{(2S,3S,4S,6S)-6-Acetoxymethyl-4-[(2S,3R,4S,5R)-4-((2S,3S,4R,5R,6S)-5-benzyloxy-3,4-dimethoxy-6-methyl-tetrahydro-pyran-2-yloxy)-3,5-dimethoxy-tetrahydro-pyran-2-yloxy]-3-methyl-tetrahydro-pyran-2-yl}-acetic acid methyl ester 在
palladium on activated charcoal
氢气 作用下,
以
甲醇 为溶剂,
以80%的产率得到{(2S,3S,4S,6S)-6-Acetoxymethyl-4-[(2S,3R,4S,5R)-3,5-dimethoxy-4-((2S,3S,4R,5R,6S)-3,4,5-trimethoxy-6-methyl-tetrahydro-pyran-2-yloxy)-tetrahydro-pyran-2-yloxy]-3-methyl-tetrahydro-pyran-2-yl}-acetic acid methyl ester