2-[(2R,6S)-6-[(2R,4R,6R,7S)-2,4-bis[[tert-butyl(dimethyl)silyl]oxy]-6-[(4-methoxyphenyl)methoxy]-7-methylundec-9-ynyl]oxan-2-yl]acetic acid 、
(2S,3S,5R,7R,9R,10S,11R,15S)-10-chloro-11-methoxy-9-[3-[(4S,5S)-5-[(1S,2S)-2-methoxy-1-[(4-methoxyphenyl)methoxy]hept-5-ynyl]-2,2-dimethyl-1,3-dioxolan-4-yl]but-3-enyl]-15-methyl-3-(2-phenylmethoxyethyl)-4,6,8-trioxadispiro[4.1.57.35]pentadecan-2-ol 在
2,4,6-三氯苯甲酰氯 、
三乙胺 、
4-二甲氨基吡啶 作用下,
以
甲苯 为溶剂,
反应 2.5h,
以85%的产率得到[(2S,3S,5R,7R,9R,10S,11R,15S)-10-chloro-11-methoxy-9-[3-[(4S,5S)-5-[(1S,2S)-2-methoxy-1-[(4-methoxyphenyl)methoxy]hept-5-ynyl]-2,2-dimethyl-1,3-dioxolan-4-yl]but-3-enyl]-15-methyl-3-(2-phenylmethoxyethyl)-4,6,8-trioxadispiro[4.1.57.35]pentadecan-2-yl] 2-[(2R,6S)-6-[(2R,4R,6R,7S)-2,4-bis[[tert-butyl(dimethyl)silyl]oxy]-6-[(4-methoxyphenyl)methoxy]-7-methylundec-9-ynyl]oxan-2-yl]acetate