(2S,3R,4R,5S,6R)-4-azido-5-(tert-butyldimethylsilyloxy)-6-methyltetrahydro-2H-pyran-2,3-diyl bis(2-chloro-2-methylpropanoate) 在
乙酸肼 作用下,
以
N,N-二甲基甲酰胺 为溶剂,
生成
(2R,3R,4R,5S,6R)-4-azido-5-(tert-butyldimethylsilyloxy)-2-hydroxy-6-methyltetrahydro-2H-pyran-3-yl 2-chloro-2-methylpropanoate 、 (2S,3R,4R,5S,6R)-4-azido-5-(tert-butyldimethylsilyloxy)-2-hydroxy-6-methyltetrahydro-2H-pyran-3-yl 2-chloro-2-methylpropanoate