(2S,3S)-2-((2S,3R,4S,5S,6R)-3,5-Bis-benzyloxy-4-benzyloxycarbonylmethoxy-6-benzyloxymethyl-tetrahydro-pyran-2-yloxy)-3-((2S,3S,4R,5R,6S)-3,4,5-tris-benzyloxy-6-methyl-tetrahydro-pyran-2-yloxy)-succinic acid dimethyl ester 在
palladium on activated charcoal lithium hydroxide 、
氢气 作用下,
以
1,4-二氧六环 、
甲醇 、
乙醇 为溶剂,
生成 (2S,3S)-2-((2S,3R,4S,5S,6R)-4-Carboxymethoxy-3,5-dihydroxy-6-hydroxymethyl-tetrahydro-pyran-2-yloxy)-3-((2S,3S,4R,5S,6S)-3,4,5-trihydroxy-6-methyl-tetrahydro-pyran-2-yloxy)-succinic acid