(2S,3S,4S,5S,6S)-methyl 5-(benzyloxy)-6-((2S,3S,6S)-6-((R)-1-(benzyloxy)propan-2-yl)-3-methyltetrahydro-2H-pyran-2-yl)-3-hydroxy-2,4-dimethylheptanoate 在
palladium 10% on activated carbon 、
氢气 作用下,
以
甲醇 为溶剂,
以32%的产率得到(3S,4S,5S,6S)-4-hydroxy-6-((R)-1-((2S,3S,6S)-6-((R)-1-hydroxypropan-2-yl)-3-methyltetrahydro-2H-pyran-2-yl)-ethyl)-3,5-dimethyltetrahydro-2H-pyran-2-one