7-[4-[5,11-Diethyl-4,6,10,12-tetramethyl-2,2-bis(2-pyren-1-ylethynyl)-3-aza-1-azonia-2-boranuidatricyclo[7.3.0.03,7]dodeca-1(12),4,6,8,10-pentaen-8-yl]phenyl]hept-6-ynoic acid 、
N-羟基丁二酰亚胺 在
4-二甲氨基吡啶 、
盐酸-N-乙基-Nˊ-(3-二甲氨基丙基)碳二亚胺 作用下,
以
二氯甲烷 为溶剂,
以54%的产率得到(2,5-Dioxopyrrolidin-1-yl) 7-[4-[5,11-diethyl-4,6,10,12-tetramethyl-2,2-bis(2-pyren-1-ylethynyl)-3-aza-1-azonia-2-boranuidatricyclo[7.3.0.03,7]dodeca-1(12),4,6,8,10-pentaen-8-yl]phenyl]hept-6-ynoate