3,5-dimethyl-4,5,6,7-tetrahydro-benzo[c]thiophene-1-carboxylic acid 、
3-[2-ethyl-4-(N-hydroxycarbamimidoyl)-6-methylphenyl]propionic acid 在
O-(benzotriazol-1-yl)-N,N,N',N'-tetramethyluronium tetrafluoroborate 、
N,N-二异丙基乙胺 作用下,
以
N,N-二甲基甲酰胺 为溶剂,
反应 1.08h,
生成 5,5-dimethyl-4,5,6,7-tetrahydro-benzo[c]thiophene-1-carboxylic acid N-(3-ethyl-5-methyl-4-(2-carboxy-ethyl)-N-hydroxybenzamidine)ester