[4-({[(5aS,6R,8aS,9R,10S,12R,12aR)-3,6,9-trimethyldecahydro-3,12-epoxy[1,2]dioxepino[4,3-i]isochromen-10-yl]oxy}methyl)phenyl]acetic acid 、
3-(1-methyl-4-(1-methyl-4-(1-methyl-4-aminopyrrole-2-carboxamido)pyrrole-2-carboxamido)pyrrole-2-carboxamido)dimethylaminopropane 在
O-(1H-benzotriazol-1-yl)-N,N,N',N'-tetramethyluronium hexafluorophosphate 、
N,N-二异丙基乙胺 作用下,
以
N,N-二甲基甲酰胺 为溶剂,
以32%的产率得到N-[3-(dimethylamino)propyl]-1-methyl-4-({[1-methyl-4-({[1-methyl-4-({[4-({[(5aS,6R,8aS,9R,10S,12R,12aR)-3,6,9-trimethyldecahydro-3,12-epoxy[1,2]dioxepino[4,3-i]isochromen-10-yl]oxy}methyl)phenyl]acetyl}amino)-1H-pyrrol-2-yl]carbonyl}amino)-1H-pyrrol-2-yl]carbonyl}amino)-1H-pyrrole-2-carboxamide