WO2006035685A1 - 6-置換-1-メチル-1-h-ベンズイミダゾール誘導体の製造方法及びその製造中間体 - Google Patents
6-置換-1-メチル-1-h-ベンズイミダゾール誘導体の製造方法及びその製造中間体 Download PDFInfo
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- WO2006035685A1 WO2006035685A1 PCT/JP2005/017573 JP2005017573W WO2006035685A1 WO 2006035685 A1 WO2006035685 A1 WO 2006035685A1 JP 2005017573 W JP2005017573 W JP 2005017573W WO 2006035685 A1 WO2006035685 A1 WO 2006035685A1
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D277/00—Heterocyclic compounds containing 1,3-thiazole or hydrogenated 1,3-thiazole rings
- C07D277/02—Heterocyclic compounds containing 1,3-thiazole or hydrogenated 1,3-thiazole rings not condensed with other rings
- C07D277/20—Heterocyclic compounds containing 1,3-thiazole or hydrogenated 1,3-thiazole rings not condensed with other rings having two or three double bonds between ring members or between ring members and non-ring members
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- C07D—HETEROCYCLIC COMPOUNDS
- C07D277/00—Heterocyclic compounds containing 1,3-thiazole or hydrogenated 1,3-thiazole rings
- C07D277/02—Heterocyclic compounds containing 1,3-thiazole or hydrogenated 1,3-thiazole rings not condensed with other rings
- C07D277/20—Heterocyclic compounds containing 1,3-thiazole or hydrogenated 1,3-thiazole rings not condensed with other rings having two or three double bonds between ring members or between ring members and non-ring members
- C07D277/32—Heterocyclic compounds containing 1,3-thiazole or hydrogenated 1,3-thiazole rings not condensed with other rings having two or three double bonds between ring members or between ring members and non-ring members with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to ring carbon atoms
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- C07C211/00—Compounds containing amino groups bound to a carbon skeleton
- C07C211/43—Compounds containing amino groups bound to a carbon skeleton having amino groups bound to carbon atoms of six-membered aromatic rings of the carbon skeleton
- C07C211/44—Compounds containing amino groups bound to a carbon skeleton having amino groups bound to carbon atoms of six-membered aromatic rings of the carbon skeleton having amino groups bound to only one six-membered aromatic ring
- C07C211/52—Compounds containing amino groups bound to a carbon skeleton having amino groups bound to carbon atoms of six-membered aromatic rings of the carbon skeleton having amino groups bound to only one six-membered aromatic ring the carbon skeleton being further substituted by halogen atoms or by nitro or nitroso groups
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- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C217/00—Compounds containing amino and etherified hydroxy groups bound to the same carbon skeleton
- C07C217/78—Compounds containing amino and etherified hydroxy groups bound to the same carbon skeleton having amino groups and etherified hydroxy groups bound to carbon atoms of six-membered aromatic rings of the same carbon skeleton
- C07C217/80—Compounds containing amino and etherified hydroxy groups bound to the same carbon skeleton having amino groups and etherified hydroxy groups bound to carbon atoms of six-membered aromatic rings of the same carbon skeleton having amino groups and etherified hydroxy groups bound to carbon atoms of non-condensed six-membered aromatic rings
- C07C217/82—Compounds containing amino and etherified hydroxy groups bound to the same carbon skeleton having amino groups and etherified hydroxy groups bound to carbon atoms of six-membered aromatic rings of the same carbon skeleton having amino groups and etherified hydroxy groups bound to carbon atoms of non-condensed six-membered aromatic rings of the same non-condensed six-membered aromatic ring
- C07C217/84—Compounds containing amino and etherified hydroxy groups bound to the same carbon skeleton having amino groups and etherified hydroxy groups bound to carbon atoms of six-membered aromatic rings of the same carbon skeleton having amino groups and etherified hydroxy groups bound to carbon atoms of non-condensed six-membered aromatic rings of the same non-condensed six-membered aromatic ring the oxygen atom of at least one of the etherified hydroxy groups being further bound to an acyclic carbon atom
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- C07C217/00—Compounds containing amino and etherified hydroxy groups bound to the same carbon skeleton
- C07C217/78—Compounds containing amino and etherified hydroxy groups bound to the same carbon skeleton having amino groups and etherified hydroxy groups bound to carbon atoms of six-membered aromatic rings of the same carbon skeleton
- C07C217/80—Compounds containing amino and etherified hydroxy groups bound to the same carbon skeleton having amino groups and etherified hydroxy groups bound to carbon atoms of six-membered aromatic rings of the same carbon skeleton having amino groups and etherified hydroxy groups bound to carbon atoms of non-condensed six-membered aromatic rings
- C07C217/82—Compounds containing amino and etherified hydroxy groups bound to the same carbon skeleton having amino groups and etherified hydroxy groups bound to carbon atoms of six-membered aromatic rings of the same carbon skeleton having amino groups and etherified hydroxy groups bound to carbon atoms of non-condensed six-membered aromatic rings of the same non-condensed six-membered aromatic ring
- C07C217/90—Compounds containing amino and etherified hydroxy groups bound to the same carbon skeleton having amino groups and etherified hydroxy groups bound to carbon atoms of six-membered aromatic rings of the same carbon skeleton having amino groups and etherified hydroxy groups bound to carbon atoms of non-condensed six-membered aromatic rings of the same non-condensed six-membered aromatic ring the oxygen atom of at least one of the etherified hydroxy groups being further bound to a carbon atom of a six-membered aromatic ring, e.g. amino-diphenylethers
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- C07C271/00—Derivatives of carbamic acids, i.e. compounds containing any of the groups, the nitrogen atom not being part of nitro or nitroso groups
- C07C271/06—Esters of carbamic acids
- C07C271/08—Esters of carbamic acids having oxygen atoms of carbamate groups bound to acyclic carbon atoms
- C07C271/26—Esters of carbamic acids having oxygen atoms of carbamate groups bound to acyclic carbon atoms with the nitrogen atom of at least one of the carbamate groups bound to a carbon atom of a six-membered aromatic ring
- C07C271/28—Esters of carbamic acids having oxygen atoms of carbamate groups bound to acyclic carbon atoms with the nitrogen atom of at least one of the carbamate groups bound to a carbon atom of a six-membered aromatic ring to a carbon atom of a non-condensed six-membered aromatic ring
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C323/00—Thiols, sulfides, hydropolysulfides or polysulfides substituted by halogen, oxygen or nitrogen atoms, or by sulfur atoms not being part of thio groups
- C07C323/23—Thiols, sulfides, hydropolysulfides or polysulfides substituted by halogen, oxygen or nitrogen atoms, or by sulfur atoms not being part of thio groups containing thio groups and nitrogen atoms, not being part of nitro or nitroso groups, bound to the same carbon skeleton
- C07C323/31—Thiols, sulfides, hydropolysulfides or polysulfides substituted by halogen, oxygen or nitrogen atoms, or by sulfur atoms not being part of thio groups containing thio groups and nitrogen atoms, not being part of nitro or nitroso groups, bound to the same carbon skeleton having the sulfur atom of at least one of the thio groups bound to a carbon atom of a six-membered aromatic ring of the carbon skeleton
- C07C323/33—Thiols, sulfides, hydropolysulfides or polysulfides substituted by halogen, oxygen or nitrogen atoms, or by sulfur atoms not being part of thio groups containing thio groups and nitrogen atoms, not being part of nitro or nitroso groups, bound to the same carbon skeleton having the sulfur atom of at least one of the thio groups bound to a carbon atom of a six-membered aromatic ring of the carbon skeleton having at least one of the nitrogen atoms bound to a carbon atom of the same non-condensed six-membered aromatic ring
- C07C323/35—Thiols, sulfides, hydropolysulfides or polysulfides substituted by halogen, oxygen or nitrogen atoms, or by sulfur atoms not being part of thio groups containing thio groups and nitrogen atoms, not being part of nitro or nitroso groups, bound to the same carbon skeleton having the sulfur atom of at least one of the thio groups bound to a carbon atom of a six-membered aromatic ring of the carbon skeleton having at least one of the nitrogen atoms bound to a carbon atom of the same non-condensed six-membered aromatic ring the thio group being a sulfide group
- C07C323/36—Thiols, sulfides, hydropolysulfides or polysulfides substituted by halogen, oxygen or nitrogen atoms, or by sulfur atoms not being part of thio groups containing thio groups and nitrogen atoms, not being part of nitro or nitroso groups, bound to the same carbon skeleton having the sulfur atom of at least one of the thio groups bound to a carbon atom of a six-membered aromatic ring of the carbon skeleton having at least one of the nitrogen atoms bound to a carbon atom of the same non-condensed six-membered aromatic ring the thio group being a sulfide group the sulfur atom of the sulfide group being further bound to an acyclic carbon atom
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- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D417/00—Heterocyclic compounds containing two or more hetero rings, at least one ring having nitrogen and sulfur atoms as the only ring hetero atoms, not provided for by group C07D415/00
- C07D417/02—Heterocyclic compounds containing two or more hetero rings, at least one ring having nitrogen and sulfur atoms as the only ring hetero atoms, not provided for by group C07D415/00 containing two hetero rings
- C07D417/12—Heterocyclic compounds containing two or more hetero rings, at least one ring having nitrogen and sulfur atoms as the only ring hetero atoms, not provided for by group C07D415/00 containing two hetero rings linked by a chain containing hetero atoms as chain links
Definitions
- the present invention relates to a method for producing a 6-substituted 1-methyl-1H benzimidazole derivative and a production intermediate thereof.
- 6-substituted- 1-methyl-1-H benzimidazole derivatives have excellent insulin resistance-improving action, hypoglycemic action, anti-inflammatory action, immunoregulatory action, aldose reductase inhibitory action, 5-lipoxygenase inhibitory action
- those having lipid peroxide production inhibitory action, PPAR activation action, anti-osteoporosis action, leukotriene antagonism, adipogenesis promotion action, cancer cell proliferation inhibition action, calcium antagonism and the like are known.
- 6-substituted 1-methyl-1-H benzimidazole derivatives are a condensation reaction between a 4-substituted N 2 methylbenzene-1,2 diamine protected with an N-methylamino group and a corresponding carboxylic acid derivative. It is known that it can be synthesized by subsequent deprotection and intramolecular dehydration reaction (see, for example, Patent Documents 1 and 2).
- the 4-substituted N 2 methylbenzene 1,2 diamines in which the N-methylamino group is protected can be synthesized, for example, from N- (5-substituted 1-2 cyclohexyl) N-methylamines.
- N (5-substituted-2-trophenyl) -N-methylamines have been produced by using the halogen atom of N- (5-halogeno-2-trophenyl) -N-methylamines as a base.
- a method of substituting with a nucleophile in the absence or absence (Non-patent Document 1).
- the chlorine atom at the 2-position of 2,4 dichloro-trobenzene is substituted with methylamine.
- N— (5 black mouth 2 nitrophenol) -N methylamine is known (Patent Document 3).
- N (5-substituted-2 ditrophenyl)-N-methylamine is a highly active 6-substituted-1-methyl-1-hbenzimidazole derivative. Since it is a raw material for producing conductors, the development of a manufacturing method suitable for mass synthesis that is more industrially practical than the conventional manufacturing method is desired as a powerful manufacturing method for compounds.
- a method for producing a 6-substituted 1-methyl-1-H benzimidazole derivative from the obtained N- (5-substituted-2-trophenyl) -N-methylamines includes N- (5 Substituted 2- (Trophenyl) -N methylamine protected N- (5-substituted mono-2-aminophenyl) obtained by reducing the methylamino group and then reducing it.
- a production method is known (see Patent Document 2) Development of a production method for a 6-substituted 1-methyl-1-H benzimidazole derivative that is shorter and more efficient than 1S is desired.
- Patent Document 1 Japanese Patent Laid-Open No. 9-295970
- Patent Document 2 Japanese Patent Laid-Open No. 11-193276
- Patent Document 3 European Patent Application Publication No. 385850 Specification
- Non-Patent Document 1 Journal 'Ob' Medicinal Chemistry (U.S.) No. 39, p3971—3979 (1996)
- the present inventors have proposed 6-substituted-1-methyl-1-H benzimidazole derivatives (1), and N- (5-substituted 2-dinitrophenyl), which is a key intermediate in the production of these derivatives.
- N-methylamines (Ila) N- (5-substituted 2-trifluorophenol) N-methylamines (Ila) were obtained in high yield and high purity.
- a 2,4 dichroic-trobenzene was reacted with methylamine in an aprotic solvent to give N- (5 chlorodi-2-trophenyl) -N methylamine in the same container.
- N (5-substituted-2 ditrophyl) -N-methylamines (II) was found to be a method for the production of N (5-substituted 1-2 diphenyl) and N-methylamines (II).
- R 1 represents a nitro group, an amino group, or a t-butoxycarbolamino group.
- R 2 is a hydrogen atom
- a C C cycloalkyl group optionally substituted with a group
- heterocyclic group which may be substituted (the heterocyclic group contains 1 to 4 heteroatoms selected from nitrogen atom, oxygen atom and sulfur nuclear power)
- X is an oxygen atom, a sulfur atom or a nitrogen atom (the nitrogen atom is a hydrogen atom, a C C alkyl
- Substituent group ⁇ is c-c cycloalkyl group, C-C alkyl group, C-C alkyl group, C-C alkyl
- R 2 is a CC alkyl group or a substituent group a
- phenyl group which may be substituted with 1 to 3 groups which are also selected from a kill group and a non-methyl group (the substituent group ⁇ is an amino group, a C-C alkylamino group or a halogen group).
- R 2 and X represent the same meanings as R 2 and X in the above (2). And a method for producing a pharmacologically acceptable salt thereof,
- R 2 is a CC alkyl group or a substituent group a
- phenyl group which may be substituted with 1 to 3 groups which are selected from a kill group and a non-methyl group force (the substituent group ⁇ is an amino group, a C 1 -C alkylamino group or a halogen atom) Atomic
- R 2 is a CC alkyl group or a substituent group a
- phenyl group which may be substituted with 1 to 3 groups which are selected from a kill group and a non-methyl group force (the substituent group ⁇ is an amino group, a C 1 -C alkylamino group or a halogen atom) Atomic
- R 2 is a CC alkyl group or a substituent group a
- phenyl group which may be substituted with 1 to 3 groups which are selected from a kill group and a non-methyl group force (the substituent group ⁇ is an amino group, a C 1 -C alkylamino group or a halogen atom) Atomic
- R 1 represents a nitro group, an amino group, or a t-butoxycarbolamino group.
- the “halogen atom” is a fluorine atom, a chlorine atom, a bromine atom or an iodine atom.
- substituent group ⁇ a fluorine atom or a chlorine atom is preferable.
- C—C alkyl group means a straight or branched chain having 1 to 6 carbon atoms.
- R 2 is preferably a methyl, ethyl, propyl, isopropyl, butyl, isobutyl, sbutyl, or tbutyl group, and more preferably a methyl, ethyl, propyl, isopropyl, butyl, or isobutyl group. is there.
- the substituent of the nitrogen atom is preferably a methyl, ethyl, propyl or isopropyl group, and more preferably a methyl or ethyl group.
- " noromethyl group " is a methyl group substituted by 1 to 3 of the aforementioned " norogen atoms ", for example, fluoromethyl, difluoromethyl, trifluoromethyl, dichloromethane.
- a fluoromethyl group As a substituent of a 36 alkyl group, a phenol group, or a 5- or 6-membered heterocyclic group, a fluoromethyl group, a difluoromethyl group, a trifluoromethyl group, or a trichloromethyl group is preferable, and more preferably, It is a trifluoromethyl group.
- C—C alkyl group means a straight or branched chain having 2 to 6 carbon atoms.
- a chain alkyl group such as ether, 1 probe, 3 probe (or aryl), 2 methylpropene, 2 methylpropene, 3-yl (or methallyl), 1 — Butene—1—yl, 1—Butene—2—yl, 1—Butene—3—yl, 1—Butene—4—yl, 2—Butene 1 yl, 2—Butene 2—yl, 2 —Methyl-1-butene 1-yl, 2-Methyl-1-butene 3-yl, 2-Methyl-1-butene 4-yl, 3-Methyl 2 Butene 2-yl, 2-ethyl-1-butene 1-yl, 2,3 Dimethyl 2 — Butene—1—yl, 1—pentene—1—yl, 1—pentene—2—yl, 1—pentene—3 yl, 1—pentene—4—yl, 1—pentene—5— 2 pentene
- substituent group ⁇ a linear or branched alkenyl group having 2 to 5 carbon atoms is preferable, and ethenyl, 2 probe, or 3 probe group is more preferable. It is.
- C—C alkyl group means a straight or branched chain having 2 to 6 carbon atoms.
- Chain alkyl groups such as ethynyl, 1 probe, 3 propyl (or propargyl), 1-butyne 1-yl, 1-butyne 3-yl, 1-butyne 4-yl, 2-butyne 1- 1-pentyne-1-yl, 2-pentyne-1-yl, 3-methyl 1-pentine 1-yl, 1-hexine 1-yl, 2-hexyne-1-yl group.
- substituent group ⁇ a straight chain or branched alkyl group having 2 to 5 carbon atoms is preferable, and a ethynyl group, 1-propyl group or 3-propyl group is more preferable. is there.
- C C cycloalkyl group means a 3- to 6-membered saturated cyclic hydrocarbon group
- a cyclopropyl, cyclobutyl, cyclopentyl or cyclohexyl group For example, a cyclopropyl, cyclobutyl, cyclopentyl or cyclohexyl group.
- R 2 is preferably cyclopropyl, 1-methylcyclopropyl, 2,2 dimethylcyclopropyl, cyclobutyl, 3,3 dimethylcyclobutyl, cyclopentyl or cyclohexyl. It is a group.
- substituent group ⁇ a cyclopropyl, cyclobutyl, cyclopentyl or cyclohexyl group is preferable.
- C—C aryl group means an aromatic hydrocarbon having 6 to 10 carbon atoms.
- a phenyl, indul, or naphthyl group For example, a phenyl, indul, or naphthyl group.
- a phenyl group is preferable.
- “the same or different 1 to 4 heteroatoms for which nitrogen, oxygen and sulfur power are also selected” and “5- to 6-membered heterocyclic group” are, for example, 1H Lu 2 -yl, 1H pyrrole 3 -yl, 2 furyl, 3 furyl, 2 chael, 3 chael, 1H pyrazole-3 -yl, 1H pyrazole-4 -yl, 1H-imidazole 2-i 1H-imidazole 4-yl, 3-isoxazolyl, 4-isoxazolyl, 5-isoxazolyl, 2-oxazolyl, 4-oxazolyl, 5-oxazolyl, 3 isothiazolyl, 4 isothiazolyl, 5 isothiazolyl, 2 thiazolyl, 4 thiazolyl , 5 cheer Zolyl, 1H—1,2,3 Triazole-4 yl, 1H—1,2,3 Triazole-5 ill, 2H—1,2,3
- R 2 is preferably 2 furyl, 3 furyl, 2 cheenyl, 3 chael, 3-isoxazolyl, 4 isoxazolyl, 5 isoxazolyl, 2-oxazolyl, 4 oxazolyl, 5-oxazolyl, 3— Isothiazolyl, 4-isothiazolyl, 5-isothiazolyl, 2 thiazolyl, 4 thiazolyl, 5 thiazolyl, 2 pyridyl, 3 pyridyl, 4 pyridyl, 3 pyridazyl, 4 pyridadyl, 2 pyrimidyl, 4 pyrimidyl, 5 pyrimidyl, 2 —birazyl or 1, 3,5-triazine-2-yl group, and more preferably 2 furyl, 3 furyl, 2 chenyl, 3 chenyl, 3 isoxazolyl, 4 isoxazolyl, 5-isoxazolyl, 5-is
- the “C—C alkoxy group” means that the “C—C alkyl group” is an oxygen atom.
- a methoxy group is preferable.
- the “C—C aryloxy group” means that the “C—C aryl group” is an acid.
- the “C 1 -C alkyl carbonyl group” means a fat having 1 to 6 carbon atoms.
- Group hydrocarbon group bonded to a carbonyl group for example, acetyl, propionyl, butyryl, isobutyryl, pentanoyl, bivaloyl, valeryl or isovaleryl group.
- C-C alkyl carbo group is a halogen atom, a C-C alkoxy group.
- Such groups include, for example, halogenated alkyl carbonyl groups such as chloroacetyl, dichloroacetyl, trichloroacetyl and trifluoroacetyl; methoxyacetyl and the like.
- Unsaturated alkyl carbo group In the case where X is a nitrogen atom, the substituent of the nitrogen atom and the substituent group ⁇ are preferably a acetyl group or a propiol group, and more preferably a acetyl group.
- C C aryl group refers to the above “C C aryl group”.
- Is a group bonded to a carbonyl group for example, an aryl carbonate group such as benzoyl, a naphthoyl, ⁇ -naphthoyl, a lower alkyl chain such as 2,4,6 trimethylbenzoyl, or 4 toluoyl.
- An aromatic acyl group such as a carbonyl group may be mentioned.
- a benzoyl group is preferable.
- the "C C alkyl carbo-oxy group” is a group having 1 to 6 carbon atoms.
- a group bonded to an aliphatic hydrocarbon group or a hydrogen nuclear S carbonyloxy group for example, formyloxy, acetyloxy, propionyloxy, butyryloxy, isoptyryloxy, pentanoyloxy, bivalyloxy, valeryloxy or isovaleryloxy groups .
- C-C alkylcarboxoxy group is a halogen atom, C-C alcohol.
- Such groups include, for example, halogenated alkyl carbonyls such as chloroacetyloxy, dichloroacetyloxy, trichloroacetyloxy, trifluoroacetyl.
- (E) An unsaturated alkylcarbonyloxy group such as 2-methyl-2-butenoyloxy.
- substituent group ⁇ preferably an unsubstituted C—C alkyl carbo-
- a ruoxy group more preferably a formyloxy or acetyloxy group.
- C 1 -C arylcarbonyloxy group means the above “C—C aryl group”.
- 6 10 6 10 group is a group bonded to a carbo-loxy group, for example, benzoyloxy, a-naphthooxy or ⁇ -naphthooxy group.
- C-C arylcarboxoxy group is substituted with a C-C alkyl group.
- Such a group may be, for example, a C—C alkylated arylcarboloxy group such as 2,4,6 trimethylbenzoyloxy, 4-toluoyloxy.
- the “C 1 -C alkyl sulfol group” is a group in which the “C—C alkyl group” is bonded to a sulfol group, and examples thereof include methane sulfone and ethane sulfone.
- substituent group ⁇ a linear or branched alkanesulfol group having 1 to 4 carbon atoms is preferable, and a methanesulfol group is more preferable.
- the substituent for the nitrogen atom of X is preferably a methanesulfol group.
- the “C—C arylol group” means the “C—C aryl group”.
- sulfol groups such as benzenesulfol, p-toluenesulfol, ⁇ -naphthalenesulfol, and 13-naphthalenesulfol groups.
- substituent group a a benzenesulfol group is preferable.
- C—C alkoxycarbo group refers to the above “C—C alkoxy group”.
- ⁇ 1 6 1 6 group '' is a group bonded to a carbonyl group, for example, methoxycarbon, ethoxycarbonyl, n-propoxycarbonyl, isopropoxycarbonylolebonole, n-butoxycarbonyl, isobutoxycarbonyl, s-butoxycarbonyl , Tert butoxycarbonyl, n-pentoxycarbonyl, isopentoxycarbonyl, 2-methylbutoxycarbonyl, neopentoxycarbonyl, n-hexyloxycarbonyl, 4-methylpentoxycarbonyl, 3-methylpentoxycarbonyl , 2-methylpentoxycarbonyl, 3,3 dimethylbutoxycarbonyl, 2,2-dimethylbutoxycarbonyl, 1,1 dimethylbutoxycarbonyl, 1,2-dimethylbutoxycarbonyl, 1,3 dimethylbutoxycarbonyl, 2,3 dimethyl
- C 1 -C aryloxycarbonyl group refers to the above “C 1 -C aryloxy group”.
- 6 10 6 10 oxy group is a group bonded to a carbo ol group, for example, a phenoxy carbo ol, a naphthalenoxy carbo ol, or a 13 naphthal oxy carboxy group.
- a phenoxycarbon group is preferred.
- N—C 1 -C alkyl strength ruberamoyl group means the above “C 1 -C alkyl group”.
- ⁇ 1 6 1 6 kill group '' is a group bonded to the nitrogen atom of force rubamoyl group, for example, N methylcarbamoyl, N ethylcarbamoyl, N propyl force rubamoyl, N isopropyl force rubamoyl, N butylcarbamoyl, N isobutylcarbamoyl, N—s butyl, rubamoyl, N—t-butylcarbamoyl, N pentylcarbamoyl, N isopentylcarbamoyl, N—s pentylcarbamoyl, N—t pentylcarbamoyl, N neopentylcarbamoyl, N hexylcarbamoyl groups.
- a ⁇ -methylcarbamoyl or ethylcarbamoyl group is preferable.
- ⁇ , — di-C-C alkyl-powered rubermoyl group A group obtained by substituting two identical or different “CC alkyl groups” on the nitrogen atom of the group;
- ⁇ , ⁇ ⁇ ⁇ dimethylcarbamoyl, ⁇ , ⁇ jetylcarbamoyl, ⁇ , ⁇ -dipropyl-powered rubermoyl, ⁇ , ⁇ -diisopropyl-powered rubermoyl group for example, ⁇ , ⁇ ⁇ ⁇ ⁇ dimethylcarbamoyl, ⁇ , ⁇ jetylcarbamoyl, ⁇ , ⁇ -dipropyl-powered rubermoyl, ⁇ , ⁇ -diisopropyl-powered rubermoyl group.
- substituent group ⁇ preferred are ⁇ , ⁇ ⁇ ⁇ ⁇ dimethylcarbamoyl or ⁇ , ⁇ jetylcarbamoyl groups.
- the "C-C alkylamino group” is a group in which the "C-C alkyl group” is bonded to an amino group, such as methylamino, ethylamino-containing n-propylamino-containing isopropylamido.
- n-Butylamino with isobutylamis s Butylami with tert-Butylamine with n Pentylami with Isopentylami with 2-Methylbutylami with Neopentyl with 1 Ethylpropylami n With xylami in Isohexylami with 4 Methylpentylamino, 3- Methylpentylamino, 2-methylpentylamino, 1-methylpentylamino, 3, 3 with dimethylbutylamid 1,2 with dimethylbutylamid 1,1 with dimethylbutylamid 1,2 with dimethylbutylamid 1,3 with dimethylbutylamid 2, 3 dimethylbutylamino, 2-ethylbutylamino group.
- substituent group ⁇ a methylamino, ethylamino, propylamino or isopropylamino group is preferable.
- the “di-C 1 -C alkylamino group” is the same as or different from the amino group.
- C 1 -C alkyl group is a group substituted by two, for example, ⁇ , ⁇ dimethylamino,
- the “C—C aryl group” means that the “C—C aryl group” is amino.
- a group bonded to a benzene group for example, a phenylamine-containing induramide-containing naphthylamino group. It is.
- a furamino group is preferable.
- the "di-C-C arylamino group" is the same as or different from the amino group.
- C—C arylamino group is a group substituted by two, for example, ⁇ , ⁇ -diphenyl
- C-C alkylthio group means that the "C-C alkyl group” is a sulfur group.
- a group bonded to a yellow atom for example, methylthio, ethylthio, t-ptylthio group.
- substituent group a a methylthio group is preferable.
- the “C—C aryl group” means that the “C—C aryl group” is sulfur.
- a group bonded to a yellow atom for example, phenolthio, ⁇ -naphthalenio, ⁇ naphthalenio group.
- substituent group ⁇ a phenylthio group is preferred.
- C—C alkyl sulfier group means the above “C—C alkyl group”.
- 1 6 1 6 '' is a group bonded to a sulfiel group, for example, methyl sulfiel, ethyl sulfite
- the “C—C aryl sulfel group” means the “C—C aryl group”.
- Is a group bonded to a sulfiel group for example, a phenylsulfur group, a naphthalenesulfuryl group, or a ⁇ naphthalenesulfuric group.
- a phenylsulfyl group is preferred.
- R 2 represents a C—C alkyl group having a substituent
- the number of substituents is 1 to 5
- the number is preferably 1 to 3, and more preferably 1 to 2.
- R 2 represents a C—C alkyl group having a substituent, and the number of the substituents is 2 or more
- the substituents may be the same as or different from each other.
- R 2 represents a substituted phenyl group or a heterocyclic group
- the number of substituents is 1 to 5, preferably 1 to 4, more preferably 1 to 3. is there.
- R 2 represents a phenyl group or a heterocyclic group having a substituent, and the number of the substituents is 2 or more, the substituents may be the same as or different from each other.
- R 2 is preferably a C—C alkyl group or a substituent group ⁇ , C—C alkyl group. And a phenyl group (the substituent group ⁇ is an amino group, a C—C alkylamino group or a halogen atom). )
- X is preferably an oxygen atom or a nitrogen atom (the nitrogen atom is a hydrogen atom, a CC atom)
- 1 6 may be substituted with a kill carbonyl group or a C C aryl carbonyl group.
- “Pharmaceutically acceptable salt thereof” means that the compound having the general formula (I) of the present invention has a basic group such as an amino group by reacting with an acid, or If it has an acidic group such as a carboxyl group, it can be converted into a salt by reacting with a base, so that salt is shown.
- the salt based on a basic group is preferably a hydrohalide salt such as hydrochloride, hydrobromide, hydroiodide, nitrate, perchlorate, sulfate, phosphate.
- Inorganic acid salts such as methane sulfonate, trifluoromethane sulfonate, lower alkane sulfonate such as ethane sulfonate, benzene sulfonate, aryl sulfonate such as ⁇ -toluene sulfonate , Acetate, malate, fumarate, succinate, succinate, ascorbate, tartrate, succinate, maleate and other organic acid salts; or glycine salt, lysine salt, arginine Amino acid salts such as salts, orthine salts, glutamates and aspartates, and preferably hydrochlorides.
- the salt based on an acidic group is preferably an alkali metal salt such as sodium salt, potassium salt or lithium salt, an alkaline earth metal salt such as calcium salt or magnesium salt, an aluminum salt, iron Metal salts such as salts; inorganic salts such as ammonium salts, toctylamine salts, dibenzylamine salts, morpholine salts, darcosamine salts, glycine alkyl ester salts, ethylenediamine salts, N-methyl darcamamine salts, gua -Gin salt, Jetylamine salt, Triethylamine salt, Dicyclohexylamine salt, N, N, Monodibenzylethylenediamine salt, Black mouth salt, Pro strength salt, Diethanolamine salt, N Benzylphenylamine salt, Organic salts such as piperazine salt, tetramethylammonium salt, tris (hydroxymethyl) amino methane salt, etc.
- alkali metal salt such as sodium salt, potassium salt or lithium salt
- an amino acid salt such as glycine salt, lysine salt, arginine salt, ornithine salt, glutamate salt, and aspartate salt.
- suitable compounds include exemplified compounds Nos. 1 to 17, 21, 23, 28, 30, 32, 34, 36, 37, 38, 47, 49, 52, 57, 59, 61, 68, 70, 73, 75, 77, 87, 97, 113, 118, 120, 122, 130, 133, 136, 150, 152, 136, 158, 162, 163, 165 to 169, 172 to 175, 177, 180, 181, 184, 191, 193, 195, 196, 198, 202, 204, 205, 207 to 211, 212 , 213, 221, 223, 23 4 to 236, 239, 241, 243, 247, 253, 257, 259, 260, 261, 263, 274, 282, 284, 287, 289, 290, 291
- the f column number is 1, 2, 4, 30, 34, 37, 47, 68, 75, 136, 163, 165, 167, 169, 175, 184, 195, 202, 205, 207, 208, 209, 210, 211, 213, 257, 260, 282, 291
- Illustrative compound number 211 (N [5— (3,5 dimethyl 4 -trophenoxy) 2 -tropheninole] 2— ⁇ 4 [2,4 dioxo1,3 thiazolidine 5 yl] methyl ⁇ phenoxy ⁇ N— Methylacetamide).
- the present invention provides novel production intermediates (Ila) and (III) of 6-substituted-1-methyl-1-H benzimidazole derivatives (I), which are known pharmaceutically active ingredients. Furthermore, a production intermediate, a production method for obtaining N- (5-substituted 2-trophenyl) N-methylamines (II) with high yield and high purity, and a large-scale synthesis of the production intermediate (II) Providing manufacturing methods suitable for By using the production method of the present invention, it is possible to easily produce a production intermediate ( ⁇ ) from a raw material compound in a one-pot with a high yield. Thus, it can be produced by a simple operation using an inexpensive reagent.
- the 6-substituted 1-methyl-1-H benzimidazole derivative (I) also undergoes N- (5-substituted-2-aminophenol) N-methylamine, which requires a conventional methylamino protection reaction.
- N— (5-substituted-2-trifluoro) -N-methylamines (II) which can be produced by the method of the present invention, are efficiently produced in a short process without carrying out a protective reaction. Is possible.
- the compound ( ⁇ ) can be produced, for example, by the following method.
- compound (Ila) which is a novel production intermediate, is selected from compounds (I) in which R 2 is selected from substituent group 0; C—C alkyl group and halomethyl group 1 to Replace with 5 groups
- a compound which is a phenyl group which may be substituted more specifically, a compound in which R 2 is substituted with 4-substituted-3,4-dimethylphenol 4 file. It is an included compound.
- Compound (Ila) is produced according to the following method for producing compound (ii). More specifically, in the second step described later, N- (5 chloro-2-trophenyl) N-methylamine is It can be produced by reacting with a compound represented by the following general formula (V), which is a hydroxyaryl, and this reaction will be described later in particular as Step 2a.
- R 2 and X have the same meaning as described above.
- the method of the present invention comprises the step of reacting compound 2,4 dichroic-trobenzene with methylamine to produce N- (5-chromophoric 2-trophenyl) -N methylamine.
- N- (5-chromophoric 2-trophenyl) -N methylamine 5 Black-and-white 2) 2-N-methylamine Water, alcohols, phenols, hydrogen sulfide, mercaptans, ammonia, amines or amides without isolation
- This is the second process for producing the reaction product (i).
- you want to isolate N (5-chromol 2-trophenyl) 1-N-methylaline produced in the first step for example, follow the method described in Patent Document 3. Can do.
- the first step and the second step will be described in detail.
- the first step is the step of producing N- (5 chloro-2-trophenyl) N-methylamine by reacting compound 2,4 dichloro-trobenzene with methylamine in an inert solvent under normal pressure. .
- the compounds 2,4 dichroo-trobenzene, methylamine, and N- (5 chloro-2 ditrophenyl) N-methylamine are dissolved to a certain degree and reacted.
- a solvent include ethers such as jetyl ether, diisobutyl ether, dibutyl etherol, tert-butenoremethinoleethenore, cyclopropinoremethinoleethenore, dimethylenocererosonoleb, tetrahydrofuran, or dioxane.
- Amides such as dimethylformamide, dimethylacetamide, ⁇ , ⁇ dimethylimidazolidinone, or hexamethylphosphoric triamide; sulfoxides such as dimethyl sulfoxide or sulfolane; or a mixed solvent thereof, preferably ethers Amides, or sulfoxides, and more preferably tetrahydrofuran, dimethylformamide, dimethylacetamide, or dimethylenosenoreoxide.
- Methylamine used in this step is added as a gas or as a solution.
- the solvent is not particularly limited as long as it can dissolve methylamine.
- examples of such a solvent include water, methanol, ethanol, propanol, isopropyl alcohol, butanol, isobutyl alcohol, t-butyl alcohol, and methyl solvate; alcohols such as pentane, hexane, heptane, octane, isootatan, Hydrocarbons such as petroleum ether, cyclohexane, methylcyclohexane, ethylcyclohexane, benzene, toluene, xylene, or mesitylene; jetyl ether, diisobutyl ether, dibutyl ether, t-butyl methyl ether, cyclopropyl methyl ether, dimethyl ether Ethers such as oral sorb,
- a methylamine solution when used, its concentration is not particularly limited, but is usually 1% to saturated solution, preferably 10% to saturated solution, and more preferably
- the amount of methylamine used in this step is not particularly limited as long as it is 1 equivalent or more with respect to the compound (I) to be used, but is preferably 1 to 10 equivalents, more preferably. 3 to
- the reaction temperature in this step is not particularly limited, but is usually 0 ° C to reflux temperature, preferably room temperature to 120 ° C, and more preferably 40 ° C to 90 °. C.
- the normal pressure in this step may be a force indicating atmospheric pressure, which may be lower or higher than atmospheric pressure depending on the structure of the reaction vessel or the like. There is no limit to this pressure, but usually 0.5 to 1
- 0 atm preferably 0.9 to 2 atm.
- the reaction time in this step is not particularly limited, but is usually 15 minutes to 24 hours, preferably 15 minutes to 6 hours, and more preferably 30 minutes to 3 hours.
- the second step is continued without post-treatment.
- the second step is carried out following the first step without isolating the N- (5-chloro-2-phenyl) -1-N-methylaline produced in the first step.
- the second step consists of water, alcohols, hydroxyaryls, hydrogen sulfide, mercapts in the presence of a base that isolates N- (5 chloro-2-trifluoro) N-methylaline. This is a step of reacting with tans, ammonia, amines, or amides to produce compound (ii).
- the inert solvent used in the first step is used as it is.
- the base used in this step can be converted into a salt by reacting with water, alcohols, hydroxyaryls, hydrogen sulfide, mercaptans, ammonia, amines, or amides! Let things react directly.
- the amount of the base used in this step is usually 1 to 2 equivalents relative to the water, alcohols, hydroxyaryls, hydrogen sulfide, mercaptans, ammonia, amines or amides used. , Preferably 1 to 1.6 equivalents, more preferably 1.2 equivalents
- the alcohol used in this step has a substituent! /, But may be linear or branched C
- the hydroxyaryls used in this step are not particularly limited.
- mercaptans used in this process, but examples include methyl mercaptan, ethyl mercaptan, propyl mercaptan, isopropyl mercaptan, butyl mercaptan, isobutyl mercaptan, s-butyl mercaptan, t-butyl mercaptan, pentyl mercaptan.
- the amines used in this step are not particularly limited.
- the amides used in this step are not particularly limited.
- the reaction temperature in this step is not particularly limited, but is usually 0 ° C to reflux temperature, preferably room temperature to 180 ° C, more preferably 40 ° C to 150 ° C.
- the reaction time in this step is not particularly limited, but is usually 15 minutes to 24 hours, preferably 15 minutes to 6 hours, and more preferably 30 minutes to 3 hours.
- the product is made acidic, neutral, or basic according to the physical properties of the compound (ii), and then is extracted, isolated by filtration, etc. Perform the operation. After isolation, the product may be used as it is, or may be used after purification by a usual purification method such as distillation, recrystallization, sublimation, distribution, or chromatography, if necessary.
- the yield of the target compound (I) may be reduced or the purity may be reduced.
- the by-product of impurities is suppressed, and the target compound (I) can be obtained in high yield and high purity by a simple operation.
- the antioxidant is not particularly limited as long as it has an antioxidant effect, but 2,4 di-tert-butyl-4-methylphenol is preferable (Step 2a).
- Step 2a is a step for producing compound (Ila), which is a novel production intermediate of the present invention, and is isolated N (5-chloro 1-trophenyl) 1 N-methylaline or Compound (V), which is one of the hydroxyaryls in the presence of a base, without isolating N- (5-chloro 2-tert-phenyl) -N-methylaline produced in the first step:
- step of producing the compound (Ila) by reacting with is described, and can be carried out according to the method described in the second step.
- the base used in this step may be reacted directly with compound (V) to react directly as a salt.
- the amount of the base used in this step is generally 1 to 2 equivalents, preferably 1 to 1.6 equivalents, more preferably 1.2 equivalents, relative to the compound) as in the second step described above. Is equivalent.
- the reaction temperature in this step is not particularly limited, but is usually 0 ° C to reflux temperature, preferably room temperature to 180 ° C, more preferably 40 ° C to 150 ° C.
- reaction time in this step is not particularly limited, but is usually 15 minutes to 24 hours, preferably 15 minutes to 6 hours, and more preferably 30 minutes to 3 hours.
- the product is made acidic, neutral, or basic according to the physical properties of the compound (Ila), followed by isolation such as extraction and filtration. Perform the operation. After isolation, the product may be used as it is, or may be used after purification by a usual purification method such as distillation, recrystallization, sublimation, fractionation, or chromatography, if necessary. Good.
- oxidizing impurities may be by-produced, and the yield of the target compound (I) may be reduced or the purity may be reduced.
- the target compound (I) can be obtained in high yield and high purity by a simple operation.
- the antioxidant is not particularly limited as long as the antioxidant effect is recognized, but 2,4-di-tert-butyl 4-methylphenol is preferable.
- R 2 and X have the same meaning as described above.
- the third step is a step for producing the compound (III) of the present invention by condensing the compound ( ⁇ ) and 4-[(2,4 dioxothiazolidine mono-5-yl) methyl] phenoxyacetic acid. .
- This step is performed by an acid halide method, an active esterification method, or a mixed acid anhydrous method, which will be described in detail below.
- the halogenating agent used in the halogenation reaction is not particularly limited as long as it can convert a carboxylic acid into an acid norogenate.
- a halogenating agent include chlorothionyl, thionyl bromide, chlorooxalyl, phosphorus oxychloride, phosphorus trichloride, pentachloride phosphorus, and preferably Thionyl, chlorooxalyl, and phosphorus pentachloride are preferred, and chlorothionyl is particularly preferred.
- the amount of the halogenating agent used in the halogenation reaction is not particularly limited as long as it is 1 equivalent or more with respect to the 4-[(2,4-dioxothiazolidine-5-yl) methyl] phenoxyacetic acid used.
- the force is preferably 1 to 2 equivalents, more preferably 1 to 1.2 equivalents.
- the inert solvent used is not particularly limited as long as it does not inhibit the reaction.
- solvents include aliphatic hydrocarbons such as hexane, heptane, lignin, or petroleum ether; aromatic hydrocarbons such as benzene, toluene, and xylene; acetonitrile, propio- -Tolyls such as tolyl and benzo-tolyl; halogenated hydrocarbons such as dichloromethane, chloroform, 1,2-dichloroethane and carbon tetrachloride; jetyl ether, diisopropyl ether, tetrahydrofuran, dioxane, dimethoxyethane, Ethers such as diethylene glycol dimethyl ether; amides such as formamide, dimethylformamide, dimethylacetamide, hexamethylphosphoric triamide; sulfoxides such as dimethyl sulfoxide; sulfolane,
- the halogenation reaction may proceed more rapidly by adding a catalyst.
- a tertiary amine When an amine is used, a tertiary amine is usually used.
- Trialkylamines such as trimethylamine, triethylamine, diisopropylethylamine or tributylamine; dialkylamines such as ⁇ ⁇ , ⁇ dimethylamine, ⁇ , ⁇ jetylamine; or diphenylmethylamine Diallylalkylamines.
- Examples of the derivatives of amin include ⁇ , ⁇ -dialkylamides such as dimethylformamide and dimethylacetamide.
- Examples of the nitrogen-containing heterocyclic compound include pyridine, ⁇ , ⁇ ⁇ ⁇ ⁇ dimethyl-4-aminoviridine, imidazole, and triazole.
- trimethylamine triethylamine, diisopropylethylamine, tribubutylamine, ⁇ , ⁇ dimethylamine, dimethylformamide, dimethylacetamide, pyridine, or ⁇ , ⁇ dimethyl-4-aminoviridine More preferred is triethylamine, dimethylformamide, pyridine or ⁇ , ⁇ dimethyl-4-aminoviridine, and particularly preferred is dimethylformamide.
- the amount of the catalyst to be used is not particularly limited, but is usually 0.01 to 20 equivalents, preferably 0.1 to 10 equivalents, and more preferably 0.3 to 5 equivalents with respect to the halogenating agent to be used. This is the amount.
- the reaction temperature in this step varies depending on the raw material compounds, reagents and the like, but is usually -20 ° C to 150 ° C, preferably -10 ° C to 100 ° C, and more preferably Is 10 to 40 ° C.
- reaction time of the halogenation reaction varies depending on the raw material compounds, reagents, reaction temperature, and the like, but is usually 30 minutes to 80 hours, preferably 30 minutes to 48 hours, and more preferably. 1 hour to 6 hours.
- the halogenated 4 [(2,4 dioxothiazolidine 5 yl) methyl] phenoxycetyl or its salt may be isolated and then subjected to an amidation reaction.
- the amidation may be carried out without isolation.
- the amidation reaction should be carried out without isolation.
- the amid ⁇ reaction is a process for producing the compound (III), and the halogenated 4-[(2,4 dioxothiazolidine-1-yl) methyl] phenoxyacetyl is not reacted with the compound ( ⁇ ). In an active solvent, This is achieved by reacting.
- the reaction when a base is used, the reaction may proceed rapidly.
- examples of the base used include alkali metal carbonates such as lithium carbonate, sodium carbonate, and potassium carbonate, alkali metal heavy metals such as lithium hydrogen carbonate, sodium hydrogen carbonate, and hydrogen hydrogen carbonate.
- Alkali metal hydrides such as lithium hydride, sodium hydride, and hydrogen hydride
- Alkali metal hydroxides such as lithium hydroxide, sodium hydroxide, and hydrium hydroxide
- Lithium methoxy Alkali metal alkoxides such as sodium methoxide, sodium methoxide, potassium t-butoxide
- Organic amines such as, preferably organic amines, and more preferably tri
- the amidation reaction is usually performed in an inert solvent.
- the inert solvent is not particularly limited as long as it does not inhibit the reaction.
- Such inert solvents include, for example, hexane, heptane, lignin, or aliphatic hydrocarbons such as petroleum ether; aromatic hydrocarbons such as benzene, toluene, xylene; -Tolyls such as propio-tolyl and benzo-tolyl; halogenated hydrocarbons such as dichloromethane, chloroform, 1,2-dichloroethane and carbon tetrachloride; jetyl ether, diisopropyl ether, tetrahydrofuran, dioxane , Ethers such as dimethoxyethane, diethylene glycol dimethyl ether; amides such as formamide, dimethylformamide, dimethylacetamide, hexamethylphosphoric triamide; sulfoxides such as dimethyl
- the reaction temperature of the amidation reaction varies depending on the raw material compounds, reagents and the like, but is usually 20 ° C to 150 ° C, and preferably -20 ° C to 100 ° C.
- reaction time of the amidation reaction varies depending on the raw material compounds, reagents, reaction temperature, etc.
- the active esterification method involves reacting 4 [(2,4-dioxothiazolidine mono-5-yl) methyl] phenoxyacetic acid with an active esterifying agent in an inert solvent in the presence or absence of a base. Then, an active ester is produced and reacted with compound (II) to produce compound (III).
- the active esterifying agent used in the active esterification method is, for example, an N-hydroxy compound such as N hydroxysuccinimide, 1-hydroxybenztriazole, or N-hydroxy-5 norbornene-2,3-dicarboxylimide.
- N-hydroxy compound such as N hydroxysuccinimide, 1-hydroxybenztriazole, or N-hydroxy-5 norbornene-2,3-dicarboxylimide.
- Disulfide compounds such as dipyridyldisulfide; carbodiimides such as dicyclohexylcarbodiimide; or condensing agents such as carbodiimidazole and triphenylphosphine.
- the inert solvent used in the active esterification method is not particularly limited as long as it does not inhibit the reaction.
- solvents include aliphatic hydrocarbons such as hexane, heptane, lignin, or petroleum ether; aromatic hydrocarbons such as benzene, toluene, and xylene; acetonitrile, propio- -Tolyls such as tolyl, benzo-tolyl; halogenated hydrocarbons such as dichloromethane, chloroform, 1,2-dichloroethane, carbon tetrachloride; jetyl ether, diisopropyl ether, tetrahydrofuran, dioxane, dimethoxy Ethers such as ethane, diethylene glycol dimethyl ether; amides such as formamide, dimethylformamide, dimethylacetamide, hexamethylphosphoric triamide; sulfoxides such as dimethyl sulfoxide
- halogeni Hydrocarbons particularly preferred are acetonitrile, dichloromethane, chloroform, tetrahydrofuran, dioxane, dimethylformamide, or mixtures thereof, and particularly preferred. Is tetrahydrofuran, dioxane, or acetonitrile.
- a base when used in the active esterification method, it may be used in the acid halide method described above. Similar bases can be used.
- reaction temperature of the active ester method varies depending on the raw material compounds, reagents, etc.
- ° C to 150 ° C preferably -20 ° C to 100 ° C.
- reaction time of the active esterification method varies depending on the raw material compounds, reagents, reaction temperature, etc., but is usually 10 minutes to 80 hours, preferably 30 minutes to 12 hours.
- the mixed acid anhydride method consists of 4-[(2,4-dioxothiazolidine 5-yl) methyl] phenoxyacetic acid and mixed acid anhydrides in an inert solvent in the presence or absence of a base. To produce a mixed acid anhydride and react with compound (II) to produce compound (III).
- the mixed acid anhydride agent used in the mixed acid anhydride method includes, for example, halogenated alkanols such as acetyl chloride or bivaloyl chloride; methyl ester carbonate, ester carbonate, or carbonate carbonate phenol And cyanophosphoric acids such as cyanophosphonic acid such as dimethyl cyanophosphonate and diphenyl cyanophosphonic acid.
- halogenated alkanols such as acetyl chloride or bivaloyl chloride
- cyanophosphoric acids such as cyanophosphonic acid such as dimethyl cyanophosphonate and diphenyl cyanophosphonic acid.
- the inert solvent used in the mixed acid anhydride method is not particularly limited as long as it does not inhibit the reaction.
- solvents include aliphatic hydrocarbons such as hexane, heptane, lignin, or petroleum ether; aromatic hydrocarbons such as benzene, toluene, and xylene; acetonitrile, propio- -Tolyls such as tolyl, benzo-tolyl; halogenated hydrocarbons such as dichloromethane, chloroform, 1,2-dichloroethane, carbon tetrachloride; jetyl ether, diisopropyl ether, tetrahydrofuran, dioxane, dimethoxy Ethers such as ethane, diethylene glycol dimethyl ether; amides such as formamide, dimethylformamide, dimethylacetamide, hexamethylphosphoric triamide; sulfoxides such as dimethyl sulfox
- halogeni Hydrocarbons particularly preferred are acetonitrile, dichloromethane, chloroform, tetrahydrofuran, dioxane, dimethylformamide, or mixtures thereof, and particularly preferred. Is tetrahydrofuran, dioxane, or acetonitrile.
- the reaction temperature of the mixed acid anhydride method varies depending on the raw material compounds, reagents, and the like, but is usually 70 ° C to 150 ° C, and preferably 20 ° C to 100 ° C.
- reaction time of the mixed acid anhydride method varies depending on the raw material compounds, reagents, reaction temperature, and the like, but is usually 10 minutes to 80 hours, preferably 30 minutes to 12 hours.
- (III) is separated from the reaction mixture by an operation such as extraction and natural crystallization after a normal post-treatment and neutralization as necessary.
- the obtained compound (III) may be used as it is in the next step, or may be used after purification by a usual purification method such as recrystallization, reprecipitation, chromatography or the like, if necessary. .
- the -tro group of compound (III) is reduced in a solvent, and then dehydrocondensation is carried out in the molecule to produce a pharmacologically acceptable salt of compound (I). It is a process and proceeds via compound (IV) as an intermediate!
- the reduction of the nitro group in this step is a force capable of using a method generally known as a method of reducing the nitro group.
- the reduction is performed by catalytic hydrogenation.
- the catalyst used in this step is not particularly limited as long as it is usually used for catalytic hydrogenation.
- a catalyst for example, a palladium-carbon catalyst, a platinum-carbon catalyst, Raney nickel, a Wilkinson complex and the like are used, and preferably a palladium carbon catalyst or a platinum carbon catalyst.
- the hydrogen pressure in this step is not particularly limited as long as it is 1 atm or higher, but it is usually 1 to 20 atm, and preferably 1 to 10 atm.
- the solvent used in this step is not particularly limited as long as it dissolves compound (III) to some extent and does not inhibit the reaction.
- solvents include aliphatic hydrocarbons such as hexane, heptane, lignin, petroleum ether, cyclohexane, and methylcyclohexane; aromatic hydrocarbons such as benzene, toluene, and xylene.
- Carboxylic acids such as acetic acid; carboxylic acid esters such as ethyl acetate and butyl acetate; -Tolyls such as pio-tolyl, benzo-tolyl; ethers such as jetyl ether, diisopropyl ether, tetrahydrofuran, dioxane, dimethoxyethane, diethylene glycol dimethyl ether; formamide, dimethylformamide, dimethylacetamide, hexamethylphosphoric acid Amides such as triamide; and mixtures thereof, preferably alcohols, carboxylic acids, carboxylic esters, nitriles, ethers or amides, and mixtures thereof, and more preferably Is methanol, carboxylic acid esters, acetonitrile, tetrahydrofuran, dimethylacetamide or a mixture thereof, and particularly preferably methanol or a mixed solvent of methanol and dimethylacetamide.
- carboxylic acid esters
- reaction may be promoted by adding an acid in this step.
- an acid may be added to obtain a pharmacologically acceptable salt of compound (I) as it is.
- the acid to be added is not particularly limited.
- organic acids such as hydroxyacetic acid, oxalic acid, and citrate; or halogenated salts such as hydrochloric acid and bromic acid are used.
- Hydroacids are used, preferably hydrochloric acid.
- the amount of the acid to be added is not particularly limited, but is usually 1 to 100 equivalents, preferably 1 to 10 equivalents, relative to compound (IV). .
- the reaction temperature of this step is not particularly limited, but is usually 0 ° C to 150 ° C, preferably room temperature to 100 ° C.
- the product After completion of the reaction in this step, after the post-treatment, the product is made acidic, neutral or basic according to the physical properties of the product, and then subjected to an isolation operation. After isolation, the product may be purified as it is, or may be purified by a conventional purification method such as recrystallization or chromatography, if necessary.
- the obtained target product showed a nuclear magnetic resonance spectrum similar to that shown in Example 1.
- N- [5- (4 amino 3,5 dimethylphenoxy) 2 -trophenyl] -N-methylamine obtained in Example 5 was added to a solution of 40.00 g of toluene (400 ml) at room temperature at 21.13 g of triethylamine.
- Di-t-butyl dicarbonate (33.42 g) was added and refluxed for 3 hours.
- TButyl dicarbonate 12.15g and triethylamine 7.04g were added and refluxed for another 2 hours.
- the organic layer is washed 3 times with 100 ml of 10% hydrochloric acid, then twice with 60 ml of 20% hydrochloric acid, then twice with 100 ml of 5% aqueous sodium bicarbonate, and finally with 100 ml of water. Washed with.
- the obtained organic layer was stored refrigerated for a whole day and night, and hexanecyclohexane (12 Oml) was added thereto, followed by stirring at 0 ° C. for 1 hour.
- the precipitated crystals were separated by filtration and washed with 0 ° C toluene-ethylcyclohexane (1: 4, 100 ml).
- the obtained crystals were dried at 40 ° C. under reduced pressure to obtain 48.79 g of the target compound (yield 91%).
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Description
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Priority Applications (8)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US11/664,140 US7816552B2 (en) | 2004-09-28 | 2005-09-26 | Intermediate of 6-substituted 1-methyl-1-H-benzimidazole derivative and method for producing same |
| BRPI0516192-4A BRPI0516192A (pt) | 2004-09-28 | 2005-09-26 | composto, e, método para a preparação de um composto |
| EP05785694A EP1798216A4 (en) | 2004-09-28 | 2005-09-26 | INTERMEDIATE PRODUCT OF A 6-SUBSTITUTED 1-METHYL-1H-BENZIMIDAZOLE DERIVATIVE AND METHOD FOR THE PRODUCTION THEREOF |
| CN2005800327991A CN101068770B (zh) | 2004-09-28 | 2005-09-26 | 制备6-取代的-1-甲基-1-h-苯并咪唑衍生物的方法及其合成中间体 |
| CA2580973A CA2580973C (en) | 2004-09-28 | 2005-09-26 | Intermediate of 6-substituted 1-methyl-1-h-benzimidazole derivative and method for producing same |
| IL181988A IL181988A (en) | 2004-09-28 | 2007-03-18 | N - (phenyl preserved in position 5 and converted in nitro in position 2) Reliable and methods for preparing h - benzimidazole in methyl in position 1 and also used in position 6 |
| US12/800,612 US8106079B2 (en) | 2004-09-28 | 2010-05-19 | Intermediate of 6-substituted-1-methyl-1-H-benzimidazole derivative and method for producing same |
| IL213615A IL213615A (en) | 2004-09-28 | 2011-06-16 | N - History (phenyl preserved in position 5 and converted in nitro in position 2) Reliable and methods for making h - benzimideol preserved in methyl in position 1 and also used in position 6 |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2004282064 | 2004-09-28 | ||
| JP2004-282064 | 2004-09-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| US11/664,140 A-371-Of-International US7816552B2 (en) | 2004-09-28 | 2005-09-26 | Intermediate of 6-substituted 1-methyl-1-H-benzimidazole derivative and method for producing same |
| US12/800,612 Division US8106079B2 (en) | 2004-09-28 | 2010-05-19 | Intermediate of 6-substituted-1-methyl-1-H-benzimidazole derivative and method for producing same |
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| WO2006035685A1 true WO2006035685A1 (ja) | 2006-04-06 |
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| PCT/JP2005/017573 Ceased WO2006035685A1 (ja) | 2004-09-28 | 2005-09-26 | 6-置換-1-メチル-1-h-ベンズイミダゾール誘導体の製造方法及びその製造中間体 |
Country Status (9)
| Country | Link |
|---|---|
| US (2) | US7816552B2 (ja) |
| EP (1) | EP1798216A4 (ja) |
| KR (1) | KR101150739B1 (ja) |
| CN (2) | CN102391203A (ja) |
| BR (1) | BRPI0516192A (ja) |
| CA (1) | CA2580973C (ja) |
| IL (2) | IL181988A (ja) |
| TW (2) | TW201121950A (ja) |
| WO (1) | WO2006035685A1 (ja) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010013768A1 (ja) * | 2008-07-31 | 2010-02-04 | 第一三共株式会社 | チアゾリジンジオン化合物の結晶及びその製造方法 |
| WO2011065420A1 (ja) | 2009-11-26 | 2011-06-03 | 第一三共株式会社 | 6-置換-1-メチル-1h-ベンズイミダゾール誘導体の製造法及びその製造中間体 |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090239233A1 (en) * | 2002-01-25 | 2009-09-24 | Applera Corporation | Single-tube, ready-to-use assay kits, and methods using same |
| TW200637856A (en) * | 2005-01-24 | 2006-11-01 | Sankyo Co | Process for producing thiazolidinedion compound and intermediate thereof |
| WO2006105237A2 (en) * | 2005-03-29 | 2006-10-05 | The University Of Maryland, Baltimore | Inhibitors for extracellular signal-regulated kinase docking domains and uses therefor |
| TW200838512A (en) | 2007-02-08 | 2008-10-01 | Daiichi Sankyo Co Ltd | Crystalline forms of a thiazolidinedione compound and manufacturing methods thereof |
| MY148434A (en) * | 2007-04-05 | 2013-04-30 | Daiichi Sankyo Co Ltd | Fused bicyclic heteroaryl derivatives |
| RU2480463C1 (ru) | 2009-03-05 | 2013-04-27 | Дайити Санкио Компани, Лимитед | Пиридилокси производные, полезные в качестве активатора/модулятора гамма-рецептора, активируемого пролифератором пероксисом (ppar) гамма |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6440449A (en) * | 1987-07-27 | 1989-02-10 | Oreal | Substituted 2-nitromethaphenylenediamine, manufacture and hair dye composition |
| EP0385850A2 (fr) | 1989-03-03 | 1990-09-05 | Laboratoires Upsa | Nouveaux dérivés de benzimidazoles et azabenzimidazoles, leurs procédés de préparation, intermédiaires de synthèse, compositions pharmaceutiques les contenant, utiles notamment pour le traitement des maladies cardiovasculaires, et les ulcères duodénaux |
| JPH09295970A (ja) | 1995-06-01 | 1997-11-18 | Sankyo Co Ltd | 縮合複素環化合物 |
| JPH11193276A (ja) | 1997-10-08 | 1999-07-21 | Sankyo Co Ltd | 置換縮合複素環化合物 |
| EP1022272A1 (en) | 1997-10-08 | 2000-07-26 | Sankyo Company Limited | Substituted fused heterocyclic compounds |
| JP2003238406A (ja) * | 2001-12-11 | 2003-08-27 | Sankyo Co Ltd | 医薬組成物 |
| JP2004517080A (ja) * | 2000-11-29 | 2004-06-10 | グラクソ グループ リミテッド | Tie−2および/またはvegfr−2の阻害剤として有用なベンゾイミダゾール誘導体 |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1611489A (zh) * | 1999-06-28 | 2005-05-04 | 三共株式会社 | 笨并咪唑化合物的合成中间体及其制造方法 |
| AU2002354460A1 (en) | 2001-12-11 | 2003-07-09 | Sankyo Company, Limited | Medicinal composition |
-
2005
- 2005-09-26 WO PCT/JP2005/017573 patent/WO2006035685A1/ja not_active Ceased
- 2005-09-26 BR BRPI0516192-4A patent/BRPI0516192A/pt not_active IP Right Cessation
- 2005-09-26 KR KR1020077006939A patent/KR101150739B1/ko not_active Expired - Fee Related
- 2005-09-26 US US11/664,140 patent/US7816552B2/en not_active Expired - Fee Related
- 2005-09-26 EP EP05785694A patent/EP1798216A4/en not_active Withdrawn
- 2005-09-26 CN CN2011103098169A patent/CN102391203A/zh active Pending
- 2005-09-26 CA CA2580973A patent/CA2580973C/en not_active Expired - Fee Related
- 2005-09-26 CN CN2005800327991A patent/CN101068770B/zh not_active Expired - Fee Related
- 2005-09-27 TW TW100107677A patent/TW201121950A/zh unknown
- 2005-09-27 TW TW094133531A patent/TWI356824B/zh not_active IP Right Cessation
-
2007
- 2007-03-18 IL IL181988A patent/IL181988A/en not_active IP Right Cessation
-
2010
- 2010-05-19 US US12/800,612 patent/US8106079B2/en not_active Expired - Fee Related
-
2011
- 2011-06-16 IL IL213615A patent/IL213615A/en not_active IP Right Cessation
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6440449A (en) * | 1987-07-27 | 1989-02-10 | Oreal | Substituted 2-nitromethaphenylenediamine, manufacture and hair dye composition |
| EP0385850A2 (fr) | 1989-03-03 | 1990-09-05 | Laboratoires Upsa | Nouveaux dérivés de benzimidazoles et azabenzimidazoles, leurs procédés de préparation, intermédiaires de synthèse, compositions pharmaceutiques les contenant, utiles notamment pour le traitement des maladies cardiovasculaires, et les ulcères duodénaux |
| JPH09295970A (ja) | 1995-06-01 | 1997-11-18 | Sankyo Co Ltd | 縮合複素環化合物 |
| JPH11193276A (ja) | 1997-10-08 | 1999-07-21 | Sankyo Co Ltd | 置換縮合複素環化合物 |
| EP1022272A1 (en) | 1997-10-08 | 2000-07-26 | Sankyo Company Limited | Substituted fused heterocyclic compounds |
| JP2004517080A (ja) * | 2000-11-29 | 2004-06-10 | グラクソ グループ リミテッド | Tie−2および/またはvegfr−2の阻害剤として有用なベンゾイミダゾール誘導体 |
| JP2003238406A (ja) * | 2001-12-11 | 2003-08-27 | Sankyo Co Ltd | 医薬組成物 |
Non-Patent Citations (2)
| Title |
|---|
| JOURNAL OF MEDICINAL CHEMISTRY, vol. 39, 1996, pages 3971 - 3979 |
| See also references of EP1798216A4 |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010013768A1 (ja) * | 2008-07-31 | 2010-02-04 | 第一三共株式会社 | チアゾリジンジオン化合物の結晶及びその製造方法 |
| JPWO2010013768A1 (ja) * | 2008-07-31 | 2012-01-12 | 第一三共株式会社 | チアゾリジンジオン化合物の結晶及びその製造方法 |
| WO2011065420A1 (ja) | 2009-11-26 | 2011-06-03 | 第一三共株式会社 | 6-置換-1-メチル-1h-ベンズイミダゾール誘導体の製造法及びその製造中間体 |
Also Published As
| Publication number | Publication date |
|---|---|
| IL181988A (en) | 2013-04-30 |
| IL213615A (en) | 2013-05-30 |
| IL181988A0 (en) | 2007-07-04 |
| CN101068770B (zh) | 2012-01-04 |
| TW201121950A (en) | 2011-07-01 |
| CN101068770A (zh) | 2007-11-07 |
| US20100234612A1 (en) | 2010-09-16 |
| TWI356824B (en) | 2012-01-21 |
| KR101150739B1 (ko) | 2012-06-08 |
| KR20070061553A (ko) | 2007-06-13 |
| EP1798216A4 (en) | 2008-12-03 |
| TW200616997A (en) | 2006-06-01 |
| CA2580973A1 (en) | 2006-04-06 |
| EP1798216A1 (en) | 2007-06-20 |
| IL213615A0 (en) | 2011-07-31 |
| US7816552B2 (en) | 2010-10-19 |
| BRPI0516192A (pt) | 2008-08-26 |
| US8106079B2 (en) | 2012-01-31 |
| CA2580973C (en) | 2012-03-06 |
| US20090023929A1 (en) | 2009-01-22 |
| CN102391203A (zh) | 2012-03-28 |
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