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.
N-苄基五羟基氮杂
环庚烷在对氮原子的β羟基进行梅斯化时,会经历环异构化,涉及一个邻近氮原子的参与,形成一个短暂的氮杂环烷类中间体,该中间体被
氯捕获。最终得到的
氯甲基四羟基
哌啶已被转化为相应的同糖酸酶
抑制剂。