4-(4-carboxy-phenyl)-3,5-dimethyl-1H-pyrrole-2-carboxylic acid ethyl ester 、
4-异丙基苯胺 在
(benzotriazo-1-yloxy)tris(dimethylamino)phosphonium hexafluorophosphate 作用下,
以
DMF (N,N-dimethyl-formamide) 为溶剂,
生成
4-[4-(4-isopropyl-phenylcarbamoyl)-phenyl]-3,5-dimethyl-1H-pyrrole-2-carboxylic acid ethyl ester