申请人:Kyorin Pharmaceutical Co., Ltd.
公开号:US05359076A1
公开(公告)日:1994-10-25
The present invention provides novel cyclic aminophenylacetic acid derivatives having modulating action on immune response, their optical isomers, their salts and their preparative processes, and therapeutic agents for autoimmune diseases containing them as effective ingredients, the cyclic aminophenylacetic acid derivatives being represented by a general formula (1) ##STR1## wherein R and R.sup.1 each independently denotes hydrogen atom or lower alkyl group having 1 to 3 carbon atoms, R.sup.2 denotes a phenyl group (which may be substituted with 1 to 3 groups of halogen atom, methoxy group or their combinations) or trifluoromethyl group, and X denotes a hydrogen atom, lower alkyl group having 1 to 3 carbon atoms, lower alkoxy group having 1 to 3 carbon atoms, cyano group, thiocyano group, trimethylsilylethinyl group, phenyl group (which may be substituted with halogen atom, methoxy group, methyl group or their combinations), carbamoyl group, carboxyl group, lower alkoxycarbonyl group having 1 to 3 carbon atoms, acetyl group, benzoyl group, nitro group, amino group, lower alkanoylamino group having 1 to 3 carbon atoms, benzoylamino group which may be substituted, phenylsulfonylamino group which may be substituted, lower alkylthio group having 1 to 3 carbon atoms, lower alkylsulfinyl group having 1 to 3 carbon atoms, lower alkylsulfonyl group having 1 to 3 carbon atoms or halogen atom.
本发明提供了新型环状氨基苯乙酸衍生物,其具有免疫反应调节作用,以及它们的光学异构体、盐和制备方法,以及作为自身免疫性疾病的治疗剂的有效成分含有它们的药物。环状氨基苯乙酸衍生物由下式表示(1):其中R和R1各自独立表示氢原子或具有1到3个碳原子的低碳基,R2表示苯基(可以用1到3个卤素原子、甲氧基或它们的组合取代),或三氟甲基基团,X表示氢原子、具有1到3个碳原子的低碳基、具有1到3个碳原子的低烷氧基、氰基、硫氰基、三甲基硅基乙烯基、苯基(可以用卤素原子、甲氧基、甲基或它们的组合取代)、氨基甲酰基、羧基、具有1到3个碳原子的低烷氧羰基、乙酰基、苯甲酰基、硝基、氨基、具有1到3个碳原子的低烷酰胺基、苯甲酰胺基(可以取代)、苯基磺酰胺基(可以取代)、具有1到3个碳原子的低烷硫基、具有1到3个碳原子的低烷基硫醇基、具有1到3个碳原子的低烷基亚磺酰基或卤素原子。