(2S,3R,4S,5S,6R)-2-[4-chloro-3-(2,3-dihydrobenzofuran-5-ylmethyl)phenyl]-6-(hydroxymethyl)-2-methoxy-tetrahydropyran-3,4,5-triol 、
叔丁基二甲基氯硅烷 在
4-二甲氨基吡啶 乙酸乙酯 、
水 、
氯化钠 、
magnesium sulfate 、
(2S,3R,4S,5S,6R)-6-[(tert-butyl(dimethyl)silyl)oxymethyl]-2-[4-chloro-3-(2,3-dihydrobenzofuran-5-ylmethyl)phenyl]-2-methoxy-tetrahydropyran-3,4,5-triol 作用下,
以
吡啶 为溶剂,
反应 16.0h,
以to obtain the title compound (2S,3R,4S,5S,6R)-6-[(tert-butyl(dimethyl)silyl)oxymethyl]-2-[4-chloro-3-(2,3-dihydrobenzofuran-5-ylmethyl)phenyl]-2-methoxy-tetrahydropyran-3,4,5-triol 5f (7.96 g, pale yellow solid), which的产率得到(2S,3R,4S,5S,6R)-6-[(tert-butyl(dimethyl)silyl)oxymethyl]-2-[4-chloro-3-(2,3-dihydrobenzofuran-5-ylmethyl)phenyl]-2-methoxy-tetrahydropyran-3,4,5-triol