(2S,3S,4S,5R,6S)-3-((4aR,6S,7R,8R,8aR)-7-Azido-8-hydroxy-2-phenyl-hexahydro-pyrano[3,2-d][1,3]dioxin-6-yloxy)-6-(4-methoxy-phenoxy)-4,5-bis-(4-methyl-benzoyloxy)-tetrahydro-pyran-2-carboxylic acid methyl ester 在
吡啶 、
盐酸 、 3 A molecular sieve 、
methyl orange 、 sodium cyanoborohydride 作用下,
反应 5.0h,
生成
(2S,3S,4S,5R,6S)-3-((2S,3R,4R,5R,6R)-4-Acetoxy-3-acetylamino-6-benzyloxymethyl-5-hydroxy-tetrahydro-pyran-2-yloxy)-6-(4-methoxy-phenoxy)-4,5-bis-(4-methyl-benzoyloxy)-tetrahydro-pyran-2-carboxylic acid methyl ester