(2R,3R,4S,5R,6S)-2-((benzoyloxy)methyl)-6-(((1S,3R,5S,6R,7S,8S)-6,7,8-tris(benzyloxy)-5-methoxy-4-oxaspiro[2.5]octan-1-yl)oxy)tetrahydro-2H-pyran-3,4,5-triyl tribenzoate 在
sodium methylate 作用下,
以
甲醇 为溶剂,
反应 7.0h,
以93%的产率得到(2R,3S,4S,5R,6S)-2-(hydroxymethyl)-6-(((1S,3R,5S,6R,7S,8S)-6,7,8-tris(benzyloxy)-5-methoxy-4-oxaspiro[2.5]octan-1-yl)oxy)tetrahydro-2H-pyran-3,4,5-triol