(3aS,5R,6aR,7S,8R,10S,10aS)-8,10-Diacetoxy-7-acetoxymethyl-5-[(1S,2S,3R,4R,5R)-3-bromo-2-methoxy-5-(4-methoxy-benzyloxy)-bicyclo[2.2.1]hept-2-yloxy]-4-methylene-3-oxo-decahydro-2-oxa-cyclopenta[d]naphthalene-7-carboxylic acid methyl ester 在
n-butyl tin hydride 、
三乙基硼 作用下,
以
二氯甲烷 为溶剂,
反应 1.0h,
以80%的产率得到methyl (1S,2S,3S,4S,8S,9S,11R,12S,13R,15R,17S,18S,20R)-9,11-diacetyloxy-12-(acetyloxymethyl)-17-methoxy-20-[(4-methoxyphenyl)methoxy]-3-methyl-5-oxo-6,16-dioxahexacyclo[16.2.1.02,17.03,15.04,8.08,13]henicosane-12-carboxylate