tert-butyl (11S)-2-(4-((S)-2-((S)-2-amino-3-methylbutanamido)propanamido)phenyl)-8-(3-(((11S)-10-(tert-butoxycarbonyl)-11-((tert-butyldimethylsilyl)oxy)-2-cyclopropyl-7-methoxy-5-oxo-5,10,11,11a-tetrahydro-1H-benzo[e]pyrrolo[1,2-a][1,4]diazepin-8-yl)oxy)propoxy)-11-((tert-butyldimethylsilyl)oxy)-7-methoxy-5-oxo-11,11a-dihydro-1H-benzo[e]pyrrolo[1,2-a][1,4]diazepine-10(5H)-carboxylate 、
1-马来酰亚胺基-3-氧代-7,10,13,16,19,22,25,28-八氧杂-4-氮杂-三十一烷-31-酸 在
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,
反应 1.0h,
以82%的产率得到tert-butyl (11S)-8-(3-(((11S)-10-(tert-butoxycarbonyl)-11-((tert-butyldimethylsilyl)oxy)-2-(4-((2S,5S)-37-(2,5-dioxo-2,5-dihydro-1H-pyrrol-1-yl)-5-isopropyl-2-methyl-4,7,35-trioxo-10,13,16,19,22,25,28,31-octaoxa-3,6,34-triazaheptatriacontanamido)phenyl)-7-methoxy-5-oxo-5,10,11,11a-tetrahydro-1H-benzo[e]pyrrolo[1,2-a][1,4]diazepin-8-yl)oxy)propoxy)-11-((tert-butyldimethylsilyl)oxy)-2-cyclopropyl-7-methoxy-5-oxo-11,11a-dihydro-1H-benzo[e]pyrrolo[1,2-a][1,4]diazepine-10(5H)-carboxylate