5-aroyl-1,2-dihydro-3h-pyrrolo ¬1,2-a -pyrrole-1- carboxylic acid derivatives and process for the production thereof

Abstract From the Canadian patent

5-AROYL-1,2-DIHYDRO-3H-PYRROLO1,2-aPYRROLE-1- CARBOXYLIC ACID DERIVATIVES AND PROCESS FOR THE PRODUCTION THEREOF, ABSTRACT OF THE DISCLOSURE Novel 5-aroyl-1,2-dihydro-3H-pyrrolo1,2-apyrrole- 1-carboxylic acid compounds represented by the formula 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 R1 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 R1 substitution being at the ortho meta or para positions, of the aroyl group and the process for the production of such compounds; …