申请人:SUNTORY LIMITED
公开号:EP0475214A1
公开(公告)日:1992-03-18
Described are caffeic acid derivatives represented by the following formula:
wherein either one of R¹ and R² is a hydrogen atom, a C₁-C₆ alkyl group, a group -CO₂R⁴, or a group -CONR⁵R⁶, R⁴, R⁵ and R⁶ being either a hydrogen atom or a particular group, and the other is the group -CO₂R⁴ or the group -CONR⁵R⁶, or R¹ and R² are coupled together to represent a 5-membered ring so formed, Y represents a particular group or atom, X represents a substituted or unsubstituted C₆-C₁₀ aryl, C₇-C₁₂ aralkyl, heterocyclic or heterocyclic ring-alkyl group, m and n stand for particular integers, and R₃ represents a hydrogen atom, a hydroxyl group, a group -OCO₂R⁷, R⁷ being a hydrogen atom or a particular group, or a group -OCONR⁸R⁹, R⁸ representing a C₁-C₆ alkyl group and R⁹ representing a hydrogen atom or a C₁-C₆ alkyl group, and pharmaceutically acceptable salts thereof. Therapeutic agents containing the derivatives or salts are effective for diseases of the circulatory system.
所述的咖啡酸衍生物由下式表示:
其中R¹和R²之一是氢原子、C₁-C₆烷基、基团-CO₂R⁴或基团-CONR⁵R⁶,R⁴、R⁵和R⁶是氢原子或特定基团、另一个是基团-CO₂R⁴或基团-CONR⁵R⁶,或 R¹ 和 R² 联在一起代表这样形成的五元环,Y 代表特定的基团或原子,X 代表取代或未取代的 C₆-C₁₀ 芳基、C₇-C₁₂ 芳基、杂环或杂环环烷基,m 和 n 代表特定整数,R₃ 代表氢原子、羟基、基团 -OCO₂R⁷、R⁷是氢原子或特定基团,或基团 -OCONR⁸R⁹,R⁸代表 C₁-C₆烷基,R⁹代表氢原子或 C₁-C₆烷基,及其药学上可接受的盐。含有这些衍生物或盐的治疗剂对循环系统疾病有效。