(2R,3S,4S,5R,6R,8R)-6-Benzyloxy-8-[(4S,5S,6R)-6-((1R,2R)-1,2-dihydroxy-1-methyl-butyl)-5-methyl-2-oxo-[1,3]oxazinan-4-yl]-3,5-dihydroxy-2,4,6-trimethyl-nonanoic acid methyl ester 在
palladium on activated charcoal
氢气 、
三氟乙酸 作用下,
以
二氯甲烷 、
乙酸乙酯 为溶剂,
反应 127.5h,
生成 (R)-2-[(4S,5S,6R)-6-{(1R,3R)-3-[(4S,5S,6R)-6-((1R,2R)-1,2-Dihydroxy-1-methyl-butyl)-5-methyl-2-oxo-[1,3]oxazinan-4-yl]-1-hydroxy-1-methyl-butyl}-5-methyl-2-(2,4,6-trimethyl-phenyl)-[1,3]dioxan-4-yl]-propionic acid methyl ester