4-{[(4-amino-1-methyl-1H-pyrrol-2-yl)carbonyl]amino}-N-[3-(dimethylamino)propyl]-1-methyl-1H-pyrrole-2-carboxamide 、
6-(2-carboxyethyl)indole-2-carboxylic acid 在
N-甲基吗啉 、 O-(1H-benzotriazol-1-yl)-N,N,N',N'-tetramethyluronium hexafluorophosphate 作用下,
生成 6-(2-carboxamidoethyl)-2-carboxamidoindole-bis{3-[1-methyl-4-(1-methyl-4-aminopyrrole-2-carboxamido)pyrrole-2-carboxamido]dimethylamino-propane}