在
sodium methylate 作用下,
以
甲醇 、
二氯甲烷 为溶剂,
反应 2.0h,
以95%的产率得到[(2R,3R,4S,5R,6S)-6-[(2R,3S,4R,5R,6S)-4-acetyloxy-6-[(2S,3R,4S,5S,6R)-3-acetyloxy-2-[(2R,3S,4R,5R,6R)-4-acetyloxy-2-(2,2-dimethylpropanoyloxymethyl)-5-(1,3-dioxoisoindol-2-yl)-6-phenylmethoxyoxan-3-yl]oxy-6-(2,2-dimethylpropanoyloxymethyl)-5-hydroxyoxan-4-yl]oxy-2-(2,2-dimethylpropanoyloxymethyl)-5-(1,3-dioxoisoindol-2-yl)oxan-3-yl]oxy-3,4,5-trihydroxyoxan-2-yl]methyl 2,2-dimethylpropanoate