Acetic acid (2S,3R,4S,6S)-6-acetoxymethyl-3-benzyloxy-2-((2R,3R,4S,5R,6S)-3,4,5-tris-benzyloxy-6-methoxy-tetrahydro-pyran-2-ylmethoxy)-tetrahydro-pyran-4-yl ester 在
sodium methylate 作用下,
以
甲醇 、
甲苯 为溶剂,
反应 0.33h,
以92.6%的产率得到(2S,3R,4S,6S)-3-Benzyloxy-6-hydroxymethyl-2-((2R,3R,4S,5R,6S)-3,4,5-tris-benzyloxy-6-methoxy-tetrahydro-pyran-2-ylmethoxy)-tetrahydro-pyran-4-ol