Process for preparing 1-substituted pyrrole-3-carboxylic acid derivatives

摘要

A simple and industrially viable process for preparing a 1-substituted pyrrole-3-carboxylic acid derivative of formula (I) is provided. The process comprises reacting a compound of formula (II), a compound of formula (III), and an acid anhydride according to the following reaction, <CHEM> wherein R1 and R2 individually represent an alkyl, aralkyl, or aryl group.