5-(4-Vinylbenzoyl)-1,2-dihydro-3H-pyrrolo- 1,2-a!-pyrrole-1- carboxylic acids and derivatives thereof and use as analgesics and anti- inflammatories

摘要

Novel 5-(4-vinyl- or 4-ethynylbenzoyl)-1,2-dihydro-3H-pyrrolo[1,2-a]pyrrole-1-carboxylic acids represented by the formula IMAGE 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.