Acetic acid (1R,2S,4S)-2-acetoxy-5-benzyloxy-1-{(2R,3R,4S,5S,6R)-4-(tert-butyl-dimethyl-silanyloxy)-6-[(R)-2-(tert-butyl-dimethyl-silanyloxy)-3-methoxy-propyl]-2-methoxy-3,5-dimethyl-tetrahydro-pyran-2-yl}-4-methoxy-pentyl ester 在
palladium dihydroxide 氢气 、
戴斯-马丁氧化剂 作用下,
以
吡啶 、
二氯甲烷 、
乙酸乙酯 为溶剂,
反应 1.75h,
生成 Acetic acid (1R,2S,4S)-2-acetoxy-1-{(2R,3R,4S,5S,6R)-4-(tert-butyl-dimethyl-silanyloxy)-6-[(R)-2-(tert-butyl-dimethyl-silanyloxy)-3-methoxy-propyl]-2-methoxy-3,5-dimethyl-tetrahydro-pyran-2-yl}-4-methoxy-5-oxo-pentyl ester