(2R,3R,4R,5R)-3,4-Bis-benzyloxy-2-benzyloxymethyl-6-(tert-butyl-dimethyl-silanyloxy)-5-hydroxy-hexanoic acid amide 在
乙酸酐 作用下,
以
二甲基亚砜 为溶剂,
反应 16.0h,
生成 (3R,4R,5S,6R)-4,5-Bis-benzyloxy-3-benzyloxymethyl-6-(tert-butyl-dimethyl-silanyloxymethyl)-6-hydroxy-piperidin-2-one 、 (3R,4R,5S,6S)-4,5-Bis-benzyloxy-3-benzyloxymethyl-6-(tert-butyl-dimethyl-silanyloxymethyl)-6-hydroxy-piperidin-2-one