Benzoic acid (2S,3S,4S,5S,6S)-4,5-bis-benzyloxy-6-[(R)-1-benzyloxy-2-(dimethyl-phenyl-silanyl)-ethyl]-2-[(2R,3R,4S,5S,6S)-3,5-bis-benzyloxy-2-((R)-1,2-bis-benzyloxy-ethyl)-6-methoxy-tetrahydro-pyran-4-yloxy]-tetrahydro-pyran-3-yl ester 在
过氧乙酸 、
sodium acetate 、 potassium bromide 作用下,
以
溶剂黄146 为溶剂,
反应 3.0h,
以85%的产率得到Benzoic acid (2R,3S,4S,5S,6R)-4,5-bis-benzyloxy-6-((S)-1-benzyloxy-2-hydroxy-ethyl)-2-[(2R,3R,4S,5S,6S)-3,5-bis-benzyloxy-2-((R)-1,2-bis-benzyloxy-ethyl)-6-methoxy-tetrahydro-pyran-4-yloxy]-tetrahydro-pyran-3-yl ester