乙胺 、
Methanesulfonic acid 2-{3-[4-(1-{2-[2-(2-methanesulfonyloxy-ethoxy)-ethoxy]-ethyl}-1H-indol-3-yl)-2,5-dioxo-2,5-dihydro-1H-pyrrol-3-yl]-indol-1-yl}-ethyl ester 在
N,N-二异丙基乙胺 作用下,
以
N,N-二甲基甲酰胺 为溶剂,
生成 23-Ethyl-17,20-dioxa-4,14,23,26-tetrazahexacyclo[24.6.1.17,14.02,6.08,13.027,32]tetratriaconta-1(33),2(6),7(34),8,10,12,27,29,31-nonaene-3,5-dione