(2R,4R,5R,6R)-4,5-Bis-benzyloxy-6-((R)-1,2-dihydroxy-ethyl)-2-((2R,3R,4S,5R,6S)-3,4,5-tris-benzyloxy-6-methoxy-tetrahydro-pyran-2-ylmethoxy)-tetrahydro-pyran-2-carboxylic acid methyl ester 在
palladium on activated charcoal
氢气 作用下,
以90%的产率得到(2R,4R,5R,6R)-6-((R)-1,2-Dihydroxy-ethyl)-4,5-dihydroxy-2-((2R,3S,4S,5R,6S)-3,4,5-trihydroxy-6-methoxy-tetrahydro-pyran-2-ylmethoxy)-tetrahydro-pyran-2-carboxylic acid methyl ester