Novel 5-(4-vinyl- or 4-ethynylbenzoyl)-1,2-dihydro-3H-pyrrolo[1,2-a]pyrrole-1-carboxylic acids represented by the formula
and the pharmaceutically acceptable, non-toxic alkyl esters and salts thereof, wherein R is vinyl or ethynyl, and Y is hydrogen, a lower alkyl group having from 1 to 6 carbon atoms, chloro or bromo.
新颖的 5-(4-
乙烯基-或 4-
乙炔基苯甲酰基)-1,2-二氢-
3H-吡咯并[1,2-a]
吡咯-1-
羧酸,其式为
及其药学上可接受的无毒烷基酯和盐,其中 R 是
乙烯基或
乙炔基,Y 是氢、具有 1 至 6 个碳原子的低级烷基、
氯或
溴。