Acetic acid (2R,3S,4R,5R,6S)-4,5-diacetoxy-2-((2S,3R,4S,5S,6R)-4-allyloxy-5-hydroxy-6-hydroxymethyl-2-methoxy-tetrahydro-pyran-3-yloxy)-6-methyl-tetrahydro-pyran-3-yl ester 在
sodium methylate 作用下,
以
甲醇 为溶剂,
反应 2.0h,
以96%的产率得到(2R,3S,4R,5S,6S)-2-((2S,3R,4S,5S,6R)-4-Allyloxy-5-hydroxy-6-hydroxymethyl-2-methoxy-tetrahydro-pyran-3-yloxy)-6-methyl-tetrahydro-pyran-3,4,5-triol