乙酸酐 、
(1S,2S,4R,4aR,6S,8S,8aS)-8-[(S)-2-(tert-Butyl-dimethyl-silanyloxy)-1-methyl-ethyl]-4-[(R)-1-(tert-butyl-dimethyl-silanyloxymethyl)-2-methyl-propyl]-6-(tert-butyl-diphenyl-silanyloxy)-2-hydroxymethyl-decahydro-naphthalene-1,2-diol 在
吡啶 、
4-二甲氨基吡啶 作用下,
以
二氯甲烷 为溶剂,
反应 32.0h,
以67%的产率得到[(1S,2S,4R,4aR,6S,8S,8aS)-1,2-diacetyloxy-4-[(2R)-1-[tert-butyl(dimethyl)silyl]oxy-3-methylbutan-2-yl]-8-[(2S)-1-[tert-butyl(dimethyl)silyl]oxypropan-2-yl]-6-[tert-butyl(diphenyl)silyl]oxy-3,4,4a,5,6,7,8,8a-octahydro-1H-naphthalen-2-yl]methyl acetate