5-Aroyl-1,2-dihydro-3H-pyrrolo[1,2-a]pyrrole-1,1-dicarboxylates of the formula ##STR1## are prepared from 2-halopyrroles. Hydrolysis and .beta.-decarboxylation of these compounds affords ketorolac and related compounds.
式为##STR1##的5-Aroyl-1,2-dihydro-3H-pyrrolo[1,2-a]pyrrole-1,1-dicarboxylates是由2-卤代
吡咯制备而来。这些化合物的
水解和β-脱羧作用可制备出ketorolac和相关化合物。