acetic acid [3-(allylcarbamoyl)-5-chlorocarbonyl-2,4,6-triiodo-phenylcarbamoyl]-methyl ester 、
三[2-(甲基氨基)乙基]胺 在
三乙胺 作用下,
以
N,N-二甲基乙酰胺 为溶剂,
以65%的产率得到acetic acid [3-allylcarbamoyl-5-({2-[bis-(2-{[3-(2-acetoxy-acetylamino)-5-allylcarbamoyl-2,4,6-triiodo-benzoyl]-methyl-amino}-ethyl)-amino]-ethyl}-methylcarbamoyl)-2,4,6-triiodo-phenylcarbamoyl]-methyl ester