Access to Homoglyconojirimycins via Ring Isomerisation of Pentahydroxylated Azepanes
作者:Yves Blériot、Tao Liu、Yongmin Zhang
DOI:10.1055/s-2007-973884
日期:2007.4
N-Benzyl pentahydroxyazepanes undergo ring isomerization during mesylation of the hydroxyl group β to the nitrogen via a neighboring nitrogen participation involving a transient aziridinium species which is trapped by chlorine. The resulting chloromethyl tetrahydroxypiperidines have been converted into the corresponding homoglyconojirimycins.