5'-(carboxymethyl-carbamoyl)-2'-(6-cyano-1-ethyl-1H-indol-3-ylmethyl)-4-methyl-biphenyl-2-carboxylic acid benzyl ester 、
乙胺盐酸盐 在
N-甲基吗啉 、 (benzotriazo-1-yloxy)tris(dimethylamino)phosphonium hexafluorophosphate 作用下,
以
DMF (N,N-dimethyl-formamide) 为溶剂,
反应 48.0h,
以35.5%的产率得到2'-(6-cyano-1-ethyl-1H-indol-3-ylmethyl)-5'-(ethylcarbamoylmethyl-carbamoyl)-4-methyl-biphenyl-2-carboxylic acid benzyl ester