(1S,2S,4S,5R)-4-((R)-1-benzyloxycarbonyl-2-phenyl-ethoxy)-5-(2-acetamido-4,6-O-dipivaloyl-3-O-acetyl-2-deoxy-β-D-galactopyranosyl)-cyclohexane-1,2-dicarboxylic acid di-tert-butyl ester 在
palladium on activated charcoal
氢气 作用下,
以
甲醇 、
水 为溶剂,
以97%的产率得到(1S,2S,4S,5R)-4-((R)-1-carboxy-2-phenyl-ethoxy)-5-(2-acetamido-4,6-O-dipivaloyl-3-O-acetyl-2-deoxy-β-D-galactopyranosyl)-cyclohexane-1,2-dicarboxylic acid di-tert-butyl ester