(E)-(4R,5S)-5-(tert-Butyl-dimethyl-silanyloxy)-5-((R)-2,2-dimethyl-[1,3]dioxolan-4-yl)-4-methyl-pent-2-enoic acid methyl ester 在
palladium on activated charcoal
氢气 作用下,
以
乙酸乙酯 为溶剂,
反应 1.5h,
以96%的产率得到methyl (4R,5S)-5-[tert-butyl(dimethyl)silyl]oxy-5-[(4R)-2,2-dimethyl-1,3-dioxolan-4-yl]-4-methylpentanoate