(S)-N-(4-(9-(2,6-diisopropylphenyl)-1,3,8,10-tetraoxo-5,6,12,13-tetraphenoxy-3,8,9,10-tetrahydroanthra[2,1,9-def:6,5,10-d'e'f']diisoquinolin-2(1H)-yl)butyl)-2-formamidopropanamide 在
N-甲基吗啉 、
氯甲酸三氯甲酯 作用下,
以
二氯甲烷 为溶剂,
以93%的产率得到(2S)-N-[4-[18-[2,6-di(propan-2-yl)phenyl]-6,8,17,19-tetraoxo-11,14,22,26-tetraphenoxy-7,18-diazaheptacyclo[14.6.2.22,5.03,12.04,9.013,23.020,24]hexacosa-1(22),2(26),3,5(25),9,11,13,15,20,23-decaen-7-yl]butyl]-2-isocyanopropanimidic acid