(2S,3R,Z)-3-((R)-2-((5S,6R)-6-((R)-2-amino-3-methylbutanamido)-2,2-dimethyl-tetrahydrofuro[2,3-d][1,3]dioxole-5-carboxamido)-3-phenylpropanamido)-9-(4-methoxybenzyloxy)-2-methylnon-5-enoic acid 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
二氯甲烷 为溶剂,
以77%的产率得到(1S,4R,7R,8S,11R,14R,15R,19R)-4-benzyl-7-[(Z)-6-[(4-methoxyphenyl)methoxy]hex-2-enyl]-8,17,17-trimethyl-11-propan-2-yl-16,18,20-trioxa-3,6,10,13-tetrazatricyclo[12.6.0.015,19]icosane-2,5,9,12-tetrone