申请人:Syntex (U.S.A.) Inc.
公开号:US04089969A1
公开(公告)日:1978-05-16
Novel 5-aroyl-1,2-dihydro-3H-pyrrolo[1,2-a]pyrrole-1-carboxylic acid compounds represented by the formula ##STR1## and the pharmaceutically acceptable, non-toxic esters and salts thereof, wherein R is hydrogen or a lower alkyl group containing from 1 to 4 carbon atoms and R.sup.1 is hydrogen, a lower alkyl group having from 1 to 4 carbon atoms, a lower alkoxy group of 1 to 4 carbon atoms, chloro, fluoro or bromo, the R.sup.1 substitution being at the ortho, meta or para positions of the aroyl group and process for the production of such compounds; 5-p-toluoyl-1,2-dihydro-3H-pyrrolo[1,2-a]pyrrole-1-carboxylic acid is representative of the class. These compounds, as the racemic mixture or the (1)-isomer, are useful as anti-inflammatory, analgesic and antipyretic agents and as smooth muscle relaxants.
新型5-芳酰基-1,2-二氢-3H-吡咯并[1,2-a]吡咯-1-羧酸化合物由以下结构式表示 ##STR1## 及其药学上可接受的、无毒的酯和盐,其中R为氢或含有1至4个碳原子的较低烷基基团,R.sup.1为氢、含有1至4个碳原子的较低烷基基团、1至4个碳原子的较低烷氧基、氯、氟或溴,R.sup.1取代位于芳酰基团的邻位、间位或对位,并且制备这类化合物的方法;5-对甲苯酰基-1,2-二氢-3H-吡咯并[1,2-a]吡咯-1-羧酸代表该类。这些化合物,作为消炎、镇痛和退热剂以及平滑肌松弛剂,其消旋混合物或(1)-异构体都是有用的。