申请人:Zyma SA
公开号:US04904675A1
公开(公告)日:1990-02-27
Compounds of the formula I ##STR1## wherein the groups A, R.sub.1, R.sub.2 and R.sub.3 are as defined in the specification, exhibit valuable pharmacological properties, especially as antifibrotic agents. They are prepared by methods known per se.
式I的化合物##STR1##,其中基团A,R.sub.1,R.sub.2和R.sub.3如规范中所定义,具有有价值的药理特性,特别是作为抗纤维化剂。它们通过已知的方法制备。