申请人:Mitsubishi Chemical Industries Limited
公开号:US04857542A1
公开(公告)日:1989-08-15
A prophylactic and therapeutic agent for circulatory disorders, comprising a pyrazolone derivative of the formula: ##STR1## wherein R.sub.1 represents a hydrogen atom, an aryl group, an alkyl group having 1 to 5 carbon atoms or an alkoxycarbonylalkyl group having a total carbon number of 3 to 6; R.sub.2 represents a hydrogen atom, an aryloxy group, an arylmercapto group, an alkyl group having 1 to 5 carbon atoms or hydroxyalkyl group having 1 to 3 carbon atoms; or R.sub.1 and R.sub.2 taken together represent an alkylene group having 3 to 5 carbon atoms; R.sub.3 represents a hydrogen atom, an alkyl group having 1 to 5 carbon atoms, a cycloalkyl group having 5 to 7 carbon atoms, a hydroxyalkyl group having 1 to 3 carbon atoms, a benzyl group, a naphthyl group, or a phenyl group which is unsubstituted or substituted with 1 to 3 substituents which are the same or different selected from the group consisting of alkyl groups having 1 to 5 carbon atoms, alkoxy groups having 1 to 5 carbon atoms, hydroxyalkyl groups having 1 to 3 carbon atoms, alkoxycarbonyl groups having total carbon number of 2 to 5, alkylmercapto groups having 1 to 3 carbon atoms, alkylamino groups having 1 to 4 carbon atoms, dialkylamino groups having total carbon number of 2 to 8, halogen atoms, trifluoromethyl group, carboxyl group, cyano group, hydroxyl group, nitro group, amino group and acetamide group, or a pharmaceutically acceptable salt thereof as an acitve ingredient. The agent of the present invention is useful as a prophylactic and therapeutic agent for circulatory disorders, particularly as an inhibitor agaisnt lipid peroxidation and/or an agent for normalizing cerebral dysfunctions.
一种循环系统疾病的预防和治疗药剂,包括一种式为:##STR1##的吡唑酮衍生物,其中R.sub.1表示氢原子、芳基、具有1至5个碳原子的烷基或具有3至6个碳原子的烷氧羰基烷基;R.sub.2表示氢原子、芳氧基、芳基硫醇基、具有1至5个碳原子的烷基或具有1至3个碳原子的羟基烷基;或R.sub.1和R.sub.2一起表示具有3至5个碳原子的烷基;R.sub.3表示氢原子、具有1至5个碳原子的烷基、具有5至7个碳原子的环烷基、具有1至3个碳原子的羟基烷基、苄基、萘基或苯基,其未取代或取代1至3个取代基,所述取代基选自具有1至5个碳原子的烷基、具有1至5个碳原子的烷氧基、具有1至3个碳原子的羟基烷基、具有2至5个碳原子的烷氧羰基基团、具有1至3个碳原子的烷硫基基团、具有1至4个碳原子的烷基氨基基团、具有2至8个碳原子的二烷基氨基基团、卤素原子、三氟甲基基团、羧基、氰基、羟基、硝基、氨基和乙酰胺基团,或其药学上可接受的盐作为有效成分。本发明的药剂可用作循环系统疾病的预防和治疗药剂,特别是作为抑制脂质过氧化和/或正常化脑功能障碍的药剂。