申请人:American Home Products Corporation
公开号:US05530025A1
公开(公告)日:1996-06-25
The compounds of formula I: ##STR1## wherein R.sub.1 and R.sub.2 are hydrogen, alkyl or cyclic or bicyclic alkyl; R.sub.3 is formyl, alkanoyl, alkenoyl, alkylsulfonyl, aroyl, arylalkenoyl, arylsulfonyl arylalkanoyl or arylalkylsulfonyl; A is a substituted phenyl group of the following formula: ##STR2## wherein R.sub.5 is cyano and R.sub.6 is alkyl, chloro, bromo, fluoro or iodo and pharmaceutically acceptable salts thereof, are smooth muscle relaxants.
式I的化合物:其中R.sub.1和R.sub.2为氢、烷基或环烷基或双环烷基;R.sub.3为甲酰基、烷酰基、烯酰基、烷基磺酰基、芳酰基、芳基烯酰基、芳基磺酰基、芳基烷酰基或芳基烷基磺酰基;A为以下式的取代苯基:其中R.sub.5为氰基,R.sub.6为烷基、氯、溴、氟或碘及其药学上可接受的盐,是平滑肌松弛剂。