Method for preparing substituted 3-(2-anilino-1-cyclohexyl-1H-benzimidazol-5-yl)propanoic acid derivatives
申请人:Bayer Pharma Aktiengesellschaft
公开号:US10703727B2
公开(公告)日:2020-07-07
The present invention relates to a method for preparing substituted 3-(2-anilino-1-cyclohexyl-1H-benzimidazol-5-yl)propanoic acid derivatives of the general formula (I) in which R1 represents a hydrogen atom or R1 represents a group selected from the series of C1-C3-alkyl-, C1-C3-alkoxy-, C1-C3-haloalkyl- and C1-C3-haloalkoxy-, R2 represents a hydrogen atom or a C1-C3-alkyl group, R3 represents a hydrogen atom or a C1-C3-alkyl group, R4 represents a cyclohexyl group, which is optionally singly or multiply substituted by a C1-C3-alkyl group, and R5 represents a hydrogen atom or a C1-C6-alkyl group; and also intermediates which may be used to prepare substituted 3-(2-anilino-1-cyclohexyl-1H-benzimidazol-5-yl)propanoic acid derivatives. The present invention also relates to a crystalline form of 3-(2-[4-(trifluoromethoxy)phenyl]amino}-1-[(1R,5R)-3,3,5-trimethylcyclohexyl]-1H-benzimidazol-5-yl)propanoic acid, pharmaceutical compositions comprising this crystalline form, and also the use of this crystalline form for preparing a medicament for the treatment of a disease.
本发明涉及一种制备通式(I)的取代的3-(2-苯胺基-1-环己基-1H-苯并咪唑-5-基)丙酸衍生物的方法,通式(I)中R1代表氢原子或R1代表选自C1-C3-烷基-、C1-C3-烷氧基-、C1-C3-卤代烷基-和C1-C3-卤代烷氧基-系列的基团,R2代表氢原子或C1-C3-烷基,R3代表氢原子或C1-C3-烷氧基、C1-C3-卤代烷基和 C1-C3-卤代烷氧基,R2 代表氢原子或 C1-C3- 烷基,R3 代表氢原子或 C1-C3- 烷基,R4 代表环己基,该环己基可选择被 C1-C3- 烷基单个或多个取代,R5 代表氢原子或 C1-C6- 烷基;以及可用于制备取代的 3-(2-苯胺基-1-环己基-1H-苯并咪唑-5-基)丙酸衍生物的中间体。本发明还涉及 3-(2-[4-(三氟甲氧基)苯基]氨基}-1-[(1R,5R)-3,3,5-三甲基环己基]-1H-苯并咪唑-5-基)丙酸的结晶形式、包含这种结晶形式的药物组合物,以及使用这种结晶形式制备治疗疾病的药物。