A new synthetic route towards iminosugars starting from chiral epoxyamides is described. The strategy, by which a single precursor, the α,β-epoxyamide obtained from 6-O-trityl-2,3-O-isopropylidene-d-ribose and a sulphur ylide, can be transformed into different iminosugars, is based on the combination of a regioselective epoxide opening and stereospecific intramolecular displacements.
描述了一种从手性环氧酰胺开始的合成亚
氨基糖的新途径。可以将单一的前体,即由6 - O-三苯甲基-2,3- O-异亚丙基-d-
核糖和
硫内酰胺制得的α,β-环氧酰胺转化成不同的亚
氨基糖的策略。区域选择性
环氧化物开口和立体定向分子内位移的组合。