Title of Invention

TETRAHYDRO-INDAZOLE CANNABINO ID MODULATORS

Abstract This invention is directed to a tetrahydro-indazole cannabinoid modulators compound of formula I: and a method for use in treating, ameliorating or preventing a cannabinoid receptor mediated syndrome, disorder or disease.
Full Text TETRAHYDRO-INDAZOLE CANNABINOID MODULATORS
CROSS REFERENCE TO RELATED APPLICATIONS
This present application claims benefit of U.S. Provisional Patent Application
Serial No. 60/55589O, filed March 24, 2004, which is incorporated herein by reference in
its entirety and for all purposes.
FIELD OF THE INVENTION
This invention is directed to tetrahydro-indazole cannabinoid (CB) modulator
compounds and a method for use in treating, ameliorating or preventing a cannabinoid
receptor mediated syndrome, disorder or disease.
BACKGROUND OF THE INVENTION
Before the discovery of the cannabinoid CB1 and CB2 receptors, the term
cannabinoid was used to describe the biologically active components of cannabis sativa,
the most abundant of which are delta-9-tetrahydrocannabinol (THC) and cannabidiol.

THC is a moderately potent partial agonist of the CB1 and CB2 receptors and is
considered the "classical cannabinoid," a term now used to refer to other analogues and
derivatives that are structurally related to the tricyclic dibenzopyran THC core. The term
"nonclassical cannabinoid" refers to cannabinoid agonists structurally related to
cannabidiol.
Pharmacological investigations have concentrated on selective CB receptor
modulators of the pyrazole structural class, which include SR 141716A (the
monohydrochloride salt of SR 141716) and SR 144528. SR 141716A was the first potent
and selective CB1 receptor antagonist.


Pyrazole cannabinoid modulators are one among the many different structural
classes which have aided the development of CB pharmacology, have helped to determine
the biological effects mediated by the cannabinoid receptors, will lead to further
refinement of current compounds and will be a source of new chemical classes in the
future.
Certain compounds (including SR 141716, SR 144528 and the like) that were
originally classified as selective antagonists are now considered to act as "inverse
agonists" rather than pure antagonists. Inverse agonists have the ability to decrease the
constitutive level of receptor activation in the absence of an agonist instead of only
blocking the activation induced by agonist binding at the receptor. The constitutive
activity of CB receptors has important implications since there is a level of continuous
signaling by both CB1 and CB2 even in the absence of an agonist. For example, SR
141716A increases CB1 protein levels and sensitizes cells toward agonist action, thus
indicating that inverse agonists may be another class of ligands used to modulate the
endocannabinoid system and the downstream signaling pathways activated by CB
receptors.
Advances in the synthesis of CB and cannabimimetic ligands have furthered the
development of receptor pharmacology and provided evidence for the existence of
additional cannabinoid receptor sub-types. However, there remains an ongoing need for
the identification and development of CB1 or CB2 receptor cannabinoid modulators for
the treatment of a variety of CB receptor modulated syndromes, disorders and diseases.

DETAILED DESCRIPTION OF THE INVENTION
This invention is directed to a compound of formula I:

wherein
the dashed lines between positions 2-3 and positions 3a-7a in formula I represent locations
for two double bonds present when X1R1 is present;
the dashed lines between positions 3-3a and positions 7a-1 in formula I represent locations
for two double bonds present when X2R2 is present;
the dashed line between positions 7 and X4R4 in formula I represents the location for a
double bond;
X1 is absent, or is lower alkylene;
X2 is absent, or is lower alkylene;
wherein only one of X1R1 and X2R2 are present;
X3 is absent, or is lower alkylene, lower alkylidene or -NH-;
when the dashed line between positions 7 and X4R4 is absent, X4 is absent, or is lower
alkylene;
when the dashed line between positions 7 and X4R4 is present, X4 is absent;
X5 is absent, or is lower alkylene;
R1 is selected from the group consisting of aryl, C3-C12 cycloalkyl, or heterocyclyl, any of
which are optionally substituted at one or more positions by halogen, lower alkyl,
hydroxy or lower alkoxy;

R2 is selected from the group consisting of aryl, C3-C12 cycloalkyl, or heterocyclyl, any of
which are optionally substituted at one or more positions by halogen, lower alkyl,
hydroxy or lower alkoxy;
R3 is

when the dashed line between positions 7 and X4R4 is absent, R4 is hydrogen; hydroxy;
lower alkyl; lower alkoxy; halogen; aryl optionally substituted at one or more
positions by hydroxy, lower alkyl, lower alkoxy or halogen; heterocyclyl optionally
substituted at one or more positions by hydroxy, lower alkyl, lower alkoxy or
halogen; or C3-C2 cycloalkyl optionally substituted at one or more positions by
hydroxy, lower alkyl, lower alkoxy or halogen; .
when the dashed line between positions 7 and X4R4 is present, R4 is CH-aryl wherein aryl
is optionally substituted at one or more positions by hydroxy, lower alkyl, lower
alkoxy or halogen; or CH-heterocyclyl wherein heterocyclyl is optionally
substituted at one or more positions by hydroxy, lower alkyl, lower alkoxy or
halogen;
R5 is hydrogen; hydroxy; lower alkyl; lower alkoxy; hydroxy-lower alkylene-; carboxy;
alkoxycarbonyl; aryloxycarbonyl; aryl-alkoxycarbonyl; NHR10; -C(O)NRnRiia;
-O-C(O)-R,2; oxo; or-C(O)R13;
R6 is absent, or is -CH(R6a)-;
R6a is hydrogen; lower alkyl; or aryl optionally substituted by one or more of halogen,
hydroxy, lower alkoxy, carboxy or alkoxycarbonyl;
R7 is lower alkoxy; aryl optionally substituted by one or more hydroxy, halogen, lower
alkyl, carboxy, alkoxycarbonyl, lower alkoxy, hydroxy-alkylene-, -NH(R6a)»
aryloxy, arylalkoxy, or aryl-lower alkylene; C3-C12 cycloalkyl optionally
substituted by one or more hydroxy, halogen, lower alkyl, lower

alkyl-aminocarbonyl, carboxy, alkoxycarbonyl, lower alkoxy, lower alkoxy-lower
alkylene-, hydroxy-alkylene-, aryloxy, arylalkoxy, arylalkoxy-lower alkylene-
optionally substituted on aryl by one or more hydroxy, halogen or lower alkyl; or
aryl-lower alkylene; heterocyclyl optionally substituted by one or more hydroxy,
halogen, lower alkyl, carboxy, alkoxycarbonyl, lower alkoxy, lower alkoxy-lower
alkylene-, hydroxy-alkylene-, aryloxy or arylalkoxy;
R8, R8a, R9 and R9a are each individually hydrogen; lower alkyl; -NHR15; aryl optionally
substituted by one or more hydroxy, halogen, -NH(R6a), -SO2-NH(R6a), lower
alkyl, carboxy, alkoxycarbonyl, lower alkoxy, hydroxy-alkylene-, aryloxy or
arylalkoxy; C3-C12 cycloalkyl optionally substituted by one or more hydroxy,
halogen, amino, lower alkyl, carboxy, alkoxycarbonyl, lower alkoxy,
hydroxy-alkylene-, aryloxy, arylalkoxy, or lower alkylene; or heterocyclyl
optionally substituted by one or more hydroxy, halogen, amino, lower alkyl,
carboxy, alkoxycarbonyl, lower alkoxy, hydroxy-alkylene-, aryloxy or arylalkoxy;
Rio is hydrogen, C1-C10 alkoxycarbonyl optionally substituted at one or more positions by
hydroxy, halogen or aryl; -C(O)CF3; -SO2-NR14R14a; -C(O)-heterocyclyl optionally
substituted at one or more positions by hydroxy, halogen or aryl; -C(O)NR14R14a;
-SO2-aryl; -SO2R14; or SO2NR14R14a;
R11, R11a,R12, R13, R14 and R14a and R15 are each individually hydrogen; C1-C10 alkyl;
heterocyclyl; C3-C12 cycloalkyl; or aryl optionally substituted by lower alkyl,
hydroxy, alkoxy, halogen -SO2-N(R6a)2, heterocyclyl or aryl-lower alkylene-;
Z1 is absent; -NH-; or is lower alkylene optionally substituted at one or more positions by
halogen, hydroxy, lower alkoxy, carboxy or lower alkoxycarbonyl;
Z2 is absent; or is lower alkylene optionally substituted at one or more positions by aryl,
cycloalkyl, halogen, hydroxy, lower alkyl, lower alkoxy, carboxy, alkoxycarbonyl
or aryl;
or a pharmaceutically acceptable salt, isomer, prodrug, metabolite or polymorph thereof.
An example of the present invention is a compound of formula (I) wherein X1 is
absent, or is lower alkylene, and R1 is C3-C12 cycloalkyl; or aryl optionally substituted at
one or more positions by lower alkyl, lower alkoxy or halogen.

An example of the present invention is a compound of formula (I) wherein the
dashed line between positions 7 and X4R4 is absent; X4 is absent, or is lower alkylene; and,
R4 is hydrogen; hydroxy; lower alkyl; lower alkoxy; halogen; aryl optionally substituted at
one or more positions by lower alkoxy or halogen; heterocyclyl optionally substituted at
one or more positions by halogen; or C3-C8 cycloalkyl.
An example of the present invention is a compound of formula (I) wherein the
dashed line between positions 7 and X4R4 is absent; X4 is absent; and, R4 is hydrogen.
An example of the present invention is a compound of formula (I) wherein R3 is
-R6C(O)NHZ2R9; R6 is absent; Z2 is absent; or is lower alkylene optionally substituted by
lower alkyl, lower alkoxy, carboxy, lower alkoxycarbonyl, hydroxy or halogen; and, R9 is
aryl optionally substituted by one or more hydroxy, halogen, -NH(R8a), -SO2-NH(R6a),
lower alkyl, lower alkoxy or arylalkoxy; C5-C2 cycloalkyl optionally substituted at one or
more positions by lower alkyl, lower alkoxy, hydroxy, amino, halogen or lower
alkoxycarbonyl; or heterocyclyl.
An example of the present invention is a compound of formula (I) wherein R3 is
-R6C(O)Z1R7; R6 is absent; and, R7 is lower alkoxy; aryl optionally substituted by one or
more hydroxy, lower alkoxy, -NH(R8a) or arylalkoxy; C3-C2 cycloalkyl optionally
substituted by one or more lower alkyl, lower alkyl-aminocarbonyl, carboxy,
alkoxycarbonyl, lower alkoxy-lower alkylene-, hydroxy-alkylene-, arylalkoxy-lower
alkylene- optionally substituted on aryl by one or more halogen; or heterocyclyl optionally
substituted by one or more lower alkyl, alkoxycarbonyl or lower alkoxy-lower alkylene-.
An example of the present invention is a compound of formula (I) wherein X3 is
lower alkylidene; R3 is -SO2NHR8; and, R9 is aryl or C5-C2 cycloalkyl.
An example of the present invention is a compound of formula (I) wherein X2 is
absent, or is lower alkylene; and, R2 is C3-C12 cycloalkyl; or aryl optionally substituted at
one or more positions by lower alkyl, lower alkoxy or halogen.
An example of the present invention is a compound of formula (I) wherein the
dashed line between positions 7 and X4R4 is present, X4 is absent; and, R4 is CH-aryl
wherein aryl is optionally substituted at one or more positions by hydroxy, lower alkyl,

lower alkoxy or halogen; or CH-heterocyclyl wherein heterocyclyl is optionally substituted
at one or more positions by hydroxy, lower alkyl, lower alkoxy or halogen.
An example of the present invention is a compound of formula (I) wherein the
dashed line between positions 7 and X4R4 is present, X4 is absent; and, R4 is CH-aryl
wherein aryl is optionally substituted at one or more positions by lower alkyl, lower
alkoxy or halogen; or CH-heterocyclyl, wherein heterocyclyl is optionally substituted at
one or more positions by lower alkyl, lower alkoxy or halogen.
An example of the present invention is a compound of formula (I) wherein the
dashed line between positions 7 and X4R4 is present, X4 is absent; and, R4 is CH-phenyl,
CH-thienyl or CH-furyl, wherein phenyl, thienyl or furyl is each optionally substituted at
one or more positions by lower alkyl, lower alkoxy or halogen.
An example of the present invention is a compound of formula (I) wherein X5 is
absent; and, R5 is hydrogen; hydroxy; lower alkyl; hydroxy-lower alkylene-; carboxy;
lower alkoxycarbonyl; aryl-alkoxycarbonyl; NHR10; -C(O)NR11R11a; -O-C(O)-R12; or oxo.
An example of the present invention is a compound of formula (I) wherein R10 is
hydrogen; C1-C10 alkoxycarbonyl; -C(O)CF3; -C(O)-heterocyclyl; -C(O)NR14R14a; or
-SO2NR14R14a; and wherein R11, R11a, R12, R14 and R14a are each individually hydrogen;
C1-C10 alkyl; or aryl optionally substituted by lower alkyl, heterocyclyl or aryl-lower
alkylene-.
An example of the present invention is a compound of formula (Ia)

























































































and pharmaceutically acceptable forms thereof.
DEFINITIONS
As used herein, the'following terms have the following meanings:
The term "alkyl" means a saturated branched or straight chain monovalent
hydrocarbon radical of up to 10 carbon atoms. Alkyl typically includes, but is not
limited to, methyl, ethyl, propyl, isopropyl, n-butyl, t-butyl, pentyl, hexyl, heptyl and
the like.
The term "lower alkyl" means an alkyl radical of up to 4 carbon atoms. The
point of attachment may be on any alkyl or lower alkyl carbon atom and, when further
substituted, substituent variables may be placed on any carbon atom.
The term "alkvlene" means a saturated branched or straight chain monovalent
hydrocarbon linking group of up to 10 carbon atoms, whereby the linking group is
derived by the removal of one hydrogen atom each from two carbon atoms. Alkylene
typically includes, but is not limited to, methylene, ethylene, propylene, isopropylene,
n-butylene, t-butylene, pentylene, hexylene, heptylene and the like. The term "lower
alkylene" means an alkylene linking group of up to 4 carbon atoms. The point of
attachment may be on any alkylene or lower alkylene carbon atom and, when further
substituted, substituent variables may be placed on any carbon atom.
The term "alkylidene" means an alkylene linking group of from 1 to 10 carbon
atoms having at least one double bond formed between two adjacent carbon atoms,
wherein the double bond is derived by the removal of one hydrogen atom each from the
two carbon atoms. Atoms may be oriented about the double bond in either the cis (E)
or trans (Z) conformation. Alkylidene typically includes, but is not limited to,
methylidene, vinylidene, propylidene, iso-propylidene, methallylene, allylidene (2-
propenylidene), crotylene (2-butenylene), prenylene β-methyl-2-butenylene) and the
like. The term "lower alkylidene" means a radical or linking group of from 1 to 4

carbon atoms.The ment may be on any alkylidene or lower alkylidene
carbon atom and, when further substituted, substituent variables may be placed on any
carbon atom.
The term "alkoxy" means an alkyl, alkylene or alkylidene radical of up to 10 carbon atoms attached via an oxygen atom, whereby the point of attachment is formed
by the removal of the hydrogen atom from a hydroxide substituent on a parent radical.
The term "lower alkoxy" means an alkyl, alkylene or alkylidene radical of up to 4
carbon atoms. Lower alkoxy typically includes, but is not limited to, methoxy, ethoxy,
propoxy, butoxy and the like. When further substituted, substituent variables may be
placed on any alkoxy carbon atom.
The term "cycloalkyl" means a saturated or partially unsaturated monocyclic,
polycyclic or bridged hydrocarbon ring system radical or linking group. A ring of 3 to
20 carbon atoms may be designated by C3-20 cycloalkyl; a ring of 3 to 12 carbon atoms R10 designated by C3-12 cycloalkyl, a ring of 3 to 8 carbon atoms may be designated
by C3-8 cycloalkyl and the like.
Cycloalkyl typically includes, but is not limited to, cyclopropyl, cyclobutyl,
cyclopentyl, cyclohexyl, cyclohexenyl, cycloheptyl, cyclooctyl, indanyl, indenyl,
1,2,3,4-tetrahydro-naphthaIenyl, 5,6,7,8-tetrahydro-naphthalenyl,
6,7,8,9-tetrahydro-5H-benzocycloheptenyl, 5,6,7,8,9,10-hexahydro-benzocyclooctenyl,
fluorenyl, bicyclo[2.2.1]heptyl, bicyclo[2.2.1]heptenyl, bicyclo[2.2.2]octyl,
bicyc!o[3.1.1]heptyl, bicyclo[3.2.1]octyl, bicyclo[2.2.2]octenyl, bicyclo[3.2.1]octenyl,
adamantanyl, octahydro-4,7-methano-1H-indenyl, octahydro-2,5-methano-pentalenyl
and the like. When further substituted, substituent variables may be placed on any ring
carbon atom.
The term "heterocyclyl' means a saturated, partially unsaturated or unsaturated
monocyclic, polycyclic or bridged hydrocarbon ring system radical or linking group,
wherein at least one ring carbon atom has been replaced with one or more heteroatoms
independently selected from N, O or S. A heterocyclyl ring system further includes a
ring system having up to 4 nitrogen atom ring members or a ring system having from 0 to 3 nitrogen atom ring members and 1 oxygen or sulfur atom ring member. When
allowed by available valences, up to two adjacent ring members may be a heteroatom,
wherein one heteroatom is nitrogen and the other is selected from N, O or S. A
heterocyclyl radical is derived by the removal of one hydrogen atom from a single

carbon or nitrozen ring atom.A heterocyclyl linking group is derived by the removal
of two hydrogen atoms each from either carbon or nitrogen ring atoms.
Heterocyclyl typically includes, but is not limited to, furyl, thienyl, 2H-pyrrole,
2-pyrrolinyl, 3-pyrrolinyl, pyrrolidinyl, pyrrolyl, 1,3-dioxoIanyl, oxazolyl, thiazolyl,
imidazolyl, 2-imidazolinyl (also referred to as 4,5-dihydro-1H-imidazolyl),
imidazolidinyl, 2-pyrazolinyl, pyrazolidinyl, pyrazolyl, isoxazolyl, isothiazolyl,
oxadiazolyl, triazolyl, thiadiazolyl, tetrazolyl, 2H-pyran, 4H-pyran, pyridinyl,
piperidinyl, 1,4-dioxanyl, morpholinyl, 1,4-dithianyl, thiomorpholinyl, pyridazinyl,
pyrimidinyl, pyrazinyl, piperazinyl, azepanyl, indolizinyl, indolyl, isoindolyl,
3H-indolyl, indolinyl, benzo[b]furyl, benzo[b]thienyl, 1H-indazolyl, benzimidazolyl,
benzthiazolyl, purinyl, 4H-quinolizinyl, quinolinyl, isoquinolinyl, cinnolinyl,
phthalzinyl, quinazolinyl, quinoxalinyl, 1,8-naphthyridinyl, pteridinyl, quinuclidinyl,
hexahydro-l,4-diazepinyl, 1,3-benzodioxolyl (also known as
1,3-methylenedioxyphenyl), 2,3-dihydro-l,4-benzodioxinyl (also known as
1,4-ethylenedioxyphenyl), benzo-dihydro-furyl, benzo-tetrahydro-pyranyl,
benzo-dihydro-thienyl, 5,6,7,8-tetrahydro-4H-cyclohepta(A)thienyl, 5,6,7-
trihydro-4H-cyclohexa(b)thienyl, 5,6-dihydro-4H-cyclopenta(b)thienyl, 2-aza-
bicyclo[2.2.1]heptyl, l-aza-bicycIo[2.2.2]octyl, 8-aza-bicyclo[3.2.1]octyl, 7-oxa-
bicyclo[2.2.1]heptyl and the like.
The term "aryl" means an unsaturated, conjugated it electron monocyclic or
polycyclic hydrocarbon ring system radical or linking group of 6, 9, 10 or 14 carbon
atoms. An aryl radical is derived by the removal of one hydrogen atom from a single
carbon ring atom. An arylene linking group is derived by the removal of two hydrogen
atoms each of two carbon ring atoms. Aryl typically includes, but is not limited to,
phenyl, naphthalenyl, azulenyl, anthracenyl and the like.
The term "carbonyl" means a linking group of the formula -C(O)- or -C(=O)-.
The term "alkoxycarbonyl" means a radical of the formula -C(O)O-alkyl.
The term "carboxy" means a radical of the formula -COOH or -CO2H.
The term "aryloxy" means a radical of the formula -O-aryl.
The term "aryloxycarbonvl" means a radical of the formula -C(O)O-aryl.
The term "arvlalkoxycarbonvl" means a radical of the formula
-C(O)O-alkyl-aryl.
The term "halo" or "halogen" means fluoro, chloro, bromo or iodo.

means one or more hydrogen atoms on a core molecule
have been replaced with one or more radicals or linking groups, wherein the linking
group, by definition is also further substituted.
The term "dependently selected" means one or more substituent variables are present in a specified combination (e.g. groups of substituents commonly appearing in a
tabular list).
The substituent nomenclature used in the disclosure of the present invention
was derived using nomenclature rules well known to those skilled in the art (e.g.,
IUPAC).
PHARMACEUTICAL PREPARATIONS AND METHODS OF USE
The compounds of the present invention may also be present in the form of
pharmaceutically acceptable salts. For use in medicines, the salts of the compounds of this
invention refer to non-toxic "pharmaceutically acceptable salts." FDA approved
pharmaceutically acceptable salt forms (Ref. InternationalJ. Pharm. 1986, 33, 201-217; J.
Pharm. Sci., 1977, Jan, 66(1), p1) include pharmaceutically acceptable acidic/anionic or
basic/cationic salts.
Pharmaceutically acceptable acidic/anionic salts include, and are not limited to
acetate, benzenesulfonate, benzoate, bicarbonate, bitartrate, bromide, calcium edetate,
camsylate, carbonate, chloride, citrate, dihydrochloride, edetate, edisylate, estolate,
esylate, fumarate, glyceptate, gluconate, glutamate, glycollylarsanilate,
hexylresorcinate, hydrabamine, hydrobromide, hydrochloride, hydroxynaphthoate,
iodide, isethionate, lactate, lactobionate, malate, maleate, mandelate, mesylate,
mefhylbromide, methylhitrate, methylsulfate, mucate, napsylate, nitrate, pamoate,
pantothenate, phosphate/diphosphate, polygalacturonate, salicylate, stearate, subacetate,
succinate, sulfate, tannate, tartrate, teoclate, tosylate and triethiodide. Organic or
inorganic acids also include, and are not limited to, hydroiodic, perchloric, sulfuric,
phosphoric, propionic, glycolic, methanesulfonic, hydroxyethanesulfonic, oxalic, 2-
naphthalenesulfonic, p-toluenesulfonic, cyclohexanesulfamic, saccharinic or
trifluoroacetic acid.
Pharmaceutically acceptable basic/cationic salts include, and are not limited to
aluminum, 2-amino-2-hydroxymethyl-propane-l,3-diol (also known as
tris(hydroxyrnethyl)aminomethane, tromethane or "TRIS"), ammonia, benzathine,
t-butylamine, calcium, calcium gluconate, calcium hydroxide, chloroprocaine, choline,

cyclohexylamine, diethanolamine,
ethylenediamine, lithium, LiOMe, L-lysine, magnesium, meglumine, NH3, NH4OH,
N-methyl-D-glucamine, piperidine, potassium, potassium-t-butoxide, potassium
hydroxide (aqueous), procaine, quinine, sodium, sodium carbonate,
sodium-2-ethylhexanoate (SEH), sodium hydroxide, triethanolamine (TEA) or zinc.
The present invention includes within its scope prodrugs and metabolites of the
compounds of this invention. In general, such prodrugs and metabolites will be
functional derivatives of the compounds that are readily convertible in vivo into an
active compound.
Thus, in the methods of treatment of the present invention, the term
"administering" shall encompass the means for treating, ameliorating or preventing a
syndrome, disorder or disease described herein with a compound specifically disclosed
or a compound, or prodrug or metabolite thereof, which would obviously be included
within the scope of the invention albeit not specifically disclosed for certain of the
instant compounds.
The term "prodrug" means a pharmaceutically acceptable form of a functional
derivative of a compound of the invention (or a salt thereof), wherein the prodrug may
be: 1) a relatively active precursor which converts in vivo to an active prodrug
component; 2) a relatively inactive precursor which converts in vivo to an active
prodrug component; or 3) a relatively less active component of the compound that
contributes to therapeutic biological activity after becoming available in vivo (i.e., as a
metabolite). Conventional procedures for the selection and preparation of suitable
prodrug derivatives are described in, for example, "Design of Prodrugs", ed. H.
Bundgaard, Elsevier, 1985.
The term "metabolite" means a pharmaceutically acceptable form of a
metabolic derivative of a compound of the invention(or a salt thereof), wherein the
derivative is a relatively less active component of the compound that contributes to
therapeutic biological activity after becoming available in vivo.
The present invention contemplates compounds of various isomers and mixtures
thereof. The term "isomer" refers to compounds that have the same composition and
molecular weight but differ in physical and/or chemical properties. Such substances
have the same number and kind of atoms but differ in structure. The structural
difference may be in constitution (geometric isomers) or in an ability to rotate the plane


The term "stereoisomer" refers to isomers of identical constitution that differ in
the arrangement of their atoms in space. Enantiomers and diastereomers are
stereoisomers wherein an asymmetrically substituted carbon atom acts as a chiral
center. The term "chiral" refers to a molecule that is not superposable on its mirror
image, implying the absence of an axis and a plane or center of symmetry. The term
"enantiomer" refers to one of a pair of molecular species that are mirror images of each
other and are not superposable. The term "diastereomer" refers to stereoisomers that
are not related as mirror images. The symbols "R" and "S" represent the configuration
of substituents around a chiral carbon atom(s). The symbols "R*" and "S*" denote the
relative configurations of substituents around a chiral carbon atom(s). .
The term "racemate" or "racemic mixture" refers to a compound of equimolar
quantities of two enantiomeric species, wherein the compound is devoid of optical
activity. The term "optical activity" refers to the degree to which a chiral molecule or
nonracemic mixture of chiral molecules rotates the plane of polarized light.
The term "geometric isomer" refers to isomers that differ in the orientation of
substituent atoms in relationship to a carbon-carbon double bond, to a cycloalkyl ring
or to a bridged bicyclic system. Substituent atoms (other than H) on each side of a
carbon-carbon double bond may be in an E or Z configuration. In the "E" (opposite
sided) or "chair" configuration, the substituents are on opposite sides in relationship to
the carbon- carbon double bond; in the "Z" (same sided) or "boat" configuration, the
substituents are oriented on the same side in relationship to the carbon-carbon double
bond. Substituent atoms (other than H) attached to a carbocyclic ring may be in a cis or
trans configuration. In the "cis" configuration, the substituents are on the same side in
relationship to the plane of the ring; in the "trans" configuration, the substituents are on
opposite sides in relationship to the plane of the ring. Compounds having a mixture of
"cis" and "trans" species are designated "cis/trans". Substituent atoms (other than H)
attached to a bridged bicyclic system may be in an "endo" or "exo" configuration. In
the "endo" configuration, the substituents attached to a bridge (not a bridgehead) point
toward the larger of the two remaining bridges; in the "exo" configuration, the
substituents attached to a bridge point toward the smaller of the two remaining bridges.
It is to be understood that the various substituent stereoisomers, geometric
isomers and mixtures thereof used to prepare compounds of the present invention are

can be prepared synthetically from commercially
available starting materials or can be prepared as isomeric mixtures and then obtained
as resolyed isomers using techniques well-known to those of ordinary skill in the art.
The isomeric descriptors "R," "S," "S*," "R*," "E," "Z," "cis," "trans," "exo"
and "endo" are used as described herein for indicating atom configuration(s) relative to
a core molecule and are intended to be used as defined in the literature (IUPAC
Recommendations for Fundamental Stereochemistry (Section E), PureAppl. Chem.,
1976,45:13-30).
The compounds of the present invention R10 prepared as individual isomers
by either isomer-specific synthesis or resolyed from an isomeric mixture. Conventional
resolution techniques include forming the free base of each isomer of an isomeric pair
using an optically active salt (followed by fractional crystallization and regeneration of
the free base), forming an ester or amide of each of the isomers of an isomeric pair
(followed by chromatographic separation and removal of the chiral auxiliary) or
resolying an isomeric mixture of either a starting material or a final product using
preparative TLC (thin layer chromatography) or a chiral HPLC column.
Furthermore, compounds of the present invention may have one or more
polymorph or amorphous crystalline forms and as such are intended to be included in
the scope of the invention. In addition, some of the compounds may form solyates with
water (i.e., hydrates) or common organic solyents, and such are also intended to be
encompassed within the scope of this invention.
During any of the processes for preparation of the compounds of the present
invention, it may be necessary and/or desirable to protect sensitive or reactive groups
on any of the molecules concerned. This may be achieved by means of conventional
protecting groups, such as those described in Protective Groups in Organic Chemistry.
ed. J.F.W. McOmie, Plenum Press, 1973; and T.W. Greene & P.G.M. Wuts, Protective
Groups in Organic Synthesis, John Wiley & Sons, 1991. The protecting groups may be
removed at a convenient subsequent stage using methods known in the art.
Therapeutic Use
CB1 and CB2 cannabinoid receptors belong to the G-protein-coupled receptor
(GCPR) family, a receptor super-family with a distinctive pattern of seven
transmembrane domains, which inhibits N-type calcium channels and /or adenylate
cyclase to inhibit Q-type calcium channels. CB1 receptors are present in the CNS,

:" lJpftd6AMatliy»'fei)re®sMln iram regions associated with memory and movement such
as the hippocampus (memory storage), cerebellum (coordination of motor function,
posture and balance), basal ganglia (movement control), hypothalamus (thermal
regulation, neuroendocrine release, appetite), spinal cord (nociception), cerebral cortex
(emesis) and periphery regions such as lymphoid organs (cell mediated and innate
immunity), vascular smooth muscle cells (blood pressure), gastrointestinal tract
(duodenum, ileum and myenteric plexus for emesis control), lung smooth muscle cells
(bronchodilation), eye ciliary body (intraocular pressure). CB2 receptors appear to be
primarily expressed peripherally in lymphoid tissue (cell mediated and innate
immunity), peripheral nerve terminals (peripheral nervous system), spleen immune
cells (immune system modulation) and retina (intraocular pressure) and in the CNS in
cerebellar granule cell mRNA (coordination of motor function). Pharmacological and
physiological evidence also suggests that there may be other cannabinoid receptor
subtypes that have yet to be cloned and characterized.
Where activation or inhibition of a CB receptor appears to mediate various
syndromes, disorders or diseases, potential areas of clinical application include, but are
not limited to, controlling appetite, regulating metabolism, diabetes, reducing
glaucoma-associated intraocular pressure, treating social and mood disorders, treating
seizure-related disorfders, treating substance abuse disorders, enhancing learning,
cognition and memory, controlling organ contraction and muscle spasm, treating
respiratory disorders, treating locomotor activity or movement disorders, treating
immune and inflammation disorders, regulating cell growth, use in pain management,
use as a neuroprotective agent and the like.
Thus, cannabinoid receptor modulators, including the compounds of the
formula (I), (Ia), (Ib) or (Ic) of the present invention, are useful for treating,
ameliorating or preventing a cannabinoid receptor mediated syndrome, disorder or
disease including, but not limited to, controlling appetite, regulating metabolism,
diabetes, glaucoma-associated intraocular pressure, pain, social and mood disorders,
seizure-related disorders, substance abuse disorders, learning, cognition and/or memory
disorders, respiratory disorders, locomotor activity disorders, movement disorders,
immune disorders or inflammation disorders, controlling organ contraction and muscle
spasm, enhancing learning, cognition and/or memory, regulating cell growth, providing
neuroprotection and the like.

InvOTrabrns? directed to a method for treating, ameliorating or
preventing a cannabinoid receptor mediated syndrome, disorder or disease in a subject
in need thereof comprising the step of administering to the subject an effective amount
of a compound of formula (I).
The present invention is directed to a method for treating, ameliorating or
preventing a cannabinoid receptor mediated syndrome, disorder or disease in a subject
in need thereof comprising the step of administering to the subject an effective amount
of a compound of formulae (Ia), (Ib) or (Ic) or prodrug, metabolite, or composition
thereof.
The present invention is directed to a method for treating, ameliorating or
preventing a cannabinoid receptor mediated syndrome, disorder or disease in a subject
in need thereof comprising the step of administering to the subject a combination
product and/or therapy comprising an effective amount of a compound of formula (I)
and a therapeutic agent.
The present invention is directed to a method for treating, ameliorating or
preventing a cannabinoid receptor mediated syndrome, disorder or disease in a subject
in need thereof comprising the step of administering to the subject a combination
product and/or therapy comprising an effective amount of a compound of formulae (Ia),
(Ib), or (Ic) and a therapeutic agent.
Therapeutic agents contemplated for use in a combination product and/or
therapies of the present invention include an anticonvulsant or a contraceptive agent.
The anticonvulsant agents include, and are not limited to, topiramate, analogs of
topiramate, carbamazepine, valproic acid, lamotrigine, gabapentin, phenytoin and the
like and mixtures or pharmaceutically acceptable salts thereof. The contraceptive
agents include, and are not limited to, such as progestin-only contraceptives and
contraceptives that include both a progestin component and an estrogen component.
The invention further includes a pharmaceutical composition wherein the contraceptive
is an oral contraceptive, and wherein the contraceptive optionally includes a folic acid
component.
The invention also includes a method of contraception in a subject comprising
the step of administering to the subject a composition, wherein the composition
comprises a contraceptive and a CB1 receptor inverse-agonist or antagonist compound
of formulae (I), (Ia), (Ib) or (Ic), wherein the composition reduces the urge to smoke in

C "fi9's||j£ibCMi/eir SMM»lht llbject in losing weight.
The present invention includes cannabinoid receptor modulators useful for
treating, ameliorating or preventing a CB receptor mediated syndrome, disorder or
disease. The usefulness of a compound of the present invention or composition thereof
as a CB modulator can be determined according to the methods disclosed herein. The
scope of such use includes treating, ameliorating or preventing a plurality of CB
receptor mediated syndromes, disorders or diseases.
The present invention is also directed to a method for treating, ameliorating or
preventing a CB receptor mediated syndrome, disorder or disease in a subject in need
thereof wherein the syndrome, disorder or disease is related to appetite, metabolism,
diabetes, glaucoma-associated intraocular pressure, social and mood disorders, seizures,
substance abuse, learning, cognition or memory, organ contraction or muscle spasm,
respiratory disorders, locomotor activity or movement disorders, immune and
inflammation disorders, unregulated cell growth, pain management, neuroprotection
and the like.
A compound of formulae (I), (Ia), (Ib) or (Ic) for use as a CB receptor
modulator includes a compound having a mean inhibition constant (IC50) for CB
receptor binding activity of between about 5 uM to about 0.01 nM; between about 1
uM to about 0.01 nM; between about 800 nM to about 0.01 nM; between about 200 nM to about 0.01 nM; between about 100 nM to about 0.01 nM; between about 80 nM
to about 0.01 nM; between about 20 nM to about 0.01 nM; between about 10 nM to
about 0.1 nM; or about 1 nM.
A compound of formulae (I), (Ia), (Ib) or (Ic) for use as a CB receptor
modulator of the invention includes a compound having a CB1 agonist IC50 for CB1
agonist binding activity of between about 5 j*M to about 0.01 nM; between about 1
\iM to about 0.01 nM; between about 800 nM to about 0.01 nM; between about 200 nM to about 0.01 nM; between about 100 nM to about 0.01 nM; between about 80 nM
to about 0.01 nM; between about 20 nM to about 0.01 nM; between about 10 nM to
about 0.1 nM; or about 1 nM.
A compound of formulae (I), (Ia), (Ib) or (Ic) for use as a CB receptor
modulator of the invention includes a compound having a CB1 antagonist IC50 for CB1
antagonist binding activity of between about 5 |j.M to about 0.01 nM; between about 1
(LiM to about 0.01 nM; between about 800 nM to about 0.01 nM; between about 200

iZ:3S^^4filtM:i6l'nM;'sbeyeen about 100 nM to about 0.01 nM; between about 80 nM
to about 0.01 nM; between about 20 nM to about 0.01 nM; between about 10 nM to
about 0.1 nM; or about 1 nM.
A compound of formulae (I), (Ia), (Ib) or (Ic) for use as a CB receptor
modulator of the invention includes a compound having a CB1 inverse-agonist IC50 for
CB1 inverse-agonist binding activity of between about 5 |iM to about 0.01 nM; '
between about 1 uM to about 0.01 nM; between about 800 nM to about 0.01 nM;
between about 200 nM to about 0.01 nM; between about 100 nM to about 0.01 nM;
between about 80 nM to about 0.01 nM; between about 20 nM to about 0.01 nM;
between about 10 nM to about 0.1 nM; or about 1 nM.
A compound of formulae (I), (Ia), (Ib) or (Ic) for use as a CB receptor
modulator of the invention includes a compound having a CB2 agonist IC50 for CB2
agonist binding activity of between about 5 uM to about 0.01 nM; between about 1
|iM to about 0.01 nM; between about 800 nM to about 0.01 nM; between about 200 nM to about 0.01 nM; between about 100 nM to about 0.01 nM; between about 80 nM
to about 0.01 nM; between about 20 nM to about 0.01 nM; between about 10 nMto
about 0.1 nM; or about 1 nM.
A compound of formulae (I), (Ia), (Ib) or (Ic) for use as a CB receptor
modulator of the invention includes a compound having a CB2 antagonist IC50 for CB2
antagonist binding activity of between about 5 uM to about 0.01 nM; between about 1
U.M to about 0.01 nM; between about 800 nM to about 0.01 nM; between about 200 nM to about 0.01 nM; between about 100 nM to about 0.01 nM; between about 80 nM,
to about 0.01 nM; between about 20 nM to about 0.01 nM; between about 10 nM to
about 0.1 nM; or about 1 nM.
A compound of formulae (I), (Ia), (Ib) or (Ic) for use as a CB receptor
modulator of the invention includes a compound having a CB2 inverse-agonist IC50 for
CB2 inverse-agonist binding activity of between about 5 (J.M to about 0.01 nM;
between about 1 uM to about 0.01 nM; between about 800 nM to about 0.01 nM;
between about 200 nM to about 0.01 nM; between.about 100 nM to about 0.01 nM;
between about 80 nM to about 0.01 nM; between about 20 nM to about 0.01 nM;
between about 10 nM to about 0.1 nM; or about 1 nM.
The term "cannabinoid receptor" refers to any one of the known or heretofore

class of cannabinoid receptors that may be bound by a
cannabinoid modulator compound of the present invention; in particular, a cannabinoid
receptor selected from the group consisting of a CB1 receptor and a CB2 receptor. The
term "modulator" further refers to the use of a compound of the invention as a CB
receptor agonist, antagonist or inverse-agonist.
The present invention includes a method for treating, ameliorating or preventing
a CB receptor mediated syndrome, disorder or disease in a subject in need thereof
comprising the step of administering to the subject an effective amount of a compound
of the present invention or composition thereof, wherein the cannabinoid receptor is a
CB 1 or CB2 receptor; and, the compound is an agonist, antagonist or inverse-agonist of
the receptor.
The present invention includes a method for treating, ameliorating or preventing
a CB receptor mediated syndrome, disorder or disease in a subject in need thereof
comprising the step of administering to the subject an effective amount of a compound
of the present invention in a combination product and/or therapy with a therapeutic
agent such as an anticonvulsant or contraceptive agent or composition thereof, wherein
the cannabinoid receptor is a CB1 or CB2 receptor; and, the compound is an agonist,
antagonist or inverse-agonist of the receptor.
It should be understood that contraceptive agents suitable for use in a
combination product and/or therapy are not limited to oral contraceptives, but also
include other commonly available contraceptives such as those that are administered
transdermally, by injection or via implant.
Except as further specified, "combination product and/or therapy" means a
pharmaceutical composition comprising a compound of formulae (I), (Ia), (Ib) or (Ic) in
combination with one or more therapeutic agents. The dosages of the compound of
formula (I) and the one or more therapeutic agents are adjusted when combined to
achieve an effective amount.
The term "subject" as used herein, refers to a patient, which may.be an animal,
preferably a mammal, most preferably a human, which has been the object of treatment,
observation or experiment and is at risk of (or susceptible to) developing a CB receptor
mediated syndrome, disorder or disease.
The term "administering" is to be interpreted in accordance with the methods of
the present invention. Such methods include therapeutically or prophylactically

"intellective' amount of a composition or medicament of the present
invention at different times during the course of a therapy or concurrently as a product
in a combination form.
Prophylactic administration can occur prior to the manifestation of symptoms
characteristic of a CB receptor mediated syndrome, disorder or disease such that the
syndrome, disorder or disease is treated, ameliorated, prevented or otherwise delayed in
its progression. The methods of the present invention are further to be understood as
embracing all therapeutic or prophylactic treatment regimens used by those skilled in
the art.
The term "effective amount" refers to that amount of active compound or
pharmaceutical agent that elicits the biological or medicinal response in a tissue system,
animal or human, that is being sought by a researcher, veterinarian, medical doctor, or
other clinician, which includes alleviation of the symptoms of the syndrome, disorder
or disease being treated. The effective amount of a compound of the invention is from
about 0.001 mg/kg/day to about 300 mg/kg/day.
Wherein the present invention is directed to the administration of a combination
of a compound of formula (I) and an anticonvulsant or contraceptive agent, the term
"effective amount" means that amount of the combination of agents taken together so
that the combined effect elicits the desired biological or medicinal response.
As those skilled in the art will appreciate, the effective amounts of the
components comprising the combination product may be independently optimized and
combined to achieve a synergistic result whereby the pathology is reduced more than it
would be if the components of the combination product were used alone.
For example, the effective amount of a combination product and/or therapy
comprising administration of a compound of formula (I) and topiramate would be the
amount of the compound of formula (I) and the amount of topiramate that when taken
together or sequentially have a combined effect that is effective. Further, it will be
recognized by one skilled in the art that in the case of combination product and/or
therapy with an effective amount, as in the example above, the amount of the
compound of formula (I) and/or the amount of the anticonvulsant (e.g., topiramate)
individually may or may not be effective.
Wherein the present invention is directed to the administration of a combination
product and/or therapy, the instant compound and the anticonvulsant or contraceptive

Caferft WapS cB^inMlre'a Sy any suitable means, simultaneously, sequentially or in
a single pharmaceutical composition. Where the instant compound(s) and the
anticonvulsant or contraceptive agent components are administered separately, the
number of dosages of each compound(s) given per day, may not necessarily be the
same, e.g. where one compound may have a greater duration of activity, and will
therefore, be administered less frequently.
The compound(s) of formula (I) and the anticonvulsant(s) or contraceptive
agent(s) may be administered via the same or different routes of administration. The
compound(s) of formula (I) and the anticonvulsant(s) or contraceptive agent(s) may be
administered via the. same or different routes of administration.
Suitable examples of methods of administration are orally, intravenous (iv),
intramuscular (im), and subcutaneous (sc). Compounds may also be administrated
directly to the nervous system including, but not limited to the intracerebral,
intraventricular, intracerebroventricular, intrathecal, intracisternal, intraspinal and/or
peri-spinal routes of administration by delivery via intracranial or intravertebral needles
and/or catheters with or without pump devices.
The compound(s) of formula (I) and the anticonvulsant(s) or contraceptive
agent(s) may be administered according to simultaneous or alternating regimens, at the
same or different times during the course of the therapy, concurrently in divided or
single forms.
Optimal dosages to be administered may be readily determined by those skilled
in the art, and will vary with the particular compound used, the mode of administration,
the strength of the preparation and the advancement of the disease condition. In
addition, factors associated with the particular patient being treated, including patient's
sex, age, weight, diet, time of administration and concomitant diseases, will result in
the need to adjust dosages.
The term "CB receptor mediated syndrome, disorder, or disease" refers to
syndromes, disorders or diseases associated with a biological response mediated by a
CB receptor such that there is discomfort or decreased life expectancy to the organism.
CB receptor mediated syndromes, disorders or diseases can occur in both
animals and humans and include appetite, metabolism, diabetes, obesity, glaucoma-
associated intraocular pressure, social, mood, seizure, substance abuse, learning,
cognition, memory, organ contraction, muscle spasm, respiratory, locomotor activity,

it ,| f" ,-1] |i e n q; / in cji El .1 »3
lu'mbverne'nt, immune, inflammation, cell growth, pain or neurodegenerative related
syndromes, disorders or diseases.
Appetite related syndromes, disorders or diseases include obesity, overweight
condition, anorexia, bulimia, cachexia, dysregulated appetite and the like.
Obesity related syndromes, disorders or diseases include obesity as a result of
genetics, diet, food intake volume, metabolic syndrome, disorder or disease,
hypothalmic disorder or disease, age, reduced activity, abnormal adipose mass
distribution, abnormal adipose compartment distribution and the like.
Metabolism related syndromes, disorders or diseases include metabolic
syndrome, dyslipidemia, elevated blood pressure, diabetes, insulin sensitivity or
resistance, hyperinsulinemia, hypercholesterolemia, hyperlipidemias,
hypertriglyceridemias, atherosclerosis, hepatomegaly, steatosis, abnormal alanine
aminotransferase levels, inflammation, atherosclerosis and the like.
Diabetes related syndromes, disorders or diseases include glucose
dysregulation, insulin resistance, glucose intolerance, hyperinsulinemia, dyslipidemia,
hypertension, obesity and the like.
Type II diabetes mellitus (non-insulin-dependent diabetes mellitus) is a
metabolic disorder (i.e., a metabolism related syndrome, disorder or disease) in which
glucose dysregulation and insulin resistance results in chronic, long-term medical
complications for both adolescents and adults affecting the eyes, kidneys, nerves and
blood vessels and can lead to blindness, end-stage renal disease, myocardial infarction
or limb amputation and the like. Glucose dysregulation includes the inability to make
sufficient insulin (abnormal insulin secretion) and the inability to effectively use insulin
(resistance to insulin action in target organs and tissues). Individuals, suffering from
Type II diabetes mellitus have a relative insulin deficiency. That is, in such
individuals, plasma insulin levels are normal to high in absolute terms, although they
are lower than predicted for the level of plasma glucose that is present.
Type II diabetes mellitus is characterized by the following clinical signs or
symptoms: persistently elevated plasma glucose concentration or hyperglycemia;
polyuria; polydipsia and / or polyphagia; chronic microvascular complications such as
retinopathy, nephropathy and neuropathy; and macrovascular complications such as
hyperlipidemia and hypertension. These micro-and macro-vascular complications can
lead to blindness, end-stage renal disease, limb amputation and myocardial infarction.

> C II / tiiJiiMfesillricel^'drome (IRS) (also referred to as Syndrome X, Metabolic
Syndrome or Metabolic Syndrome X) is a disorder that presents risk factors for the
development of Type II diabetes and cardiovascular disease including glucose
intolerance, hyperinsulinemia, insulin resistance, dyslipidemia (e.g. high triglycerides,
low HDL-cholesterol and the like), hypertension and obesity.
Social or mood related syndromes, disorders or diseases include depression,
anxiety, psychosis, social affective disorders or cognitive disorders and the like.
Substance abuse related syndromes, disorders or diseases include drug abuse,
drug withdrawal, alcohol abuse, alcohol withdrawal, nicotine withdrawal, cocaine
abuse, cocaine withdrawal, heroin abuse, heroin withdrawal and the like.
Learning, cognition or memory related syndromes, disorders or diseases include
memory loss or impairment as a result of age, disease, side effects of medications
(adverse events) and the like.
Muscle spasm syndromes, disorders or diseases include multiple sclerosis,
cerebral palsy and the like..
Locomotor activity and movement syndromes, disorders or diseases include
stroke, Parkinson's disease, multiple sclerosis, epilepsy and the like.
Respiratory related syndromes, disorders or diseases include chronic pulmonary
obstructive disorder, emphysema, asthma, bronchitis and the like.
Immune or inflammation related syndromes, disorders or diseases include _
allergy, rheumatoid arthritis, dermatitis, autoimmune disease, immunodeficiency,
chronic neuropathic pain and the like.
Cell growth related syndromes, disorders or diseases include dysregulated
mammalian cell proliferation, breast cancer cell proliferation, prostrate cancer cell
proliferation and the like.
Pain related syndromes, disorders or diseases include central and peripheral
pathway mediated pain, bone and joint pain, migraine headache associated pain, cancer
pain, menstrual cramps, labor pain and the like.
Neurodegenerative related syndromes, disorders or diseases include Parkinson's
Disease, multiple sclerosis, epilepsy, ischemia or secondary biochemical injury
collateral to traumatic head or brain injury, brain inflammation, eye injury or stroke and
the like.
The present invention includes a method for treating, ameliorating or preventing

a cannabinoid receptor agonist mediated syndrome, disorder or disease in a subject in
need thereof comprising the step of administering to the subject an effective amount of
a cannabinoid agonist compound of the present invention or composition thereof.
The present invention includes a method for treating, ameliorating or preventing
a cannabinoid receptor agonist mediated syndrome, disorder or disease in a subject in
need thereof comprising the step of administering to the subject an effective amount of
a cannabinoid agonist compound of the present invention in a combination product
and/or therapy with an anticonvulsant or composition thereof.
The present invention includes a method for treating, ameliorating or preventing
a cannabinoid receptor inverse-agonist mediated syndrome, disorder or disease in a
subject in need thereof comprising the step of administering to the subject an effective
amount of a cannabinoid inverse-agonist compound of the present invention or
composition thereof.
The present invention includes a method for treating, ameliorating or preventing
a cannabinoid receptor inverse-agonist mediated syndrome, disorder or disease in a
subject in need thereof comprising the step of administering to the subject an effective
amount of a cannabinoid inverse-agonist compound of the present invention in a
combination product and/or therapy with an anticonvulsant or composition thereof.
The present invention includes a method for treating, ameliorating or preventing
a cannabinoid receptor inverse-agonist mediated syndrome, disorder or disease in a
subject in need thereof comprising the step of administering to the subject an effective
amount of a cannabinoid inverse-agonist compound of the present invention in a
combination product and/or therapy with one or more contraceptives or composition
thereof.
The present invention includes a method for treating, ameliorating or preventing
a cannabinoid receptor antagonist mediated syndrome, disorder or disease in a subject
in need thereof comprising the step of administering to the subject an effective amount
of a cannabinoid antagonist compound of the present invention or composition thereof.
The present invention includes a method for treating, ameliorating or preventing
a cannabinoid receptor antagonist mediated syndrome, disorder or disease in a subject
in need thereof comprising the step of administering to the subject an effective amount
of a cannabinoid antagonist compound of the present invention in a combination
product and/or therapy with an anticonvulsant or composition thereof.

The present invention includes a method for treating, ameliorating or preventing
a cannabinoid receptor antagonist mediated syndrome, disorder or disease in a subject
in need thereof comprising the step of administering to the subject a therapeutically or
prophylactically effective amount of a cannabinoid antagonist compound of the present
invention in a combination product and/or therapy with one or more contraceptives or
composition thereof.
The present invention includes a method for treating, ameliorating or preventing
a CB1 receptor agonist mediated syndrome, disorder or disease in a subject in need
thereof comprising the step of administering to the subject an effective amount of a
CB1 agonist compound of the present invention or composition thereof.
The present invention includes a method for treating, ameliorating or preventing
a CB1 receptor agonist mediated syndrome, disorder or disease in a subject in need
thereof comprising the step of administering to the subject an effective amount of a
CB1 agonist compound of the present invention in a combination product and/or
therapy with an anticonvulsant or composition thereof.
The present invention includes a method for treating, ameliorating or preventing •
a CB1 receptor inverse-agonist mediated syndrome, disorder or disease in a subject in
need thereof comprising the step of administering to the subject an effective amount of
a CB1 inverse-agonist compound of the present invention or composition thereof.
The present invention includes a method for treating, ameliorating or preventing
a CB1 receptor inverse-agonist mediated syndrome, disorder or disease in a subject in
need thereof comprising the step of administering to the subject an effective amount of
a CB1 inverse-agonist compound of the present invention in a combination product
and/or therapy with an anticonvulsant or composition thereof.
The present invention includes a method for treating, ameliorating or preventing
a CB1 receptor inverse-agonist mediated syndrome, disorder or disease in a subject in
need thereof comprising the step of administering to the subject an effective amount of
a CB1 inverse-agonist compound of the present invention in a combination product
and/or therapy with one or more contraceptives or composition thereof.
The present invention includes a method for treating, ameliorating or preventing
a CB 1 receptor inverse-agonist mediated appetite related obesity related or metabolism
related syndrome, disorder or disease in a subject in need thereof comprising the step of
administering to the subject an effective amount of a CB1 inverse-agonist compound of

the present invention or composition thereof.
The present invention includes a method for treating, ameliorating or preventing
a CB1 receptor inverse-agonist mediated appetite related obesity related or metabolism
related syndrome, disorder or disease in a subject in need thereof comprising the step of
administering to the subject an effective amount of a CB1 inverse-agonist compound of
the present invention in a combination product and/or therapy with an anticonvulsant or
composition thereof.
The present invention includes a method for treating, ameliorating or preventing
a CB1 receptor inverse-agonist mediated appetite related obesity related or metabolism
related syndrome, disorder or disease in a subject in need thereof comprising the step of
administering to the subject an effective amount of a CB1 inverse-agonist compound of
the present invention in a combination product and/or therapy with one or more
contraceptives or composition thereof.
Appetite related syndromes, disorders or diseases include obesity, overweight
condition, anorexia, bulimia, cachexia, dysregulated appetite and the like.
Obesity related syndromes, disorders or diseases include obesity as a result of
genetics, diet, food intake volume, metabolic syndrome, disorder or disease,
hypothalmic disorder or disease, age, reduced activity, abnormal adipose mass
distribution, abnormal adipose compartment distribution and the like.
Metabolism related syndromes, disorders or diseases include metabolic
syndrome, dyslipidemia, elevated blood pressure, diabetes, insulin sensitivity or
resistance, hyperinsulinemia, hypercholesterolemia, hyperlipidemias,
hypertriglyceridemias, atherosclerosis, hepatomegaly, steatosis, abnormal alanine
aminotransferase levels, inflammation, atherosclerosis and the like.
The present invention includes a method for treating, ameliorating or preventing
a CB 1 receptor antagonist mediated syndrome, disorder or disease in a subject in need
thereof comprising the step of administering to the subject an effective amount of a
CB1 antagonist compound of the present invention or composition thereof.
The present invention includes a method for treating, ameliorating or preventing
a CB 1 receptor antagonist mediated syndrome, disorder or disease in a subject in need
thereof comprising the step of administering to the subject an effective amount of a
CB1 antagonist compound of the present invention in a combination product and/or
therapy with an anticonvulsant or composition thereof.

The present invention includes a method for treating, ameliorating or preventing
a CB1 receptor antagonist mediated syndrome, disorder or disease in a subject in need
thereof comprising the step of administering to the subject an effective amount of a
CB1 antagonist compound of the present invention in a combination product and/or
therapy with one or more contraceptives or composition thereof.
The present invention includes a method for treating, ameliorating or preventing
a CB2 receptor agonist mediated syndrome, disorder or disease in a subject in need
thereof comprising the step of administering to the subject an effective amount of a
CB2 agonist compound of the present invention or composition thereof.
The present invention includes a method for treating, ameliorating or preventing
a CB2 receptor agonist mediated syndrome, disorder or disease in a subject in need
thereof comprising the step of administering to the subject an effective amount of a
CB2 agonist compound of the present invention in a combination product and/or
therapy with an anticonvulsant or composition thereof.
The present invention includes include a method for treating, ameliorating or
preventing a CB2 receptor inverse-agonist mediated syndrome, disorder or disease in a
subject in need thereof comprising the step of administering to the subject an effective
amount of a CB2 inverse-agonist compound of the present invention or composition
thereof.
The present invention includes a method for treating, ameliorating or preventing
a CB2 receptor inverse-agonist mediated syndrome, disorder or disease in a subject in
need thereof comprising the step of administering to the subject an effective amount of
a CB2 inverse-agonist compound of the present invention in a combination product
and/or therapy with an anticonvulsant or composition thereof.
The present invention includes a method for treating, ameliorating or preventing
a CB2 receptor antagonist mediated syndrome, disorder or disease in a subject in need
thereof comprising the step of administering to the subject an effective amount of a
CB2 antagonist compound of the present invention or composition thereof.
The present invention includes a method for treating, ameliorating or preventing
a CB2 receptor antagonist mediated syndrome, disorder or disease in a subject in need
thereof comprising the step of administering to the subject an effective amount of a
CB2 antagonist compound of the present invention in a combination product and/or
therapy with an anticonvulsant or composition thereof.

The present invention includes a method for treating, ameliorating or preventing
a metabolism related syndrome, disorder or disease, an appetite related syndrome,
disorder or disease, a diabetes related syndrome, disorder or disease, an obesity related
syndrome, disorder or disease or a learning, cognition or memory related syndrome,
disorder or disease in a subject in need thereof comprising the step of administering to
the subject an effective amount of a compound of the present invention or composition
thereof.
The present invention includes a method for treating, ameliorating or preventing
a metabolism related syndrome, disorder or disease, an appetite related syndrome,
disorder or disease, a diabetes related syndrome, disorder or disease, an obesity related
syndrome, disorder or disease or a learning, cognition or memory related syndrome,
disorder or disease in a subject in need thereof comprising the step of administering to
the subject an effective amount of a compound of the present invention in a
combination product and/or therapy with an anticonvulsant or composition thereof.
The present invention includes a pharmaceutical composition or medicament
comprising an admixture of a compound of the present invention and an optional
pharmaceutically acceptable carrier.
The present invention includes a pharmaceutical composition or medicament
comprising an admixture of two or more compounds of the present invention and an
optional pharmaceutically acceptable carrier.
The present invention also includes a pharmaceutical composition or
medicament comprising an admixture of a compound of formula (I), an anticonvulsant
and an optional pharmaceutically acceptable carrier.
Such pharmaceutical compositions are particularly useful for treating a subject
suffering from a metabolism related syndrome, disorder or disease, an appetite related
syndrome, disorder or disease, a diabetes related syndrome, disorder or disease, an
obesity related syndrome, disorder or disease, or a learning, cognition or memory
related syndrome, disorder or disease,
Anticonvulsants useful in the methods and compositions of the present
invention in combination with a compound of formula (I), (Ia), (Ib) or (Ic) include, but
are not limited to, topiramate, analogs of topiramate, carbamazepine, valproic acid,
lamotrigine, gabapentin, phenytoin and the like and mixtures or pharmaceutically
acceptable salts thereof.

Topiramate, 2,3:4,5-bis-O-(l-methylethylidene)-B-D-fructopyranose sulfamate,
is currently marketed for the treatment of seizures in patients with simple and complex
partial epilepsy and seizures in patients with primary or secondary generalized seizures
in the United States, Europe and most other markets throughout the world. Topiramate
is currently available for oral administration in round tablets containing 25 mg, 100 mg
or 200 mg of active agent, and as 15 mg and 25 mg sprinkle capsules for oral
administration as whole capsules or opened and sprinkled onto soft food. U.S. Patent
No. 4,513,006, incorporated herein by reference, discloses topiramate and analogs of
topiramate, their manufacture and use for treating epilepsy. Additionally, topiramate
may also be made by the process disclosed in US Patent Nos. 5,242,942 and 5,384,327,
which are incorporated by reference herein. The term "analogs of topiramate". as used
herein, refers to the sulfamate compounds of formula (I), which are disclosed in U.S.
Patent No. 4,513,006 (see, e.g., column 1, lines 36-65 of U.S. 4,513,006).
For use in the methods of the present invention in combination with a
compound of the formula (I), (Ia), (Ib) or (Ic), topiramate (or an analog of topiramate)
can be administered in the range of about 10 to about 1000 mg daily, preferably in the
range of about 10 to about 650 mg daily, more preferably in the range of about 15 to
about 325 mg once or twice daily.
Carbamazepine, 5#-dibenz[ 6t/']azepine-5-carboxamide, is an anticonvulsant
and specific analgesic for trigeminal neuralgia, available for oral administration as
chewable tablets of 100 mg, tablets of 200 mg, XR (extended release) tablets of 10O,
20O, and 400 mg, and as a suspension of 100 mg/5 mL (teaspoon); U.S. Patent No.
2,948,718, herein incorporated by reference in its entirety, discloses carbamazepine and
its methods of use.
For use in the methods of the present invention in combination with a
compound of the formula (I), (Ia), (Ib) or (Ic), carbamazepine can be administered in
the range of about 200 to about 1200 mg/day; preferably, about 400 mg/day.
Valproic acid, 2-propylpentanoic acid or dipropylacetic acid, is an antiepileptic
agent commercially available as soft elastic capsules containing 250 mg valproic acid,
and as syrup containing the equivalent of 250 mg valproic acid per 5 mL as the sodium
salt. Valproic acid and various pharmaceutically acceptable salts are disclosed in U.S.
Patent No. 4,699,927, which is incorporated by reference herein in its entirety.
For use in the methods of the present invention in combination with a

compound of the formula (I), (Ia), (Ib) or (Ic), valproic acid can be administered in the
range of about 250 to about 2500 mg/day; preferably, about 1000 mg/day.
Lamotrigine, 3,5-diamino-6-(2,3-dichlorophenyl)-1,2,4-triazine, is an
antiepileptic drug commercially available for oral administration as tablets containing
25 mg, 100 mg, 150 mg, and 200 mg of lamotrigine, and as chewable dispersible
tablets containing 2 mg, 5 mg, or 25 mg of lamotrigine. Lamotrigine and its uses are'
disclosed in U.S. Patent No. 4,486,354, incorporated by reference herein in its entirety.
For use in the methods of the present invention in combination with a
compound of the formula (I), (Ia), (Ib) or (Ic), lamotrigine can be administered in the
range of about 50 to about 600 mg/day in one to two doses; preferably, about 200 to
about 400 mg/day; most preferably, about 200 mg/day.
Gabapentin, 1 -(aminomethyl)cyclohexaneacetic acid, is commercially available
for the adjunctive treatment of epilepsy and for postherpetic neuralgia in adults as
capsules containing 100 mg, 300 mg, and 400 mg of gabapentin, film-coated tablets
containing 600 mg and 800 mg of gabapentin, and an oral solution containing 250 mg/5
mL of gabapentin. Gabapentin and its methods of use are described in U.S. Patent No.
4,024,175 and 4,087,544, herein incorporated by reference in their entirety.
For use in the methods of the present invention in combination with a
compound of the formula (I), (Ia), (Ib) or (Ic), gabapentin can be administered in the
range of about 300 to about 3600 mg/day in two to three divided doses; preferably,
about 300 to about 1800 mg/day; most preferably, about 900 mg/day.
Phenytoin sodium, 5,5-diphenylhydantoin sodium salt, is an anticonvulsant,
which is commercially available for oral administration as capsules containing 100 mg,
200 mg or 300 mg of phenytoin sodium.
For use in the methods of the present invention in combination with a
compound of the formula (I), (Ia), (Ib) or (Ic), phenytoin sodium can be administered in
the range of about 100 to about 500 mg/day; preferably, about 300 to about 400 mg/day; most preferably, about 300 mg/day.
The present invention also includes a pharmaceutical composition or
medicament comprising an admixture of a compound of formula (I), (Ia), (Ib) or (Ic),
one or more contraceptives and an optional pharmaceutically acceptable carrier.
Contraceptives suitable for use in a combination product and/or therapy include,
for example, ORTHO CYCLEN®, ORTHO TRI-CYCLEN®, ORTHO TRI-CYCLEN

"LO* and'ORTHO EVRA,"alfavailable from Ortho-McNeil Pharmaceutical, Inc.,
Raritan, NJ. It should also be understood that contraceptives suitable for use in the
invention encompass those contraceptives that include a folic acid component.
Smoking and/or obesity have been identified as risk factors in women taking
oral contraceptives. CB1 receptor antagonists and inverse agonists have been found to
be useful therapeutic agents for reducing the urge to smoke and for assisting patients
with eating disorders to lose weight.
Accordingly, the invention further includes a method of reducing the risk
factors associated with smoking and/or obesity for women taking contraceptives by cot-
administering with a contraceptive at least one of a CB1 receptor antagonist and/or
CB1 receptor inverse-agonist compound of formula (I), (Ia), (Ib) or (Ic).
The use of such compounds or a pharmaceutical composition or medicament
thereof is to reduce the desire to smoke and/or to assist in weight loss for patients
taking contraceptives.
The term "composition" refers to a product comprising the specified ingredients
in the specified amounts, as well as any product that results, directly or indirectly, from
combinations of the specified ingredients in the specified amounts. The invention
further comprises mixing one or more of the compounds of the invention and a
pharmaceutically acceptable carrier; and, includes those compositions resulting from
such a process. Contemplated processes include both traditional and modern
pharmaceutical techniques.
Pharmaceutical compositions of the invention may, alternatively or in addition
to a compound of formula (I), (Ia), (Ib) or (Ic), comprise a pharmaceutically acceptable
salt of a compound of formula (I), (Ia), (Ib) or (Ic) or a prodrug or pharmaceutically
active metabolite of such a compound or salt in admixture with a pharmaceutically
acceptable carrier.
The term "medicament" refers to a product for use in treating, ameliorating or
preventing a cannabinoid receptor mediated syndrome, disorder or disease.
"Pharmaceutically acceptable carrier" means molecular entities and
compositions that are of sufficient purity and quality for use in the formulation of a
composition of the invention and that, when appropriately administered to an animal or
a human, do not produce an adverse, allergic, or other untoward reaction.
Since both clinical and veterinary uses are equally included within me scope of

the present invention, a pharmaceutically acceptable formulation would include a
composition or medicament formulation for either clinical or veterinary use.
The present invention includes a process for making the composition or
medicament comprising mixing any of the instant compounds and a pharmaceutically
acceptable carrier and include those compositions or medicaments resulting from such
a process. Contemplated processes include both conventional and unconventional
pharmaceutical techniques. Other examples include a composition or medicament
comprising a mixture of at least two of the instant compounds in association with a
pharmaceutically acceptable carrier.
The composition or medicament may be administered in a wide variety of
dosage unit forms depending on the method of administration; wherein such methods
include (without limitation) oral, sublingual, nasal (inhaled or insufflated), transdermal,
rectal, vaginal, topical (with or without occlusion), intravenous (bolus or infusion) or
for injection (intraperitoneally, subcutaneously, intramuscularly, intratumorally or
parenterally) using a suitable dosage form well known to those of ordinary skill in the
area of pharmaceutical administration. Accordingly, the term "dosage unit" or "dosage
form" is alternatively used to refer to (without limitation) a tablet, pill, capsule,
solution, syrup, elixir, emulsion, suspension, suppository, powder, granule or sterile
solution, emulsion or suspension (for injection from an ampoule or using a device such
as an auto-injector or for use as an aerosol, spray or drop). Furthermore, the
composition may be provided in a form suitable for weekly or monthly administration
(e.g. as an insoluble salt of the active compound (such as the decanoate salt) adapted to
provide a depot preparation for intramuscular injection).
In preparing a dosage form, the principal active ingredient (such as a compound
of the present invention or a pharmaceutically acceptable salt, racemate, enantiomer, or
diastereomer thereof) is optionally mixed with one or more pharmaceutical carriers
(such as a starch, sugar, diluent, granulating agent, lubricant, glidant, binder,
disintegrating agent and the like), one or more inert pharmaceutical excipients (such as
water, glycols, oils, alcohols, flavoring agents, preservatives, coloring agents, syrup and
the like), one or more conventional tableting ingredient (such as corn starch, lactose,
sucrose, sorbitol, talc, stearic acid, magnesium stearate, dicalcium phosphate, any of a
variety of gums and the like) and a diluent (such as water and the like) to form a
homogeneous composition (whereby the active ingredient is dispersed or suspended

evenly throughout the mixture) which may be readily subdivided into dosage units
containing equal amounts of a compound of the present invention.
Binders include, without limitation, starch, gelatin, natural sugars (such as glucose,
beta-lactose and the like), corn sweeteners and natural and synthetic gums (such as acacia,
tragacanth, sodium oleate, sodium stearate, magnesium stearate, sodium benzoate, sodium
acetate, sodium chloride and the like). Disintegrating agents include, without limitation,
starch, methyl cellulose, agar, bentonite, xanthan gum and the like.
Because of the ease of administration, tablets and capsules represent an
advantageous oral dosage unit form, wherein solid pharmaceutical carriers are
employed. If desired, tablets may be sugar or film coated or enteric-coated by standard
techniques. Tablets may also be coated or otherwise compounded to provide a
prolonged therapeutic effect. For example, the dosage form may comprise an inner
dosage and an outer dosage component, whereby the outer component is in the form of
an envelope over the inner component The two components may further be separated
by a layer, which resists disintegration in the stomach (such as an enteric layer) and
permits the inner component to pass intact into the duodenum or a layer which delays
or sustains release. A variety of enteric and nonenteric layer or coating materials may
be used (such as polymeric acids, shellacs, acetyl alcohol, cellulose acetate and the like)
or combinations thereof.
The liquid forms in which a compound of the present invention may be
incorporated for oral administration include (without limitation), aqueous solutions,
suitably flavored syrups, aqueous or oil suspensions (using a suitable synthetic or
natural gum dispersing or suspending agent such as tragacanth, acacia, alginate,
dextran, sodium carboxymethylcellulose, methylcellulose, polyvinyl-pyrrolidone,
gelatin and the like), flavored emulsions (using a suitable edible oil such as cottonseed
oil, sesame oil, coconut oil, peanut oil and the like), elixirs and other similar liquid
forms with a variety of pharmaceutically acceptable vehicles.
As is also known in the art, the compounds may alternatively be administered
parenterally via injection. For parenteral administration, sterile solutions or injectable
suspensions may be parenteral vehicles wherein appropriate liquid carriers, suspending
agents and the like are employed. Sterile solutions are a preferred parenteral vehicle.
Isotonic preparations that generally contain suitable preservatives are employed when
intravenous administration is desired. A parenteral formulation may consist of the active

ingredient dissolyed m or mixed with an appropriate inert liquid carrier. Acceptable
liquid carriers comprise aqueous solyents and the like and other optional ingredients for
aiding solubility or preservation. Such aqueous solyents include sterile water, Ringer's
solution or an isotonic aqueous saline solution. Alternatively, a sterile non-volatile oil
may be employed as a solyent agent. Other optional ingredients include vegetable oils
(such as peanut oil, cottonseed oil, sesame oil and the like), organic solyents (such as
solketal, glycerol, formyl and the like), preservatives, isotonizers, solubilizers,
stabilizers, pain-soothing agents and the like. A parenteral formulation is prepared by
. dissolying or suspending the active ingredient in the liquid carrier whereby the final
dosage unit contains from 0.005 to 10% by weight of the active ingredient.
Compounds of the present invention may be administered intranasally using a
suitable intranasal vehicle. Compounds of the present invention may be administered
topically using a suitable topical transdermal vehicle or a transdermal patch.
Administration via a transdermal delivery system requires a continuous rather than
intermittent dosage regimen.
Compounds of the present invention may also be administered via a rapid
dissolying or a slow release composition, wherein the composition includes a
biodegradable rapid dissolying or slow release carrier (such as a polymer carrier and
the like) and a compound of the invention. Rapid dissolying or slow release carriers are
well known in the art and are used to form complexes that capture therein an active
compound(s) and either rapidly or slowly degrade/dissolye in a suitable environment
(e.g., aqueous, acidic, basic, etc). Such particles are useful because they
degrade/dissolye in body fluids and release the active compound(s) therein. The
particle size of a compound of the present invention, carrier or any excipient used in
such a composition may be optimally adjusted using techniques known to those of
ordinary skill in the art.
The present invention includes a composition of an instant compound or
prodrug thereof present in a prophylactically or therapeutically effective amount
necessary for symptomatic relief to a subject in need thereof. A prophylactically or
therapeutically effective amount of an instant compound or prodrug thereof may range
from about 0.01 ng to about 1 g and may be constituted into any form suitable for the
administration method and regimen selected for the subject.
Depending on the subject and disease to be treated, the prophylactically or

therapeutically effective amount for a person of average body weight of about 70 kg per
day may range from about 0.01 µg/kg to about 300 mg/kg; from about 0.1 µg/kg to
about 200 mg/kg; from about 0.5 µg/kg to about 100 mg/kg; or, from about 1 µg/kg to
about 50 mg/kg.
An optimal prophylactically or therapeutically effective amount and
administration method and regimen may be readily determined by those skilled in the
art, and will vary depending on factors associated with the particular patient being
treated (age, weight, diet and time of administration), the severity of the condition
being treated, the compound and dosage unit being employed, the mode of
administration and the strength of the preparation.
Dosage unit(s) may be administered to achieve the therapeutically or
prophylactically effective amount in a regimen of from about once per day to about 5
times per day. The preferred dosage unit for oral administration is a tablet containing
0.01,0.05, 0.1, 0.5, 1.O,2.5, 5.O, 10.O, 15.O,25.O, 50.O, 10O, 15O,20O,250 or 500 mg of
the active ingredient.
SYNTHETIC METHODS
Representative compounds of the present invention can be synthesized in
accordance with the general synthetic schemes described below and are illustrated more
particularly in the specific synthetic examples that follow. The general schemes and
specific examples are offered by way of illustration; the invention should not be construed
as being limited by the chemical reactions and conditions expressed. The methods for
preparing the various starting materials used in the schemes and examples are well within
the skill of persons versed in the art. No attempt has been made to optimize the yields
obtained in any of the example reactions. One skilled in the art would know how to
increase such yields through routine variations in reaction times, temperatures, solyents
and/or reagents.
The terms used in describing the invention are commonly used and known to
those skilled in the art. When used herein, the following abbreviations have the
indicated meanings:
Boc tert-butoxy carbonyl
Cpd compound
DMF N,N-dimethyl formamide

EtOAc ethyl acetate
Et2O anhydrous ether
KOH potassium hydroxide
LHMDS lithium hexamethyl disilane
LiOH lithium hydroxide
min/hr(s)/d(s)/mp minute/hour(s)/day(s)/melting point
N2 nitrogen
RT/rt/r.t. room temperature
TEA or Et3N triethylamine
TFA trifluoroacetic acid
THF tetrahydrofuran
Except where indicated, all reagents, solyents and starting materials are
commercially available and were used without further purification. Where a particular
component or piece of equipment was used, such are also commercially available.
Scheme A
Synthesis of Tetrahydro-Indazole Compounds

An optionally substituted cyclohexanone Compound Al in solution (with one or
more of Et2O, THF and the like) is rapidly added to a reagent solution (containing a
mixture of LHMDS and the like in one or more of Et2O or THF and the like) at a
temperature of about -78 °C under an inert atmosphere (using nitrogen and the like)
and stirred at about -78 °C for about 40 mins. An optionally substituted oxalic acid dit-
ethyl ester Compound A2 in solution (with Et2O and the like) is then added to the
Compound Al mixture.
The reaction mixture is stirred at about -78 °C for about 1 hr, then allowed to
warm to r.t. over an additional 2 hr period of time. The reaction is quenched (using
saturated NH4C1, lN HC1 and the like) and the organic layer is extracted (with one or
more of EtOAc, Et2O and the like) and washed (with brine and the like), then separated
and dried (with anhydrous sodium sulfate and the like). The extract is filtered and
concentrated in vacuo to yield an optionally substituted oxo-(2-oxo-cyclohexyl)-acetic
acid alkyl ester Compound A3 as a crude product used without further purification in
the next step.


A substituted hydrazine hydrochloride Compound A4 and K2CO3 (potassium
carbonate) are added to Compound A3 in solution (with one or more of MeOH, EtOH,
CH2Cl2 and the like) at room temperature under an inert atmosphere. The reaction
mixture is stirred overnight, then concentrated and diluted (with one or more of water,
EtOAc (ethyl acetate) and the like). The organic layer is washed, separated and dried,
then filtered and concentrated in vacuo to yield a crude product Compound A5 as a
mixture of isomers, wherein a mixture of X1R1 and X2R2 isomers are present. The
XaRa substituent moiety on Compound A4 represents the possibility that, after
separation, the substituted amine group may be found either on the N1 position as X1R1
or on the N2 position as X2R2.
The hydrazine hydrochloride or dihydrochloride Compound A4 may be
converted to the free base by methods known to those skilled in the art. In the
examples of the present invention, the free base is prepared either in situ (as shown for
illustrative purposes in this Scheme) or separately (then added to the reaction mixture)
by reaction with K2CO3.
As illustrated in this Scheme, Compound A4 may also be further substituted
with a variety of XaRa substituents (as previously defined herein). In many instances,
the substituted hydrazine Compound A4 is commercially available. When not
commercially available, a particularly substituted Compound A4 may be prepared by
methods known to those skilled in the art. More specifically, a halogenated XaRa
substituent moiety is reacted with a hydrazine hydrate solution at reflux and used
without further purification as Compound A4 (as described more completely in
Example 3).


The Compound A5 isomeric mixture is separated via flash chromatography
(eluted with a suitable solyent mixture such as 20% or 30% EtOAc:hexane and the like)
to provide a purified major isomer Compound A6 and a minor isomer Compound A7.
The major isomer Compound A6 is substituted on the N1 position with X[R| (X2R2 is
necessarily absent). The minor isomer Compound A7 is substituted on the N2 position
with X2R2 (wherein XiR[ is absent).

The separated major isomer Compound A6 is treated with a reagent solution
(such as a mixture of NaOH in a solyent such as THF or water and the like) and stirred
overnight. The reaction is quenched and extracted with a solyent (such as CH2Cl2,
EtOAc and the like). The organic layer is dried, filtered and concentrated in vacuo to
yield Compound A8.

A reagent (such as SOCl2 (thionyl chloride) and the like) in a solyent (such as
CH2Cl2 and the like) is added to Compound A8 at ambient temperature under an inert
nitrogen atmosphere. The reaction mixture is stirred at reflux temperature for about 15
min, then concentrated in vacuo to afford the corresponding acid chloride intermediate
Compound A9.

Compound A9 (optionally in solution with TEA (triethylamine) and the like) is
added to a solution of a substituted amine Compound A10 (in a solyent such as CH2Cl2
and the like) at ambient temperature under an inert nitrogen atmosphere.
In general, Compound A10 is a commercially available substituted amine.

When not commercially available, a particularly substituted amine Compound A10 .
may be prepared by methods known to those skilled in the art.
The Compound A9/A10 mixture is stirred at about r.t. for a period of time, then
diluted (with a mixture of water and CH2Cl2 and the like). The organic layer is
separated and dried, then filtered and concentrated in vacuo to yield a crude product.
The product is purified via flash chromatography (eluted with a solyent mixture such as
20% or 30% EtOAc in hexane) to provide a target Compound All.
For purposes of illustration in this Scheme, the Compound All X3R3
substituent moiety incorporates the C(O) portion of the C3 substituent from Compound
A9 and the -NH- portion from Compound A1O, wherein X3 is absent and R3 is either
-(R6)C(O)Z1R7 or -(R6)C(O)N(R9a)Z2R9, and wherein R6 is absent.

A catalytic amount of tetrabutylammonium bromide ((«-Bu)4NBr) is added to a
solution of Compound A9 (in a solyent such as DCE (dichloroethane) and the like) at
0°C. A saturated solution of NaN3 (sodium azide) (in water) is added dropwise at 0°C.
The reaction mixture is stirred for about 0.5 hrs, then diluted (with one or more of cold
water, CH2Cl2 and the like). The organic layer is washed (with one or more of water,
brine and the like) and dried (using sodium sulfate), then filtered and concentrated to
give an azide Compound Bl.

f-BuOH (tert-butmol) is added to a solution of Compound Bl (in a solyent such
as CH2Cl2 and the like) and the mixture is refluxed for about 48 hrs. The reaction
product is concentrated and purified via silica gel column (eluted with a solyent
mixture such as 10% EtOAc in hexane) to give a Boc-protected amine Compound B2.


TFA is added to a solution of Compound B2 (in a solyent such as CH2Cl2 and
the like) and the mixture is stirred overnight. The reaction product is concentrated and
the residue is dissolyed (in a solyent such as CH7Cl2 and the like) and washed (with one
or more of IN NaOH, water and the like) and dried (using sodium sulfate), then filtered
and concentrated to give an amine Compound B3.

Compound B3 (optionally in solution with TEA and the like) is added to a
solution of a substituted amine Compound B4 (in a solyent such as CH2Q2 and the
like) at ambient temperature under an inert nitrogen atmosphere. The mixture is stirred
at r.t. for about 4 hrs, then concentrated and purified via silica gel column (eluted with a ■
solyent mixture such as 15%, 20% or 30% EtOAc in hexane) to provide the target
Compound All.
For purposes of illustration in this Scheme, the Compound All X3R3
substituent moiety incorporates the NH portion of the C3 substituent from Compound
B3 and the RYC(O)- portion from Compound B4, wherein X3 is a -NH- and R3 is either
-(R6)C(O)Z,R7, -SO2N(R8)R8a, or -(R6)C(O)N(R9a)Z2R9, and wherein R6 is absent.
The synthetic examples that follow herein describe more completely the
preparation of particular compounds included within the scope of the present invention.

Example 1
(56)-3-(adamantan-2-ylcarbamoyl)-1 -cyclohexyl-4,5,6,7-
tetrahydro-lH-indazole-5-carboxylic acid ethyl ester (Cpd 208)
(57?)-3-(adamantan-2-ylcarbamoyl)-1-cyclohexyl-4,5,6,7-
tetrahydro-lH-indazole-5-carboxylic acid ethyl ester (Cpd 209)

4-oxo-cyclohexanecarboxylic acid ethyl ester Compound la (3.4 g, 0.02 mol)
was added to LHMDS (20 mL, 1M in THF, 0.02 mol) in THF (15 mL) at about -78 °C
under N2 and stirred at -78 °C for 40 min. Then oxalic acid di-tert-butyl ester
Compound lb (4.04 g, 0.02 mol) in THF (15 mL) was transferred into the mixture via
cannula. The mixture was stirred for 1 hr at -78 °C and 2 hrs at r.t. The reaction was
quenched with saturated NH4CI and the product was concentrated in vacuo, then
extracted using EtOAc (30 mL). The EtOAc was evaporated to provide a crude 3-tert-
butoxyoxalyl-4-oxo-cyclohexanecarboxylic acid ethyl ester Compound lc (5.0 g)
which was used in the next step without further purification.

The crude Compound lc (2.98 g) was stirred with cyclohexyl hydrazine
hydrochloride Compound Id (1.51 g, 0.01 mol) and K2C03 (0.69 g, 0.005 mol) in
CH2C12 (30 mL) under N2 at r.t. overnight and then washed with water. The crude
product was chromatographically purified (eluted with 30% EtOAc in hexane) to afford
a mixture of a major isomer Compound le (2.5 g, 66.5% yield from Compound la) and
a minor isomer Compound If (0.3 g, 8.0% yield from Compound la).
Compound le: MS m/z 377 (M+H)+; "H NMR (CDC13, 300 MHz) 8: 4.18 (2H,
q, J = 7.1 Hz), 3.95 (1H, m), 3.14 (1H3 m), 2.82 (2H, m), 2.63 (2H, m), 2.21 (1H, m),
1.89 (6H, m), 1.66 (1H5 m), 1.58 (9H, s), 1.29 (4H, m), 1.28 (3H, t, J = 7.1 Hz).

Compound if: MSm/z 377 (M+H)+; 'H NMR (CDC13, 300 MHz) 8: 5.02 (1H,
m), 4.16 (2H, q, J = 7.2 Hz), 3.09 (1H, m), 2.82 (2H, m), 2.62 (2H, m), 2.21 (1H, m),
1.91 (6H, m), 1.69 (1H, m), 1.58 (9H, s), 1.25-1.45 (4H, m), 1.26 (3H, t, J = 7.2 Hz).

The separated major isomer Compound le (4.2 g, 11.16 mMol) was treated with
a 50% TFA/CH2C12 solution (20 mL) over about an 8 hr period (overnight). The
solyent was evaporated and the residue was washed with CH2Cl2 to give l-cyclohexyl-
4,5,6,7-tetrahydro-lH-indazole-3,5-dicarboxylic acid 5-ethyl ester Compound lg (3.6
g, 100% yield) as a solid.
Compound lg: MS m/z 321 (M+H)+, 343 (M+Na)+; 'H NMR (CDC13, 300 MHz) 8: 4.23 (2H, q, J = 7.1 Hz), 4.13 (1H, m), 3.19 (1H, m), 2.85 (4H, m), 2.3 (1H,
m), 1.92 (6H, m), 1.72 (1H, m), 1.32 (7H, m).

Compound lg (3.6 g, 11.2 mMol) was reacted with thionyl chloride (14 mL,
190 mMol) and refluxed for about 15 min to form an acid chloride intermediate. The
intermediate was further reacted with a 2-adamantanamine hydrochloride Compound
lh (2.09 gms, 11.16 mMol) in CH2C12. The crude product afforded was
chromatographically purified (eluted with 30% EtOAc in hexane) to provide a 3-
(adamantan-2-ylcarbamoyl)-1-cyclohexyl-4,5,6,7-tetrahydro-lH-indazole-5-carboxylic
acid ethyl ester Compound li (3.2 g, 63% yield) as a white solid racemate.


The racemic Compound li was enantiomerically separated via chiral column
chromatography (eluted with 90% hexane in IPA) to provide an (S)-enantiomer
Compound 208 and an (7?)-enantiomer Compound 209.
MS m/z 454 (M+H)4", 476 (M+Na)+; IR (KBr): 3419, 2908, 1732, 1668 cm-1; *H
NMR (CDC13, 300 MHz) 8: 7.25 (1H, d, J = 8.3 Hz), 4.22 (1H, m), 4.14 (2H, q, J = 7.1
Hz), 3.91 (1H, m), 3.32 (1H, dd, J = 16.4, 5.3 Hz), 2.83 (2H, m), 2.63 (2H, m), 2.20 (1H, m), 1.88 (23H, m), 1.32 (2H, m), 1.25 (3H, t, J = 7.1 Hz); 13C NMR (CDC13, 75
MHz) S: 175.5, 162.8, 141.5, 138.3, 116.6, 60.8, 58.7, 52.9, 40.4, 38.O, 37.6, 33.O, 32.9,
32.54, 32.51, 32.47,27.7, 27.6, 25.9, 25.5, 25.3, 24.9, 21.1, 14.6; Anal. Calcd for
C27H39N303: C, 71.49; H, 8.67; N, 9.26. Found: C, 71.32; H, 8.77; N, 9.07.
Example 2
1 -benzyl-4,5,6,7-tetrahydro-1 H-indazole-3-carboxylic acid
(l,3,3-trimethyl-bicycIo[2.2.1]hept-2-yl)-amide (Cpd 194)

Cyclohexanone Compound 2a (20.54 g, 0.25 mol) in Et20 (100 mL ) was added
to a solution of LHMDS (250 mL, 0.25 mol) in Et20 (400 mL) at-78 °C under a N2
atmosphere. The mixture was maintained at -78 °C and stirred for 60 min. A
diethyloxylate Compound 2b (36.53 g, 0.25 mMol) in Et20 (100 mL) was added to the
mixture, which was stirred at -78 °C for 1 hr. The reaction mixture was allowed to
warm to r.t. over 3 hrs and the reaction was quenched with IN HC1 (150 mL), The
organic layer was extracted with Et20 (200 mL), washed with brine and separated, then
dried with anhydrous sodium sulfate, filtered and concentrated in vacuo to yield 48.50 g, 95% of oxo-(2-oxo-cyclohexyl)-acetic acid ethyl ester Compound 2c as a yellow oil.
Compound 2c was used in the next step without further purification.


Benzylhydrazine dihydrochloride Compound 2d (1.75 g, 9.0 mMol) and K2CO3
(2.77 g, 19.5 mMol) were added to a solution of Compound 2c (1.88 g, 8.85 mMol) in
MeOH (50 mL) at ambient temperature under a No atmosphere. The resultant
heterogeneous mixture was stirred overnight. The reaction mixture was concentrated to
dryness and diluted with H2O (100 mL) and EtOAc (500 mL). The organic layer was
washed with brine, separated, dried with anhydrous sodium sulfate, filtered and
concentrated in vacuo to yield a product as a crude oil. Purification by flash
chromatography (eluted with 20% EtOAc in hexane) afforded a major isomer 1-benzyl-
4,5,6,7-tetrahydro-lH-indazoIe-3-carboxylic acid ethyl ester Compound 2e (1.51 g,
60%) and a minor isomer 2-benzyl-4,5,6,7-tetrahydro-2H-indazole-3-carboxylic acid
ethyl ester Compound 2f as a colorless oil.

IN NaOH (10 mL) was added to Compound 2e (0.30 g, 1.05 mMol) in THF (10 mL). The mixture was stirred for 30 hours, acidified to pH 2 with IN HC1 and
extracted with EtOAc (100 mL). The organic layer was washed with brine, dried over
sodium sulfate, then filtered and concentrated in vacuo to yield l-benzyl-4,5,6,7-
tetrahydro-lH-indazole-3-carboxylic acid Compound 2g (0.190 g, 70%) as a white
solid. Thionyl chloride (0.17 g, 0.39 mMol) was added to a solution of the carboxylic
acid Compound 2g (0.15 g, 0.55 mMol) in CH2Cl2 (10 mL) at ambient temperature
under a N? atmosphere. The reaction was stirred for 3 hrs and concentrated in vacuo to
afford the corresponding acid chloride Compound 2h in quantitative yield.


NEt3 (triethylamine) (0.10 g, 0.98 mMol) and acid chloride Compound 2h (0.17
g, 0.39 mMol) were added to a solution of l,3,3-trimethyl-bicyclo[2.2,l]hept-2-ylamine
hydrochloride Compound 2i (0.071 g,, 0.39 mMol) (prepared from commercially
available L(-)-fenchone as described in Suchocki JA; May EL; Martin TJ; Clifford G;
Martin, BR, J. Med Chem., 1991, 34, 1003) in CH2C12 (10 mL) at ambient temperature
under a N? atmosphere.
The reaction was stirred at rlt. for 3 hrs, then diluted with water (10 mL) and
CH2Cl2 (50 mL). The organic layer was separated, dried with anhydrous sodium
sulfate, filtered and concentrated in vacuo to yield a crude oil. Purification by flash
chromatography (eluted with 20% EtOAc in hexane) afforded Compound 194 (0.09 g,
41%), as a white solid.
'H NMR (CDCI3, 400 MHz) 8 7.37-7.27 (m, 3H), 7.14-7.09 (m, 2H), 7.03-6.99
(d, J=12 Hz, 2H), 5.23 (s, 2H), 3.76-3.72(m, 1H), 2.85-2.80 (m, 1H), 2.44-2.40 (m,
1H), 1.80-1.70 (m, 7H), 1.55-1.42 (m, 2H), 1.24-1.28(m, 1H), 1.17 (s, 3H), 1.12 (s,
3H), 0.86 (s, 3H). MS m/z 392 (M+).
Example 3
1-(l-phenyI-ethyl)-4,5,6,7-tetrahydro-lH-indazole-3-carboxyIic
acid [(15)-1-cyclohexyl-ethyl]-amide (Cpd 249)

1-bromoethylbenzene Compound 3a (8.0 mL, 58.0 mMol) was added to a
solution of hydrazine hydrate Compound 3b (20 mL) in THF (80 mL) which was then
heated to reflux for 8 hrs. The solyent was removed in vacuo and Et20 (100 mL) was
added. The organic layer was washed with brine, separated and dried over NasSCv
The solyent was removed in vacuo to yield (l-phenyl-ethyl)-hydrazine Compound 3c
as a pale yellow oil (5.8 g), used in the next step without purification. MS m/z 137

(M+H, 70y0j;"!05 (M-NHNHi 100%).

Oxo-(2-oxo-cyclohexyl)-acetic acid ethyl ester Compound 2c (3.97 g, 20.0 mMol) was added to a solution containing crude Compound 3c (5.8 g, 29.0 mMol) and
K2C03 (0.2 g) in MeOH (40 mL). The suspension was stirred at r.t. for 48 hrs. The
solyent was removed in vacuo and the residue was extracted with CH2Cl2. The organic
layer was washed with water and brine, then separated and dried over Na?SO4 to
provide Compound 3d as a red oil (4.6 g), used in die next step without further
purification. MS m/z 321 (M+Na, 100%).

Compound 3d was dissolyed in a solution of KOH (5.6 g, 100 mMol) in THF
(40 mL) and water (60 mL). The resulting solution was stirred at r.t. for 12 hrs,
followed by removal of the THF in vacuo. The aqueous, solution was extracted with
Et20 to remove impurities. The aqueous layer was then acidified with 6 N HOI and
was extracted with Et20 (2 x 50 mL). The organic layer was separated and dried over
Na2SO4. The solyent was removed in vacuo to yield 1-(l-phenyl-ethyl)-4,5,6,7-
tetrahydro-lH-indazole-3-carboxylic acid Compound 3e as pale yellow solid. MS m/z
(+ve mode) 293 (M+Na, 100%), MS m/z (-ve mode) 269 (M-H, 100%).

Compound 3e (2.0 g, 7.4 mMol) was dissolyed in CH2C12 (15 mL) and treated

wlftfSBGWrff g). "'THS re'smtfflg solution was heated to reflux for 3 hrs followed by
removal of the solyent in vacuo to provide 1-(l-phenyl-ethyl)-4,5,6,7-tetrahydro-lH-
indazole-3-carbonyl chloride Compound 3f as a brownish yellow oil.

A solution of Compound 3f (0.06 g, 0.2 mMol) in CH2C12 (1 mL) was added to
a solution of commercially available (>S)-1-cyclohexyI-ethylamine Compound 3g (0.03
mL, 0.18 mMol) in CH2C12 (2 mL) and triethylamine (0.1 mL, 0.8 mMol) at 0 °C. The
resulting suspension was stirred for 2 hrs, then the reaction was quenched with water (5
mL) and the mixture was extracted with Et20. The organic layer was washed with 10%
NaOH and brine, then separated and dried over Na2SO4- The solyent was removed in
vacuo and the crude product was purified by preparative TLC (1:1 hexane/EtOAc) to
provide Compound 249 as a mixture of diastereomers in a brown oil. MS m/z 380 (M+H, 100%).
'H NMR (300 MHZ, CDC13) 5 7.12-7.29 (m, 3H), 6.95-7.06 (m, 2H), 6.70 (br
d, J = 6.0 Hz, 1H), 5.27 (q, J = 3.0 Hz, 1H), 3-84-4.01 (m, 1H), 2.72 (br t, 2 H), 2.30-
2.45 (brm, 1H), 2.12-2.26 (brm, 1H), 1.82 (d, J = 6.0 Hz, 3H), 1.48-1.86 (br m, 8H),
1.27-1.42 (m, 1H), 1.12 (d, J = 6.0 Hz, 3H), 0.90-1.25 (brm, 6H).

Example 4
l-cyclohexyl-4,5,6,7-tetrahydro-lH-indazoIe-3-carboxylic
acid [2-hydroxy-2-(4-methoxy-phenyl)-ethyl]-amide (Cpd
241)

Compound 176 was prepared according to the procedure of Example 2;
replacing Compound 2d with cyclohexyl-hydrazine Compound 5a and using 2-amino-
1-(4-methoxy-phenyl)-ethanone as Compound 2i). NaBELt (sodium borohydride) (0.05
g, 1.25 mMol) was added in one portion to a solution of Compound 176 (0.08 g, 0.2
mMol) in MeOH (2 mL) and THF (8 mL) at r.t. The mixture was stirred at r.t. for 4 hrs
and the solyent was removed in vacuo. The residue was extracted with CH2C12 and the
organic layer was washed successively with water, saturated aqueous NaHCC>3 and
brine. The organic layer was separated, then dried with anhydrous sodium sulfate and
filtered. The solyent was evaporated to provide a crude product which was then
purified by preparative TLC on silica gel (3:2 hexane/EtOAc, Rf = 0.35) to provide
Compound 241 (29.8 mg, 75%) as a sticky solid.
MS m/z 420 (M+Na, 30%), 380 (M-H2O, 100%); 'H NMR (300 MHZ, CDC13)
8 7.25 (br s, 1H), 7.21 (d, J = 6.0 Hz, 2H), 6.78 (d, J = 6.0 Hz, 2H), 4.75-4.83 (m, 1H),
3-82-3.98 (m, 1H), 3.71 (s, 3H), 3.55-3.68 (m, 1H), 3.33-3.47 (m, 1H), 2.70 (br t, 2 H),
2.48 (br t, 2 H), 1.58-1.90 (m, 10H), 1.18-1.39 (m, 4H).

Example 5
1 -cyclohexyl-4,5,6,7-tetrahydro-1 H-indazole-3-carboxylic acid
cyclohexylmethylamide (Cpd 304)

For this example, Compound 2c was prepared as follows: LHMDS (100 raL of
1.0 M solution in THF) was added to a 500 mL round bottom flask and cooled to "78
°C. Cyclohexanone Compound 2a (10.36 mL, 100 mMol) in 20 mL THF was added
dropwise and the mixture was stirred at "78 °C for 1 hr. Diethyl oxalate Compound 2b
(13.6 mL, 100 mMol) was added slowly at ~78 °C and the mixture was stirred at the
same temperature for I hr. The reaction mixture was stirred and allowed to warm to r.t.
overnight. The mixture was then concentrated and taken up in EtOAc (500 mL) and
washed with IN HC1 (2 x 200 mL) followed by water (2 x 200 mL). The organic layer
was separated, then dried with anhydrous sodium sulfate and filtered. The organic
layer was separated, then dried with anhydrous sodium sulfate and filtered. The solyent
was evaporated to provide an ester Compound 2c (15 g, 75.7%) as an orange oil.
Compound 2c (1.98 g, 10 mMol) was taken up in EtOH (40 mL) and anhydrous
cyclohexyl hydrazine hydrochloride Compound Id (1.5 g, 10 mMol) and K2CO3 (1.38
g, 10 mMol) were added. The mixture was stirred at r.t. overnight, then filtered and
washed with EtOH (20 mL). The combined filtrate was concentrated and purified on a
silica gel column (eluted with 20% EtOAc in hexane) to give of a mixture of a major
isomer Compound 5b and a minor isomer Compound 5c (2.3 g, 83%).

The major isomer Compound 5b (0.8lg, 2.92 mMol) was dissolyed in a

solution of MeOH (24 mL) and THF (8 mL) and aqueous LiOH (0.52 g LiOH in 8 mL
H2O) was added. The mixture was stirred at r.t. for 4 hrs, then concentrated and diluted
with water (100 mL). The resulting aqueous solution was washed with EtOAc in
hexane (1:1 in 50 mL). The aqueous layer was acidified to pH 4 using IN HC1 and
extracted with EtOAc (100 mL). The organic layer was separated, then dried over
magnesium sulfate and filtered. The solyent was evaporated to provide an acid
Compound 5d (0.7 g, 96%).
Compound 5d (0.4 g, 1.6 mMol) was dissolyed in 10 mL CH2Cl2 (methylene
chloride) and was treated with SOC1? (thionyl chloride) (0.3 mL). The resulting
solution was heated to reflux for 3 hrs and the solyent was removed in vacuo to provide
0.36 g (84%) of the acid chloride Compound 5e.

The acid chloride Compound 5e (0.08 g, 0.3 mMol) was added to a solution of
cyclohexylmethylamine Compound 5f (0.08 mL , 0.6 mMol) in 2 mL of CH2C12 and
triethylamine (0.125 mL, 0.9 mMol). The resulting suspension was stirred at r.t. for 2
hrs and then diluted with 10 mL CH2Cl2. The resulting mixture was washed with IN
HCI (2 X10 mL) and water (2 xlO mL). The organic layer was dried over sodium
sulfate, then concentrated and purified on a silica gel column (eluted with 20% EtOAc
in hexane) to provide an amide Compound 304 (90 mg, 88%). MS nt/z 344 (MH+).
Example 6
naphthalene-2-carboxyIic acid (l-cyclohexyl-4,5,6,7-tetrahydro-
lH-indazol-3-yl)-amide (Cpd 178)

Tetrabutylamrnonium bromide ((«-Bu)4NBr) (10 mg) in a catalytic amount was

added to a solution of l-cyclohexyl-4,5,6,7-tetrahydro-lH-indazole-3-carbonyl chloride
Compound 5e (0.134 g, 0.5 mMol) in DCE (dichloroethane) (5 mL) at 0°C. NaN3
(sodium azide) (0.5 mL saturated solution in water) was then added dropwise at 0°C.
The resulting reaction mixture was stirred for 0.5 hrs before being diluted with cold
water and CH2Cl2. The organic layer was washed with water (2x10 mL), brine (2 x
10 mL), dried over sodium sulfate, filtered and concentrated to give an azide
Compound 6a (0.11 g, 80%).

To a solution of azide Compound 6a (0.2 g, 0.73 mMol) in 5 mL CH2Cl2 was
added /-BuOH (/ert-butanol) (1 g, 13.5 mMol). The resulting mixture was refluxed for
48 hrs before being concentrated. The crude product was purified on a silica gel
column (eluted with 10% EtOAc in hexane) to give a Boc-protected amine Compound
6b (0.15 g, 64%).

To a solution of Compound 6b (0.15 g, 0.47 mMol) in 8 mL CH2C12 was added
2 mL TFA. The reaction mixture was stirred overnight and then concentrated. The
crude product was dissolyed in CH2C12 and washed with IN NaOH (2 x 20 mL) and
water (2 x 20 mL). The organic layer was dried over sodium sulfate, filtered and
concentrated to give Compound 6c (0.127 g, 93%).


Naphthalene-2-carbonyl chloride Compound 6d (5 mg, 0.026 mMol) and TEA
(0.01 mL, 0.072 rnMol) were added to a solution of Compound 6c (5 mg, 0.023 mMol).
The reaction mixture was stirred at r.t. for 4 hrs, then concentrated and purified on a
silica gel column (eluted with 15% EtOAc in hexane) to give Compound 178 (5.1 mg,
60%). MS m/z 31A (MH+)
Example 7
3-(adamantan-2-ylcarbamoyl)-1-cyclohexyl-4,5,6,7-tetrahydro-
l/f-indazole-5-carboxylic acid (Cpd 223)
1 -cyclohexyl-4,5,6,7-tetrahydro- l//-indazole-3,5-dicarboxylic
acid 3-adamantan-2-yiamide 5-[(l,l,3,3~tetramethyl-butyl)-
amide] (Cpd 228)

The3-(adamantan-2-ylcarbamoyl)-1-cyclohexyl-4,5J6,7-tetrahydro-lH-
indazole-5-carboxylic acid ethyl ester Compound li (100 mg, 0.22 mMol) was added to
a solution of LiOH (lithium hydroxide) monohydrate (46 mg) in a 3:1:1 ratio of
THF:MeOH:water (10 mL). The mixture was stirred overnight at r.t. and then
concentrated in vacuo. The residue was neutralized with IN HC1 to give Compound
223 (87 mg, 93%) as a white precipitate. MS m/z 426 (M+H)\ 448 (M+Na)+; 'H NMR
(CDC13, 300 MHz) 5: 7.26 (1H, b), 4.21 (1H, m), 3.91 (1H, m), 3.31 (1H, m), 2.93 (1H,
m), 2.75 (3H, m), 2.21 (1H, m), 1.88 (23H, m), 1.35 (2H, m).


Thionyl chloride (1 mL) was added to Compound 223 (10 mg, 0.023 mMol)
and the mixture was refluxed for 10 min. The excess thionyl chloride was evaporated
and the residue was washed with CILCk. 1,1,3,3-tetramethyl-butylamine Compound
7a (6 mg, 0.046 mMol) was added to the residue in CH2C12 and the mixture was stirred
for 70 min, washed with IN HC1 and brine, then dried over sodium sulfate. The crude
product was purified by preparative TLC (50% EtOAc in hexane) to give Compound
228 (8 mg, 63.5%) as a white solid.
MS m/z 537 (M+H)+, 559 (M+Na)+; 'H NMR (CDC13) 300 MHz) S: 7.26 (1H,
b), 5.42 (1H, b), 4.19 (1H, m), 3.90 (1H, m), 3.21 (1H, m), 2.79 (2H, m), 2.56 (2H, m),
2.21 (1H, m), 1.7-2.1 (23H, m), 1.42 (4H, m), 1.19 (3H, s), 1.02 (9H, s), 0.97 (3H, s).
Example 8
[ 1 -cyclohexyl-3 -(1,3,3 -trimethyl-bicyclo[2.2.1 ]hept-2-
ylcarbamoyl)-4,5,6,7-tetrahydro-lH-indazol-5-yI]-carbamic acid
tert-butyl ester (Cpd 86)
5-amino-1-cyclohexyl-4,5,6,7-tetrahydro-lf/-indazole-3-
carboxylic acid (l,3,3-trimethyl-bicyclo[2.2.1]hept-2-yl)-amide
(Cpd 92)
l-cyclohexyl-5-hydroxy-4,5,6,7-tetrahydro-lH-indazole-3-
carboxylic acid (l,3,3-trimethyl-bicyclo[2.2.1]hept-2-yl)-amide
(Cpd 93)

According to the procedure of Example 2, a solution of (4-oxo-cyclohexyl)-
carbamic acid tert-butyl ester Compound 8a in ether was used in place of
cyclohexanone Compound 2a and carried forward to produce (5-tert-

butoxycarbonylarnino-2-oxo-cyclohexyl)-oxo-acetic acid ethyl ester Compound 8b.

Using the procedure of Example 2, Compound 8b was used in place of oxo-(2-
oxo-cyclohexyl)-acetic acid ethyl ester Compound 2c and cyclohexyl-hydrazine
Compound Id was used in place of benzylhydrazine dihydrochloride Compound 2d to
produce a major isomer 5-tert-butoxycarbonylamino-1-cyclohexyl-4,5,6,7-tetrahydro-
lH-indazole-3-carboxylic acid ethyl ester Compound 8c and a minor isomer 5-tert-
butoxycarbonylamino-2-cyclohexyl-4,5J6,7-tetrahydro-2H-indazole-3-carboxylic acid
ethyl ester Compound 8d.

Using the procedure of Example 2, Compound 8c was used in place of 1-
benzyI-4,5,6,7-tetrahydro-lH-indazole-3-carboxylic acid ethyl ester Compound 2e to
produce 5-tert-butoxycarbonylamino-1 -cyclohexyl-4,5,6,7-tetrahydro-1 H-indazole-3-
carboxylic acid Compound 8e.

Using the procedure of Example 24, Compound 8e was used in place of 1-

cyclohexyl-7-hydroxy-4,5,6,7-tetrahydro-lH-indazole-3-carboxylic acid Compound
24a and l,3,3-trimethyl-bicyclo[2.2.1]hept-2-ylamine hydrochloride Compound 2i was
used in place of (25',3i?)-3-amino-bicycio[2.2.1 jheptane-2-carboxylic acid ethyl ester
Compound 24b to produce Compound 86.

Ester Compound 86 (0.1 g, 0.2 mMol) was added to a solution of 50% TFA in
CH2Cl2 (2 mL). The mixture was stirred for 3 hrs and the solyent was evaporated to
give Compound 92 (0.1 g, yield 98%) as a TFA salt.
MS m/z 399 (M+H)+, 421 (M+Na)+. 'H NMR (CDC13,300 MHz) 8: 7.05 (1H,
b), 6.03 (3H, b), 3-86 (1H, m), 3.64 (1H, m), 3.42 (1H, m), 2.89 (2H, m), 2.69 (1H, m),
2.36 (1H, m), 1.65-1.95 (11H, m), 1.18-1.41 (8H, m), 1.05 (3H, s), 1.02 (3H, s), 0.82
(3H, s).

Compound 92 (0.1 g, 0.2 mMol) was added to a solution of NaN02 (27 mg, 0.4
mMol) in acetic acid (3 mL) at 0 °C. The mixture was stirred for 2 hrs and the product
was run on prep TLC (30% EtOAc in hexane) to give Compound 93 (22 mg, yield
28%).
MS ni/z 400 (M+H)+, 422 (M+Na)+. !H NMR (CDCI3, 300 MHz) 5: 7.02 (1H,
b), 4.19 (1H3 m), 3.90 (1H, m), 3.72 (1H, m), 3.19 (1H, m), 2.81 (3H, m), 2.61 (1H, m),
1.89 (7H, m), 1.70 (4H, m), 1.34 (4H, m), 1.21 (3H, m), 1.13(3H, s), 1.09 (3H, s), 0.82

Example 9
l-cyclohexyl-5-(3,3-dimethyl-ureido)-4,5,6,7-tetrahydro-liir-
indazole-3-carboxylic acid adamantan-2-ylamide (Cpd 89)

Dimethylcarbamyl chloride Compound 9b (0.56 mL, 6 mMol) was added
dropwise to a solution of Compound 9a (0.8 g, 2 mMol) (prepared similarly to
Compound 92 using the procedure of Example 8) and TEA (0.3 g, 3 mMol) in CH2C12
(10 mL). The mixture was stirred for 2 hrs and the reaction was quenched with IN
NaOH. The organic layer was dried over Na2SO4 and the CH2Cl2 was evaporated. The
crude product was purified via column chromatography (using EtOAc as the eluent) to
give Compound 89 (0.8* g, yield 86%) as a white solid.
MS m/z 468 (M+H)+, 490 (M+Na)+. *H NMR (CDC13) 300 MHz) 8: 7.26 (1H,
b), 4.32 (1H, d, J = 6.6 Hz), 4.19 (1H, m), 4.07 (1H, m), 3.92 (1H, m), 3.21 (1H, dd, J =
16.O, 5.2 Hz), 2.88 (6H, s), 2.65 (2H, m), 2.15 (1H, m), 2.02 (2H, m), 1.90 (16H, m),
1.75 (6H, m), 1.32 (2H, m).
Example 10
1-(2,4-dichloro-phenyl)-7-(4-fluoro-benzylidene)-4,5,6,7-
tetrahydro-lH-indazole-3-carboxylic acid piperidin-1-ylamide
(Cpd 297)

An aqueous KOH (0.25 g in 4.4 mL water) solution was added to β-fluorobenzaldehyde Compound 10a (1.04 mL, 10 mMol) and the mixture was heated
to 65 °C. Cyclohexanone Compound 2a (1.03 mL, 10 mMol) was added dropwise over
10 tnin and the reaction mixture was refluxed for 5 hrs. then cooled to r.t. and stirred at

""r.t: overnignt. me reaction mixture was acidified with 1NHC1 (26 mL) and diluted
with EtOAc. The organic layer was separated and washed with brine, then dried with
anhydrous sodium sulfate and filtered. The solyent was evaporated to provide a crude
product which was then purified by silica gel column (eluted with 6% EtOAc in
hexane) to give 2-(4-fluoro-benzylidene)-cyclohexanone Compound 10b (1.1 g, 54%).

Cyclohexanone Compound 10b (1.1 g, 5.4 mMol) in THF (5 mL) was added
dropwise to a solution of lithium bis(trirnethylsilyl)amide (5.4 mL of 1.0M solution in
THF) in THF (10 mL) at -78 °C. The mixture was stirred at -78 °C for 1 hr, then
diethyl oxalate Compound 2b (0.732 mL, 5.4 mMol) in THF (5 mL) was added slowly
at -78 °C. The mixture was stirred at -78 °C for 1 hr, then stirred and allowed to warm
to r.t. overnight. The mixture was concentrated, taken up in EtOAc (100 mL) and
washed with IN HC1 (2x50 mL) and water (2x50 mL). The organic layer was
separated, then dried with anhydrous sodium sulfate and filtered. The solyent was
evaporated to provide a [3-(4-fluoro-benzylidene)-2-oxo-cyclohexyl]-oxo-acetic acid
ethyl ester Compound 10c (1.4 g, 85%) as an orange oil which was used in the next
step without further purification.

Compound 10c (1.4 g, 4.62mmol) was taken up in ethanol (30 mL), then
anhydrous (2,4-dichloro-phenyl)-hydrazine hydrochloride Compound lOd (0.99 g, 4.62
mMol) and K2CO3 (1.28 g, 9.24 mMol) were added. The reaction mixture was stirred
at r.t. overnight, then filtered and washed with ethanol (20 mL). The combined filtrate
was concentrated and purified on a silica gel column (eluted with 20% EtOAc in

hdxanS) to give I -(2,4-DichI6ro-phenyl)-7-(4-fluoro-benzylidene)-4,5,6,7-tetrahydro-
lH-indazole-3-carboxylic acid ethyl ester Compound lOe (0.8 g, 39%).

Ethyl ester Compound lOe (0.8 g, 1.8 mMol) was dissolyed in THF (18 mL).
Aqueous LiOH (lithium hydroxide) (0.26 g in 6 mL), then ethanol (2 mL) were added
and the mixture was stirred at r.t. for 24 hrs, then concentrated, diluted with water (25
mL) and acidified to pH 4 using IN HC1. The aqueous suspension was extracted with
EtOAc (100 mL).
The organic layer was separated and washed with brine, then dried over
magnesium sulfate and filtered. The solyent was evaporated to provide an acid
Compound lOf (0.74 g, 98%).

The acid Compound lOf (0.74 g, 1.77 mMol) was taken up in' CH2C12 (5 mL),
then treated with thionyl chloride (1 mL, 14.1 mMol). The solution was heated to
reflux for 3 hrs, the solyent was removed in vacuo to obtain the acid chloride
Compound lOg (0.76 g, 99%).


Compound lOg (0.044 g, 0.1 mMol) was added to a solution of commercially
available 1-aminopiperidine Compound lOh (0.021 mL, 0.2 mMol) in CH2Cl2 (2 mL)
and triethylamine (0.055 mL, 0.4 mMol). The suspension was stirred, then diluted and
washed. The organic layer was dried, concentrated and purified on a silica gel column
(eluted with 40% EtOAc in hexane) to provide Compound 297 (40 mg, 80.2%). MS
m/z 499 (MH+); !H NMR (CDCI3,400 MHz) 5 7.57-7.41 (m, 4H), 7.07-6.92 (m, 4H),
5.89 (s, 1H), 3.09-3.00(m, 2H), 2.87-2.79 (m, 4H), 2.71-2.54 (m, 2H), 1.93-1.68 (m,
6H), 1.45-1.36 (m,2H).
Compound 297 (100 mg, 0.2 mMol) was dissolyed in CH2C12 (2 mL) and a
solution of IN HC1 in ether (1 mL) was added slowly. The mixture was stirred at r.t.
for 1 hr, then concentrated and washed with ether (3X). The remaining ether was
removed in vacuo to provide Compound 297 (95 mg, 89%) as a hydrochloride salt.
MS m/z 499 (MH+); 'H NMR (CDCI3, 400 MHz) 5 9.33(s, 1H), 7.57(s, 1H),
7.46(s, 2H), 7.06-6.93 (m, 4H), 5.93 (s, 1H), 4.20-3.61 (broad peak, 4H), 3.02-2.88 (m,
2H), 2.78-2.52 (m, 2H), 2.21-1.55 (m, 8H).
Example 11
2-(l-benzyl-4,5,6,7-tetrahydro-lH-indazol-3-yl)-ethenesulfonic
acid [(li?)-1-phenyl-ethyl]-amide (Cpd 260)

Cyclohexanone Compound 2a (1.37 g, 14.0 mMol) in THF (5 mL) was added
dropwise to a solution of LHMDS (16.0 mL, 16.0 mMol) in anhydrous THF (25 mL) at
-78 °C under a N2 atmosphere. The solution was stirred at -78 °C for about 1 hr.
Methyl dimethoxyacetate Compound 11a (1.88 g, 14.0 mMol) in anhydrous THF (5

•mL>'WkS'ffleiil' added'tlrdpWiS'g. "The reaction mixture was stirred while warming to r.t.
over a period of about 15 hrs, then the reaction was quenched with water (5 mL). The
organic layer was diluted with EtOAc (100 mL) and washed with water and brine. The
organic layer was separated and dried with anhydrous sodium sulfate, then filtered and
concentrated in vacuo to yield a crude product as an oil. The oil was purified by flash
chromatography (eluted with 10% EtOAc in hexane) to afford 2-(2,2-dimethoxy-
acetyI)-cyclohexanone Compound lib (1.82 g, 65%).

Benzylhydrazine dihydrochloride Compound lie (1.75 g, 9.00 mMol) and
K2CO3 (1.51 g, 10.92 mMol) were added to a solution of Compound lib (1.80 g, 9.10 mMol) in MeOH (50 mL) at 0 °C under a N2 atmosphere. The reaction mixture was
stirred overnight while warming to r.t., then the reaction was quenched with water (20 mL). The organic layer was diluted with EtOAc (200 mL) and washed with water and
brine. The organic layer was separated and dried with anhydrous sodium sulfate, then
filtered and concentrated in vacuo to yield a crude product as an oil. The oil was
purified by flash chromatography (eluted with 20% EtOAc in hexane) to afford 1-
benzyl-3-dimethoxymethyl-4,5,6,7-tetrahydro-lH-indazole Compound lid (1.80 g,
70%) as a colorless oil.

3N HC1 (8 mL) was added to a solution of Compound lid (1.70 g, 5.9 mMol)
in acetone (50 mL) at 0 °C under a N2 atmosphere. The reaction mixture was stirred for
4 hrs while warming to r.t., then the reaction was quenched with water (20 mL),
neutralized to pH 7 with K2C03 and diluted with CH2C12 (100 mL). The organic layer
was washed with water and brine, separated and dried with anhydrous sodium sulfate,

thferi'filtered'ari'd'coricelrfa'tea* in vacuo to afford a l-benzyl-4,5,6,7-tetrahydro-lH-
indazole-3-carbaldehyde Compound lie (1.35 g, 95%) as a colorless oil.

Methanesulfonyl chloride Compound llf1 (2.0 g, 17 mMol) and TEA (2.43 mL,
17.46 mMol) were added to a solution of (li?)-1-phenyl-ethylamine Compound llf2
(1.75 g, 17.5 mMol) in CH2C12 (50 mL) at 0°C under a N2 atmosphere. The mixture
was stirred for 3 hrs while warming to r.t., then the reaction was quenched wim water
(5 mL)! The organic layer was diluted with CH2Cl2 (100 mL) and then washed with
water and brine. The organic layer was separated, dried with anhydrous sodium sulfate,
then filtered and concentrated in vacuo to afford the corresponding N-(l-phenyl-ethyl)-
methanesulfonamide Compound llf3 as an oil.

(Boc)20 (di-tert-butyldicarbonate) (4.57 g, 21.0 mMol) and DMAP (8 mg) were
added to a solution of the methanesulfonamide Compound llf3 in CH2C12 (10 mL) at 0 °C under a N2 atmosphere. The mixture was stirred overnight while wanning to r.t.,
then the reaction was quenched with a saturated solution of NaHCOs (sodium
bicarbonate) (10 mL). The organic layer was diluted with CH2C12 (100 mL) and then
washed with water and brine. The organic layer was separated, dried with anhydrous
sodium sulfate, then filtered and concentrated in vacuo to yield a crude Boc-protected
methanesulfonamide product. The product was purified by flash chromatography
(eluted with 10% EtOAc in hexane) to afford (methylsulfonyl)[(li?)-1-phenyl-ethyl]-
carbamic acid tert-butyl ester Compound llf β-89 g, 80%) as a colorless oil.


Adapting a published procedure (Tozer MJ, Woolford AJA and Linney IA,
Synlett, 1998,2, 186-188) to obtain the target compound, a 1M solution of KOtBu
(potassium tert-butoxide) in THF (0.75 mL, 0.75 mMol) was added dropwise to a
solution of the ester Compound llf (0.070 g, 0.250 mMol) in anhydrous THF (5 mL) at
-78 °C under a N2 atmosphere. After 45 min, Compound lie (0.060 g, 0.250 mMol)
diluted in THF (3 mL) was added dropwise. The solution was reacted over a 15 hr
period while warming to ambient temperature. The reaction was quenched with water
(5 mL). The organic layer was diluted with EtOAc (100 mL) and then washed with
water and brine. The organic layer was separated and dried with anhydrous sodium
sulfate, then filtered and concentrated in vacuo to yield a crude product. The product
was purified by flash chromatography (eluted with 20% EtOAc in hexane) to give
Compound 260 (0.079 g (75%), as a white solid.
MS nt/z 422 (MH+); 'H NMR (CDC13,400 MHz) 8 7.56 (d, J= 15.5 Hz, 1H),
7.35-7.19 (m, 8H), 7.11-7.09 (m, 2H), 6.42 (d, J= 15.5 Hz, 1H), 5.21 (s, 2H), 4.61-4.11
(m, 2H), 2.45-2.41 (m, 2H), 2.36-2.33 (m, 2H), 1.75-1.67 (m, 4H), 1.55 (d, /= 6.5 Hz,
3H).
Example 12
3-(l-benzyl-4,5,6,7-tetrahydro-lH-indazol-3-yl)-N-[(li?)-1-
phenyl-ethyl]-acrylamide (Cpd 306)

Acety1-(l-phenyl-ethyl)-carbamic acid tert-butyl ester Compound 12a was
synthesized using the procedure of Example 12, replacing mesyl chloride Compound

P qjPOiaR^dfiflS S>m$und 12a1.

Acety1-(l-phenyl-ethyl)-carbamic acid tert-butyl ester Compound lie was
reacted with Compound 12a, using the procedure of Example 12, to afford Compound
306 (0.067 g, 70%) as a white solid.
MS m/z 386 (MH+) 'HNMR (CDC13, 400 MHz) 8 7.56 (d, J= 15.8 Hz, 1H),
7.35-7.23 (m, 8H), 7.11-7.09 (m, 2H), 6.42 (d, J= 15.8 Hz, 1H), 5.77-5.11 (d, 7= 7.4
Hz, 1H), 5.30-5.23 (m, 1H), 5.21 (s, 2H), 2.59-2.56 (m, 2H), 2.44-2.42 (m, 2H), 1.74-
1.71 (m, 4H), 1.54 (d, J= 6.9 Hz, 3H).
Example 13
3-(l-cyclohexyl-4,5,6,7-tetrahydro-lH-indazoI-3-yl)-2-(2-
methoxy-phenyl)-propionic acid ethyl ester (Cpd 332)

Cyclohexylhydrazine hydrochloride Compound Id (6.0 g, 46.5 mMol) and
K2C03 (9.0 g, 65.0 mMol) were added to a solution of Compound 2c (10.10 g, 50.95
mMol) in EtOH (50 mL) at ambient temperature under a N2 atmosphere. The mixture
was stirred overnight, concentrated to dryness, then diluted with water (100 mL) and
EtOAc (500 mL). The organic layer was washed with brine, separated, dried with
anhydrous sodium sulfate, then filtered and concentrated in vacuo to yield a crude oil.
Purification by flash chromatography (eluted with 10% EtOAc in hexane) afforded 1-

" ^^lo^yl^i1!^5-iy^M^P^fe-iIIda2ole-3-carboxyKc acid ethyl ester Compound
13a (12.2 g, 44.14 mMol, 95%) as a yellow oil.

The scheme above, wherein Compound 13a is taken to Compound 332 using
the conditions and reagents indicated, describes the use of a published procedure
(Murray WV, Hadden SK, Wachter MP, J. Het. Chem., 199O,27, 1933-40; US Patent
4,826,868; US Patent 4,898,952; US Patent 5,051,518; US Patent 5,164,381 and US
Patent 5,242,940) to produce the target Compound 332. MS m/z 411 (MH"1").
Example 14
3-(l-cyclohexyl-4,5,6,7-tetrahydro-lH-indazol-3-yl)-2-(2-
methoxy-phenyl)-N-(l,3,3-trimethyl-bicyclo[2.2.1]hept-2-yl)-
propionamide (Cpd 333)

Using the procedure of Example 2, IN NaOH (10 mL) was added to a solution
of ester Compound 336 (0.295 g, 0.72 mMol) in THF (10 mL). The mixture was
stirred for 30 hrs, acidified to pH 2 with IN HC1 and extracted with EtOAc (50 mL).
The organic layer was washed with brine, dried over sodium sulfate, then filtered and
concentrated in vacuo to yield a carboxylic acid Compound 14a (0.150 g, 54%) as a
white solid.


Thionyl chloride (0.25 g, 2.16 mMol) was added to a solution of Compound 14a
(0.15 g, 0.39 mMol) in CH2Cl2 (10 mL) at ambient temperature under a N2 atmosphere.
The mixture was stirred for 3 hrs and concentrated in vacuo to afford Compound 14b.

Triethylamine (0.16 g, 1.58 mMol) and Compound 14b (0.075 g, 0.63 mMol)
were added to a solution of Compound 2i (0.12 g, 0.63 mMol) in CH2Cl2 (10 mL) at
ambient temperature under a N2 atmosphere. The mixture was stirred at r.t. for 3 hrs,
then diluted with water (10 mL) and CH2Cl2 (50 mL). The organic layer was separated,
dried with anhydrous sodium sulfate, then filtered and concentrated in vacuo to yield a
crude oil. Purification by flash chromatography (eluted with 20% EtOAc in hexane)
afforded Compound 333 (0.039 g, 33%) as a white solid. MS m/z 518 (MH*).
Example 15
3-(l-cyclohexyl-4,5,6,7-tetrahydro-lH-indazol-3-yl)-N-(l,3,3-
trimethyl-bicyclo[2.2.1]hept-2-yl)-propionamide (Cpd 50)

Carboxylic acid Compound 15a was derived using a published procedure (as
described in Murray WV, Wachter MP, Barton D and Forero-Kelly Y, Synthesis, 1991,

' ""■'/, "1 8^6'fuSirig11 cyc'loHbxarione as the starting material and carried forward using the
procedure of Example 2 to provide 3-(lKjyclohexyl-4,5,6,7-tetrahydro-lH-indazol-3-
yl)-propionic acid Compound 15b. MS m/z 277 (MH4).

Thionyl chloride (1.94 g, 16.41 mMol) was added to a solution of Compound
15b (1.51 g, 5.47 mMol) in CH2C12 (10 mL) at ambient temperature under a N2
atmosphere. The mixture was stirred for 3 hrs and concentrated in vacuo to afford the
corresponding acid chloride Compound 15c.

Triethylamine (0.16 g, 1.58 mMol) and acid chloride Compound 15c (0.15 g,
0.50 mMol) were added to a solution of Compound 2i (0.08 g, 0.50 mMol) in CH2C12
(10 mL) at ambient temperature under a N2 atmosphere. The mixture was stirred at r.t.
for 3 hrs, then diluted with water (10 mL) and CH2C12 (50 mL). The organic layer was
separated, dried with anhydrous sodium sulfate, then filtered and concentrated in vacuo
to yield a crude oil. Purification by flash chromatography (eluted with 20% EtOAc in
hexane) afforded Compound 50 (0.05 g, 24%) as a white solid. MS m/z 412 (MET1).

Example 16
N-aaWiantan-2-yl-3-(l-cyclohexyl-4,5,6,7-tetrahydro-lH-
indazol-3-yl)-2,2-dimethyl-propionamide (Cpd 66)

3-(l-cyclohexyl-4,5,6,7-tetrahydro-lH-indazol-3-yl)-2,2-dimethyl-propionic
acid Compound 16a was derived by the procedure described in US Patent 5,051,518
whereby cyclohexanone Compound 2a was used as the starting material and carried
forward. MS m/z 305 (MH+). Thionyl chloride (0.28 g, 2.40 mMol) was added to a
solution of the acid Compound 16a (0.24 g, 0.80 mMol) in CH2Cl2 (5 mL) at ambient
temperature under a N2 atmosphere. The mixture was stirred for 3 hrs and concentrated
in vacuo to afford the corresponding acid chloride Compound 16b.

Triethylamine (0.05 g, 0.50 mMol) and acid chloride Compound 16b (0.70 g,
0.60 mMol) were added to a solution of 2-adamantanamine Compound In (0.03 g, 0.20 mMol) in CH2Cl2 (5 mL) at ambient temperature under a N2 atmosphere. The mixture
was stirred at r.t. for 3 hrs, then diluted, with water (10 mL) and CH2Cl2 (50 mL). The
organic layer was separated, dried with anhydrous sodium sulfate, then filtered and
concentrated in vacuo to yield a crude oil. Purification by flash chromatography
(eluted with 20% EtOAc in hexane) afforded Compound 66 (0.032 g, 37%) as a white
solid. MS m/z 438 (MH+).

Example 17
l-cyclohexyl-4,5,6,7-tetrahydro-lH-indazole-3-carboxylicacid
[(li?)-1-cyclohexyl-ethyl]-methylamide (Cpd 328)

Ethyl formate (1.2 mL, 15.0 mMol) was added to a round bottom flask
containing (li2)-1-cyclohexyl-ethylarnme Compound 17a (1.27 g, 10 mMol) at 0 °C
and the mixture was stirred at r.t. for 15 hrs. Excess ethyl formate was removed in
vacuo to obtain N-[(li?)-1-cyclohexyl-ethyl]-formamide Compound 17b (1.55 g) as a
white solid, which was used in the next step without purification. MS m/z 156 (MH*).

A solution of LAH in THF (1.0 M, 15 mL, 15 mMol) was added dropwise via
syringe to a solution of Compound 17b (1.55 g, 10 mMol) in anhydrous THF at 0 °C.
The mixture was heated to reflux for 8 hrs and provided a grayish suspension. The
suspension was cooled to 0 °C and the reaction was quenched carefully by a sequential
addition of water (0.6 mL), 2N NaOH (0.6 mL) and water (2.0 mL). A white residue
was produced, then filtered through a sintered glass funnel and washed with Et20 (20 mL). The solyent from the combined filtrate was removed in vacuo to provide [(li?)-1-
cyclohexyl-ethyl]-methylamine Compound 17c (1.1 g, 72%) as a pale yellow oil, which
was used in the next step without purification. MS m/z 142 (MET*).

The acid chloride Compound 5e (0.04 g, 0.15 mMol) was added to a solution of

P «Al'nielhyiMryidoH^6»:Hell(0.05 g, 0.035 mMol) in CH2C12 (2 mL) and
triethylamine (0.06 mL, 0.5 mMol). The resulting suspension was stirred at r.t. for 2
hrs, diluted with CH2C12 (10 mL), then washed with IN HC1 (2 xlO mL) and water (2
xlO mL). The organic layer was dried over sodium sulfate, then concentrated and
purified on a silica gel column (eluted with 20% EtOAc in hexane) to provide
Compound 328 (44 mg, 80%). MS m/z 372 (MET1}
Example 18
1 -cyclohexyl-4,5,6,7-tetrahydro-l H-indazole-3-carboxylic acid
(cyclohexyl-phenyl)methylamide (Cpd 331)

Hydroxylamine hydrochloride (0.48 g, 6.7 mMol) and sodium acetate (1.4 g,
10.2 mMol) were added to a round bottom flask containing cyclohexyl-phenyl-
methanone Compound 18a (0.97 g, 5.1 mMol) in MeOH (30 mL) at r.t. The mixture
was stirred at r.t. for 15 hrs. The solyent was removed in vacuo and the residue was
extracted with CH2C12. The organic layer was sequentially washed with a saturated
solution of NaHCC>3, then brine. The organic layer was dried over Na2SO4, decanted
and the solyent removed in vacuo to provide cyclohexyl-phenyl-methanone oxime
Compound 18b (1.0 g) as a white solid, which was used in the next step without
purification. MS m/z 204 (MH*).

A solution of Compound 18b (0.45 g, 0.22 mMol) in anhydrous THF (10 mL)
added dropwise via syringe to a suspension of LAH (0.5 g, 1.3 mMol) in THF (20 mL)
at 0 °C. The mixture was heated to reflux for 8 hrs and provided a grayish suspension.
The suspension was cooled to 0 °C and the reaction was quenched carefully by
sequential addition of water (0.5 mL), 2N NaOH (0.5 mL) and water (1.5 mL). A
white residue was produced, then filtered through a sintered glass funnel and washed
with Et20 (20 mL). The solyent from the combined filtrate was removed in vacuo to

"" ^X^iJ^&^I^^-?-§^^melhylaniine Compound 18c (0.38 g, 91%) as a pale
yellow oil, which was used in the next step without purification. MS m/z 190 (MH+).

Using the procedure of Example 5, Compound 18c was reacted with acid
chloride Compound 5e to provide Compound 331.
Example 19
l-cyclohexyl-5-hydroxymethyl-4,5,6,7-tetrahydro-lH-indazole-
3-carboxylic acid (l-adamantan-1-yl-ethyl)-amide (Cpd 143)

Compound 132 (prepared according to the procedure of Example 1, replacing
Compound lh with 1-adamantan-1-yl-ethylamine) (25.0 mg, 0.052 mMol), LiBILt
(lithium borohydride) (2.0 mg, 0.092 mMol) and methanol (0.01 mL) in ether (3.0 mL)
were refluxed for 0.5 hr. The reaction was quenched with IN HC1 (2.0 mL). The
organic layer was concentrated, extracted with DCM (dichloromethane) (2 x 5.0 mL)
and dried over Na2SO4. The solyent was evaporated to give Compound 143 (22.0 mg,
96%) as a white solid.
MS m/z 440 (MH4"), 462 (MNa4); 'HNMR (CDC13, 300 MHz) 8: 6.71 (1H, d, J
= 10.1 Hz), 3-82 (2H, m), 3.62 (1H, m), 3.41 (1H, m), 2.99 (1H, dd, J = 16.4, 5.0 Hz),
2.65 (1H, m), 2.47 (1H, m), 2.24 (1H, m), 2.03 (1H, m), 1.83 (10H, m), 1.52 (14H, m),
1.25 (4H, m), 1.03 (3H, d, J = 6.8 Hz).

Example 20
2-[1-(4-fluoro-phenyl)-7-phenethyl-4,5,6,7-tetrahydro-lH-
indazol-3-yl]-ethenesulfonic acid (l-phenyl-ethyl)-aniide (Cpd
258)
2-[1-(4-fluoro-phenyl)-7-phenemyl-4,5,6,7-tetrahydro-lH-
indazol-3-yl]-ethenesulfonic acid (l-cyclohexyl-ethyl)-amide
(Cpd 259)

Cyclohexylamine Compound 20a (4.64 g, 46.50 mmol) was added to a solution
of cyclohexanone Compound 2a (4.0 g, 46.50 mmol) in benzene (100 mL) at ambient
temperature under a N2 atmosphere. The mixture was refluxed at 80 °C for 5 hours,
using a Dean Stark apparatus for the removal of water, and concentrated to dryness.
The crude product was purified by distillation at aspirator pressure to afford
cyclohexyl-cyclohexylidene-amine Compound 20b (7.33 g, 88%) as a clear oil.

s-BuLi (28.0 mL, 1.3 M) was added slowly to a solution of Compound 20b (7.0 g) in THF (50 mL) at -78 °C. The mixture stirred for 1 hr at -78 °C and then (2-chloro-
ethyl)-benzene Compound 20c (5.11 g, 36.4 mmol) in THF (10 mL) was added
dropwise. The reaction mixture was stirred for 24 hrs while warming to r.t. The
reaction was quenched with IN HC1 (5 mL), then diluted with water (100 mL) and
EtOAc (500 mL). The organic layer was washed with brine, separated and dried with
anhydrous sodium sulfate, then filtered and concentrated in vacuo to yield a crude
product. Purification by flash chromatography (eluted with 10% EtOAc in Hexane)
afforded 2-phenethyl-cyclohexanone Compound 20d (4.05 g, 20.0 mMol, 58%) as a
yellow oil.

J'CT/USOl
Compound 20d was carried forward in place of Compound 2a using the
procedure of Example 11 to provide 2-(2,2-dimethoxy-acetyl)-6-phenethyl-
cyclohexanone Compound 20e.

Using the procedure of Example 1O, Compound 20e was used in place of [3-(4-
fluoro-benzylidene).-2-oxo-cyclohexyl]-oxo-acetic acid ethyl ester Compound 10c and
(4-fluoro-phenyl)-hydrazine Compound 20f was used in place of (2,4-dichloro-phenyl)-
hydrazine Compound lOd to provide l-[1-(4-fluoro-phenyl)-7-phenethyl-4,5,6,7-
tetrahydro-lH-indazol-3-yl]-2,2-dimethoxy-ethanone Compound 20g.

Using the procedure of Example 11, Compound 20g was used in place of [3-(4-
fluoro-benzylidene)-2-oxo-cyclohexyl]-oxo-acetic acid ethyl ester Compound lid to
provide 1-(4-fluoro-phenyl)-7-phenethyl-4,5,6,7-tetrahydro-lH-indazole-3-
carbaldehyde Compound 20h.


Using the procedure of Example 11, Compound 20h was used in place of 1-
benzyl-4,5,6,7-tetrahydro-lH-indazole-3-carbaldehyde Compound lie and
(methylsulfonyl)(l-phenyl-ethyl)-carbamic acid tert-butyl ester Compound 20i was
used in place of (methylsulfonyl)[(li?)-1-phenyl-ethyl]-carbamic acid tert-butyl ester
Compound llf to provide Compound 258.

Using the procedure of Example 11, Compound 20h was used in place of 1-
benzyl-4,5,6,7-tetrahydro-lH-indazole-3-carbaldehyde Compound lie and
(methylsulfonyl)(l-cyclohexyl-ethyl)-carbamic acid tert-butyl ester Compound 20j was
used in place of (methylsulfonyl)[(li?)-1-phenyl-ethyl]-carbamic acid tert-butyl ester
Compound 1 If to provide Compound 259.

Example 21
l-cyclohexyl-4,5,6,7-tetrahydro-lH-indazole-3-carboxylic acid
N'-cyclooctyl-hydrazide (Cpd 300)
According to a published procedure, cyclooctanone Compound 21a was reacted
with hydrazinecarboxylic acid tert-butyl ester to produce an intermediate N'-
cyclooctylidene-hydrazinecarboxylic acid tert-butyl ester Compound 21b (as described
in Ghali NK and Venton DL, J. Org. Chem., 1981,46, 5413). According to the
published procedure, Compound 21b was carried forward to provide cyclooctyl-
hydrazine hydrochloride Compound 21c.

According to the procedure of Example 5, the acid chloride Compound 5e was
reacted with Compound 21c in a solution of CH2C12 and triethylamine to provide an
amide Compound 300. MS m/z 345.1 (MH*).
Example 22
l-cyclohexyl-5-oxo-4,5,6,7-tetrahydro-lH-indazole-3-
carboxylic acid (l,3,3-trimethyl-bicyclo[2.2.1]hept-2-yl)-amide
(Cpd 96)

According to the procedure of Example 2, a solution of 1,4-

' Qifea^^l^J^icayy^A'^cSmpound 22a in ether was added to a solution of
LHMDS in ether at -78 °C. The diethyloxalate Compound 2b was added to the mixture
and reacted to produce an oxo-(8-oxo-l,4-dioxa-spiro[4.5]dec-7-yl)-acetic acid ethyl
ester Compound 22b.

According to the procedure of Example 1, Compound 22b was reacted with a
solution of cyclohexyl hydrazine hydrochloride Compound Id and K2CO3 in CH2Cl2 to
produce (A^-8-cyclohexyl-l,4-dioxa-spiro[4.6]-4,5,6,7-tetrahydro-lif-indazol-10-yl)
carboxylic acid ethyl ester Compound 22c.

According to the procedure of Example 8, Compound 22c was used in place of
5-tert-butoxycarbonylamino-1-cycIohexyl-4,5,6,7-tetrahydro-lH-indazole-3-carboxylic
acid ethyl ester Compound 8c and carried forward to provide (A^-8-cyclohexyl-l,4-
dioxa-spiro[4.6]-4,5,6,7-tetrahydro-l//-indazol-10-yl) carboxylic acid (1,3,3-trimethyl-
bicyclo[2.2. l]hept-2-yl)-amide Compound 22d.

2N HC1 (5 equiv.) was added to a solution of Compound 22d (0.030 g 0.068
mMol) in THF (10 mL) at 0 °C. The mixture was stirred for 1 hr while wanning to

Example 26
1-(2,4-dichloro-phenyl)-7- β-methoxy-phenyl)-4,5,6,7-
tetrahydro-lH-indazole-3-carboxylic acid [(1S)-2-chloro-1-
phenyl-ethyl]-amide (Cpd 316)

Thionyl chloride (0.01 g, 0.08 mmol) was added to a solution of Compound 313
(0.02 g, 0.04 mmol) in 5 mL CH2Cl2 at 0 °C under a N2 atmosphere. The mixture was
stirred for 2 hrs while warming to ambient temperature, then concentrated in vacuo to
afford the corresponding acid chloride. Purification by flash chromatography (eluted
with 20% EtOAc in hexane) afforded Compound 316 (0.036 g, 95%) as a white solid.
MS m/z 554 (MH+).
Example 27
1 -adamantan-1 -yl-3-( 1 -cyclohexyl-4,5,6,7-tetrahydro-1H-
indazol-3-yl)-urea (Cpd 182)

1-isocyanato-adamantane Compound 27a (4.6 mg, 0.026 mMol) and triethyl
amine (0.01 mL, 0.072 mMol) were added to a solution of l-cyclohexyl-4,5,6,7-
tetrahydro-lH-indazol-3-ylamine Compound 6c (5 mg, 0.023 mMol) (Prepared using
the procedure of Example 6). The mixture was stirred at r.t. for 4 hrs. The mixture was
then concentrated and purified on a silica gel column (eluted with 15% EtOAc/hexane)

" CafefeSit IS^eftturl:" TWriactfion was quenched with water (2 mL), neutralized to pH
7 with K2CO3 and diluted with EtOAc (20 mL). The organic layer was washed with
water and brine, then separated, dried with anhydrous sodium sulfate and filtered. The
product was concentrated in vacuo to afford Compound 96 (0.021 g, 79%) as a
colorless oil. MS m/z 398 (MIT1).
Example 23
7-chloro-1 -cyclohexyl-4,5,6,7-tetrahydro-1 H-indazole-3-
carboxylic acid [(l1S,,2i?)-2-hydroxymethyl-cyclohexyl]-amide
(Cpd60)

1 -cyclohexyl-7-methoxy-4,5,6,7-tetrahydro-1 H-indazole-3 -carboxylic acid
Compound 23a was prepared according to the procedure of Example 2, wherein 2-
methoxy-cyclohexanone was used in place of Compound 2a as the starting material.
Thionyl chloride (0.20 g, 1.7 mmol) was added to a solution of Compound 23a
(0.15 g, 0.55 mmol) in CH2Cl2 (10 mL) at ambient temperature under a N2 atmosphere.
The mixture was stirred for 3 hrs at 35 °C, cooled to ambient temperature, then
concentrated in vacuo to afford the corresponding 7-chloro-1-cyclohexyl-4,5,6,7-
tetrahydro-lH-indazole-3-carbonyl chloride Compound 23b.

NEt3 (triethylamine) (0.10 g, 0.98 mMol) and Compound 23b (0.06, 0.20 mMol) were added to a solution of (lif,2£)-(2-arnino-cyclohexyl)-methanol
hydrochloride Compound 23c (0.064 g, 0.39 mMol) in CH2C12 (10 mL) at ambient
temperature under a N2 atmosphere. The mixture was stirred at r.t. for 3 hrs, then

C-ilxitey^M-yi'ter ('l^nSylhd'cHaCb (50 mL). The organic layer was separated,
dried with anhydrous sodium sulfate, then filtered and concentrated in vacuo to yield a
crude product. Purification by flash chromatography (eluted with 20% EtOAc in
hexane) afforded Compound 60 (0.034 g, 45%) as a white solid. MS m/z 394 (MH*).
Example 24
(26',3i?)-3-[(l-cyclohexyl-7-hydroxy-4,5,6,7-tetrahydro-lH-
indazole-3-carbonyl)-amino]-bicyclo[2.2.1]heptane-2-carboxylic
acid ethyl ester (Cpd 164)

7-chloro-1-cyclohexyl-4,5,6,7-tetrahydro-lH-indazole-3-carbonyl chloride
Compound 23b was hydrolyzed to provide l-cyclohexyl-7-hydroxy-4,5,6,7-tetrahydro-
lH-indazole-3-carboxyIic acid Compound 24a.

1- β-dimemylaminopropyl)-3-ethylcarbodiimide hydrochloride (EDCI) (0.15 g,
0.81 mmol), dimethylaminopyridine (DMAP) (8 mg) and (2£,3i2)-3-amino-
bicyclo[2.2.1]heptane-2-carboxylic acid ethyl ester Compound 24b (0.059 g, 0.27
mmol) were added to a solution of l-cyclohexyl-7-hydroxy-4,5,6,7-tetrahydro-lH-
indazole-3-carboxyIic acid Compound 24a (0.071 g, 0.27 mmol) in 5 mL CH2Cl2 at 0 °C under a N2 atmosphere. The mixture was stirred for 6 hrs while warming to r.t., then
concentrated in vacuo and purified by flash chromatography (eluted with 15% EtOAc
in hexane) to afford Compound 164 (0.075 g, 65%) as a white solid.

Example 25
1-(2,4-dichloro-phenyl)-7- β-methoxy-phenyl)-4,5,6,7-
tetrahydro-lH-indazole-3-carboxylic acid [(1S)-2-hydroxy-1-
phenyl-ethyl]-amide (Cpd 313)

According to the procedure of Example 2, a solution of 2- β-methoxy-phenyl)-
cyclohexanone Compound 25a (commercially available) in ether was carried forward
in place of Compound 2a to produce 1-(2,4-dichloro-phenyl)-7- β-methoxy-phenyl)-
4,5,6,7-tetrahydro-lH-indazole-3-carbonyl chloride Compound 25b.

According to the procedure of Example 2, triemylamine and Compound 25b
were reacted with (1S)-amino-2-phenyl-ethanol Compound 25c in CH2Cl2 to provide
amide Compound 313.

to give Compound 182 (5.5 mg, 60%). MS m/z 397 (MH+).
Additional compounds may be made according to the synthetic methods of the
present invention by one skilled in the art, differing only in possible starting materials,
reagents and conditions used in the instant methods.
Biological Examples
The following examples illustrate that the compounds of the present invention
are CB receptor modulators useful for treating, ameliorating or preventing a
cannabinoid receptor mediated syndrome, disorder or disease in a subject in need
thereof.
Example 1
Binding Assay for CB1 or CB2 Agonists or Inverse Agonists
The human CB1 and CB2 receptors were stably expressed in SK-N-MC cells
transfected with pcDNA3 CB-1 (human) or pcDNA3 CB-2 (human). The cells were
grown in T-180 cell culture flasks under standard cell culture conditions at 37 °C in a 5%
CO2 atmosphere. The cells were harvested by trysinization and homogenized in a
homogenization buffer (10 mM Tris, 0.2 mM MgCl2, 5 mM KC1, with protease inhibitors
aprotinin, leupeptin, pepstatin A and bacitracin) and centrifuged (2000 g). The supernatant
was then centrifuged in 2M sucrose (31,300 g) to produce a semi-purified membrane
pellet. The pellet was resuspended in homogenization and store at -80 °C.
• On the day of the assay, the pellet was thawed on ice and diluted in assay buffer
(50 mM Tris-HCl, 5 mM MgCl2, 2.5 mM EDTA, 0.5 mg/mL fatty acid free bovine
serum albumin, pH 7.5). The diluted membrane was added with buffer, test compound
or standard and the radioligand [H]3+-CP-55,940_(0.2 nM) to the wells of a 96-well
polypropylene plate. Non-specific binding was measured in wells containing 10 uM
WIN 55,212. The plate was covered and incubated for 90 minutes at 30 °C. The
contents were then aspirated onto a Packard Unifilter GF/C filter bottom plate prewet
with 0.5% polyethyleneimine. The wells of the polypropylene plate were rinsed and
aspirated seven times with a 0.9% saline-0.5% Tween 20 solution. The Unifilter plate
was dried, a scintillation cocktail was added to each well and the counts representing
binding were quantitated in a TopCount scintillation counter.

The IC50 binding values for compounds tested were calculated by linear regression
and were obtained from studies in which varying compound concentrations were used.







Example 2
Functional Cell-Based Assay for CB1 or CB2 Agonist and Inverse Agonist Effects on
Intra-Cellular Adenylate Cyclase Activity
The CB1 and CB2 receptors are G-protein coupled receptors (GPCR) which
influence cell function via the Gi-protein. These receptors modulate the activity of
intracellular adenylate cyclase which in turn produces the intracellular signal messenger
cyclic-AMP (cAMP).
At baseline, or during non-ligand bound conditions, these receptors are
constitutively active and tonically suppress adenylate cyclase activity. The binding of
an agonist causes further receptor activation and produces additional suppression of

adenylate cyclase activity.The binding of an inverse agonist inhibits the constitutive
activity of the receptors and results in an increase in adenylate cyclase activity.
By monitoring intracellular adenylate cyclase activity, the ability of compounds
to act as agonists or inverse agonists can be determined.
ASSAY
Test compounds were evaluated in SK-N-MC cells which, using standard
transfection procedures, were stably transfected with human cDNA for pcDNA3-CRE β-
gal and pcDNA3 CB1 receptor (human) or pcDNA3 CB2 receptor (human). By
expressing CRE P-gal, the cells produced P-galactosidase in response to CRE promoter
activation by cAMP. Cells expressing CRE P-gal and either the human CB1 or CB2
receptor will produce less β-galactosidase when treated with a CB1/CB2 agonist and will
produce more P-galactosidase when treated with a CB1/CB2 inverse agonist.
CELL GROWTH
The cells were grown in 96-well plates under standard cell culture conditions at 37
°C in a 5% CO2 atmosphere. After 3 days, the media was removed and a test compound in
media (wherein the media was supplemented with 2 mM L-glutamine, 1M sodium
pyruvate, 0.1% low fatty acid FBS (fetal bovine serum) and antibiotics) was added to the
cell. The plates were incubated for 30 minutes at 37 °C and the plate cells were then
treated with forskolin over a 4-6 hour period, then washed and lysed. The P-galactosidase
activity was quantitated using commercially available kit reagents (Promega Corp.
Madison, WI) and a Vmax Plate R6ader (Molecular Devices, Inc).
CB1 RECEPTOR MEDIATED CHANGE IN CRE P-GAL EXPRESSION (TABLE 2A & 2B)
For cells expressing CRE P-gal and the CB1 receptor, CB1 agonists reduced β-
galactosidase activity in a dose-dependent manner and CB1 inverse agonists increased
p-galactosidase activity in a dose-dependent manner.
The change in P-galactosidase activity was determined by setting a vehicle
treated cell's activity value at 100% and expressing the P-galactosidase activity
measured in a corresponding compound treated cell as a percent of the vehicle treated
cell activity.
CB 1 Receptor Results
The EC50 values for compounds tested were calculated by linear regression and
were obtained from studies in which varying compound concentrations were used.


CB2 RECEPTOR MEDIATED CHANGE IN CRE Β-GAL EXPRESSION (TABLE 2C & 2D)
For cells expressing CRE |3-gal and the CB2 receptor, CB2 agonists reduced |3-
galactosidase activity in a dose-dependent manner and CB2 inverse agonists increased
P-galactosidase activity in a dose-dependent manner.
The change in P-galactosidase activity was determined by setting a vehicle
treated cell's activity value at 100% and expressing the β-galactosidase activity
measured in a corresponding compound treated cell as a percent of the vehicle treated
cell activity.
CB2 Receptor Binding Results
The EC50 values for compounds tested were calculated by linear regression and
were obtained from studies in which varying compound concentrations were used.



Example 3
Effect of Sub-Chronic Treatment on Food Consumption and Body Weight Gain in
Sprague-Dawley Rats
The effect of daily administration of a compound of the present invention was
tested in male Sprague-Dawley rats. Animals in each dose group (n=6/group) were
orally administered a daily dose of either a test compound (at a 3, 10 or 30 mg/Kg dose)
or vehicle (50% PEG-400 in distilled water) in a volume of 2 mL/Kg of body weight
immediately prior to the beginning of the dark phase each day for a period of 7 days.
Food consumption was electronically monitored during the dark and light phase
that followed dosing (24 hrs total). The effect on food intake was expressed as the
percent change of total food consumed in the 24 hr period after dosing to total food
consumed in the 24 hr period prior to dosing.
EFFECT ON TOTAL FOOD CONSUMPTION
Animals at all three test compound dose levels had a relatively dose-dependent
decrease in total food consumed compared to animals dosed with vehicle at the end of
the treatment period.
EFFECT ON BODY WEIGHT GAIN
Animals at all three test compound dose levels had a dose-dependent decrease
in body weight gain compared to animals in the vehicle chow group over the treatment
period.

Example 4
Effect of Acute Treatment on Food Consumption in Sprague-Dawley Rats
The effect of acute, single-dose administration of a compound of the present
invention was tested in male Sprague-Dawley rats. Animals in each dose group
(n=6/group) were orally administered a single dose of either a test compound (at a 3,10
or 30 mg/Kg dose) or vehicle (50% PEG-400 in distilled water) in a volume of 2
mL/Kg of body weight immediately prior to the beginning of the dark phase.
Food consumption was electronically monitored during the dark and light phase
prior to dosing and the dark and light phase that followed dosing (48 hrs total). The
effect on food intake was expressed as the percent change of total food consumed in the
24 hr period after dosing to total food consumed in the 24 hr period prior to dosing.
EFFECT ON TOTAL FOOD CONSUMPTION
Animals administered a single dose of the test compound at all three dose levels
had a dose-dependent decrease in total food consumed compared to animals
administered a single vehicle dose (p value Example 5
Effect of Chronic Treatment on Body and Epididymal Fat Pad Weight in Sprague-
Dawley Rats
The effect of daily administration of a compound of the present invention was
tested in male Sprague-Dawley rats. Animals were fed chow (10% Kcal) containing
either a test compound (test chow) or vehicle (vehicle chow) over a 28 day treatment
period. The test chow was formulated based upon the estimated daily consumption
needed to achieve a 1, 3, 10 or 30 mg/kg dose level.
EFFECT ON BODY WEIGHT GAIN
Animals in the test chow groups had a dose-dependent decrease in body weight
gain compared to animals in the vehicle chow group over the treatment period.
EFFECT ON EPIDIDYMAL FAT PAD WEIGHT
Animals in the test chow groups had a relatively dose-dependent decrease in
epididymal fat pad weight compared to animals in the vehicle chow group over the
treatment period (p value Example 6
Effect of Acute Treatment on Food Consumption and Meal Count in Ob/Ob Mice
The effect of acute, single-dose administration of a compound of the present
invention was tested in hyperphagic obese ob/ob mice. Animals in each dose group
(n=8/group) were orally administered a single dose of either a test compound (at a 3, 10

or 30 mg/kg dose)or vehicle (50% PEG-400 in distilled water) in a volume of 2
mL/Kg of body weight immediately prior to the beginning of the dark phase.
Food consumption was electronically monitored during the dark and light phase
prior to dosing and the dark and light phase that followed dosing (48 hrs total). The
effect on food intake was expressed as the percent change of total food consumed in the
24 hr period after dosing to total food consumed in the 24 hr period prior to dosing.
EFFECT ON TOTAL FOOD CONSUMPTION
Animals administered a single dose of the test compound at all three dose levels
had a relatively dose-dependent decrease in total food consumed compared to animals
administered a single vehicle dose (one-way ANOVA p value trend in total meal count.
Example 7
Effect of Chronic Treatment on Body Weight Gain, Adipose Distribution, Energy
Expenditure and Locomotor Activity in Ob/Ob Mice
The effect of daily administration of a compound of the present invention was
tested in ob/ob mice. The mice were fed chow containing either a test compound (test
chow) or vehicle (vehicle chow) over a 26 day treatment period. The test chow was
formulated based upon the estimated daily consumption needed to achieve a 3, 10 or 30
mg/kg dose level.
EFFECT ON BODY WEIGHT GAIN
Animals in the 10 or 30 mg/kg test chow groups had a dose-dependent decrease
in body weight gain compared to animals in the vehicle chow group over the treatment
period.
EFFECT ON ADIPOSE DISTRIBUTION
Adipose distribution was measured by quantitative computerized tomography
for mice in the 30 mg/kg test chow group.
Animals in the test chow group had a lower total mass (as measured by
abdominal cross-section), a lower adipose mass and reduced visceral adipose
compartments compared to animals in the vehicle chow group over the treatment period
(one-way ANOVA p value unaffected.
EFFECT ON ENERGY EXPENDITURE AND LOCOMOTOR ACTIVITY
Energy expenditure was measured by indirect calorimetry measurements during
both light and dark phases for mice in the 30 mg/kg test chow group.

group had a decreased respiratory quotient (CO2/O2),
suggesting a shift in the primary fuel source from carbohydrates to fatty acids, an
increased energy metabolism (O2) and slightly increased spontaneous motor activity (as
determined by summation of movement along the X, Y and Z axes) compared to
animals in the vehicle chow group over the treatment period (one-way ANOVA p value
O.05).
Example 8
Effect of Chronic Treatment on Body, Epididymal Fat Pad and Liver Weight, Adipose
Distribution, Energy Expenditure and Locomotor Activity and Plasma Triglyceride and
Cholesterol Levels in Mice with Diet-Induced Obesity
The effect of daily administration of a compound of the present invention was
tested in mice with diet-induced obesity (DIO). Obesity was induced by feeding "high-
fat" (60% Kcal) chow to non-leptin-deficient mice over a 4 month period. The mice
with DIO thus produced were then fed "high-fat" chow containing either a test
compound (test chow) or vehicle (vehicle chow) over a 28 day treatment period. The
test chow was formulated based upon the estimatated daily consumtion needed to
achieve a 1, 3, 10 or 30 mg/kg dose level.
EFFECT ON BODY WEIGHT GAIN
Animals in all four test chow groups had a dose-dependent decrease in body
weight gain compared to animals in the vehicle chow group over the treatment period.
EFFECT ON EPIDIDYMAL FAT PAD WEIGHT Animals in all four test chow groups had either maintained epididymal fat pad
weight or lost weight compared to animals in the vehicle chow group over the treatment
period (one-way ANOVA p value EFFECT ON LIVER WEIGHT AND FAT CONTENT
Animals in all four test chow groups either maintained relatively the same liver
weight or lost weight compared to animals in the vehicle chow group over the treatment
period (one-way ANOVA p value Animals in the 10 and 30 mg/kg test chow groups tested for liver fat content
also had a decrease in fat content (as a percent of total liver area) compared to animals
in the vehicle chow group over the treatment period (one-way ANOVA p value EFFECT ON ADIPOSE DISTRIBUTION
Adipose distribution was measured by quantitative computerized tomography
for mice in the 30 mg/kg test chow group.

Animals in the test chow group had a lower total mass (as measured by
abdominal cross-section), a lower adipose mass and reduced visceral adipose
compartments compared to animals in the vehicle chow group over the treatment period
(one-way ANOVA p value unaffected.
EFFECT ON ENERGY EXPENDITURE AND LOCOMOTOR ACTIVITY
Energy expenditure was measured by indirect calorimetry measurements during
both light and dark phases for mice in the 30 mg/kg test chow group.
Animals in the test chow group had a decreased respiratory quotient (CO2/O2),
suggesting a shift in the primary fuel source from carbohydrates to fatty acids, an
increased energy metabolism (O2) and relatively no increase in spontaneous motor
activity (as determined by summation of movement along the X, Y and Z axes)
compared to animals in the vehicle chow group over the treatment period (one-way
ANOVA p value EFFECT ON PLASMA TRIGLYCERIDE AND CHOLESTEROL LEVELS
Animals in all four test chow groups had a decreased plasma triglyceride level
compared to animals in the vehicle chow group over the treatment period (one-way
ANOVA p value It is to be understood that the preceding description of the invention and various
examples thereof have emphasized certain aspects. Numerous other equivalents not
specifically elaborated on or discussed may nevertheless fall within the spirit and scope of
the present invention or the following claims and are intended to be included.

WE CLAIM:
1. A compound having a structure according to formula I:

wherein
X1 is absent, or is lower alkylene;
R1 is selected from the group consisting of aryl, C3-C12 cycloalkyl, or heterocyclyl,
any of which are optionally substituted at one or more positions by halogen,
lower alkyl, hydroxy or lower alkoxy;

R4 is CH-aryl wherein aryl is optionally substituted at one or more positions by
hydroxy, lower alkyl, lower alkoxy or halogen; or CH-heterocyclyl wherein

heterocyclyl is optionally substituted at one or more positions by hydroxy, lower
alkyl, lower alkoxy or halogen;
R6 is absent;
R6a is hydrogen; lower alkyl; or aryl optionally substituted by one or more of
halogen, hydroxy, lower alkoxy, carboxy or alkoxycarbonyl;
R9 is aryl optionally substituted by one or more hydroxy, halogen, -NH(R6a), -SO2-
NH(R6a), lower alkyl, carboxy, alkoxycarbonyl, lower alkoxy, hydroxy-alkylene-,
aryloxy or arylalkoxy; C3-C12 cycloalkyl optionally substituted by one or more
hydroxy, halogen, amino, lower alkyl, carboxy, alkoxycarbonyl, lower alkoxy,
hydroxy-alkylene-, aryloxy, arylalkoxy, or lower alkylene; or heterocyclyl
optionally substituted by one or more hydroxy, halogen, amino, lower alkyl,
carboxy, alkoxycarbonyl, lower alkoxy, hydroxy-alkylene-, aryloxy or arylalkoxy;
R8a is hydrogen or lower alkyl;
Z2 is absent; or is lower alkylene optionally substituted at one or more positions
by aryl, cycloalkyl, halogen, hydroxy, lower alkyl, lower alkoxy, carboxy,
alkoxycarbonyl or aryl;
or a pharmaceutically acceptable salt or polymorph thereof.
2. The compound as claimed in claim 1, wherein X1 is absent and R1 is aryl
optionally substituted at one or more positions by lower alkyl, lower alkoxy
or halogen.

3. The compound as claimed in claim 1 selected from the group consisting of:



and pharmaceutically acceptable forms thereof.

4. The compound as claimed in claim 1 selected from the group consisting
of:



and pharmaceutically acceptable forms thereof.


ABSTRACT

Title: Tetrahydro-indazole cannabinoid modulators.
This invention is directed to a tetrahydro-indazole cannabinoid modulators
compound of formula I:


and a method for use in treating, ameliorating or preventing a cannabinoid
receptor mediated syndrome, disorder or disease.

Documents:

03074-kolnp-2006 abstract.pdf

03074-kolnp-2006 claims.pdf

03074-kolnp-2006 correspondence others.pdf

03074-kolnp-2006 description(complete).pdf

03074-kolnp-2006 form-1.pdf

03074-kolnp-2006 form-2.pdf

03074-kolnp-2006 form-26.pdf

03074-kolnp-2006 form-3.pdf

03074-kolnp-2006 form-5.pdf

03074-kolnp-2006 international publication.pdf

03074-kolnp-2006 international search authority report.pdf

03074-kolnp-2006 pct form.pdf

03074-kolnp-2006-correspondence others-1.1.pdf

03074-kolnp-2006-form-26-1.1.pdf

03074-kolnp-2006-priority document.pdf

3074-KOLNP-2006-ABSTRACT.pdf

3074-KOLNP-2006-AMANDED CLAIMS.pdf

3074-kolnp-2006-assignment.pdf

3074-kolnp-2006-correspondence.pdf

3074-kolnp-2006-description (complete).pdf

3074-KOLNP-2006-EXAMINATION REPORT REPLY RECIEVED.pdf

3074-kolnp-2006-examination report.pdf

3074-KOLNP-2006-FORM 1.pdf

3074-kolnp-2006-form 18.1.pdf

3074-kolnp-2006-form 18.pdf

3074-KOLNP-2006-FORM 2.pdf

3074-kolnp-2006-form 3.1.pdf

3074-KOLNP-2006-FORM 3.pdf

3074-kolnp-2006-form 5.pdf

3074-kolnp-2006-gpa.pdf

3074-kolnp-2006-granted-abstract.pdf

3074-kolnp-2006-granted-claims.pdf

3074-kolnp-2006-granted-description (complete).pdf

3074-kolnp-2006-granted-form 1.pdf

3074-kolnp-2006-granted-form 2.pdf

3074-kolnp-2006-granted-specification.pdf

3074-KOLNP-2006-OTHERS.pdf

3074-kolnp-2006-others1.1.pdf

3074-KOLNP-2006-PETITION UNDER RULE 137.pdf

3074-kolnp-2006-reply to examination report.pdf

abstract-03074-kolnp-2006.jpg


Patent Number 254078
Indian Patent Application Number 3074/KOLNP/2006
PG Journal Number 38/2012
Publication Date 21-Sep-2012
Grant Date 18-Sep-2012
Date of Filing 24-Oct-2006
Name of Patentee JANSSEN PHARMACEUTICA N.V.
Applicant Address TURNHOUTSEWEG 30, B-2340, BEERSE
Inventors:
# Inventor's Name Inventor's Address
1 BHARAT LAGU 41 FISHER DRIVE, HILLSBOROUGH, NJ 08844
2 MENG PAN 155 BRANDON COURT, NESCHANIC STATION, NJ 08853
3 MICHAEL P. WACHTER 52 NORTH STREET, BLOOMSBURY, NJ 08804
4 MINGDE XIA 71 WILLOW ROAD, BELLE MEAD, NJ 08502
5 Fina Liotta 342 Edgewood Avenue, Westfield, NJ 07090
6 FINA LIOTTA 342 EDGEWOOD AVENUE, WESTFIED, NJ 07090
PCT International Classification Number C07D 231/56
PCT International Application Number PCT/US2005/009819
PCT International Filing date 2005-03-23
PCT Conventions:
# PCT Application Number Date of Convention Priority Country
1 60/555,890 2004-03-24 U.S.A.