benzyl (4-methylcoumarin-7-yl 5-acetamido-4,9-di-O-butyldimethylsilyl-3,5-dideoxy-α-D-glycero-D-galacto-2-nonulopyranosid)onate 在
palladium on activated charcoal
吡啶 、
氢气 、
溶剂黄146 作用下,
以
乙醇 为溶剂,
反应 19.5h,
生成 4-methylcoumarin-7-yl 5-acetamido-7,8-di-O-acetyl-3,5-dideoxy-α-D-glycero-D-galacto-2-nonulopyranosidonic acid