methyl 2-O-benzyl-4,6-cyclo-3-C-bis(methoxycarbonyl)methyl-4-(4-methylphenyl)sulfonyl-3,4,6-trideoxy-α-D-glucopyranoside 在
sodium amalgam 作用下,
以
甲醇 为溶剂,
反应 4.0h,
以67%的产率得到methyl 2-O-benzyl-4,6-cyclo-3-C-bis(methoxycarbonyl)methyl-3,4,6-trideoxy-α-D-glucopyranoside