申请人:Boehringer Biochemia Robin S.p.A.
公开号:US04845113A1
公开(公告)日:1989-07-04
Compounds of formula I ##STR1## wherein R is hydrogen or lower alkyl; R.sub.1 is acetyl, benzoyl, cyano, nitro, carboxy, alkoxycarbonyl or aminocarbonyl groups; R.sub.2 is an optionally substituted aryl or hetaryl residue; R.sub.3 is a carboxy or alkoxycarbonyl group; A is a cyclopropyl group or a group of formula --CH.dbd.CH-- and R.sub.4 is a phenyl or heteroaryl group, optionally mono, di or tri-substituted, are useful in radical scavenging therapy.
式I的化合物,其中R是氢或较低的烷基;R₁是乙酰基、苯甲酰基、氰基、硝基、羧基、烷氧羰基或氨基羰基基团;R₂是可选择取代的芳基或杂环基团;R₃是羧基或烷氧羰基基团;A是环丙基基团或式--CH=CH--的基团,R₄是苯基或杂环基团,可选择单取代、双取代或三取代,对自由基清除疗法有用。