[(8S,11S,14S)-14-[(tert-butoxycarbonyl)amino]-11-{3-[(tert-butoxycarbonyl)amino]propyl}-17-hydroxy-10,13-dioxo-9,12-diazotricyclo[14.3.1.12,6]henicosa-1(20),2(21),3,5,16,18-hexaen-8-yl]acetic acid 、
tert-Butyl {(4S,10S,15S)-4-amino-10,15-bis[(tert-butoxycarbonyl)amino]-22,22-dimethyl-5,12,20-trioxo-21-oxa-6,13,19-triazatricos-1-yl}carbamate 在
1-羟基苯并三唑 、
盐酸-N-乙基-Nˊ-(3-二甲氨基丙基)碳二亚胺 作用下,
以
N,N-二甲基甲酰胺 为溶剂,
反应 12.0h,
以33%的产率得到tert-butyl [(4S,10S,15S)-10,15-bis[(tert-butoxycarbonyl)amino]-4-({[(8S,11S,14S)-14-[(tert-butoxycarbonyl)amino]-11-{3-[(tert-butoxycarbonyl)amino]propyl}-17-hydroxy-10,13-dioxo-9,12-diazatricyclo[14.3.1.12,6]henicosa-1(20),2(21),3,5,16,18-hexaen-8-yl]acetyl}amino)-22,22-dimethyl-5,12,20-trioxo-21-oxa-6,13,19-triazatricos-1-yl]carbamate