申请人:Syntex (U.S.A.) Inc.
公开号:US04347185A1
公开(公告)日:1982-08-31
5-benzoyl-7-halo-1,2-dihydro-3H-pyrrolo[1,2-a]pyrrole-1-carboxylic acids, represented by the formula ##STR1## and the pharmaceutically acceptable non-toxic esters and salts thereof, wherein: R is hydrogen or lower alkyl; X is hydrogen, lower alkyl, lower alkoxyl, lower alkoxycarbonyl, carboxyl, lower alkylcarbonyl, sulfonic acid, sulfonic acid alkyl ester, fluoro, chloro, or bromo; and Y is chloro or bromo, which are novel, and 5-benzoyl-1,2-dihydro-3H-pyrrolo[1,2-a]pyrrole-1-carboxylic acids which are represented by the formula ##STR2## wherein X and R are as above defined except that X cannot be chloro or bromo, are prepared by decarboxylation of the corresponding 1,1 dicarboxylates. Intermediates in said preparation are also disclosed.
5-苯甲酰基-7-卤代-1,2-二氢-3H-吡咯并[1,2-a]吡咯-1-羧酸,其化学式表示为##STR1##及其药学上可接受的无毒酯和盐,其中:R为氢或较低的烷基;X为氢、较低的烷基、较低的烷氧基、较低的烷氧羰基、羧基、较低的烷基羰基、磺酸、磺酸烷基酯、氟、氯或溴;Y为氯或溴,这些是新颖的,以及由化学式##STR2##表示的5-苯甲酰基-1,2-二氢-3H-吡咯并[1,2-a]吡咯-1-羧酸,其中X和R如上所定义,但X不能是氯或溴,通过相应的1,1-二羧酸盐的脱羧制备。该制备中的中间体也被披露。