Title of Invention

OPTICALLY ACTIVE AMMONIUM SALT COMPOUND, PRODUCTION INTERMEDIATE THEREOF AND METHOD FOR PRODUCING SAME

Abstract An optically active quaternary ammonium salt compound represented by formula (1), wherein R1 represents a halogen, a C1-8 alkyl which is optionally substituted and which is linear, branched, or cyclic, a C2-8 alkenyl which is optionally substituted, a C2-8 alkynyl which is optionally substituted, a C6-14 aryl which is optionally substituted, a C3-8 heteroaryl which is optionally substituted, a C1-8 alkoxy which is optionally substituted and which is linear, branched, or cyclic, or a C7-16 aralkyl which is optionally substituted; R2 and R21 each independently represents hydrogen, halogen, nitro, a C1-8 alkyl which is optionally substituted and which is linear, branched, or cyclic, a C2-8 alkenyl which is optionally substituted, a C2-8 alkynyl which is optionally substituted, a C6-14 aryl which is optionally substituted, a C1-8 alkoxy which is optionally substituted and which is linear, branched, or cyclic, or a C7-16 aralkyl which is optionally substituted; one of combinations of R1 and R21, and R2 and R21, may bond to form a C1-6 alkylene which is optionally substituted, a C1-6 alkylenemonooxy which is optionally substituted, or a C1-6 alkylenedioxy which is optionally substituted; R3 and R4 each independently represents hydrogen, a C6-14 aryl which is optionally substituted, a C3-8 heteroaryl which is optionally substituted, or a C7-16 aralkyl 79 which is optionally substituted, with a proviso that R and R4 are not hydrogen at the same time; R5 represents hydrogen, halogen, a C1-8 alkyl which is optionally substituted and which is linear, branched, or cyclic, a C1-8 alkoxy which is optionally substituted and which is linear, branched, or cyclic, a C2-8 alkenyl which is optionally substituted, or a C2-8 alkynyl which is optionally substituted; R6 represents halogen, a C1-8 alkyl which is optionally substituted and which is linear, branched, or cyclic, a C1-8 alkoxy which is optionally substituted and which is linear, branched, or cyclic, a C2-8 alkenyl which is optionally substituted, or a C2-8 alkynyl which is optionally substituted, and R5 and R6 may bond to form an aromatic ring which is optionally substituted; ring A and ring B do not have a same substituent at the same time; symbols * and ** represent an optical activity having an axial chirality; and X- represents an anion.
Full Text 1
OPTICALLY ACTIVE AMMONIUM SALT COMPOUND, PRODUCTION
INTERMEDIATE THEREOF AND METHOD FOR PRODUCING SAME
[Technical Field]
[0001]
The present invention relates to a compound of an optically active quaternary
ammonium salt which is useful as a chiral phase transfer catalyst and more specifically,
relates to a novel optically active quaternary ammonium salt, and an intermediate and
production method for producing said compound.
Priority is claimed on Japanese Patent Applications No. 2005-059694, filed
March 3, 2005, and No. 2005-192757, filed June 30, 2005, the contents of which are
incorporated herein by reference.
[Background Art]
[0002]
Many compounds regarding optically active spiro quaternary ammonium salts
have been known to date. Examples thereof include the compound described in Patent
document 1 and represented by the following formula
[0003]

[0004]
and the compound described in Patent document 3, and the documents disclose

2
that these compounds perform extremely effectively as a phase transfer catalyst for
synthesizing optically active a-amino acids regardless of being natural or not. However,
the optically active spiro quaternary ammonium salts described in these documents are
expensive since they are constituted from two kinds of binaphthyl derivatives having
different substituents, and thus they are not necessarily satisfactory for industrial use.
[0005]
Moreover, the compound represented by the following formula is described in
Patent document 2.
[0006]
However, because the compound is optically active only on one side, the reaction time is
long, and thus the compound is not necessarily satisfactory for industrial use.
[0007]
Furthermore, the compound represented by the following formula is described in
Patent document 4. However, since the spiro quaternary ammonium salts described in
these documents are constituted of two kinds of optically active biphenyl derivatives
which have the same substituents, there are limits in catalyst design, and thus the salts are
not necessarily satisfactory for industrial use.
[0008]

3

[0009]
For this reason, the development of an optically active spiro quaternary
ammonium salt which is effective as a phase transfer catalyst for synthesizing optically
active a-amino acids and which is readily produced and is also practical, has been
desired.
[0010]
[Patent document 1] Japanese Laid-Open Patent Application No. 2001-48866
[Patent document 2] Japanese Laid-Open Patent Application No. 2002-326992
[Patent document 3] Japanese Laid-Open Patent Application No. 2003-81976
[Patent document 4] Japanese Laid-Open Patent Application No. 2004-359578
[Disclosure of the Invention]
[Problems to be Solved by the Invention]
[0011]
The present invention is made to solve the aforementioned problems of the prior
art regarding the compounds of optically active quaternary ammonium salts which are
useful as chiral phase transfer catalysts. The object of the present invention is to
provide a compound having excellent effects in synthesizing optically active amino acids
regardless of being natural or not, and a production method capable of producing said
compound to industrial advantage.

4
[Means for Solving the Problem]
[0012]
The present inventors studied intensively in order to solve the above problems
and discovered the following to complete the present invention. That is, optically active
spiro quaternary ammonium salts, which are constituted from two kinds of biphenyl
derivatives having different substituents or from a biphenyl derivative and binaphthyl
derivative, and which can be used as a catalyst having excellent effects in synthesizing
optically active amino acids and which are industrially useful, as well as a method for
readily producing said quaternary ammonium salts.
[0013]
In the present invention, the discovered method for readily producing the spiro
quaternary ammonium salts is based on kinetic resolution. According to said
production method, for example, even when a biphenyl derivative, which is a material
compound, has no optical activity, a compound of an optically active quaternary
ammonium salt having two axial asymmetries can readily be obtained by reacting with
an optically active azepine derivative. During this process, it is also possible to recover
the biphenyl derivative which is not involved in the reaction as an optically active
substance. In addition, when a biphenyl derivative, which is a material compound, has
an optical activity, likewise, a compound of an optically active quaternary ammonium
salt having two axial asymmetries can readily be obtained by reacting with an azepine
derivative which has no optical activity, and it is also possible to recover the azepine
derivative, which is not involved in the reaction, as an optically active substance.
[0014]
Furthermore, another basis constituting the method for readily producing the
spiro quaternary ammonium salts which have been discovered in the present invention is

5
the simple production method of azepines which are important production intermediates
for producing the spiro quaternary ammonium salts. According to the present
production method, by reacting a 2,2'-bis(substituted methyl)biaryl compound, which
has a substituent at the 3,3'-positions, with ammonia, corresponding azepines can readily
be obtained.
[0015]
That is, a first aspect of the present invention relates to an optically active
quaternary ammonium salt compound represented by the formula (1)
[0016]

[0017]
(in the formula, R1 represents a halogen, a C1-8 alkyl which is optionally
substituted and which is linear, branched, or cyclic, a C2-8 alkenyl which is optionally
substituted, a C2-8 alkynyl which is optionally substituted, a C6-14 aryl which is optionally
substituted, a C3-8 heteroaryl which is optionally substituted, a C1-8 alkoxy which is
optionally substituted and which is linear, branched, or cyclic, or a C7-16 aralkyl which is
optionally substituted;
R2 and R21 each independently represents hydrogen, halogen, nitro, a C1-8 alkyl
which is optionally substituted and which is linear, branched, or cyclic, a C2-8 alkenyl
which is optionally substituted, a C2-8 alkynyl which is optionally substituted, a C6-14 aryl

6
which is optionally substituted, a C1-8 alkoxy which is optionally substituted and which is
linear, branched, or cyclic, or a C7-16 aralkyl which is optionally substituted and one of
combinations of R1 and R21, and R2 and R21, may bind to form a C1-6 alkylene which is
optionally substituted, a C1-6 alkylenemonooxy which is optionally substituted, or a C1-6
alkylenedioxy which is optionally substituted;
R3 and R4 each independently represents hydrogen, a C6-14 aryl which is
optionally substituted, a C3-8 heteroaryl which is optionally substituted, or a C7-16 aralkyl
which is optionally substituted, with a proviso that R3 and R4 are not hydrogen at the
same time;
R5 represents hydrogen, halogen, a C1-8 alkyl which is optionally substituted and
which is linear, branched, or cyclic, a C1-8 alkoxy which is optionally substituted and
which is linear, branched, or cyclic, a C2-8 alkenyl which is optionally substituted, or a
C2-8 alkynyl which is optionally substituted;
R6 represents halogen, a C1-8 alkyl which is optionally substituted and which is
linear, branched, or cyclic, a C1-8 alkoxy which is optionally substituted and which is
linear, branched, or cyclic, a C2-8 alkenyl which is optionally substituted, or a C2-8 alkynyl
which is optionally substituted, and R5 and R6 may bond to form an aromatic ring which
is optionally substituted;
ring A and ring B do not have a same substituent at the same time;
symbols * and ** represent an optical activity having an axial chirality; and
X represents an anion).
[0018]
As the quaternary ammonium salt compound represented by the formula (1) the
following compounds are preferable:
a compound in which R2 is hydrogen and R21 is halogen, nitro, a C1-8 alkyl

7
which is optionally substituted and which is linear, branched, or cyclic, a C2-8 alkenyl
which is optionally substituted, a C2-8 alkynyl which is optionally substituted, a C6-14 aryl
which is optionally substituted, a C1-8 alkoxy which is optionally substituted and which is
linear, branched, or cyclic, or a C7-16 aralkyl which is optionally substituted;
a compound in which Rl, R2, and R21 each independently represents a C1-8
alkoxy which is optionally substituted and which is linear, branched, or cyclic;
a compound in which R1 is a C1-8 alkoxy which is optionally substituted and
which is linear, branched, or cyclic, and R and R21 bond to form a C1-6 alkylenedioxy
which is optionally substituted;
a compound in which R1 and R21 each independently represents a C1-8 alkoxy
which is optionally substituted and which is linear, branched, or cyclic, and R2 is
hydrogen;
a compound in which R1 and R21 bond to form a C1-6 alkylenedioxy which is
optionally substituted, and R is hydrogen, fluorine, chlorine, a C1-8 alkyl which is
optionally substituted and which is linear, branched, or cyclic, a C1-8 alkoxy which is
optionally substituted and which is linear, branched, or cyclic, or a C7-16 aralkyl which is
optionally substituted;
a compound in which R1 is fluorine, chlorine, a C1-8 alkyl which is optionally
substituted and which is linear, branched, or cyclic, or a C1-8 alkoxy which is optionally
substituted and which is linear, branched, or cyclic, and R2 and R21 bond to form a C1-6
alkylenedioxy which is optionally substituted;
a compound in which R3 represents a C6-14 aryl (which is optionally substituted
by halogen, a C1-8 alkyl which is optionally substituted by halogen and which is linear,
branched, or cyclic, or a C6-14 aryl), a C3-8 heteroaryl (which is optionally substituted by
halogen, a C1-8 alkyl which is optionally substituted by halogen and which is linear,

8

branched, or cyclic, or a C6-14 aryl), or a C7-16 aralkyl (which is optionally substituted by
halogen, a C1-8 alkyl which is optionally substituted by halogen and which is linear,
branched, or cyclic, or a C6-14 aryl); and R4 is hydrogen;
a compound in which R3 represents hydrogen and R4 is a C6-14 aryl (which is
optionally substituted by halogen, a C1-8 alkyl which is optionally substituted by halogen
and which is linear, branched, or cyclic, or a C6-14 aryl), a C3-8 heteroaryl (which is
optionally substituted by halogen, a C1-8 alkyl which is optionally substituted by halogen
and which is linear, branched, or cyclic, or a C6-14 aryl), or a C7-16 aralkyl (which is
optionally substituted by halogen, a C1-8 alkyl which is optionally substituted by halogen
and which is linear, branched, or cyclic, or a C6-14 aryl); and
a compound in which X" is an anion of halogen, OH-, BF4-, PF6-, HSO4-, an
anion of C1-6 dialkylsulfate which is optionally substituted and which is linear, branched,
or cyclic, an anion of C1-6 alkylsulfonate which is optionally substituted and which is
linear, branched, or cyclic, an anion of C6-14 arylsulfonate which is optionally substituted,
or an anion of C7-16 aralkylsulfonate which is optionally substituted.
[0019]
In addition, a second aspect of the present invention relates to:
(i) an optically active bisbenzyl compound or a racemic bisbenzyl compound represented
by the formula (2)
[0020]

9
[0021]
(in the formula, R1, R21, and R3 are the same as above and Y2 represents a
leaving group) which has axial chirality; and
(ii) a racemic azepine derivative or an optically active azepine derivative represented by
the formula (3)
[0022]

[0023]
(in the formula, R1, R2, R21, and R3 are the same as above).
[0024]
A third aspect of the present invention is a production method of an azepine
derivative characterized in that a biphenyl derivative represented by the formula (4)
[0025]

10

[0026]
(in the formula, Ra represents a C6-14 aryl which is optionally substituted, a C3-8
heteroaryl which is optionally substituted, or a C7-16 aralkyl which is optionally
substituted; Rb represents halogen, nitro, a C1-8 alkyl which is optionally substituted and
which is linear, branched, or cyclic, a C2-8 alkenyl which is optionally substituted, a C2-8
alkynyl which is optionally substituted, a C6-14 aryl which is optionally substituted, a C1-8
alkoxy which is optionally substituted and which is linear, branched, or cyclic, or a C7-16
aralkyl which is optionally substituted, and Rb may bond with each other to form a C1-6
alkylene which is optionally substituted, a C1-6 alkylenemonooxy which is optionally
substituted, a C1-6 alkylenedioxy which is optionally substituted, or an aromatic ring
which is optionally substituted; and m is 0 or represents an integer of 1 to 3 and Rb may
be different substituents to each other when m is 2 or more); and ammonia are reacted to
produce the azepine derivative represented by the following formula (5)
[0027]

[0028]

11
(in the formula, Ra, Rb, and m are the same as above). This azepine derivative
is useful as a production intermediate of the compound represented by the formula (1).
[0029]
A fourth aspect of the present invention is a production method of an optically
active quaternary ammonium salt compound characterized in that,
(i) an optically active bisbenzyl derivative represented by the formula (6)
[0030]

[0031]
(in the formula, Rc represents halogen, a C1-8 alkyl which is optionally
substituted and which is linear, branched, or cyclic, a C2-8 alkenyl which is optionally
substituted, a C2-8 alkynyl which is optionally substituted, a C6-14 aryl which is optionally
substituted, a C3-8 heteroaryl which is optionally substituted, a C1-8 alkoxy which is
optionally substituted and which is linear, branched, or cyclic, or a C7-16 aralkyl which is
optionally substituted; Rd and Re each independently represents halogen, nitro, a C1-8
alkyl which is optionally substituted and which is linear, branched, or cyclic, a C2-8
alkenyl which is optionally substituted, a C2-8 alkynyl which is optionally substituted, a
C6-14 aryl which is optionally substituted, a C1-8 alkoxy which is optionally substituted
and which is linear, branched, or cyclic, a C3-8 heteroaryl which is optionally substituted,
or a C7-16 aralkyl which is optionally substituted, and Rd may bond with each other to
form a C1-6 alkylene which is optionally substituted, a C1-6 alkylenemonooxy which is

12
optionally substituted, or a C1-6 alkylenedioxy which is optionally substituted, and n is 0
or represents an integer of 1 to 2 and Rd may be different substituents to each other when
n is 2; and Y2 is the same as above);
and racemic azepine derivative represented by the formula (7)
[0032]

[0033]
(in the formula, Rf represents halogen, a C1-8 alkyl which is optionally
substituted and which is linear, branched, or cyclic, a C1-8 alkoxy which is optionally
substituted and which is linear, branched, or cyclic, a C2-8 alkenyl which is optionally
substituted, a C2-8 alkynyl which is optionally substituted, a C6-14 aryl which is optionally
substituted, a C3-8 heteroaryl which is optionally substituted, or a C7-16 aralkyl which is
optionally substituted, and k is 0 or represents an integer of 1 to 4 and Rf may be
different substituents to each other when k is 2 or more and Rf may bond with each other
to form an aromatic ring which is optionally substituted); are reacted to produce the
optically active quaternary ammonium salt compound represented by the formula (8)
[0034]

13
[0035]
(in the formula, Rc, Rd, Re, Rf, n, k, and symbols * and ** are the same as
above); and
(ii) the production method of an optically active quaternary ammonium salt compound
represented by the formula (8) characterized in that the racemic bisbenzyl derivative
represented by the formula (6) and optically active azepine derivative represented by the
formula (7) are reacted.
[0036]
A fifth aspect of the present invention is a production method of an optically
active quaternary ammonium salt compound characterized in that an optically active
azepine derivative represented by the formula (9)
[0037]

[0038]
(in the formula, Rc, Rd, and n are the same as above); and racemic bisbenzyl

14
derivative represented by the following formula (10)
[0039]

[0040]
(Rf, k, and Y2 are the same as above); are reacted to produce the optically active
quaternary ammonium salt compound represented by the following formula (8)
[0041]

[0042]
(in the formula, Rc, Rd, Re, Rf, n, k, and symbols * and ** are the same as
above); and
(ii) a production method of the optically active quaternary ammonium salt compound
represented by the formula (8) characterized in that the racemic bisbenzyl derivative
represented by the formula (9) and optically active azepine derivative represented by the
formula (10) are reacted.
[Effects of the Invention]
[0043]

15
The optically active quaternary ammonium salt compound of the present
invention can be produced in an industrially advantageous method and has an excellent
catalytic effect on the synthesis of optically active amino acids.
In addition, according to the production method of the present invention, the
compounds of optically active quaternary ammonium salts can be industrially
advantageously produced due to kinetic resolution.
[Best Modes for Carrying Out the Invention]
[0044]
The present invention will be described in detail below.
Examples of halogens in the present specification include each atom of fluorine,
chlorine, bromine, and iodine.
[0045]
Examples of the C1-8 alkyl, which is linear, branched, or cyclic, of the C1-8 alkyl
which is linear, branched, or cyclic, and which is optionally substituted, include methyl,
ethyl, propyl, isopropyl, butyl, isobutyl, sec-butyl, tert-butyl, pentyl, isopentyl, neopentyl,
hexyl, isohexyl, heptyl, isoheptyl, octyl, isooctyl, cyclopropyl, cyclobutyl,
2-methylcyclopropyl, cyclopropylmethyl, cyclopentyl, and cyclohexyl.
[0046]
Examples of the C2-8 alkenyl of the C2-8 alkenyl, which is optionally substituted,
include vinyl, 1-propenyl, 2-propenyl, isopropenyl, 1-butenyl, 2-butenyl, 3-butenyl,
1-pentenyl, 2-pentenyl, 3-pentenyl, 4-pentenyl, l-methyl-2-butenyl, l-methyl-3-butenyl,
l,l-dimethyl-2-propenyl, 3-methyl-2-butenyl, 1-hexenyl, 2-hexenyl, 3-hexenyl,
4-hexenyl, 5-hexenyl, 2-methyl- 1-pentenyl, 3-methyl-1-pentenyl, 4-methyl-1-pentenyl,
2-methyl-2-pentenyl, 3-methyl-2-pentenyl, 2-ethyl- 1-butenyl, 3,3-dimethyl-1-butenyl,
1-heptenyl, 2-heptenyl, 3-heptenyl, 1-octenyl, 2-octenyl, 3-octenyl, and 4-octenyl.

16
[0047]
Examples of the C2-8 alkynyl of the C2-8 alkynyl, which is optionally substituted,
include ethynyl, 1-propynyl, 2-propynyl, 1-butynyl, 2-butynyl, 3-butynyl, 1-pentynyl,
2-pentynyl, 3-pentynyl, 4-pentynyl, 4-methyl-l-pentenyl, 1-hexynyl, and 1-octynyl.
[0048]
Examples of the C6-14 aryl of the C6-14 aryl, which is optionally substituted,
include phenyl, 1-naphthyl, 2-naphthyl, 1-anthryl, 2-anthryl, 9-anthryl, 1-phenanthryl,
2-phenanthryl, 3-phenanthryl, 4-phenanthryl, 9-phenanthryl, and 10-phenanthryl.
[0049]
The C3-8 heteroaryl of the C3-8 heteroaryl, which is optionally substituted, is
monocyclic, polycyclic, or a condensed ring which contains 1 to 4 atoms of N, O, and S
and these atoms may be the same or different. Specific examples of the C3-8 heteroaryl
include 2-pyridyl, 3-pyridyl, 4-pyridyl, 2-quinonyl, 3-quinonyl, 4-quinonyl, 5-quinonyl,
6-quinonyl, 7-quinonyl, 8-quinonyl, 2-indolyl, 3-indolyl, 4-indolyl, 5-indolyl, 6-indolyl,
7-indolyl, 2-furyl, 3-furyl, 2-thienyl, 3-thienyl, 2-pyrrolidyl, 3-pyrrolidyl, 2-imidazolyl,
4-imidazolyl, 5-imidazolyl, 2-oxazolyl, 4-oxazolyl, 5-oxazolyl, 2-thiazolyl, 4-thiazolyl,
and 5-thiazolyl.
[0050]
The alkyl moiety of the C1-8 alkoxy, which is linear, branched, or cyclic, of the
C1-8 alkoxy which is linear, branched, or cyclic, and which is optionally substituted, is the
same as the aforementioned alkyl. Specific examples of the C1-8 alkoxy include
methoxy, ethoxy, propoxy, isopropoxy, butoxy, isobutoxy, sec-butoxy, tert-butoxy,
pentyloxy, isopentyloxy, hexyloxy, heptyloxy, octyloxy, cyclopropoxy, cyclobutoxy,
2-methylcyclopropoxy, cyclopropylmethoxy, cyclopentyloxy, and cyclohexyloxy.
[0051]

17
Examples of the C7-16 aralkyl of the C7-16 aralkyl, which is optionally substituted,
include benzyl, 1-phenylethyl, 2-phenylethyl, 1 -methyl- 1-phenylethyl, 1-naphthylmethyl,
and 2-naphthylmethyl.
[0052]
Examples of X- include anions such as anions of halogens like fluorine, chlorine,
bromine, and iodine; OH-; BF4-; PF6-; SCN-; HSO4-; anions of C1-6 dialkyl sulfate which
is optionally substituted and which is linear, branched, or cyclic; anions of C1-6 alkyl
sulfonate which is optionally substituted and which is linear, branched, or cyclic; anions
of C6-14 aryl sulfonate which is optionally substituted; and anions of C7-16 aralkyl
sulfonate which is optionally substituted.
[0053]
The alkyl moieties of C1-6 dialkyl sulfate which is optionally substituted and
which is linear, branched, or cyclic and of C1-6 alkyl sulfonate which is optionally
substituted and which is linear, branched, or cyclic are the same as the aforementioned
alkyl. Specific examples of the C1-6 dialkyl sulfate and C1-6 alkyl sulfonate include
dimethyl sulfate, methyl sulfonate, ethyl sulfonate, propyl sulfonate, and butyl sulfonate.
[0054]
The aryl moiety of C6-14 aryl sulfonate group which is optionally substituted is
the same as the aforementioned aryl. Specific examples of the C6-14 aryl sulfonate
include phenylsulfonate, p-toluenesulfonate, and naphthylsulfonate.
[0055]
The aralkyl moiety of C7-16 aralkyl sulfonate group which is optionally
substituted is the same as the aforementioned aralkyl. Specific examples of the C7-16
aralkyl sulfonate include benzylsulfonate and phenethylsulfonate.
[0056]

18
Examples of the aromatic ring which is formed by the bonding of R5 and R and
which is optionally substituted include a benzene ring and naphthalene ring.
[0057]
The C1-6 alkylene of the C1-6 alkylene, which is optionally substituted, is
represented by the formula -(CH2)n- (in the formula, n represents an integer of 1 to 6).
Specific examples of the compounds, in which R1 and R21 or R2 and R21 are bonded,
include the compounds having the following structures.
[0058]

(In the formula, G represents a substituent.)
[0059]
The C1-6 alkylenemonooxy of the C1-6 alkylenemonooxy, which is optionally
substituted, is represented by the formula -O(CH2)n- or -(CH2)nO- (in the formula, n
represents an integer of 1 to 6). Specific examples of the compounds, in which R and

19
R21 or R2 and R21 are bonded, include the compounds having the following structures.
[0060]

(In the formula, G represents a substituent.)
[0061]
The C1-6 alkylenedioxy of the C1-6 alkylenedioxy, which is optionally substituted,
is represented by the formula -O(CH2)nO- (in the formula, n represents an integer of 1 to
6). Specific examples of the compounds, in which R1 and R21 or R2 and R21 are bonded,
include the compounds having the following structures.

20
[0062]

(In the formula, G represents a substituent.)
[0063]
Additionally, the leaving group represents halogen, a C1-8 alkylsulfonyloxy
which is optionally substituted, C6-14 arylsulfonyloxy which is optionally substituted,
C7-16 aralkylsulfonyloxy which is optionally substituted, or the like.
The alkyl moiety, aryl moiety, and aralkyl moiety in the C1-8 alkylsulfonyloxy
which is optionally substituted and which is linear, branched, or cyclic, C6-14
arylsulfonyloxy which is optionally substituted, and C7-16 aralkylsulfonyloxy which is
optionally substituted, are the same alkyl, aryl, and aralkyl as defined above, respectively.
[0064]
The group which is optionally substituted (i.e., C1-8 alkyl, C2-8 alkenyl, C2-8
alkynyl, C6-14 aryl, C3-8 heteroaryl, C1-8 alkoxy, C7-16 aralkyl, aromatic rings formed by
the bonding of R5 and R6, C1-6 alkylene, C1-6 alkylenemonooxy, C1-6 alkylenedioxy, C1-6
dialkyl sulfate group, C1-6 alkylsulfonate group, C6-14 arylsulfonate group, C7-16
aralkylsulfonate group, C1-8 alkylsulfonyloxy group, C6-14 arylsulfonyloxy group, and
C7-16 aralkylsulfonyloxy group) and substituent G are the substituent which may be
substituted at 1 to 6 positions by the same or different substituents, and examples thereof

21
include:
halogens such as fluorine, chlorine, bromine, and iodine;
C1-8 alkyl which is linear, branched, or cyclic, such as methyl, ethyl, propyl,
isopropyl, butyl, isobutyl, sec-butyl, tert-butyl, pentyl, isopentyl, neopentyl, hexyl,
isohexyl, heptyl, isoheptyl, octyl, isooctyl, cyclopropyl, cyclobutyl, 2-methylcyclopropyl,
cyclopropylmethyl, and cyclopentyl;
C1-5 perfluoroalkyl which is linear, branched, or cyclic, such as trifluoromethyl,
tetrafluoroethyl, and heptafluoroisopropyl;
C6-14 aryl such as phenyl, 1-naphthyl, 2-naphthyl, 1-anthryl, 2-anthryl, 9-anthryl,
1-phenanthryl, and 2-phenanthryl;
C1-8 alkoxy which is linear, branched, or cyclic, such as methoxy, ethoxy,
propoxy, isopropoxy, butoxy, isobutoxy, sec-butoxy, tert-butoxy, pentyloxy, isopentyloxy,
hexyloxy, heptyloxy, octyloxy, cyclopropoxy, cyclobutoxy, 2-methylcyclopropoxy,
cyclopropylmethoxy, and cyclopentyloxy;
C7-16 aralkyl such as benzyl, 2-phenylethyl, 1-naphthylmethyl, and
2-naphthylmethyl; and
C3-8 heteroaryl, which is monocyclic, polycyclic, or a condensed ring which
contains 1 to 4 atoms of N, O, and S and these atoms may be the same or different, such
as 2-pyridyl, 3-pyridyl, 4-pyridyl, 2-quinonyl, 3-quinonyl, 4-quinonyl, 5-quinonyl,
6-quinonyl, 7-quinonyl, 8-quinonyl, 2-indolyl, 3-indolyl, 4-indolyl, 5-indolyl, 6-indolyl,
7-indolyl, 2-furyl, 3-furyl, 2-thienyl, 3-thienyl, 2-pyrrolidyl, 3-pyrrolidyl, 2-imidazolyl,
4-imidazolyl, 5-imidazolyl, 2-oxazolyl, 4-oxazolyl, 5-oxazolyl, 2-thiazolyl, 4-thiazolyl,
and 5-thiazolyl.
[0065]
Examples of the racemic bisbenzyl compound having an axial chirality and

22
represented by the aforementioned formula (2), which is useful as a production
intermediate of the compound represented by the aforementioned formula (1), include the
compound represented by the following formula (2a), and examples of the optically
active bisbenzyl compound include the compound represented by the following formula
(2b).
[0066]

[0067]
In the formula,
R1 is the same as above;
R2a and R21a each independently representss halogen, a C1-8 alkyl which is
optionally substituted and which is linear, branched, or cyclic, a C2-8 alkenyl which is
optionally substituted, a C2-8 alkynyl which is optionally substituted, a C6-14 aryl which is
optionally substituted, a C3-8 heteroaryl which is optionally substituted, a C1-8 alkoxy
which is optionally substituted and which is linear, branched, or cyclic, or a C7-16 aralkyl
which is optionally substituted;
R31 represents a C6-14 aryl which is optionally substituted, a C3-8 heteroaryl
which is optionally substituted, or a C7-16 aralkyl which is optionally substituted; and
Y1 represents a leaving group and preferably represents halogen, a C1-8
alkylsulfonyloxy which is optionally substituted, a C6-14 arylsulfonyloxy which is
optionally substituted, or a C7-16 aralkylsulfonyloxy which is optionally substituted.

23
[0068]

[0069]
In the formula, R1, R2a, R21a, R31, Y1, and the symbol * are the same as above.
[0070]
Examples of the racemic azepine derivative represented by the aforementioned
formula (3), which is useful as a production intermediate of the compound represented by
the aforementioned formula (1), include the compound represented by the following
formula (3a), and examples of the optically active azepine derivative include the
compound represented by the following formula (3b).
[0071]

[0072]
In the formula, R1, R2, R21, and R3 are the same as above.
[0073]

24

[0074]
In the formula, R1, R2, R21, R3, and the symbol * are the same as above.
[0075]
Since the optically active quaternary ammonium salt compound represented by
the aforementioned formula (1) and the following formula (1') (one of the axially
asymmetric compounds, which are enantiomorphic, is in excess compared to the other)
are constituted by an optically active and axially asymmetric biphenyl and optically
active and axially asymmetric binaphthyl, or by 2 kinds of optically active and axially
asymmetric biphenyl groups, 4 kinds of isomers of said compound exist; i.e., S,S-form,
R,R-form, S,R-form, and R,S-form following the conventional symbols showing an
axially asymmetric optical activity, and all these isomers are included in the present
invention.
[0076]
The quaternary ammonium salt compound (1') of the present invention can be
produced, for example, by any one the following methods.
(i) Reacting a racemic bisbenzyl compound (2a') and optically active azepine derivative
(5b)
[0077]

25

[0078]
(ii) Reacting an optically active bisbenzyl compound (2b') and racemic azepine
derivative (5 a)
(2b'); optically active substance + (5a); racemic substance →(1') + (5b); optically active
substance
(iii) Reacting a racemic azepine derivative (3a) and optically active biphenyl derivative
(4b)
[0079]

[0080]
(iv) Reacting an optically active azepine derivative (3 b) and racemic biphenyl derivative
(4a)
(3b); optically active substance + (4a); racemic substance →(1') + (4b); optically active
substance
[0081]

26
In all the production methods (i) to (iv) of the present invention, when optically
active materials are reacted with each other, two asymmetric axes of the obtained
quaternary ammonium salt compound are both optically active. However, even when
one material, which is optically active, is reacted with another material, which is racemic,
the former preferentially reacts with one enantiomer of the latter due to kinetic resolution
and two asymmetric axes of the obtained quaternary ammonium salt compound are
produced so that they are both optically active. For this reason, the enantiomer of the
latter material which is not involved in the production is recovered as an optically active
substance. Accordingly, in the production method of the present invention, even when
one material is not optically active, the quaternary ammonium salt compound having two
asymmetric axes which are both optically active can readily be obtained, and thus it is an
advantageous method industrially.
[0082]
1 to 10 times of the racemic substance in the present invention can be used
relative to the optically active substance in terms of moles, and particularly, the use of 1.5
to 3 times in terms of moles is preferable industrially.
[0083]
The present reaction can be carried out under the presence of a solvent or
without a solvent. Usable solvents are not particularly limited as long as they are
solvents inert to the reaction and examples thereof include hydrocarbon solvents such as
pentane, hexane, heptane, benzene, toluene, and xylene; halogen solvents such as
dichloromethane, 1,2-dichloroethane, chloroform, and carbon tetrachloride; alcohols
such as methanol and ethanol; nitrile solvents such as acetonitrile and propionenitrile;
ether solvents such as diethylether, dioxane, and tetrahydrofuran; non-protonic polar
solvents such as N,N-dimethylformamide and dimethylsulfoxide; water; and mixed

27
solvent systems in which two or more of these solvents are mixed.
[0084]
Examples of the bases include inorganic bases such as sodium hydroxide,
potassium hydroxide, sodium carbonate, potassium carbonate, sodium bicarbonate, and
potassium bicarbonate; and organic bases such as pyridine, triethylamine,
N,N-dimethylaniline, 4-dimethylaminopyridine, N-methylpyrrolidine,
N-methylmorpholine, and l,8-diazabicyclo(5.4.0)undeca-7-ene. The amount of base
used is normally 1 to 10 times and preferably 1 to 3 times of that of an optically active
binaphthyl derivative or optically active biphenyl derivative in terms of moles.
[0085]
The temperature range of the present reaction is -78°C to 200°C and preferably
-20°C to 100°C. The range of reaction time is 30 minutes to 100 hours, although this
depends on the amount of reaction agents, temperature, or the like.
[0086]
Bisbenzyl compounds (2a') and (2b') and biphenyl derivatives (4a) and (4b),
which are production intermediates, can be produced from the corresponding materials
by following the method described in Japanese Laid-Open Patent Application No.
2003-327566, Japanese Laid-Open Patent Application No. 2004-359578, or the like.
[0087]
On the other hand, azepine derivatives (3a), (3b), (5a), and (5b), which are
production intermediates, can be produced by following the description below.
[0088]
That is, 3,3'-dihalogeno-2,2'-dianilines (13), which are obtained by
halogenating the bisanilines (12) produced from a known substance based on Japanese
Laid-Open Patent Application No. 2004-359578, is reacted under the condition of Suzuki

28
coupling described in Japanese Laid-Open Patent Application No. 2001-48866 or the like
(refer to J. Organomet. Chem., 1999, 576, 147) to obtain 3,3-disubstituted-2,2'-dianilines
(14).
[0089]

(In the formula, X1 represents halogen and R1, R2, R21, and R3 are the same as above.)
[0090]
Examples of the halogenating reagents include N-bromosuccinimide (NBS),
N-chlorosuccinimide (NCS), N-iodosuccinimide (NIS), bromine, chlorine, and iodine.
Usable solvents are not particularly limited as long as they are solvents inert to the
reaction and examples thereof include hydrocarbon solvents such as pentane, hexane,
heptane, benzene, toluene, and xylene; halogen solvents such as dichloromethane,
1,2-dichloroethane, chloroform, and carbon tetrachloride; alcohols such as methanol and
ethanol; and mixed solvent systems in which two or more of these solvents are mixed.
The reaction can be carried out at an appropriate temperature from room temperature to
the boiling point of the solvent.
[0091]
Subsequently, a 3,3'-disubstituted-2,2'-dihalogenated substance (15) is prepared
by converting the amino group in 3,3-disubstituted-2,2'-dianilines (14) to halogen using
a nitrite, and by treating this substance (15) with a carbon monoxide-Pd catalyst, a
3,3'-disubstituted-2,2'-diester substance (16) is obtained.

29
[0092]
The conversion of amino to halogen due to a nitrite can be carried out based on
the method described in Japanese Laid-Open Patent Application No. 2004-359578, and
the conversion of the 3,3'-disubstituted-2,2'-dihalogenated substance (15) to the
3,3'-disubstituted-2,2'-diester substance (16) can be carried out based on the method
described in Synlett (1998) 2,183.
[0093]

(In the formula, X represents halogen and R , R2, R , and R are the same as above.)
[0094]
Moreover, by carrying out halogenation/Suzuki coupling reaction due to the
method according to the above using a known compound or a biphenyl-2,2'-diester
substance (14'), which can be derived by known methods, 3,3'-disubstituted-2,2'-diester
substance (16) can also be obtained via 3,3'-dihalogenobiphenyl-2,2'-diester substance
(15').
[0095]


30
(In the formula, X1, R1, R2, R21, and R3 are the same as above.)
[0096]
3,3'-disubstituted-2,2'-bishydroxymethyl substance (17) can be obtained by
reducing 3,3'-disubstituted-2,2'-diester substance (16) due to the method described in
Jikken Kagaku Koza (Courses in Experimental Chemistry, 4th Ed., edited by The
Chemical Society of Japan and published by Maruzen Co., Ltd., vol. 20, pp.10-141).
[0097]

(In the formula, R1, R2, R21, and R3 are the same as above.)
[0098]
Subsequently, the hydroxyl in 3,3'-disubstituted-2,2'-bishydroxymethyl
substance (17) is converted to a leaving group such as halogen based on the method
described in Jikken Kagaku Koza (Courses in Experimental Chemistry, 4th Ed., edited by
The Chemical Society of Japan and published by Maruzen Co., Ltd., vol. 19, pp.43 8-445)
to obtain a bisbenzyl compound (2a').
[0099]

31

[0100]
(In the formula, Y2 represents a leaving group and R1, R2, R21, and R3 are the
same as above.)
Examples of the abovementioned leaving group Y2 include halogen,
p-toluenesulfonyloxy, and methanesulfonyloxy.
[0101]
On the other hand, 3,3'-disubstituted-2,2'-dihalogen substance (15) can be
converted to 3,3'-disubstituted-2,2'-dimethyl substance (17') according to the method
described in a document (J. Mol. Catal., 1990, 60, 343), and the bisbenzyl compound
(2a') can also be obtained by subjecting the substance (17') to a general halogenation
condition.
[0102]

32

(In the formula, R1, R2, R21, R3, and Y2 are the same as above.)
[0103]
Furthermore, 6,6'-dialkoxy-3,3'-disubstituted-2,2'-dimethyl substance (17") is
obtained, for example, by carrying out halogenation/Suzuki coupling reaction according
to the aforementioned method using 6,6'-dialkoxy-2,2'-dimethylbiphenyl derivative
(14"), which can be synthesized based on a document (J. Chem. Soc, 1950, 711) or the
like. By the same treatment carried out on the substance (17') to prepare the substance
(2a'), the substance (17") can be derived to a corresponding bisbenzyl compound (2a").
[0104]

[0105]
(In the formula, Ralc represents alkoxy and R2, R3, R21, and Y2 are the same as
above.)

33
[0106]
In addition, it is possible to obtain biphenyl derivatives (4a) from diols (18)
according to a document (J. Am. Chem. Soc, 121,6519 (1999)).
[0107]

[0108]
(In the formula, R4, R5, R6, and Y2 are the same as above.)
[0109]
The synthesis method of the aforementioned bisbenzyl compound (2a') and
biphenyl derivatives (4a) can be applied to the corresponding optically-active compounds
(2b') and (4b).
[0110]
By reacting these biphenyls with ammonia, an azepine derivative (3a), (3b), (5a),
or (5b) can be produced.
[0111]

34

[0112]
(In the formula, R1, R2, R21, R3, R4, R5, R6, X, and X3 are the same as above and
the symbols (*) and (**) represents optical activity when the compound is labeled with
the alphabet "b".)
[0113]
The present reaction can be carried out by reacting the respective solvent
solutions of biphenyls and ammonia, or by reacting one with the other's solvent solution
directly.

35
Although the solvent used is not particularly limited as long as it does not react
with biphenyls and ammonia, examples thereof include hydrocarbon solvents such as
pentane, hexane, heptane, benzene, toluene, and xylene; halogen solvents such as
dichloromethane, 1,2-dichloroethane, chloroform, and carbon tetrachloride; alcohols
such as methanol and ethanol; nitrile solvents such as acetonitrile and propionenitrile;
ether solvents such as diethylether, dioxane, and tetrahydrofuran; non-protonic polar
solvents such as N,N-dimethylformamide and dimethylsulfoxide; water; and mixed
solvent systems in which two or more of these solvents are mixed. In addition, the
solvent for dissolving ammonia is not particularly limited as long as it does not react with
ammonia. Examples thereof include hydrocarbon solvents such as pentane, hexane,
heptane, benzene, toluene, and xylene; halogen solvents such as dichloromethane,
1,2-dichloroethane, chloroform, and carbon tetrachloride; alcohols such as methanol and
ethanol; nitrile solvents such as acetonitrile and propionenitrile; ether solvents such as
diethylether, dioxane, and tetrahydrofuran; non-protonic polar solvents such as
N,N-dimethylformamide and dimethylsulfoxide; water; and mixed solvent systems in
which two or more of these solvents are mixed.
[0114]
Although the method is not particularly limited, the reaction can be carried out,
for example, by adding ammonia, in either gaseous form or liquid form, to the solution of
biphenyls directly, or by adding the aforementioned solvent solution of ammonia
dropwise to the solution of biphenyls.
Although the mixing ratio of a solvent and biphenyls is not particularly limited,
it can appropriately be set from 1: 1 to 100: 1 (volume: weight). Likewise, ammonia
can also be used in an arbitrary concentration.
The mole ratio of biphenyls and ammonia is from 1: 0.2 to 1: 10 and preferably

36
from l: 1 to 1:5.
Reaction temperature is -70°C to the boiling point of solvents and preferably
-20°C to 40°C.
[0115]
After completing the reaction and the distillation process to remove unreacted
ammonia, azepine derivatives can be separated/purified by applying known conventional
methods such as extraction, washing, distillation, column chromatography, drying, and
recrystallization.
[0116]
The production of an optically active quaternary ammonium salt compound (1)
can be carried out by following the condition of a general N-benzylation reaction as
shown below.
(a) Reacting an optically active bisbenzyl compound (2b') with an optically active
azepine derivative (5b); or
(b) Reacting an optically active biphenyl compound (4b) with an optically active azepine
derivative (3b)
[0117]
Additionally, the production of an optically active quaternary ammonium salt
compound (1) can also be carried out by the kinetic resolution method. In other words,
it can be performed by reacting a racemic substance with an optically active substance as
shown below.
(i) Reacting a racemic bisbenzyl compound (2a') with an optically active azepine
derivative (5b);
(ii) Reacting an optically active bisbenzyl compound (2b') with a racemic azepine
derivative (5a);

37
(iii) Reacting a racemic azepine derivative (3 a) with an optically active biphenyl
derivative (4b); or
(iv) Reacting an optically active azepine derivative (3b) with a racemic biphenyl
derivative (4a)
[0118]
The reaction between 2 kinds of the aforementioned substances can readily be
carried out in an appropriate solvent under the presence of a base.
[0119]
Solvents can be used regardless of their type as long as they are not involved in
the reaction. Examples thereof include hydrocarbon solvents such as pentane, hexane,
heptane, benzene, toluene, and xylene; halogen solvents such as dichloromethane,
1,2-dichloroethane, chloroform, and carbon tetrachloride; alcohols such as methanol and
ethanol; nitrile solvents such as acetonitrile and propionenitrile; ether solvents such as
diethylether, dioxane, and tetrahydrofuran; non-protonic polar solvents such as
N,N-dimethylformamide and dimethylsulfoxide; and mixed solvent systems in which
two or more of these solvents are mixed. However, since the present reaction can be
carried out under the phase-transfer reaction conditions, solvent systems, in which a
water-insoluble solvent among the aforementioned solvents and water are combined, can
also be used.
[0120]
Although general inorganic bases can be used as the base, which may be used,
more preferable examples thereof include sodium hydroxide, potassium hydroxide,
sodium carbonate, and potassium carbonate.
[0121]
Reaction can be performed in a solvent or in a solvent system while stirring

38
under the presence of a base, and in a temperature range from the solidifying point to the
boiling point of the solvent or the solvent system. Reaction temperature is preferably
-20°C to 80°C. Although reaction time can be adjusted appropriately depending on the
reaction temperature, reactions can be completed in 30 minutes to 12 hours.
[0122]
The volume of the abovementioned reaction solvent is 1 to 100 times larger and
more preferably 5 to 50 times larger in terms of volume (ml)/ weight (g) ratio with
respect to the total weight of the 2 substances.
[0123]
Although the charged mole ratio of the aforementioned 2 substances is
preferably 1: 1 when the condition is for a general N-benzylation reaction, more
favorable results can be obtained by increasing the amount of one substance, which is
more readily available than the other. When using the kinetic resolution method, the
ratio of an optically active substance and racemic substance is preferably 1: 2 to 1: 5 and
more preferably 1: 2 to 1: 3.
[0124]
The amount of base used is preferably 1 to 6 equivalent and more preferably 1 to
3 equivalent of the leaving group Y2, which is present in the reaction system, when the
condition is for a general N-benzylation reaction. When using the kinetic resolution
method, the amount of base used is preferably 1 to 6 equivalent and more preferably 1 to
3 equivalent of the leaving group Y2, which is present in the reaction system, if an
azepine derivative is an optically active substance, and the amount of base used is
preferably 0 to 4 equivalent and more preferably 0 to 1 equivalent of the leaving group
Y2, which is present in the reaction system, if the azepine derivative is a racemic
substance.

39
[0125]
The compound (1) which is produced as such can provide a reaction product
having a high optical purity when used as a phase transfer catalyst in the asymmetric
alkylation of an a-amino acid derivative.
[0126]
Although the present invention will be described in more detail below using
Examples and Reference Examples, the technical scope of the present invention is not
limited to these Examples.
Example 1
[0127]
Production of
2',2"-bis(bromomethyl)-3,4,5,3'",4'",5'"-hexafluoro-4',5',4",5"-tetramethyl-(l,l';3',3'
';l",l'")quaterphenyl(22)
[0128]

[0129]
After dissolving 156 mg (0.27 mmol) of a compound (20) in 5 ml of THF and
cooling the resultant down to 0°C, 31 mg (0.81 mmol) of L1AIH4 was added thereto.
After increasing the temperature of the mixture slowly to room temperature, the mixture

40
was further stirred for 5 hours. Thereafter, the reaction was stopped by pouring the
reaction solution into ice-cold water, and an alcoholic substance (21) was obtained by
carrying out further procedures of extraction/drying/concentration. Without subjecting
to further purification procedures, the alcoholic substance (21) was dissolved in 5 ml of
CH2Cl2, and 0.26 ml (0.6 mmol) of PBr3 was added dropwise to the resulting solution at
0°C. After stirring for 2 hours at room temperature, the reaction solution was poured
into ice-cold water to stop the reaction. The reaction solution was then further extracted
using methylene chloride and the resultant was dried/concentrated and thereafter purified
by column chromatography (ethyl acetate: hexane = 1: 10) to obtain 137 mg (0.21 mmol)
of a compound (22) (yield was 77%).
1H NMR (300MHZ, CDCl3), δ7.15 (2H, d, J=6.6Hz, ArH), 7.12 (2H, d, J=6.6Hz, ArH),
7.09 (2H, s, ArH), 4.03 (4H, d, J=2.4Hz, ArCH2), 2.37 (6H, s, ArCH3), 1.97 (6H, s,
ArCH3)
Example 2
[0130]
Production of
1,2,10,1 l-tetramethyl-4,8-bis(3,4,5-trifluorophenyl)-6,7-dihydro-5H-dibenzo(c,e)azepine
[0131]

[0132]

41
65 mg (0.1 mmol) of the compound (22) and 0.2 ml of 25% ammonia water
were stirred in an acetonitrile solvent at room temperature for 24 hours. After the
completion of the reaction, the resultant was extracted/dried/concentrated, and thereafter
purified by column chromatography (methanol: methylene chloride = 1: 10) to obtain 51
mg (0.1 mmol) of a compound (23) (yield was 100%).
1HNMR (300MHZ, CD3OD), δ7.31 (2H, s, ArH), 7.24 (2H, d, J=6.6Hz, ArH), 7.21 (2H,
d, J=6.6Hz, ArH), 4.14 (2H, d, J=13.8Hz, ArCH2), 3.46 (2H, d, J=13.8Hz, ArCH2), 2.43
(6H, s, ArCH3), 2.09 (6H, s, ArCH3)
Example 3
[0133]
Production of optically active quaternary ammonium salt compound (26)
(homo)
[0134]

[0135]
Under the presence of 140 mg of potassium carbonate, 56 mg of a chiral
secondary amine (24) and 80 mg of racemic dibromomethylbiphenyl (25), which was 2.1
equivalent of said amine, were stirred in an acetonitrile solvent at room temperature for
12 hours. After the completion of the reaction, the resultant was purified by
extraction/column chromatography (methylene chloride: methanol = 10: 1) to obtain 74
mg of an optically pure compound (S, S)-(26) (yield was 85%).

42
[a]D22=+25.6°(cl.0,CHCl3)
lH NMR (300MHz, CDC13), δ8.21 (2H, s, ArH), 8.08 (2H, d, J=8.4Hz, ArH), 7.205-7.60
(8H, m, ArH), 7.09 (2H, d, J=8.7Hz, ArH), 6.71 (2H, d, J=7.8Hz, ArH), 6.02 (2H, d,
J=7.8Hz, ArH), 4.71 (2H, d, J=13.8Hz, ArCH2), 4.50 (2H, d, J=14.1Hz, ArCH2), 4.04
(2H, d, J=13.5Hz, ArCH2), 3.49 (2H, d, J=13.2Hz, ArCH2), 2.30 (6H, s, ArCH3), 1.88
(6H, s,ArCH3)
Example 4
[0136]
Production of optically active quaternary ammonium salt compound (29)
(homo)
[0137]

[0138]
Under the presence of 140 mg of potassium carbonate, 56 mg of a chiral
secondary amine (27) and 80 mg of racemic dibromomethylbiphenyl (28), which was 2.1
equivalent of said amine, were stirred in an acetonitrile solvent at room temperature for
12 hours as in Example 1. After the completion of the reaction, the resultant was
purified by extraction/column chromatography (methylene chloride: methanol = 10: 1) to
obtain 82 mg of an optically pure compound (R, R)-(29) (yield was 94%).
[a]D23=-120.2°(cl.0,CHCl3)

43
1H NMR (300MHZ, CDCl3), δ7.92 (2H, d, J=8.4Hz, ArH), 7.20-7.57 (12H, m, ArH), 7.11
(2H, d, J=8.4Hz, ArH), 6.32 (2H, d, J=8.7Hz, ArH), 4.55 (2H, d, J=13.8Hz, ArCH2), 4.47
(4H, d, J=14.1Hz, ArCH2), 4.18 (2H, d, J=14.1Hz, ArCH2), 3.61 (2H, d, J=12.9Hz,
ArCH2), 2.45 (6H, s, ArCH3), 2.05 (6H, s, ArCH3)
Example 5
[0139]
Production of optically active quaternary ammonium salt compound (45)
[0140]

[0141]
1.97 g (4.37 mmol) of a compound (40) and 2.33 g (13.1 mmol) of
N-bromosuccinimide were reacted in 20 ml of a chloroform solvent at room temperature
for 12 hours. After the completion of the reaction, the resultant was extracted with
ethyl acetate, dried/concentrated, and thereafter purified by column chromatography
(ethyl acetate: hexane = 1: 3) to obtain a compound (41) (yield was 94%).
1H NMR (300MHz, CDC13), δ3.96 (6H, s, ArCO2CH3), 3.94 (6H, s, ArOCH3), 3.79 (6H,
s, ArOCH3), 3.94 (6H, s, ArOCH3)
[0142]
The compounds (41) to (45) were synthesized according to the methods of
Reference Example 7, and Examples 1 and 4.

44
[0143]

[0144]
Compound (42) (yield was 80%)
1H NMR (300MHZ, CDC13), 86.90-6.95 (4H, m, ArH), 3.98 (6H, s, ArCO2CH3), 3.85
(6H, s, ArOCH3), 3.70 (6H, s, ArOCH3), 3.27 (6H, s, ArOCH3)
[0145]
Compound (44) (yield was 81% from the compound (42))
1H NMR (300MHz, CDC13), δ6.95-7.15 (4H, m, ArH), 3.90-4.00 (4H, m, ArCH2O),

45
3.95 (6H, s, ArOCH3), 3.87 (6H, s, ArOCH3), 3.73 (6H, s, ArOCH3)
Compound (45) (yield was 83%)
[a]D22=-89.55° (c0.22, CHC13)
1H NMR (300MHz, CDCl3), δ6.75-8.00 (12H, m, ArH), 6.47 (4H, d, J=8.4Hz, ArH), 4.65
(2H, d, J=14.1Hz, ArCH2), 4.44 (2H, d, J=12.6Hz, ArCH2), 4.40 (2H, d, J=13.5Hz,
ArCH2), 4.11 (6H, s, ArOCH3), 3.91 (6H, s, ArOCH3), 3.75 (6H, s, ArOCH3), 3.61 (2H, d,
J=13.8Hz,ArCH2)
Example 6
[0146]

[0147]
Production of amine (61)
30 mg (0.043 mmol) of a compound (60) was dissolved in 2 ml of acetonitrile,
and 0.1 to 0.2 ml of 25% ammonia water solution was added dropwise thereto. The
reaction mixture was stirred at room temperature for 48 hours, concentrated to remove
the solvent, and extracted with ethyl acetate. The resultant was subjected to
drying/concentration and thereafter purified by column chromatography (methylene
chloride: methanol = 15: 1) to obtain 20 mg (0.036 mmol) of a targeted substance (61)
(yield was 84%).
[0148]
The compounds of the present invention including those obtained in the

46
abovementioned Examples are described in Tables 1 to 4.
[0149]-[0152]
Table 1
Optically active quaternary ammonium salt (1)


47
(Table 1 continued)


48
(Table 1 continued)


49
(Table 1 continued)


50
(Table 1 continued)


51
(Table 1 continued)


52
[0153]
Table 2
Optically active quaternary ammonium salt (1)


53
[0154]
Table 3


54
(Table 3 continued)

Compound R1 R2 R2' RJ Physical property value
No. (1HNMR, 300MHZ,
CDC13)
50B OMe H 3-CF3-C6H4 3-CF3-C6H4 Br δ7.55-7.93 (16H, m,
ArH), 7.35 (2H, s,
ArH), 4.25 (4H, s,
ArCH2), 3.37 (6H, s,
ArOCH3)
51B OMe H 3,5-CF3-C6H3 3-CF3-C6H4 Br δ7.90-8.15 (12H, m,
ArH), 7.39 (2H, s,
ArH), 4.17 (4H, s,
ArCH2), 3.41 (6H, s,
ArOCH3)
52B OMe OMe H 3,5-CF3-C6H3 Br δ7.81-7.92 (6H, m,
ArH), 6.65 (2H, s,
ArH), 3.81-3.92 (4H,
m, ArCH2), 3.83 (6H, s,
ArOCH3), 3.79 (6H, s,
ArOCH3)
53B OMe H OMe 3,5-CF3-C6H3 Br δ8.02 (4H, s, ArH), 7.94
(2H, s, ArH), 6.87 (2H,
s, ArH), 4.04 (4H, s,
ArCH2), 3.95 (6H, s,
ArOCH3), 3.86 (6H, s,
ArOCH3)
54B OMe H H 3,5-CF3-C6H3 Br δ8.01 (4H, s, ArH), 7.91
(2H, s, ArH), 7.32 (2H,
d, J=8.4Hz, ArH), 7.08
(2H, d, J=8.4Hz, ArH),
4.02 (4H, d, J=3.0Hz,
ArCH2), 3.80 (6H, s,
ArOCH3)
55B OMe H H 3,4,5-F3-C6H2 Br δ7.26 (2H, d, J=8.4Hz,
ArH), 7.03 (2H, d,
J=8.4Hz, ArH),
7.10-7.17 (4H,m, ArH),
4.06 (4H, s, ArCH2),
3.77 (6H, s,ArOCH3)
56B OMe OMe OMe 3,5-CF3-C6H3 Br δ6.95-7.15 (4H, m,
ArH), 3.90-4.00 (4H,
m,ArCH2O-), 3.95 (6H,
s, ArOMe), 3.87 (6H, s,
ArOMe), 3.73 (6H, s,
ArOMe)

55
(Table 3 continued)

Compound R1 R2 R21 R3 Y2 Physical property value
No. (1HNMR, 300MHZ,
CDCl3)
57B Me Me H 3,4,5-F3-C6H2 Br δ7.15 (2H, d, J=6.6Hz,
ArH), 7.12 (2H, d,
J=6.6Hz, ArH), 7.09
(2H, s, ArH), 4.03 (4H,
d, J=2.4Hz, ArCH2),
2.37 (6H, s, ArCH3),
1.97 (6H, s,ArCH3)
[0155]
Table 4


Compound R1 R1 R21 R3 Physical property value (1HNMR,
No. 300MHz, CDC13)
23 Me H Me 3,4,5-F3-C6H2 57.31 (2H, s, ArH), 7.24 (2H, d,
J=6.6Hz, ArH), 7.21 (2H, d,
J=6.6Hz, ArH), 4.14 (2H, d,
J=13.8Hz, ArCH2), 3.46 (2H, d,
J=13.8Hz, ArCH2), 2.43 (6H, s,
ArCH3),2.09(6H,s,ArCH3)
47A OMe H C6H5 C6H5 δ7.33-7.69 (22H, m, ArH), 3.95
(4H, d, J=12.6Hz, ArCH2), 3.41
(4H, d, J=12.6Hz, ArCH2), 3.29
(6H,s,ArOCH3)
48A OMe H H 3,5-CF3-C6H3 δ7.96 (4H, s, ArH), 7.85 (2H, s,
ArH), 7.38 (2H, d, J=8.4Hz,
ArH), 7.08 (2H, d, J=8.4Hz,
ArH), 3.91 (6H, s, ArOCH3), 3.72
(2H, d, J=12.6Hz, ArCH2), 3.34
(2H,d,J=12.9Hz,ArCH2)

56
(Table 4 continued)

Compound R1 R2 R21 R3 Physical property value ( HNMR,
No. 300MHz, CDC13)
56A OMe OMe OMe 3,5-CF3-C6H3 δ8.32 (2H, s, ArH), 7.76 (2H, s,
ArH), 7.63 (2H, s, ArH), 3.98
(6H, s, ArOCH3), 3.87 (6H, s,
ArOCH3), 3.67 (6H, s, ArOCH3),
3.45-3.76 (4H, m, ArCH2);
m.p.=25 8-260° (decomp.)
57A Me H Me 3,4,5-CF3-C6H2 δ7.00-7.22 (6H, m, ArH), 3.72
(2H, d, J=12.6Hz, ArCH2), 3.10
(2H, d, J=12.6Hz, ArCH2), 2.37
(6H, s, ArCH3), 2.06 (6H, s,
ArCH3)
[0156]
Reference Example 1
Asymmetric synthesis of a-amino acid using optically active quaternary ammonium salt
compound (29)
74 mg of tert-butyl(benzhydrylideneamino)acetate, 2.0 mg of an optically active
quaternary ammonium salt compound (R, R)-(29), and 36 µl of benzylbromide were
added to 2 ml of a toluene solvent at 0°C. 0.5 ml of 50% KOH aqueous solution was
added dropwise to the resulting solution while stirring. The reaction solution was
stirred for 8 hours at 0°C and thereafter extracted by adding water and ether. The
reaction product was purified by column chromatography (hexane: ether = 15: 1) to
obtain targeted tert-butyl-2-(benzhydrylideneamino)-3-phenylpropionate (yield was
95%).
Furthermore, optical purity was determined by HPLC analysis (hexane:
isopropyl alcohol = 100: 1) using CHIRALCEL® OD manufactured by Daicel Chemical
Industries, Ltd (asymmetric yield was 97% ee).
[0157]

57
Reference Example 2
Asymmetric synthesis of a-amino acid using optically active quaternary ammonium salt
compound (45)
When the same reaction as in the above Reference Example 1 was carried out
using the catalyst represented by the formula (45), a corresponding alkylated substance
was obtained with a yield of 96% and asymmetric yield of 94% ee.
[0158]
Reference Example 3
Asymmetric synthesis of a-amino acid using optically active quaternary ammonium salt
compound (46)
When the same reaction as in the above Reference Example 1 was carried out
using the catalyst represented by the formula (46), a corresponding alkylated substance
was obtained with a yield of 100% and asymmetric yield of 98% ee.
[0159]
Reference Example 4
Production of 2,3,2',3'-tetramethyl-6,6'-dinitrobiphenyl (34)
[0160]

[0161]
In 20 ml of a DMF solvent, 5.5 g (20 mmol) of
2-iodo-3,4-dimethyl-l-nitrobenzene and 10 g (155 mmol) of copper powder were heated

58
at 150°C for 48 hours. After the completion of the reaction, copper powder was
removed by filtration and thereafter, the resultant was extracted using ethyl acetate,
dried/concentrated, and then purified by column chromatography (ethyl acetate: hexane =
1: 10) to obtain 2.9 g (0.96 mmol) of 2,3,2',3'-tetramethyl-6,6'-dinitrobiphenyl (34)
(yield was 96%).
1H NMR (300MHZ, CDC13), δ7.91 (2H, d, J=8.4Hz, ArCH), 7.34 (2H, d, J=8.4Hz,
ArCH), 2.40 (6H, s, ArCH3), 1.84 (6H, s, ArCH3)
[0162]
Reference Example 5
Production of 5,6,5',6'-tetramethylbiphenyl-2,2'-diamine (35)
[0163]

[0164]
3.0 g (10 mmol) of the compound (34) and 500 mg (5 mol%) of 10% Pd/C were
added to 50 ml of a methanol solvent and were stirred for 12 hours under hydrogen
atmosphere. After the completion of the reaction, solid matter was removed by
filtration and thereafter, the resultant was purified by column chromatography (ethyl
acetate: hexane = 1: 5) to obtain 2.4 g (10 mmol) of
5,6,5',6'-tetramethylbiphenyl-2,2'-diamine (35) (yield was 100%).
1H NMR (300MHz, CDC13), δ6.97 (2H, d, J=8.1Hz, ArH), 6.58 (2H, d, J=8.4Hz, ArH),
3.25 (4H, br, NH2), 2.21 (6H, s, ArCH3), 1.86 (6H, s, ArCH3)

59
[0165]
Reference Example 6
Production of 3,3'-dibromo-5,6,5',6'-tetramethylbiphenyl-2,2'-diamine (36)
[0166]

[0167]
After dissolving 2.75 g (11.5 mmol) of the compound (35) in 20 ml of isopropyl
alcohol, 4.45 g (25 mmol) of NBS was added thereto at 60°C. The reaction mixture
was stirred for 1 hour under reflux and thereafter, poured into ice-cold water to stop the
reaction. The obtained suspension was extracted with ethyl acetate and the resultant
was dried/concentrated and thereafter purified by column chromatography (ethyl acetate:
hexane = 1: 10) to obtain 2.98 g (7.48 mmol) of
3,3'-dibromo-5,6,5',6'-tetramethylbiphenyl-2,2'-diamine (36) (yield was 65%).
1H NMR (300MHz, CDC13), δ7.27 (2H, s, ArH), 3.71 (4H, br, NH2), 2.21 (6H, s, ArCH3),
1.80(6H,s,ArCH3)
[0168]
Reference Example 7
3,4,5,3'",4'",5'"-hexafluoro-4',5',4",5"-tetramethyl-(l,l';3',3";l",l'")quaterphenyl-2'
,2"-diamine (37)
[0169]

60

[0170]
1.5 g (3.77 mmol) of the compound (36), 1.5 g (9.0 mmol) of
3,4,5-trifluorophenylborate, 42 mg (5 mol%) of Pd(OAc)2, 99 mg (10 mol%) of PPh3,
and 3.78 g (12.0 mmol) of Ba(OH)2-8H2O were added to 10 ml of a DME-H2O (9: 1
(v/v)) solvent and were stirred for 12 hours at 100°C under argon atmosphere. After the
completion of the reaction, the obtained reaction mixture was poured into a saturated
NH4Cl solution and thereafter, the catalyst was removed by celite filtration.
Furthermore, the resulting solution was extracted with ethyl acetate, dried/concentrated,
and then purified by column chromatography (ethyl acetate: hexane = 1: 10) to obtain
1.63 g (3.21 mmol) of the compound (37) (yield was 85%).
1H NMR (300MHZ, CDCl3), δ7.15 (2H, d, J=6.6Hz, ArH), 7.12 (2H, d, J=6.6Hz, ArH),
6.92 (2H, s, ArH), 3.46 (4H, br, NH2), 2.26 (6H, s, ArCH3), 1.92 (6H, s, ArCH3)
[0171]
Reference Example 8

61
Production of
2',2"-diiodo-3,4,5,3'",4'",5'"-hexafluoro-4',5',4",5"-tetramethyl-(l,l';3',3";l",l'")qu
aterphenyl (38)
[0172]

[0173]
760 mg (1.52 mmol) of the compound (37) was dissolved in 20 ml of 6M HC1
and the resulting solution was cooled down to 0°C. 315 mg (4.56 mmol) of NaNO2
aqueous solution was slowly added dropwise to this solution in 5 minutes. Furthermore,
1.51 g (9.12 mmol) of KI aqueous solution was added dropwise thereto at the same
temperature and the reaction temperature was increased to 80°C after the addition.
After stirring the reaction mixture for another 2 hours at the same temperature, it was
cooled using ice-cold water and the reaction was stopped by adding sodium sulfite
thereto. The obtained mixture was extracted with diethylether and the resultant was
dried/concentrated and thereafter purified by column chromatography (ethyl acetate:
hexane =1:10) to obtain 1.03 g (1.43 mmol) of the compound (38) (yield was 94%).
1H NMR (300MHZ, CDC13), δ7.09 (2H, s, ArH), 6.99 (2H, d, J=7.2Hz, ArH), 6.97 (2H, d,
J=6.6Hz, ArH), 2.33 (6H, s, ArCH3), 1.99 (6H, s, ArCH3)
[0174]
Reference Example 9

62
Production of
3,4,5,3'",4'",5'"-hexafluoro-4',5',4",5"-tetramethyl-(l,l';3',3";l",l'")quaterphenyl-2'
,2"-dimethyl dicarbonate (20)
[0175]

[0176]
361 mg (0.5 mmol) of the compound (38), 5.6 mg (5 mol%) of Pd(OAc)2, 10.3
mg (5 mol%) of l,3-bis(diphenylphosphino)propane, 0.52 ml (3 mmol) of
N-ethyldiisopropylamine, and 3ml of MeOH were added to 3 ml of a toluene solvent and
were stirred for 48 hours at 80°C under 10 atm of carbon monoxide. After the
completion of the reaction, the catalyst was removed by filtration and thereafter, the
resultant was purified by column chromatography (ethyl acetate: hexane = 1: 20) to
obtain 198 mg (0.34 mmol) of the compound (20) (yield was 68%).
1HNMR (300MHZ, CDCl3), δ7.14 (2H, s, ArH), 6.99 (2H, d, J=6.6Hz, ArH), 6.94 (2H, d,
J=6.3Hz, ArH), 3.27 (6H, s, ArH), 2.40 (6H, s, ArCH3), 1.97 (6H, s, ArCH3)

63
CLAIMS
1. An optically active quaternary ammonium salt compound represented by formula
(1),

wherein Rl represents a halogen, a C1-8 alkyl which is optionally substituted and
which is linear, branched, or cyclic, a C2-8 alkenyl which is optionally substituted, a C2-8
alkynyl which is optionally substituted, a C6-14 aryl which is optionally substituted, a C3-8
heteroaryl which is optionally substituted, a C1-8 alkoxy which is optionally substituted
and which is linear, branched, or cyclic, or a C7-16 aralkyl which is optionally substituted;
R2 and R21 each independently represents hydrogen, halogen, nitro, a C1-8 alkyl
which is optionally substituted and which is linear, branched, or cyclic, a C2-8 alkenyl
which is optionally substituted, a C2-8 alkynyl which is optionally substituted, a C6-14 aryl
which is optionally substituted, a C1-8 alkoxy which is optionally substituted and which is
linear, branched, or cyclic, or a C7-16 aralkyl which is optionally substituted;
one of combinations of R1 and R21, and R2 and R21, may bond to form a C1-6
alkylene which is optionally substituted, a C1-6 alkylenemonooxy which is optionally
substituted, or a C1-6 alkylenedioxy which is optionally substituted;
R3 and R4 each independently represents hydrogen, a C6-14 aryl which is
optionally substituted, a C3-8 heteroaryl which is optionally substituted, or a C7-16 aralkyl

64
which is optionally substituted, with a proviso that R3 and R4 are not hydrogen at the
same time;
R5 represents hydrogen, halogen, a C1-8 alkyl which is optionally substituted and
which is linear, branched, or cyclic, a C1-8 alkoxy which is optionally substituted and
which is linear, branched, or cyclic, a C2-8 alkenyl which is optionally substituted, or a
C2-8 alkynyl which is optionally substituted;
R6 represents halogen, a C1-8 alkyl which is optionally substituted and which is
linear, branched, or cyclic, a C1-8 alkoxy which is optionally substituted and which is
linear, branched, or cyclic, a C2-8 alkenyl which is optionally substituted, or a C2-8 alkynyl
which is optionally substituted, and R5 and R may bond to form an aromatic ring which
is optionally substituted;
ring A and ring B do not have a same substituent at the same time;
symbols * and ** represent an optical activity having an axial chirality; and
X" represents an anion.
2. The compound according to Claim 1,
wherein R is hydrogen and R is halogen, nitro, a C1-8 alkyl which is optionally
substituted and which is linear, branched, or cyclic, a C2-8 alkenyl which is optionally
substituted, a C2-8 alkynyl which is optionally substituted, a C6-14 aryl which is optionally
substituted, a C1-8 alkoxy which is optionally substituted and which is linear, branched, or
cyclic, or a C7-16 aralkyl which is optionally substituted.
3. The compound according to Claim 1,
wherein R1, R2, and R21 each independently represents a C1-8 alkoxy which is
optionally substituted and which is linear, branched, or cyclic.

65
4. The compound according to Claim 1,
wherein R1 is a C1-8 alkoxy which is optionally substituted and which is linear,
branched, or cyclic, and R2 and R21 bond to form a C1-6 alkylenedioxy which is
optionally substituted.
5. The compound according to Claim 1,
wherein R1 and R21 each independently represents a C1-8 alkoxy which is
optionally substituted and which is linear, branched, or cyclic, and R is hydrogen.
6. The compound according to any one of Claims 1 to 4,
wherein R3 represents a C6-14 aryl (which is optionally substituted by halogen, a
C1-8 alkyl which is optionally substituted by halogen and which is linear, branched, or
cyclic, or a C6-14 aryl), a C3-8 heteroaryl (which is optionally substituted by halogen, a
C1-8 alkyl which is optionally substituted by halogen and which is linear, branched, or
cyclic, or a C6-14 aryl), or a C7-16 aralkyl (which is optionally substituted by halogen, a
C1-8 alkyl which is optionally substituted by halogen and which is linear, branched, or
cyclic, or a C6-14 aryl); and
R4 is hydrogen.
7. The compound according to any one of Claims 1 to 4,
wherein R3 represents hydrogen; and
R4 is a C6-14 aryl (which is optionally substituted by halogen, a C1-8 alkyl which
is optionally substituted by halogen and which is linear, branched, or cyclic, or a C6-14
aryl), a C3-8 heteroaryl (which is optionally substituted by halogen, a C1-8 alkyl which is

66
optionally substituted by halogen and which is linear, branched, or cyclic, or a C6-14 aryl),
or a C7-16 aralkyl (which is optionally substituted by halogen, a C1-8 alkyl which is
optionally substituted by halogen and which is linear, branched, or cyclic, or a C6-14 aryl).
8. The compound according to any one of Claims 1 to 7,
wherein X" is an anion of halogen, OH-, BF4-, PF6-, HSO4-, an anion of C1-6
dialkylsulfate which is optionally substituted and which is linear, branched, or cyclic, an
anion of C1-6 alkylsulfonate which is optionally substituted and which is linear, branched,
or cyclic, an anion of C6-14 arylsulfonate which is optionally substituted, or an anion of
C7-16 aralkylsulfonate which is optionally substituted.
9. An optically active bisbenzyl compound or a racemic bisbenzyl compound
represented by formula (2) and which has an axial chirality,

wherein R1 represents a halogen, a C1-8 alkyl which is optionally substituted and
which is linear, branched, or cyclic, a C2-8 alkenyl which is optionally substituted, a C2-8
alkynyl which is optionally substituted, a C6-14 aryl which is optionally substituted, a C3-8
heteroaryl which is optionally substituted, a C1-8 alkoxy which is optionally substituted
and which is linear, branched, or cyclic, or a C7-16 aralkyl which is optionally substituted;
R21 each independently represents hydrogen, halogen, nitro, a C1-8 alkyl which is

67
optionally substituted and which is linear, branched, or cyclic, a C2-8 alkenyl which is
optionally substituted, a C2-8 alkynyl which is optionally substituted, a C6-14 aryl which is
optionally substituted, a C1-8 alkoxy which is optionally substituted and which is linear,
branched, or cyclic, or a C7-16 aralkyl which is optionally substituted;
R1 and R21 may bond to form a C1-6 alkylene which is optionally substituted, a
C1-6 alkylenemonooxy which is optionally substituted, or a C1-6 alkylenedioxy which is
optionally substituted;
R3 represents hydrogen, a C1-14 aryl which is optionally substituted, a C3-8
heteroaryl which is optionally substituted, or a C7-16 aralkyl which is optionally
substituted; and
Y represents a leaving group.
10. An optically active azepine derivative or a racemic azepine derivative represented
by formula (3),

wherein R1 represents a halogen, a C1-8 alkyl which is optionally substituted and
which is linear, branched, or cyclic, a C2-8 alkenyl which is optionally substituted, a C2-8
alkynyl which is optionally substituted, a C6-14 aryl which is optionally substituted, a C3-8
heteroaryl which is optionally substituted, a C1-8 alkoxy which is optionally substituted

68
and which is linear, branched, or cyclic, or a C7-16 aralkyl which is optionally substituted;
R2 and R21 each independently represents hydrogen, halogen, nitro, a C1-8 alkyl
which is optionally substituted and which is linear, branched, or cyclic, a C2-8 alkenyl
which is optionally substituted, a C2-8 alkynyl which is optionally substituted, a C6-14 aryl
which is optionally substituted, a C1-8 alkoxy which is optionally substituted and which is
linear, branched, or cyclic, or a C7-16 aralkyl which is optionally substituted;
one of combinations of R1 and R21, and R2 and R21, may bond to form a C1-6
alkylene which is optionally substituted, a C1-6 alkylenemonooxy which is optionally
substituted, or a C1-6 alkylenedioxy which is optionally substituted; and
R3 represents hydrogen, a C1-14 aryl which is optionally substituted, a C3-8
heteroaryl which is optionally substituted, or a C7-16 aralkyl which is optionally
substituted.
11. A production method of an azepine derivative represented by formula (5)

(5)
comprising:
reacting a biphenyl derivative represented by formula (4)

69
with ammonia,
wherein Ra represents a C6-14 aryl which is optionally substituted, a C3-8
heteroaryl which is optionally substituted, or a C7-16 aralkyl which is optionally
substituted;
Rb represents halogen, nitro, a C1-8 alkyl which is optionally substituted and
which is linear, branched, or cyclic, a C2-8 alkenyl which is optionally substituted, a C2-8
alkynyl which is optionally substituted, a C6-14 aryl which is optionally substituted, a C1-8
alkoxy which is optionally substituted and which is linear, branched, or cyclic, or a C7-16
aralkyl which is optionally substituted, and Rb may bond with each other to form a C1-6
alkylene which is optionally substituted, a C1-6 alkylenemonooxy which is optionally
substituted, a C1-6 alkylenedioxy which is optionally substituted, or an aromatic ring
which is optionally substituted; and
m is 0 or represents an integer of 1 to 3 and Rb may be different substituents to
each other when m is 2 or more.
12. A production method of an optically active quaternary ammonium salt compound
represented by formula (8)

70

comprising:
reacting an optically active bisbenzyl derivative represented by formula (6)

with a racemic azepine derivative represented by formula (7)

wherein Rc represents halogen, a C1-8 alkyl which is optionally substituted and
which is linear, branched, or cyclic, a C2-8 alkenyl which is optionally substituted, a C2-8
alkynyl which is optionally substituted, a C6-14 aryl which is optionally substituted, a C3-8
heteroaryl which is optionally substituted, a C1-8 alkoxy which is optionally substituted
and which is linear, branched, or cyclic, or a C7-16 aralkyl which is optionally substituted;
Rd and Re each independently represents halogen, nitro, a C1-8 alkyl which is

71
optionally substituted and which is linear, branched, or cyclic, a C2-8 alkenyl which is
optionally substituted, a C2-8 alkynyl which is optionally substituted, a C6-14 aryl which is
optionally substituted, a C1-8 alkoxy which is optionally substituted and which is linear,
branched, or cyclic, a C3-8 heteroaryl which is optionally substituted, or a C7-16 aralkyl
which is optionally substituted, and Rd may bond with each other to form a C1-6 alkylene
which is optionally substituted, a C1-6 alkylenemonooxy which is optionally substituted,
or a C1-6 alkylenedioxy which is optionally substituted, and n is 0 or represents an integer
of 1 to 2 and Rd may be different substituents to each other when n is 2;
Y2 represents a leaving group;
Rf represents halogen, a C1-8 alkyl which is optionally substituted and which is
linear, branched, or cyclic, a C1-8 alkoxy which is optionally substituted and which is
linear, branched, or cyclic, a C2-8 alkenyl which is optionally substituted, a C2-8 alkynyl
which is optionally substituted, a C6-14 aryl which is optionally substituted, a C3-8
heteroaryl which is optionally substituted, or a C7-16 aralkyl which is optionally
substituted, and k is 0 or represents an integer of 1 to 4 and Rf may be different
substituents to each other when k is 2 or more and Rf may bond with each other to form
an aromatic ring which is optionally substituted; and
symbols * and ** represent an optical activity having an axial chirality.
13. A production method of an optically active quaternary ammonium salt compound
represented by formula (8)

72

comprising:
reacting a racemic bisbenzyl derivative represented by formula (6)

with an optically active azepine derivative represented by formula (7)

wherein Rc represents halogen, a C1-8 alkyl which is optionally substituted and
which is linear, branched, or cyclic, a C2-8 alkenyl which is optionally substituted, a C2-8
alkynyl which is optionally substituted, a C6-14 aryl which is optionally substituted, a C3-8
heteroaryl which is optionally substituted, a C1-8 alkoxy which is optionally substituted
and which is linear, branched, or cyclic, or a C7-16 aralkyl which is optionally substituted;
Rd and Re each independently represents halogen, nitro, a C1-8 alkyl which is

73
optionally substituted and which is linear, branched, or cyclic, a C2-8 alkenyl which is
optionally substituted, a C2-8 alkynyl which is optionally substituted, a C6-14 aryl which is
optionally substituted, a C1-8 alkoxy which is optionally substituted and which is linear,
branched, or cyclic, a C3-8 heteroaryl which is optionally substituted, or a C7-16 aralkyl
which is optionally substituted, and Rd may bond with each other to form a C1-6 alkylene
which is optionally substituted, a C1-6 alkylenemonooxy which is optionally substituted,
or a C1-6 alkylenedioxy which is optionally substituted, and n is 0 or represents an integer
of 1 to 2 and Rd may be different substituents to each other when n is 2, and Y2
represents a leaving group;
Rf represents halogen, a C1-8 alkyl which is optionally substituted and which is
linear, branched, or cyclic, a C1-8 alkoxy which is optionally substituted and which is
linear, branched, or cyclic, a C2-8 alkenyl which is optionally substituted, a C2-8 alkynyl
which is optionally substituted, a C6-14 aryl which is optionally substituted, a C3-8
heteroaryl which is optionally substituted, or a C7-16 aralkyl which is optionally
substituted, and k is 0 or represents an integer of 1 to 4 and Rf may be different
substituents to each other when k is 2 or more and Rf may bond with each other to form
an aromatic ring which is optionally substituted; and
symbols * and ** represent an optical activity having an axial chirality..
14. A production method of an optically active quaternary ammonium salt compound
represented by formula (8)

74

comprising:
reacting an optically active azepine derivative represented by formula (9)

with a racemic bisbenzyl derivative represented by formula (10)

wherein Rc represents halogen, a C1-8 alkyl which is optionally substituted and
which is linear, branched, or cyclic, a C2-8 alkenyl which is optionally substituted, a C2-8
alkynyl which is optionally substituted, a C6-14 aryl which is optionally substituted, a C3-8
heteroaryl which is optionally substituted, a C1-8 alkoxy which is optionally substituted
and which is linear, branched, or cyclic, or a C7-16 aralkyl which is optionally substituted;
Rd and Re each independently represents halogen, nitro, a C1-8 alkyl which is

75
optionally substituted and which is linear, branched, or cyclic, a C2-8 alkenyl which is
optionally substituted, a C2-8 alkynyl which is optionally substituted, a C6-14 aryl which is
optionally substituted, a C1-8 alkoxy which is optionally substituted and which is linear,
branched, or cyclic, a C3-8 heteroaryl which is optionally substituted, or a C7-16 aralkyl
which is optionally substituted, and Rd may bond with each other to form a C1-6 alkylene
which is optionally substituted, a C1-6 alkylenemonooxy which is optionally substituted,
or a C1-6 alkylenedioxy which is optionally substituted;
n is 0 or represents an integer of 1 to 2 and Rd may be different substituents to
each other when n is 2;
Rf represents halogen, a C1-8 alkyl which is optionally substituted and which is
linear, branched, or cyclic, a C1-8 alkoxy which is optionally substituted and which is
linear, branched, or cyclic, a C2-8 alkenyl which is optionally substituted, a C2-8 alkynyl
which is optionally substituted, a C6-14 aryl which is optionally substituted, a C3-8
heteroaryl which is optionally substituted, or a C7_16 aralkyl which is optionally
substituted;
k is 0 or represents an integer of 1 to 4 and Rf may be different substituents to
each other when k is 2 or more;
Y2 represents a leaving group; and
symbols * and ** represent an optical activity having an axial chirality.
15. A production method of an optically active quaternary ammonium salt compound
represented by formula (8)

76
comprising:
reacting a racemic azepine derivative represented by formula (9)

with an optically active bisbenzyl derivative represented by formula (10)

wherein Rc represents halogen, a C1-8 alkyl which is optionally substituted and
which is linear, branched, or cyclic, a C2-8 alkenyl which is optionally substituted, a C2-8
alkynyl which is optionally substituted, a C1-14 aryl which is optionally substituted, a C3-8
heteroaryl which is optionally substituted, a C1-8 alkoxy which is optionally substituted
and which is linear, branched, or cyclic, or a C7-16 aralkyl which is optionally substituted;
Rd and Re each independently represents halogen, nitro, a C1-8 alkyl which is

77
optionally substituted and which is linear, branched, or cyclic, a C2-8 alkenyl which is
optionally substituted, a C2-8 alkynyl which is optionally substituted, a C6-14 aryl which is
optionally substituted, a C1-8 alkoxy which is optionally substituted and which is linear,
branched, or cyclic, a C3-8 heteroaryl which is optionally substituted, or a C7-16 aralkyl
which is optionally substituted, and Rd may bond with each other to form a C1-6 alkylene
which is optionally substituted, a C1-6 alkylenemonooxy which is optionally substituted,
or a C1-6 alkylenedioxy which is optionally substituted;
n is 0 or represents an integer of 1 to 2 and Rd may be different substituents to
each other when n is 2;
Rf represents halogen, a C1-8 alkyl which is optionally substituted and which is
linear, branched, or cyclic, a C1-8 alkoxy which is optionally substituted and which is
linear, branched, or cyclic, a C2-8 alkenyl which is optionally substituted, a C2-8 alkynyl
which is optionally substituted, a C6-14 aryl which is optionally substituted, a C3-8
heteroaryl which is optionally substituted, or a C7-16 aralkyl which is optionally
substituted;
k is 0 or represents an integer of 1 to 4 and Rf may be different substituents to
each other when k is 2 or more;
Y2 represents a leaving group; and
symbols * and ** represent an optical activity having an axial chirality.

An optically active quaternary ammonium salt compound represented by
formula (1),

wherein R1 represents a halogen, a C1-8 alkyl which is optionally substituted and
which is linear, branched, or cyclic, a C2-8 alkenyl which is optionally substituted, a C2-8
alkynyl which is optionally substituted, a C6-14 aryl which is optionally substituted, a C3-8
heteroaryl which is optionally substituted, a C1-8 alkoxy which is optionally substituted
and which is linear, branched, or cyclic, or a C7-16 aralkyl which is optionally substituted;
R2 and R21 each independently represents hydrogen, halogen, nitro, a C1-8 alkyl
which is optionally substituted and which is linear, branched, or cyclic, a C2-8 alkenyl
which is optionally substituted, a C2-8 alkynyl which is optionally substituted, a C6-14 aryl
which is optionally substituted, a C1-8 alkoxy which is optionally substituted and which is
linear, branched, or cyclic, or a C7-16 aralkyl which is optionally substituted;
one of combinations of R1 and R21, and R2 and R21, may bond to form a C1-6
alkylene which is optionally substituted, a C1-6 alkylenemonooxy which is optionally
substituted, or a C1-6 alkylenedioxy which is optionally substituted;
R3 and R4 each independently represents hydrogen, a C6-14 aryl which is
optionally substituted, a C3-8 heteroaryl which is optionally substituted, or a C7-16 aralkyl

79
which is optionally substituted, with a proviso that R and R4 are not hydrogen at the
same time;
R5 represents hydrogen, halogen, a C1-8 alkyl which is optionally substituted and
which is linear, branched, or cyclic, a C1-8 alkoxy which is optionally substituted and
which is linear, branched, or cyclic, a C2-8 alkenyl which is optionally substituted, or a
C2-8 alkynyl which is optionally substituted;
R6 represents halogen, a C1-8 alkyl which is optionally substituted and which is
linear, branched, or cyclic, a C1-8 alkoxy which is optionally substituted and which is
linear, branched, or cyclic, a C2-8 alkenyl which is optionally substituted, or a C2-8 alkynyl
which is optionally substituted, and R5 and R6 may bond to form an aromatic ring which
is optionally substituted;
ring A and ring B do not have a same substituent at the same time;
symbols * and ** represent an optical activity having an axial chirality; and
X- represents an anion.

Documents:

03319-kolnp-2007-abstract.pdf

03319-kolnp-2007-claims.pdf

03319-kolnp-2007-correspondence others.pdf

03319-kolnp-2007-description complete.pdf

03319-kolnp-2007-form 1.pdf

03319-kolnp-2007-form 3.pdf

03319-kolnp-2007-form 5.pdf

03319-kolnp-2007-gpa.pdf

03319-kolnp-2007-international publication.pdf

03319-kolnp-2007-international search report.pdf

03319-kolnp-2007-pct priority document notification.pdf

03319-kolnp-2007-translated copy of priority document.pdf

3319-KOLNP-2007-(05-03-2012)-CORRESPONDENCE.pdf

3319-KOLNP-2007-(05-12-2013)-CORRESPONDENCE.pdf

3319-KOLNP-2007-(08-10-2014)-CORRESPONDENCE.pdf

3319-KOLNP-2007-(09-01-2015)-CORRESPONDENCE.pdf

3319-KOLNP-2007-(09-04-2012)-CORRESPONDENCE.pdf

3319-KOLNP-2007-(10-06-2014)-CORRESPONDENCE.pdf

3319-KOLNP-2007-(11-09-2013)-CORRESPONDENCE.pdf

3319-KOLNP-2007-(14-08-2013)-CORRESPONDENCE.pdf

3319-KOLNP-2007-(17-01-2013)-CORRESPONDENCE.pdf

3319-KOLNP-2007-(26-03-2014)-CORRESPONDENCE.pdf

3319-KOLNP-2007-(30-12-2013)-CORRESPONDENCE.pdf

3319-KOLNP-2007-ABSTRACT 1.1.pdf

3319-KOLNP-2007-ABSTRACT 1.2.pdf

3319-KOLNP-2007-AMANDED CLAIMS.pdf

3319-KOLNP-2007-AMANDED PAGES OF SPECIFICATION 1.1.pdf

3319-KOLNP-2007-AMANDED PAGES OF SPECIFICATION.pdf

3319-KOLNP-2007-ASSIGNMENT.pdf

3319-KOLNP-2007-CLAIMS 1.1.pdf

3319-KOLNP-2007-CORRESPONDENCE 1.1.pdf

3319-KOLNP-2007-CORRESPONDENCE 1.2.pdf

3319-KOLNP-2007-CORRESPONDENCE 1.3.pdf

3319-KOLNP-2007-CORRESPONDENCE 1.5.pdf

3319-KOLNP-2007-CORRESPONDENCE OTHERS 1.1.pdf

3319-KOLNP-2007-CORRESPONDENCE OTHERS 1.2.pdf

3319-KOLNP-2007-CORRESPONDENCE OTHERS 1.3.pdf

3319-KOLNP-2007-CORRESPONDENCE-1.4.pdf

3319-KOLNP-2007-DESCRIPTION (COMPLETE) 1.1.pdf

3319-KOLNP-2007-DESCRIPTION (COMPLETE) 1.2.pdf

3319-KOLNP-2007-EXAMINATION REPORT REPLY RECIEVED.pdf

3319-KOLNP-2007-FORM 1 1.1.pdf

3319-KOLNP-2007-FORM 1-1.2.pdf

3319-KOLNP-2007-FORM 18.pdf

3319-KOLNP-2007-FORM 2-1.1.pdf

3319-KOLNP-2007-FORM 2.pdf

3319-KOLNP-2007-FORM 3 1.1.pdf

3319-KOLNP-2007-FORM 3 1.2.pdf

3319-KOLNP-2007-FORM 3-1.1.pdf

3319-KOLNP-2007-FORM 5 1.1.pdf

3319-KOLNP-2007-FORM 5 1.2.pdf

3319-KOLNP-2007-FORM 6.pdf

3319-KOLNP-2007-OTHERS 1.1.pdf

3319-KOLNP-2007-OTHERS 1.2.pdf

3319-KOLNP-2007-PA.pdf

3319-KOLNP-2007-PETITION UNDER RULE 137.pdf

abstract-03319-kolnp-2007.jpg


Patent Number 265193
Indian Patent Application Number 3319/KOLNP/2007
PG Journal Number 07/2015
Publication Date 13-Feb-2015
Grant Date 12-Feb-2015
Date of Filing 07-Sep-2007
Name of Patentee NIPPON SODA CO. LTD.
Applicant Address 2-1, OHTEMACHI 2-CHOME CHIYODA-KU, TOKYO
Inventors:
# Inventor's Name Inventor's Address
1 MARUOKA KEIJI C/O KYOTO UNIVERSITY, GRADUATE SCHOOL OF SCIENCE KITASHIRAKAWA-OIWAKE-CHO SAKYO-KU, KYOTO-SHI, KYOTO
2 YASUSHI KUBOTA C/O NIPPON SODA CO., LTD., ODAWARA RESEARCH CENTER 345, TAKADA, ODAWARA-SHI, KANAGAWA-KEN
PCT International Classification Number C07D 487/10
PCT International Application Number PCT/JP2006/304091
PCT International Filing date 2006-03-03
PCT Conventions:
# PCT Application Number Date of Convention Priority Country
1 2005-192757 2005-06-30 Japan
2 2005-059694 2005-03-03 Japan