A new and efficient asymmetric synthesis of oseltamivir phosphate (Tamiflu) from d-glucose
作者:Boonsong Kongkathip、Sunisa Akkarasamiyo、Ngampong Kongkathip
DOI:10.1016/j.tet.2015.02.081
日期:2015.4
intermediate aziridine cyclohexene was synthesized as a mixture of diastereomers, via a metal-mediated domino reaction and ring closing metathesis (RCM). The iodoxylose compound was prepared in 9 steps from d-glucose. Both isomers of aziridine cyclohexene intermediate could be converted into Tamiflu via two pathways. First, both isomers of aziridine cyclohexene underwent aziridine-ring opening yielded diastereomeric
所述抗-influenza药物,磷酸奥塞米韦(达菲)从合成d葡萄糖通过一种新颖的和有效的合成路线。合成的独特之处在于,关键中间体氮丙啶环己烯通过金属介导的多米诺反应和闭环复分解(RCM)合成为非对映异构体的混合物。由d-葡萄糖以9个步骤制备碘羟糖化合物。氮丙啶环己烯中间体的两种异构体均可通过两种途径转化为达菲。首先,这两个异构体小号氮丙啶环己烯后行氮丙啶开环的非对映体得到的1,2-氨基环己烯甲磺酸酯小号。该反式-1,2-氨基甲磺酸酯异构体可通过形成氮丙啶而转化为达菲,然后对叠氮化物进行区域和立体选择性亲核取代,以提供1,2-氨基叠氮基化合物,而顺式异构体可通过S N 2取代直接转化叠氮化物得到相同的叠氮基产物,然后将其转化为磷酸奥司他韦。