chloro-
1H-pyrrolo[2,3-b]pyridine-3-carbaldehyde in 5 cm3 of
acetic anhydride. After 4 hours at 100°C, the reaction
mixture is cooled to 25°C and then diluted with water.
The solid is filtered to obtain 222 mg of(4Z)-4-[(1-
acetyl-5-chloro-1H-pyrrolo[2,3-b]pyridin-3-
yl)methylidene]-2-phenyl-1,3-oxazol-5(4H)-one in the
form of orange powder with the following
characteristics:
Melting point: 242°C.
Example 93
(5Z)-2-[benzyl(methyl)amino]-5-[(5-chloro-1H-
pyrrolo[2, 3-b]pyridin-3-yl)methylidene]-3,5-dihydro-4H-
imidazol-4-one
5Z)-2-[benzyl(methyl)amino]-5-[(5-chloro-1H-
pyrrolo[2,3-b]pyridin-3-yl)methylidene]-3,5-dihydro-4H-
imidazol-4-one can be prepared as in Example 7, but
from 100 mg of(5Z)-5-[(5-chloro-1H-pyrrolo[2,3-
b]pyridin-3-yl)methylene]-2-thioxoimidazolidin-4-one
(Example 3), 1.5 cm3 of ethanol and 435 mg of N-methyl-
1-phenylmethanamine. After ninety minutes at a
temperature of 180°C under microwave irradiation, then

filtration of the solid, 39 mg of(5Z) -2-
[benzyl(methyl) amino]-5-[(5-chloro-1H-pyrrolo [2,3-
b]pyridin-3-yl)methylidene]-3,5-dihydro-4H-imidazol-4-
one is obtained in the form of a yellow powder with the
following characteristics:
Melting point: 310°C.
1H-NMR spectrum at 400 MHz: 3.05(s, 3H); 4.73(br s,
2H) ; 6.66(s, 1H) ; 7.20-7.47(m, 5H) ; 8.21(s, 2H) ;
9.06(s, 1H); 11.22(br s, 1H); 12.17(b s, 1H).
Mass spectrum: UPLC-MS-DAD-ELSD: 364(-) =(M-H)(-);
366(+) =(M+H)(+).
Example 94
(5Z)-5-[(5-chloro-1H-pyrrolo[2,3-b]pyridin-3-
yl)methylidene]-2-[(furan-2-ylmethyl)(methyl)amino]-
3,5-dihydro-4H-imidazol-4-one
(5Z)-5-[(5-chloro-1H-pyrrolo[2,3-b]pyridin-3-
yl)methylidene]-2-[(furan-2-ylmethyl)(methyl)amino]-
3,5-dihydro-4H-imidazol-4-one can be prepared as in
Example 7, but from 100 mg of(5Z)-5-[(5-chloro-1H-
pyrrolo[2,3-b]pyridin-3-yl)methylene]-2-
thioxoimidazolidin-4-one(Example 3), 1.5 cm3 of
ethanol and 399 mg of l-furan-2-yl-N-methylmethanamine.
After one hour at a temperature of 180°C under
microwave irradiation, then filtration of the solid,
49 mg of(5Z)-5-[(5-chloro-1H-pyrrolo[2,3-b]pyridin-3-
yl)methylidene]-2-[(furan-2-ylmethyl)(methyl)amino]-
3,5-dihydro-4H-imidazol-4-one is obtained in the form
of brown powder with the following characteristics:
Melting point: 315°C.

1H-NMR spectrum at 400 MHz: 3.07(s, 3H) ; 4.71(b s,
2H); 6.44(s, 2H); 6.67(s, 1H); 7.64(s, 1H); 8.23(s,
2H); 9.09(b s, 1H); 11.11(b s, 1H), 12.15(b s, 1H).
Mass spectrum: UPLC-MS-DAD-ELSD: 354(-) =(M-H)(-);
356(+) =(M+H)(+).
Example 95
(5Z)-5-[(5-chloro-1H-pyrrolo[2,3-b]pyridin-3-
yl)methylidene]-2-[(2-methoxyethyl)(methyl)amino]-3,5-
dihydro-4H-imidazol-4-one
(5Z)-5-[(5-chloro-1H-pyrrolo[2,3-b]pyridin-3-
yl)methylidene]-2-[(2-methoxyethyl)(methyl)amino]-3,5-
dihydro-4H-imidazol-4-one can be prepared as in Example
7, but from 100 mg of(5Z)-5-[(5-chloro-1H-pyrrolo[2,3-
b]pyridin-3-yl)methylene]-2-thioxoimidazolidin-4-one
(Example 3), 1.5 cm3 of ethanol and 320 mg of 2-
methoxy-N-methylethanamine. After fifteen minutes under
microwave irradiation at each of the temperatures of
160, 165, 170, 175 and 180°C, then filtration of the
solid, 50 mg of(5Z)-5-[(5-chloro-1H-pyrrolo[2,3-
b]pyridin-3-yl)methylidene]-2-[(2-
methoxyethyl)(methyl)amino]-3,5-dihydro-4H-imidazol-4-
one is obtained in the form of a yellow powder with the
following characteristics:
Melting point: 281°C.
1H-NMR spectrum at 400 MHz: 3.13(b s, 3H) ; 3.28-3.30
(m, 2H) ; 3.58(b s, 3H) ; 3.65(b s, 2H) ; 6.61(s, 1H) ;
8.18(s, 1H) ; 8.22(d, J = 2 Hz, 1H) ; 9.10(b s, 1H) ;
11.07(b s, 1H); 12.18(b s, 1H).
Mass spectrum: UPLC-MS-DAD-ELSD: 332(-) =(M-H)(-);
334(+) =(M+H)(+).

Example 96
(5Z) -5-[(5-chloro-1H-pyrrolo [2, 3-b]pyridin-3-
yl)methylidene]-2-[methyl(pyridin-2-ylmethyl)amino]-
3,5-dihydro-4H-imidazol-4-one
(5Z)-5-[(5-chloro-1H-pyrrolo[2,3-b]pyridin-3-
yl)methylidene]-2-[methyl(pyridin-2-ylmethyl)amino]-
3,5-dihydro-4H-imidazol-4-one can be prepared as in
Example 7, but from 100 mg of(5Z) -5-[(5-chloro-1H-
pyrrolo[2,3-b]pyridin-3-yl)methylene]-2-
thioxoimidazolidin-4-one(Example 3), 1.5 cm3 of
ethanol and 439 mg of N-methyl-1-pyridin-2-
ylmethanamine. After two hours at a temperature of
180°C under microwave irradiation, then filtration of
the solid, 18 mg of(5Z)-5-[(5-chloro-1H-pyrrolo [2,3-
b]pyridin-3-yl)methylidene]-2-[methyl(pyridin-2-
ylmethyl)amino]-3,5-dihydro-4H-imidazol-4-one is
obtained in the form of a yellow powder with the
following characteristics:
Melting point: 350°C.
1H-NMR spectrum at 400 MHz: 3.07(s, 3H) ; 4.78(s, 2H) ;
6.68(s, 1H); 7.40(dd, J = 7.3, 4.9 Hz, 1H); 7.77(d,
J = 8.3 Hz, 1H) ; 8.11-8.27(m, 2H) ; 8.51(d, J = 4.4
Hz, 1H); 8.60(s, 1H); 9.05(b s, 1H); 11.25(b s, 1H) ;
12.20(b s, 1H).
Mass spectrum: UPLC-MS-DAD-ELSD: 365(-) =(M-H)(-);
367(+) =(M+H)(+).
Example 97
(5Z)-5-[(5-chloro-1H-pyrrolo[2,3-b]pyridin-3-
yl) methylidene]-2-phenoxy-3-phenyl-3,5-dihydro-4H-
imidazol-4-one

a)(5Z)-5-[(5-chloro-1H-pyrrolo[2,3-b]pyridin-3-
yl)methylidene]-2-phenoxy-3-phenyl-3,5-dihydro-4H-
imidazol-4-one can be prepared as in Example 1, but
from 42 mg of 5-chloro-1H-pyrrolo[2,3-b]pyridine-3-
carbaldehyde in 4 cm3 of ethanol, 59 mg of 2-phenoxy-3-
phenyl-3,5-dihydro-4H-imidazol-4-one and 0.023 cm3 of
piperidine. After refluxing for five hours, 60 mg of(5Z)-5-[(5-chloro-1H-pyrrolo[2,3-b]pyridin-3-
yl)methylidene]-2-phenoxy-3-phenyl- 3,5-dihydro-4H-
imidazol-4-one is obtained in the form of a pale yellow
solid with the following characteristics:
Melting point: 287°C.
1H-NMR spectrum at 400 MHz: 6.96-7.77(m, 11H), 8.18(s, 1H), 8.20(s, 1H), 8.80(s, 1H) , 12.5(m spread
out, 1H).
Mass spectrum: m/z = 414(M+)
b) 2-phenoxy-3-phenyl-3,5-dihydro-4H-imidazol-4-one can
be prepared as follows: at a temperature close to 20°C,
add 0.1 g of phenol and 7 mg of potassium carbonate to
0.2 g of N-[(phenylimino)methylidene]methylglycinate in
solution in 5 cm3 of acetonitrile. After stirring for
24 hours at a temperature close to 55°C, the reaction
mixture is concentrated to dryness at reduced pressure
to give a residue, which is purified by flash
chromatography on an SVL D26 Merck SI60 cartridge 25 g,
15-40uM, flow rate 20ml/min, vf 4.3 ml [eluent: ethyl
acetate / cyclohexane(1 / 3 by volume)]. After
concentration of the fractions at reduced pressure, a
yellow residue is obtained, which is stirred in 5 cm3
of petroleum ether, then filtered and dried at reduced
pressure to give 68 mg of 2-phenoxy-3-phenyl-3,5-

dihydro-4H-imidazol-4-one, in the form of a pale yellow
solid with the following mass spectrum: m/z = 252(M+).
c) N-[(phenylimino)methylidene]methylglycinate can be
prepared as follows: at a temperature close to 0°C,
under an argon atmosphere, add 9.64 g of dibromo-
triphenylphosphine and 6.3 5 cm3 of triethylamine to
3.17 g of N-(phenylcarbamoyl)methylglycinate in
suspension in 100 cm3 of dichloromethane. Allow the
temperature to return slowly to room temperature. After
stirring for 20 hours at a temperature close to 20°C,
wash the reaction mixture successively with 50 cm3 of
water and 5 0 cm3 of a saturated aqueous solution of
potassium hydrogen carbonate, dry over anhydrous
magnesium sulphate, filter and concentrate to dryness
at reduced pressure, to give 9.5 g of a brown solid,
which is purified by flash chromatography on an EVP D57
Merck SI60 cartridge 200 g, 40-63uM, flow rate
30ml/min, vf 17.5 ml [eluent: ethyl acetate /
cyclohexane(1 / 7 by volume)]. After concentration of
the fractions at reduced pressure, 1.47 g of N-
[(phenylimino)methylidene]methylglycinate is obtained
in the form of a pale yellow oil with the following
mass spectrum: m/z = 190(M+) .
d) N-(phenylcarbamoyl)methylglycinate can be prepared
as follows: at a temperature close to 20°C, under an
argon atmosphere, add 2.3 9 cm3 of phenyl isocyanate and
3.34 cm3 of triethylamine to 2.51 g of methylglycinate
hydrochloride in suspension in 5 0 cm3 of
dichloromethane. After stirring for 5 hours at a
temperature close to 20°C, the reaction mixture is
washed with 50 cm3 of water. The aqueous phase is
extracted with 2 x 50 cm3 of dichloromethane. The
organic phases are combined, dried over anhydrous

magnesium sulphate, filtered and concentrated to
dryness at reduced pressure to give a residue, which is
washed successively with 5 x 50 cm3 of petroleum ether
and 3 x 100 cm3 of a petroleum ether / diisopropyl
ether mixture(1/1 by volume). After drying at reduced
pressure at a temperature close to 20°C, 3.17 g of N-(phenylcarbamoyl)methylglycinate is obtained in the
form of a white solid with the following mass spectrum:
m/z = 208(M+).
Example 98
(5Z)-5-[1-(5-chloro-1H-pyrrolo[2,3-b]pyridin-3-yl)-
methylidene]-2-methoxy-3-phenyl-3,5-dihydro-4H-
imidazol-4-one
a)(5Z)-5-[1-(5-chloro-1H-pyrrolo[2,3-b]pyridin-3-yl)-
methylidene]-2-methoxy-3-phenyl-3,5-dihydro-4H-
imidazol-4-one can be prepared as in Example 1, but
from 34 mg of 5-chloro-1H-pyrrolo[2,3-b]pyridine-3-
carbaldehyde in 4 cm3 of ethanol, 36 mg of 2-phenoxy-3-
phenyl-3,5-dihydro-4H-imidazol-4-one and 0.02 cm3 of
piperidine. After refluxing for five hours, 4 3 mg of
(5Z)-5- [1-(5-chloro-1H-pyrrolo[2,3-b]pyridin-3-yl)-
methylidene]-2-methoxy-3-phenyl-3,5-dihydro-4H-
imidazol-4-one is obtained in the form of a pale yellow
solid with the following characteristics:
Melting point: 227.5°C.
1H-NMR spectrum at 400 MHz: 4.18(s, 3H) , 7.29(s, 1H) ,
7.42(m, 3H) , 7.52(t, J = 7.6 Hz, 2H), 8.31(s broad,
1H), 8.41(s, 1H), 9.18(s broad, 1H) , 12.55(m spread
out, 1H).
Mass spectrum: m/z = 352(M+)

b) 2-methoxy-3-phenyl-3,5-dihydro-4H-imidazol-4-one can
be prepared as follows: at a temperature close to 20°C,
add 9 mg of potassium carbonate to 0.2 g of N-
[(phenylimino)methylidene]methylglycinate(prepared as
described in Example 97) in solution in 5 cm3 of
methanol. After stirring for six hours thirty minutes
at a temperature close to 55°C, the reaction mixture is
concentrated to dryness at reduced pressure(2.7 kPa)
to give a residue, which is purified by flash
chromatography on an SVL D26 Merck SI60 cartridge 25 g,
15-40uM, flow rate 20ml/min, vf 4.3 ml [eluent: ethyl
acetate / cyclohexane(1 / 1 by volume)]. After
concentration of the fractions at reduced pressure, a
yellow residue is obtained, which is stirred in 5 cm3
of petroleum ether, then filtered and dried at reduced
pressure(2.7 kPa) to give 41 mg of 2-methoxy-3-phenyl-
3,5-dihydro-4H-imidazol-4-one in the form of a pale
yellow solid with the following mass spectrum: m/z =
190(M+)
Example 99
(5Z)-5-[(5-chloro-1H-pyrrolo[2,3-b]pyridin-3-
yl)methylidene]-3-methyl-2-phenoxy-3,5-dihydro-4H-
imidazol-4-one
a) (5Z)-5-[(5-chloro-1H-pyrrolo[2,3-b]pyridin-3-
yl)methylidene]-3-methyl-2-phenoxy-3,5-dihydro-4H-
imidazol-4-one can be prepared as in Example 1, but
from 74 mg of 5-chloro-1H-pyrrolo[2,3-b]pyridine-3-
carbaldehyde in 7 cm3 of ethanol, 70 mg of 3-methyl-2-
phenoxy-3,5-dihydro-4H-imidazol-4-one and 0.038 cm3 of
piperidine. After refluxing for six hours, 48 mg of(5Z)-5-[(5-chloro-1H-pyrrolo[2,3-b]pyridin-3-
yl)methylidene]-3-methyl-2-phenoxy-3,5-dihydro-4H-

imidazol-4-one is obtained in the form of a pale yellow
solid with the following characteristics:
1H-NMR spectrum at 400 MHz: 3.21(s, 3H) , 7.19(s, 1H) ,
7.33-7.62(m, 5H), 8.12(s, 1H), 8.19(s, 1H), 8.79(s,
1H) , 12.45(m spread out, 1H)
Mass spectrum: m/z = 3 52(M+)
b) 3-methyl-2-phenoxy-3,5-dihydro-4H-imidazol-4-one can
be prepared as follows: at a temperature close to 20°C,
add 0.1 g of phenol and 12 mg of potassium carbonate to
0.151 g of N-[(methylimino)methylidene]methylglycinate
in solution in 5 cm3 of acetonitrile. After stirring
for 6.5 hours at a temperature close to 55°C, the
reaction mixture is concentrated to dryness at reduced
pressure(2.7 kPa) to give a residue, which is purified
by flash chromatography on an SVL D26 Merck SI60
cartridge 25 g, 15-40uM, flow rate 20ml/min, vf 4.3 ml
[eluent: ethyl acetate / cyclohexane(1/1 by volume)].
After concentration of the fractions at reduced
pressure, a yellow residue is obtained, which is
stirred in 5 cm3 of petroleum ether, then filtered and
dried at reduced pressure(2.7 kPa) to give 149 mg of
3-methyl-2-phenoxy-3,5-dihydro-4H-imidazol-4-one in the
form of a white solid with the following mass spectrum:
m/z = 190(M+).
c) N-[(methylimino)methylidene]methylglycinate can be
prepared as follows: at a temperature close to 0°C,
under an argon atmosphere, add 5.42 g of dibromo-
triphenylphosphine and 3.6 cm3(25.66 mmol) of
triethylamine to 1.37 g of N-
(methylcarbamoyl)methylglycinate in suspension in
50 cm3 of dichloromethane. Allow the temperature to
return slowly to room temperature. After stirring for

24 hours at a temperature close to 20°C, filter the
reaction mixture several times on a No. 4 glass frit.
The filtrate is taken up in 4 x 25 cm3 of petroleum
ether, filtering each time to remove as much
triphenylphosphine oxide as possible. The filtrate is
concentrated to dryness at reduced pressure(2.7 kPa)
to give 0.74 g of a yellow oil, which is purified by
chromatography on 74 g of aluminium oxide(Fluka type
507c neutral) activated with 4.4 cm3(6%) of water,
Patm, vf 20 ml(eluent: dichloromethane). After
concentration of the fractions at reduced pressure,
0.48 g of N-[(methylimino)methylidene]methylglycinate
is obtained in the form of a pale yellow oil with the
following mass spectrum: m/z = 142(M+) .
d) N-(methylcarbamoyl)methylglycinate can be prepared
as follows: at a temperature close to 20°C, under an
argon atmosphere, add 3.9 cm3 of a 2M solution of
methylamine in tetrahydrofuran to 1.0 g N-
(oxomethylidene)methylglycinate in solution in 8 cm3 of
tetrahydrofuran. After stirring for 4 hours at a
temperature close to 20°C, filter the reaction mixture
on a No. 4 glass frit, then concentrate the filtrate to
dryness at reduced pressure(2.7 kPa), to give a white
residue, which is stirred with 3 x 25 cm3 of petroleum
ether, then filtered and dried at reduced pressure(2.7
kPa) to give 1.37 g of N-(methyl carbamoyl) methylglycinate in the form of a white
solid with the following mass spectrum: m/z = 16 0(M+)
Example 100: Pharmaceutical composition
Tablets were prepared, corresponding to the following
formula:


(detailed excipients: lactose, talc, starch,
magnesium stearate).
Example 101: Pharmaceutical composition
Tablets were prepared, corresponding to the following
formula: ~

(detailed excipients: lactose, talc, starch, magnesium
stearate).
Examples 1 and 10 are given as examples of a
pharmaceutical preparation, which can be prepared if
desired with other products shown as examples in the
present application.

Patent Claims
1. Products of formula(I):

in which:
X-Y represents NH-C(S), N=C-NR7R8, N=C-SR, N=C-R
or N=C-OR;
R1 represents a hydrogen atom, a cycloalkyl radical or
an alkyl, heterocycloalkyl, aryl or heteroaryl radical,
all these radicals being optionally substituted;
R, which may be identical to or different from Rl, is
selected from the values of R1;
R2 represents a hydrogen atom, a halogen atom or an
alkyl radical;
R3 represents a hydrogen atom, a halogen atom, a
hydroxyl radical or an alkyl or alkoxy radical;
R4 represents a hydrogen atom, a halogen atom or a
cyano, CF3 or alkyl radical;
R5 represents a hydrogen atom, a halogen atom, a
hydroxyl, cyano, NR7R8, CONR7R8, NR11COR12 radical or a
cycloalkyl, alkyl, alkoxy, heterocycloalkyl, aryl or

heteroaryl radical, all these last-mentioned radicals
being optionally substituted;
R6 represents a hydrogen atom, a halogen atom or an
NR7R8, alkyl or alkoxy radical;
R7 and R8 are such that:
either R7 and R8, which may be identical or different,
are such that one of R7 and R8 represents a hydrogen
atom or an alkyl radical, optionally substituted;
and the other one of R7 and R8 represents a hydrogen
atom or a cycloalkyl, alkyl, heterocycloalkyl,
heteroaryl or aryl radical, all these radicals being
optionally substituted;
or R7 and R8 form, together with the nitrogen atom to
which they are attached, a cyclic radical formed from 3
to 7 ring members optionally containing one or more
other heteroatoms selected from O, S or N, N being
optionally substituted with R11, said cyclic radical
itself being optionally substituted;
all the alkyl, alkoxy, cycloalkyl, heterocycloalkyl,
heteroaryl and aryl radicals, as well as the cyclic
radical that. R7 and R8 can form together with the
nitrogen atom to which they are attached, indicated as
optionally substituted, thus being optionally
substituted with one or more radicals, which may be
identical or different, selected from the halogen atoms
and the hydroxyl, cyano, nitro, CF3, NR9R10, NHCOR11,
NHCO2R11, NHCONR9R10, NHSO2R13, COOH, COOalk, CONR9R10,
SO2NR9R10, alkoxy, alkylthio, haloalkoxy,
haloalkylthio, alkyl, fluoroalkyl, hydroxyalkyl,
cycloalkyl, heterocycloalkyl, heteroaryl and phenyl
radicals, these last-mentioned heteroaryl, aryl and

phenyl radicals themselves being optionally substituted
with one or more radicals, which may be identical or
different, selected from the halogen atoms and the
hydroxyl, NH2, NH(alk), N(alk)2, alkyl, hydroxyalkyl
and alkoxy radicals;
R9 and R10 are such that:
either R9 and R10, which may be identical or different,
are such that one of R9 and R10 represents a hydrogen
atom or an alkyl radical optionally substituted with
one or more radicals, which may be identical or
different, selected from the halogen atoms and the
hydroxyl and alkoxy radicals;
and the other one of R9 and R10 represents a hydrogen
atom or a cycloalkyl, alkyl, heterocycloalkyl,
heteroaryl or aryl radical, all these radicals
themselves being optionally substituted with one or
more radicals, which may be identical or different,
selected from the halogen atoms and the hydroxyl, NH2,
NH(alk), N(alk)2, alkyl, hydroxyalkyl and alkoxy
radicals;
or R9 and R10 form, together with the nitrogen atom to
which they are attached, a cyclic radical formed from 3
to 7 ring members optionally containing one or more
other heteroatoms selected from O, S or N, N being
optionally substituted with R12, said cyclic radical
itself being optionally substituted with one or more
radicals, which may be identical or different, selected
from the halogen atoms and the hydroxyl, NH2, NH(alk),
N(alk)2, alkyl, hydroxyalkyl and alkoxy radicals;
R11 and R12, which may be identical or different,
represent a hydrogen atom or an alkyl or phenyl

radical, optionally substituted with one or more
radicals, which may be identical or different, selected
from the halogen atoms and the hydroxyl and alkoxy
radicals, the phenyl radical itself being optionally
substituted with one or more alkyl radicals;
R13 represents an alkyl or phenyl radical, optionally
substituted with one or more radicals, which may be
identical or different, selected from the halogen atoms
and the hydroxyl and alkoxy radicals, the phenyl
radical itself being optionally substituted with one or
more alkyl radicals;
all the above alkyl(alk) and alkoxy radicals being
linear or branched and containing at most 12 carbon
atoms;
it being understood that the products of formula(I) in
which all of the following conditions are fulfilled,
are excluded:
- R2 represents hydrogen;
- R3 represents hydrogen or alkyl;
- X-Y represents N=C-NR7R8, N=C-SR or N=CR in which X
represents N and Y represents =C-NR7R8, =C-SR or =CR
and R represents aryl or heteroaryl
- R1 represents H or alk;
- and R4, R5 and R6 are such that two of them represent
H and the other one represents hydrogen, NH2 or NHalk,
said products of formula(I) being in all possible
tautomeric and isomeric forms(racemates, enantiomers
and diastereoisomers), as well as salts of addition of

said products of formula(I) with organic and inorganic
acids or with organic and inorganic bases.
2. Products of formula(I) as defined in Claim 1
in which:
Rl represents a hydrogen atom, or an alkyl radical, all
these radicals being optionally substituted as stated
in Claim 1 or in any one of the other claims;
and R5 represents a halogen atom, a hydroxyl, cyano,
NR7R8, CF3 radical or a cycloalkyl, alkyl, alkoxy,
heterocycloalkyl, aryl or heteroaryl radical,
all these last-mentioned radicals being optionally
substituted as stated in Claim 1 or in any one of the
other claims;
the other substituent radicals R2, R3, R4, R6 and X-Y
having the values defined in Claim 1 or in any one of
the other claims,
said products of formula(I) being in all possible
tautomeric and isomeric forms(racemates, enantiomers
and diastereoisomers), as well as salts of addition of
said products of formula(I) with organic and inorganic
acids or with organic and inorganic bases.
3. Products of formula(I) as defined in Claim 1
in which:
R2 represents a hydrogen atom;
and R5 represents a halogen atom, a hydroxyl, cyano,
NR7R8, CF3 radical or a cycloalkyl, alkyl, alkoxy,
heterocycloalkyl, aryl or heteroaryl radical, all these
last-mentioned radicals being optionally substituted as
stated in Claim 1 or in any one of the other claims;

the other substituent radicals R1, R3, R4, R6 and X-Y
having the values defined in Claim 1 or in any one of
the other claims,
said products of formula(I) being in all possible
tautomeric and isomeric forms(racemates, enantiomers
and diastereoisomers) , as well as salts of addition of
said products of formula(I) with organic and inorganic
acids or with organic and inorganic bases.
4. Products of formula(I) as defined in Claim 1
in which:
R3 represents a hydrogen atom;
and R5 represents a halogen atom, a hydroxyl, cyano,
CONR7R8 radical or a cycloalkyl, alkyl, alkoxy,
heterocycloalkyl, aryl or heteroaryl radical, all these
last-mentioned radicals being optionally substituted as
stated in Claim 1 or in any one of the other claims;
the other radicals R2, R3, R4, R6 and X-Y having the
values defined in Claim 1 or in any one of the other
claims,
said products of formula(I) being in all possible
tautomeric and isomeric forms(racemates, enantiomers
and diastereoisomers), as well as salts of addition of
said products of formula(I) with organic and inorganic
acids or with organic and inorganic bases.
5. Products of formula(I) as defined in Claim 1
in which:
X-Y represents NH-C(S), N=C-NR7R8 or N=C-R;
Rl represents a hydrogen atom, a cycloalkyl radical or
an alkyl, heterocycloalkyl, aryl or heteroaryl radical,

all these radicals being optionally substituted as
stated in Claim 1 or in any one of the other claims;
R, which may be identical to or different from R1, is
selected from the values of R1 as defined in Claim 1 as
stated in Claim 1 or in any one of the other claims
with the exception of aryl and heteroaryl;
the other substituents R2, R3, R4, R5 and R6 having the
values defined in Claim 1 or in any one of the other
claims;
said products of formula(I) being in all possible
tautomeric and isomeric forms(racemates, enantiomers
and diastereoisomers), as well as salts of addition of
said products of formula(I) with organic and inorganic
acids or with organic and inorganic bases.
6. Products of formula(I) as defined in Claim 1
in which:
X-Y represents NH-C(S), N=C-NR7R8, N=C-SR, N=C-R or
N=C-OR;
R1 represents a hydrogen atom, a cycloalkyl radical or
an alkyl, heterocycloalkyl, phenyl or heteroaryl
radical, these last-mentioned radicals being optionally
substituted;
R, which may be identical to or different from R1, is
selected from the values of Rl;
R2 represents a hydrogen atom, a halogen atom or an
alkyl radical;
R3 represents a hydrogen atom, a halogen atom, a
hydroxyl radical or an alkyl or alkoxy radical;

R4 represents a hydrogen atom, a halogen atom or a
cyano, CF3 or alkyl radical;
R5 represents a hydrogen atom, a halogen atom, a
hydroxyl, cyano, NR7R8, CONR7R8, NR11C0R12 radical or a
cycloalkyl, alkyl, alkoxy, heterocycloalkyl, phenyl or
heteroaryl radical, all these last-mentioned radicals
being optionsilly substituted;
R6 represents a hydrogen atom, a halogen atom or an
NR7R8, alkyl or alkoxy radical;
R7 and R8 are such that:
either R7 and R8, which may be identical or different,
are such that one of R7 and R8 represents a hydrogen
atom or an alkyl radical optionally substituted with
one or more radicals, which may be identical or
different, selected from the halogen atoms and the
hydroxyl and alkoxy radicals;
and the other one of R7 and R8 represents a hydrogen
atom or a cycloalkyl, alkyl, heterocycloalkyl,
heteroaryl or phenyl radical, all these radicals being
optionally substituted;
or R7 and R8 form, together with the nitrogen atom to
which they are attached, a cyclic radical formed from 3
to 7 ring members optionally containing one or more
other heteroatoms selected from O, S or N, N being
optionally substituted with R11, said cyclic radical
itself being optionally substituted;
all the alkyl, alkoxy, cycloalkyl, heterocycloalkyl,
heteroaryl and aryl radicals, as well as the cyclic
radical that R7 and R8 can form together with the
nitrogen atom to which they are attached, indicated as

optionally substituted, thus being optionally-
substituted with one or more radicals, which may be
identical or different, selected from the halogen atoms
and the hydroxyl, cyano, nitro, CF3, NR9R10, NHCOR11,
NHSO2R13, COOH, COOalk, CONR9R10, SO2NR9R10, alkoxy,
haloalkoxy, alkyl, fluoroalkyl, hydroxyalkyl,
cycloalkyl, heterocycloalkyl, heteroaryl and phenyl
radicals, these last-mentioned heteroaryl and phenyl
radicals themselves being optionally substituted with
one or more radicals, which may be identical or
different, selected from the halogen atoms and the
hydroxyl, NH2, NH(alk), N(alk)2, alkyl, hydroxyalkyl
and alkoxy radicals;
R9 and R10 are such that:
either R9 and R10, which may be identical or different,
are such that one of R9 and R10 represents a hydrogen
atom or an alkyl radical and the other one of R9 and
R10 represents a hydrogen atom or an alkyl, phenyl or
phenylalkyl radical, themselves optionally substituted
with one or more radicals, which may be identical or
different, selected from the halogen atoms and the
hydroxyl, NH2, NH(alk), N(alk)2, alkyl, hydroxyalkyl
and alkoxy radicals;
or R9 and R10 form, together with the nitrogen atom to
which they are attached, a pyrrolidinyl, morpholine,
piperidyl, azepinyl or piperazinyl radical optionally
substituted with an alkyl or phenyl radical, itself
optionally substituted with one or more radicals, which
may be identical or different, selected from the
halogen atoms and the alkyl, hydroxyl, NH2, NH(alk),
N(alk)2, alkyl, hydroxyalkyl and alkoxy radicals;

R11 and R12, which may be identical or different,
represent a hydrogen atom or an alkyl or phenyl
radical;
R13 represents an alkyl or phenyl radical;
all the above alkyl(alk) and alkoxy radicals being
linear or branched and containing at most 6 carbon
atoms;
said products of formula(I) being in all possible
tautomeric and isomeric forms(racemates, enantiomers
and diastereoisomers) , as well as salts of addition of
said products of formula(I) with organic and inorganic
acids or with organic and inorganic bases.
7. Products of formula(I) as defined in any one
of the other claims in which:
X-Y represents NH-C(S), N=C-NR7R8, N=C-SR, N=C-R or
N=C-OR;
R1 represents a hydrogen atom or an alkyl or phenyl
radical, optionally substituted;
R represents a hydrogen atom; a cycloalkyl radical; an
alkyl, heterocycloalkyl, phenyl, or heteroaryl radical,
all these radicals being optionally substituted;
R2 represents a hydrogen atom, a halogen atom or an
alkyl radical;
R3 represents a hydrogen atom, a halogen atom, a
hydroxyl radical or an alkyl radical;
R4 represents a hydrogen atom, a halogen atom or an
alkyl radical;

R5 represents a hydrogen atom; a halogen atom; a
hydroxyl, cyano, NR7R8, alkyl, alkoxy,
heterocycloalkyl, phenyl, or heteroaryl radical, these
last-mentioned radicals as well as the phenyl residue
in NHphenyl and NH(phenylalk) being optionally
substituted;
R6 represents a hydrogen atom, a halogen atom, or an
NH2, NHalk, N(alk)2, alkyl or alkoxy radical;
R7 and R8 are such that:
either R7 and R8, which may be identical or different,
are such that one of R7 and R8 represents a hydrogen
atom or an alkyl radical;
and the other one of R7 and R8 represents a hydrogen
atom, or an alkyl or cycloalkyl radical, optionally
substituted;
or R7 and R8 form, together with the nitrogen atom to
which they are attached, a cyclic radical selected from
the azetidyl, piperidyl, azepanyl, morpholinyl,
thiomorpholinyl, pyrrolidinyl, imidazolidinyl,
piperazinyl radicals optionally substituted on its
second nitrogen atom with an alkyl or phenyl radical,
themselves optionally substituted; and homopiperazinyl,
these radicals being optionally substituted;
all the alkyl, alkoxy, heterocycloalkyl, heteroaryl and
phenyl radicals, as well as the cyclic radical that R7
and R8 can form together with the nitrogen atom to
which they are attached, indicated as optionally
substituted, thus being optionally substituted with one
or more radicals, which may be identical or different,
selected from the halogen atoms and the hydroxyl, NH2,
NH(alk), N(alk)2, NHphenyl, NH(phenylalk), alkyl, CF3,

alkoxy, OCF3, cycloalkyl, heterocycloalkyl, heteroaryl
and phenyl radicals; these last-mentioned heteroaryl
and phenyl radicals, as well as the phenyl residue in
the NHphenyl and NH(phenylalk) radicals, themselves
being optionally substituted with one or more radicals,
which may be identical or different, selected from the
halogen atoms and the hydroxyl, NH2, NHAlk, N(Alk)2,
alkyl, hydroxyalkyl and alkoxy radicals;
all the above alkyl(alk) and alkoxy radicals being
linear or branched and containing at most 6 carbon
atoms;
said products of formula(I) being in all possible
tautomeric and isomeric forms(racemates, enantiomers
and diastereoisomers), as well as salts of addition of
said products of formula(I) with organic and inorganic
acids or with organic and inorganic bases.
8. Products of formula(I) as defined in any one
of the other claims in which:
X-Y represents NH-C(S), N=C-NR7R8, N=C-SR, N=C-R or
N=C-OR;
R1 represents a hydrogen atom or an alkyl or phenyl
radical, optionally substituted;
R, which may be identical to or different from R1, is
selected from the values of R1;
R2 represents a hydrogen atom, a halogen atom or an
alkyl radical;
R3 represents a hydrogen atom, a halogen atom, a
hydroxyl radical or an alkyl radical;

R4 represents a hydrogen atom, a halogen atom or an
alkyl radical;
R5 represents a hydrogen atom, a halogen atom, a
hydroxy1 radical, an NH2, NHalk, N(alk)2, NR7R8,
NHphenyl, NH(phenylalk) radical or an alkyl,
heterocycloalkyl, alkoxy, phenyl or heteroaryl radical,
these last-mentioned radicals as well as the phenyl
residue in NHphenyl and NH(phenylalk) being optionally
substituted;
R6 represents a hydrogen atom, a halogen atom, or an
NH2, NHalk, N(alk)2, alkyl or alkoxy radical;
R7 and R8 are such that:
either R7 and R8, which may be identical or different,
are such that one of R7 and R8 represents a hydrogen
atom or an alkyl radical;
and the other one of R7 and R8 represents a hydrogen
atom, or an alkyl or cycloalkyl radical, optionally
substituted;
or R7 and R8 form, together with the nitrogen atom to
which they are attached, a cyclic radical containing 4
to 6 ring members selected from azetidyl; piperidyl;
morpholinyl; thiomorpholinyl; pyrrolidinyl;
imidazolidinyl; piperazinyl; and homopiperazinyl, these
radicals being optionally substituted;
all the alkyl, alkoxy, heteroaryl and phenyl radicals,
as well as the cyclic radical that R7 and R8 can form
together with the nitrogen atom to which they are
attached, indicated as optionally substituted, thus
being optionally substituted with one or more radicals,
which may be identical or different, selected from the

halogen atoms and the hydroxyl, NH2, NH(alk), N(alk)2,
NHphenyl, NH(phenylalk), alkyl, CF3, alkoxy, 0CF3,
cycloalkyl, heterocycloalkyl, heteroaryl and phenyl
radicals; these last-mentioned heteroaryl and phenyl
radicals, as well as the phenyl residue in the NHphenyl
and NH(phenylalk) radicals, themselves being optionally
substituted with one or more radicals, which may be
identical or different, selected from the halogen atoms
and the hydroxyl, NH2, NHAlk, N(Alk)2, alkyl,
hydroxyalkyl and alkoxy radicals;
all the above alkyl(alk) and alkoxy radicals being
linear or branched and containing at most 6 carbon
atoms;
said products of formula(I) being in all possible
tautomeric and isomeric forms(racemates, enantiomers
and diastereoisomers) , as well as salts of addition of
said products of formula(I) with organic and inorganic
acids or with organic and inorganic bases.
9. Products of formula(I) as defined in any one
of the other claims, in which X-Y, R2, R3, R4 and R6
have the meanings stated in any one of the other
claims,
R1 represents a hydrogen atom or an alkyl radical,
optionally substituted;
R5 represents a hydrogen atom, a halogen atom, a
hydroxyl radical, CF3, NH2, NHalk, N(alk)2 or an alkyl,
alkoxy or phenyl radical, optionally substituted;
the alkyl radical that can be represented by R1 or the
alkyl, alkoxy or phenyl radical that can be represented
by R5, being optionally substituted with one or more
radicals, which may be identical or different, selected

from the halogen atoms and the hydroxyl, NHalk,
N(alk)2, alkoxy, cycloalkyl, heterocycloalkyl,
heteroaryl and phenyl radicals, these last-mentioned
heteroaryl and phenyl radicals being optionally
substituted with one or more radicals, which may be
identical or different, selected from the halogen atoms
and the hydroxyl, NH2, NHAlk, N(Alk)2, alkyl,
hydroxyalkyl and alkoxy radicals;
R7 and R8 are such that:
either R7 and R8, which may be identical or different,
are such that one of R7 and R8 represents a hydrogen
atom or an alkyl radical,
and the other one of R7 and R8 represents a hydrogen
atom, an alkyl radical optionally substituted with one
or more radicals, which may be identical or different,
selected from the halogen atoms, the hydroxyl, NH2,
NHalk, N(alk)2, NH(phenyl), NH(phenylalk) , alkoxy,
OCF3, cycloalkyl radicals, and the pyrrolidinyl,
piperazinyl, piperidyl, morpholinyl and phenyl
radicals, all these last-mentioned cyclic radicals, as
well as the phenyl residue in the phenylalkyl radical,
themselves being optionally substituted with one or
more radicals, which may be identical or different,
selected from the halogen atoms and the hydroxyl, NH2,
NHAlk, N(alk)2, alkoxy, alkyl and hydroxyalkyl
radicals;
or R7 and R8 form, together with the nitrogen atom to
which they are attached, a radical preferably selected
from the piperidyl, morpholinyl radicals, and the
pyrrolidinyl, piperazinyl and homopiperazinyl radicals,
optionally substituted with one or more radicals, which
may be identical or different, selected from the alkyl

and phenyl radicals, themselves optionally substituted
with one or more radicals selected from the halogen
atoms and the hydroxyl, NH2, NHAlk, N(Alk)2, alkoxy and
cycloalkyl radicals;
all the above alkyl(alk) and alkoxy radicals being
linear or branched and containing at most 6 carbon
atoms;
said products of formula(I) being in all possible
tautomeric and isomeric forms(racemates, enantiomers
and diastereoisomers) , as well as salts of addition of
said products of formula(I) with organic and inorganic
acids or with organic and inorganic bases.
10. Products of formula(I) as defined in any one
of the other claims in which
X-Y represents NH-C(S), N=C-NR7R8 or N=C-R,
R7, R8 and R being selected from all the values defined
in any one of the other claims for R7, R8 and R and the
other substituents R1, R2, R3, R4, R5 and R6 of said
products of formula(I) being selected from all the
values defined in any one of the other claims
respectively for R1, R2, R3, R4, R5 and R6,
said products of formula(I) being in all possible
tautomeric and isomeric forms(racemates, enantiomers
and diastereoisomers), as well as salts of addition of
said products of formula(I) with organic and inorganic
acids or with organic and inorganic bases.
11. Products of formula(I) as defined in any one
of the other claims in which
X-Y represents NH-C(S), N=C-NR7R8 or N=C-R;

R1 represents a hydrogen atom or an alkyl radical
optionally substituted with one or more radicals, which
may be identical or different, selected from the
halogen atoms and the N(alk)2 and alkoxy radicals;
R, which may be identical to or different from R1, is
selected from the values of R1;
R2 represents a hydrogen atom, a halogen atom or an
alkyl radical;
R3 represents a hydrogen atom or an alkyl radical;
R4 represents a hydrogen atom or a halogen atom,
R5 represents a hydrogen atom, a halogen atom or a
hydroxyl, NH2, NHalk, N(alk)2, alkyl, alkoxy or phenyl
radical, the alkyl radical being optionally substituted
with an alkoxy, N(alk)2 or heterocycloalkyl radical and
the phenyl radical being optionally substituted with
one or more radicals, which may be identical or
different, selected from the halogen atoms and the
hydroxyl, NH2, NHalk, N(alk)2, alkyl and alkoxy
radicals;
R6 represents a hydrogen atom, a halogen atom or an
alkyl radical;
and R7 and R8 are such that:
either R7 and R8, which may be identical or different,
are such that one of R7 and R8 represents a hydrogen
atom or an alkyl radical, and the other one of R7 and
R8 represents an alkyl radical optionally substituted
with a cycloalkyl radical;
or R7 and R8 form, together with the nitrogen atom to
which they are attached, a pyrrolidinyl, morpholine,

piperidyl or piperazinyl radical optionally substituted
with an alkyl radical;
said products of formula(I) being in all possible
tautomeric and isomeric forms(racemates, enantiomers
and diastereoisomers), as well as salts of addition of
said products of formula(I) with organic and inorganic
acids or with organic and inorganic bases.
12. Products of formula(I) as defined in any one
of the preceding claims in which
X-Y represents NH-C(S) or N=C-NR7R8;
R1 and R2 which may be identical or different,
represents a hydrogen atom or an alkyl radical;
R3 represents a hydrogen atom;
R4, R5 and R6, which may be identical or different,
represent a hydrogen atom or a halogen atom;
R7 and R8 represent the values defined in any one of
Claims 1 to 4;
all the above alkyl(alk) radicals being linear or
branched and containing at most 6 carbon atoms;
said products of formula(I) being in all possible
tautomeric and isomeric forms(racemates, enantiomers
and diastereoisomers), as well as salts of addition of
said products of formula(I) with organic and inorganic
acids or with organic and inorganic bases.
13. Products of formula(I) as defined in any one
of the other claims, having the following names:
-(5Z)-5-(1H-pyrrolo[2,3-b]pyridin-3-ylmethylene)-2-
thioxoimidazolidin-4-one

- (5Z)-5-[(5-chloro-1H-pyrrolo[2,3-b]pyridin-3-
yl)methylene]-2-thioxoimidazolidin-4-one
- (5Z)-2-[(cyclopropylmethyl)amino]-5-(1H-pyrrolo[2,3-
b]pyridin-3-ylmethylene)-3,5-dihydro-4H-imidazol-4-one
- (5Z)-5-[(5-chloro-1H-pyrrolo[2,3-b]pyridin-3-
yl)methylene]-2-[(cyclopropylmethyl)amino]-3,5-dihydro-
4H-imidazol-4-one
- (5Z)-5-[(6-chloro-1H-pyrrolo[2,3-b]pyridin-3-
yl)methylene]-2-[(cyclopropylmethyl)amino]-3,5-dihydro-
4H-imidazol-4-one
- (5Z)-2-[(cyclopropylmethyl)amino]-3-methyl-5-(1H-
pyrrolo[2,3-b]pyridin-3-ylmethylene)-3,5-dihydro-4H-
imidazol-4-one
- (5Z)-2-butyl-5-(1H-pyrrolo[2,3-b]pyridin-3-
ylmethylene)-3,5-dihydro-4H-imidazol-4-one
- (5Z)-2-azepan-1-yl-5-[(5-chloro-1H-pyrrolo[2,3-
b]pyridin-3-yl)methylidene]-3,5-dihydro-4H-imidazol-4-
one
- 5Z)-5-[(5-chloro-1H-pyrrolo[2,3-b]pyridin-3-
yl)methylidene]-2-piperidin-1-yl-3,5-dihydro-4H-
imidazol-4-one
- 5Z)-5-[(5-chloro-1H-pyrrolo[2,3-b]pyridin-3-
yl)methylidene]-2-[methyl(2-methylpropyl)amino]-3,5-
dihydro-4H-imidazol-4-one
- (5Z)-5-[(5-bromo-1H-pyrrolo[2,3-b]pyridin-3-
yl)methylidene]-2-[(cyclopropylmethyl)amino]-3,5-
dihydro-4H-imidazol-4-one

- (5Z)-2-[(cyclopropylmethyl)amino]-5-[(5-methoxy-1H-
pyrrolo[2,3-b]pyridin-3-yl)methylidene]-3,5-dihydro-4H-
imidazol-4-one
- (5Z)-2-[(cyclopropylmethyl)amino]-5-[(5-fluoro-1H-
pyrrolo[2,3-b]pyridin-3-yl)methylidene]-3,5-dihydro-4H-
imidazol-4-one
- (5Z)-2-azepan-1-yl-5-[(5-fluoro-1H-pyrrolo[2,3-
b]pyridin-3-yl)methylidene]-3,5-dihydro-4H-imidazol-4-
one
- 3-[(Z)-{2-[(cyclopropylmethyl)amino]-5-oxo-l,5-
dihydro-4H-imidazol-4-ylidene}methyl]-1H-pyrrolo[2,3-
b]pyridine-5-carbonitrile
- (5Z)-2-[(cyclopropylmethyl)amino]-5-[(5-phenyl-1H-
pyrrolo[2,3-b]pyridin-3-yl)methylidene]-3,5-dihydro-4H-
imidazol-4-one
- (5Z)-2-[(cyclopropylmethyl)amino]-5-{[5-
(trifluoromethyl)-1H-pyrrolo[2,3-b]pyridin-3-
yl]methylidene}-3,5-dihydro-4H-imidazol-4-one
- (5Z)-5-[(5-chloro-1H-pyrrolo[2,3-b]pyridin-3-
yl)methylidene]-2-(methylsulphanyl)-3,5-dihydro-4H-
imidazol-4-one
- (5Z)-2-butyl-5-[(5-chloro-1H-pyrrolo[2,3-b]pyridin-3-
yl)methylidene]-3,5-dihydro-4H-imidazol-4-one
- (5Z) -2-(3-methylbutyl)-5-(1H-pyrrolo[2,3-b]pyridin-3-
ylmethylidene)-3,5-dihydro-4H-imidazol-4-one
- (5Z)-2-cyclohexyl-5-(1H-pyrrolo[2,3-b]pyridin-3-
ylmethylidene)-3,5-dihydro-4H-imidazol-4-one

- (5Z)-5-[(5-chloro-1H-pyrrolo[2,3-b]pyridin-3-
yl)methylidene]-3-methyl-2-(tetrahydro-2H-pyran-4-yl)-
3,5-dihydro-4H-imidazol-4-one
- (5Z)-5-[(5-chloro-1H-pyrrolo[2,3-b]pyridin-3-
yl)methylidene]-3-methyl-2-(2-methylpropyl)-3,5-
dihydro-4H-imidazol-4-one
- (5Z)-2-(cyclopropylmethyl)-5-(5-chloro-1H-
pyrrolo[2,3-b]pyridin-3-ylmethylidene)-3,5-dihydro-4H-
imidazol-4-one
- (5Z)-2-(1-methylethyl)-5-(5-chloro-1H-pyrrolo[2,3-
b]pyridin-3-ylmethylidene)-3,5-dihydro-4H-imidazol-4-
one
- (5Z)-2-[benzyl(methyl)amino]-5-[(5-chloro-1H-
pyrrolo[2,3-b]pyridin-3-yl)methylidene]-3,5-dihydro-4H-
imidazol-4-one
- (5Z)-5-[(5-chloro-1H-pyrrolo[2,3-b]pyridin-3-
yl)methylidene]-2-[(2-methoxyethyl)(methyl)amino]-3,5-
dihydro-4H-imidazol-4-one
said products of formula(I) being in all possible
isomeric forms(racemates, enantiomers and
diastereoisomers) , as well as salts of addition of said
products of formula(I) with organic and inorganic
acids or with organic and inorganic bases.
14. As medicinal products, the products of formula
(I) as defined in any one of Claims 1 to 13, as well as
salts of addition of said products of formula(I) with
pharmaceutically acceptable inorganic and organic acids
or inorganic and organic bases.
15. As medicinal products, the products of formula
(I) as defined in Claim 13, as well as salts of

addition of said products of formula(I) with
pharmaceutically acceptable inorganic and organic acids
or inorganic and organic bases.
16. Pharmaceutical compositions containing, as
active principle, at least one of the products of
formula(I) as defined in Claims 14 and 15 or a
pharmaceutically acceptable salt of this product or a
prodrug of this product and a pharmaceutically
acceptable cairrier.
17. Use of product(s) of formula(I) as defined in
any one of Claims 1 to 13, or of pharmaceutically
acceptable salts of these products or alternatively of
prodrugs for the preparation of a medicinal product
intended to inhibit the activity of a protein kinase.
18. Use as defined in Claim 17 in which the protein
kinase selected is Cdc7.
19. Use as defined in any one of the preceding
claims in which the protein kinase is in a cell
culture.
20. Use as defined in any one of the preceding
claims in which the protein kinase is in a mammal.
21. Use of a product of formula(I) as defined in
any one of Claims 1 to 13 for the preparation of a
medicinal product intended for the treatment or
prevention of a disease selected from the following
group: disorders of proliferation of blood vessels,
fibrotic disorders, disorders of proliferation of
mesangial cells, metabolic disorders, allergies,
asthmas, thromboses, diseases of the nervous system,
retinopathy, psoriasis, rheumatoid arthritis, diabetes,
muscular degeneration and cancers.

22. Use of a product of formula(I) as defined in
any one of Claims 1 to 13 for the preparation of a
medicinal product intended for the treatment or
prevention of a disease selected from the following
group: disorders of proliferation of mesangial cells,
psoriasis, rheumatoid arthritis, diabetes, muscular
degeneration and cancers.
23. Use of a product of formula(I) as defined in
any one of Claims 1 to 13, for the preparation of a
medicinal product intended for the treatment of
cancers.
24. Use according to Claim 23, intended for the
treatment of solid tumours.
25. Use according to Claim 23 or 24, intended for
the treatment of cancers that are resistant to
cytotoxic agents.
26. Use according to any one of Claims 23 to 25,
intended for the treatment of cancers of the breast,
stomach, ovaries, colon, lung, brain, larynx, lymphatic
system, urogenital tract including bladder and
prostate, and treatment of cancers of the bones and of
the pancreas.
27. Use according to any one of Claims 23 to 25,
intended for the treatment of cancers of the breast, of
the colon or of the lung.
28. Use of a product of formula(I) as defined in
any one of Claims 1 to 13, for the preparation of
medicinal products intended for cancer chemotherapy.
29. Use of a product of formula(I) as defined in
any one of Claims 1 to 13, for the preparation of

medicinal products intended for cancer chemotherapy-
alone or in combination.
30. Products of formula(I) as defined in any one
of Claims 1 to 13 as inhibitors of Cdc7.

The invention relates to products of the formula(I) in which :
X-Y is NH-C(S), N=C-NR7R8, N=C-SR, N=C-R or N=C-OR; R and R1 are H
or optionally substituted cycloalkyl, alkyl, heterocycloalkyl, aryl or heteroaryl,;
R2 is H, Hal or alkyl; R3 is H, Hal, OH, alkyl or alkoxy; R4 is H, Hal, CN or
alkyl; R5 is essentially H, Hal, OH, NR7R8, cycloalkyl, alkyl, alkoxy, heterocycloalkyl,
aryl or heteroaryl, optionally substituted; R6 is H, Hal, OH, NH2,
NHalk, N(alk)2, alkyl or alkoxy; with R7 et R8 being such that one is H or optionally
substituted alk, while the other is H or optionally substituted cycloalkyl,
alkyl, heterocycloalkyl, heteroaryl or aryl; or with R7 and R8 forming together
with N an optionally substituted cyclic radical optionally containing O, S or N.
The invention also relates to isomers and salts thereof used as drugs and essentially
as protein kinase inhibitors, in particular CDC7.

Documents:

1025-KOLNP-2009-(01-09-2014)-CLAIMS.pdf

1025-KOLNP-2009-(01-09-2014)-EXAMINATION REPORT REPLY RECEIVED.pdf

1025-KOLNP-2009-(01-09-2014)-FORM-2.pdf

1025-KOLNP-2009-(01-09-2014)-FORM-3.pdf

1025-KOLNP-2009-(01-09-2014)-FORM-5.pdf

1025-KOLNP-2009-(01-09-2014)-OTHERS.pdf

1025-KOLNP-2009-(01-09-2014)-PETITION UNDER RULE 137-1.pdf

1025-KOLNP-2009-(01-09-2014)-PETITION UNDER RULE 137.pdf

1025-KOLNP-2009-(09-09-2014)-EXAMINATION REPORT REPLY RECEIVED.pdf

1025-KOLNP-2009-(09-09-2014)-OTHERS.pdf

1025-KOLNP-2009-(09-09-2014)-PETITION UNDER RULE 137.pdf

1025-kolnp-2009-abstract.pdf

1025-KOLNP-2009-ASSIGNMENT.pdf

1025-kolnp-2009-claims.pdf

1025-kolnp-2009-correspondence.pdf

1025-kolnp-2009-description (complete).pdf

1025-kolnp-2009-form 1.pdf

1025-KOLNP-2009-FORM 18.pdf

1025-kolnp-2009-form 3.pdf

1025-kolnp-2009-form 5.pdf

1025-kolnp-2009-gpa.pdf

1025-kolnp-2009-international publication.pdf

1025-kolnp-2009-international search report.pdf

1025-kolnp-2009-pct request form.pdf

1025-kolnp-2009-specification.pdf

1025-kolnp-2009-translated copy of priority document.pdf

abstract-1025-kolnp-2009.jpg


Patent Number 264229
Indian Patent Application Number 1025/KOLNP/2009
PG Journal Number 51/2014
Publication Date 19-Dec-2014
Grant Date 16-Dec-2014
Date of Filing 17-Mar-2009
Name of Patentee SANOFI-AVENTIS
Applicant Address 174, AVENUE DE FRANCE, F-75013 PARIS
Inventors:
# Inventor's Name Inventor's Address
1 BACQUE, ERIC C/O SANOFI-AVENTIS, DÉPARTEMENT DES BREVETS, 174 AVENUE DE FRANCE, F-75013 PARIS
2 LEROY, VINCENT C/O SANOFI-AVENTIS, DÉPARTEMENT DES BREVETS, 174 AVENUE DE FRANCE, F-75013 PARIS
3 CONSEILLER, EMMANUEL C/O SANOFI-AVENTIS, DÉPARTEMENT DES BREVETS, 174 AVENUE DE FRANCE, F-75013 PARIS
4 STEINMETZ, ANKE C/O SANOFI-AVENTIS, DÉPARTEMENT DES BREVETS, 174 AVENUE DE FRANCE, F-75013 PARIS
5 RONAN, BAPTISTE C/O SANOFI-AVENTIS, DÉPARTEMENT DES BREVETS, 174 AVENUE DE FRANCE, F-75013 PARIS
6 LETALLEC, JEAN-PHILIPPE C/O SANOFI-AVENTIS, DÉPARTEMENT DES BREVETS, 174 AVENUE DE FRANCE, F-75013 PARIS
PCT International Classification Number C07D 471/04
PCT International Application Number PCT/FR2007/001651
PCT International Filing date 2007-10-10
PCT Conventions:
# PCT Application Number Date of Convention Priority Country
1 0608924 2006-10-12 France