4-(3-carboxy-phenyl)-3,5-dimethyl-1H-pyrrole-2-carboxylic acid ethyl ester 、
3-异丙基苯胺 在
(benzotriazo-1-yloxy)tris(dimethylamino)phosphonium hexafluorophosphate 、
N,N-二异丙基乙胺 作用下,
以
DMF (N,N-dimethyl-formamide) 为溶剂,
以92%的产率得到4-[3-(3-isopropyl-phenylcarbamoyl)-phenyl]-3,5-dimethyl-1H-pyrrole-2-carboxylic acid ethyl ester