(3aS,6R,7S,7aR)-7-acetoxy-5-(4'-methoxybenzenesulfonyl)-2,2-dimethyl-hexahydro-[1,3]dioxolo[4,5-c]pyridine-6-carboxylic acid benzyloxyamide 在
palladium on activated charcoal Dowex-H
+ 、
氢气 、
sodium methylate 作用下,
以
甲醇 为溶剂,
生成 (2R,3S,4R,5S)-3,4,5-trihydroxy-1-(4'-methoxybenzenesulfonyl)-piperidine-2-carboxylic acid hydroxamide