[EN] STEREOSELECTIVE SYNTHESIS OF PHOSPHORUS CONTAINING ACTIVES<br/>[FR] SYNTHÈSE STÉRÉOSÉLECTIVE D'AGENTS ACTIFS CONTENANT DU PHOSPHORE
申请人:PHARMASSET INC
公开号:WO2011123668A2
公开(公告)日:2011-10-06
Disclosed herein are phosphorus-containing actives, their use as actives for treating diseases, and a stereoselective process for preparing the same. Also disclosed herein are useful synthetic intermediates and processes for preparing the same. A process for preparing a composition comprising an enantiomerically- or a diastereomerically-enriched phosphorus-containing active, salt, or pharmaceutically acceptable salt thereof, of formula I is disclosed: 1 which comprises a) reacting a protected or unprotected Active with a base to form a salt of said active and then reacting said salt with an enantiomerically- or a diastereomerically enriched compound of formula II wherein Group is as defined herein, W is an aryl or -CCH2)nSC(O)C(CH3)m(CH2OH)3-m, where n is 2 or 3 and m is 0, 1, 2, or 3, and LG is a leaving group; b) optionally deprotecting the compound obtained in step a) and c) optionally subjecting the compound obtained in step a) or the compound obtained in step b) to chromatography, extraction, or crystallization to obtain the active.
本文披露了含磷活性物质及其作为治疗疾病的活性成分的用途,以及制备它们的立体选择性过程。此外,本文还披露了有用的合成中间体及其制备过程。本文披露了一种制备式I中的对映体或二对映异构体富集的含磷活性物质、盐或药用可接受盐的组合物的过程:1 包括a)将受保护或未受保护的活性物质与碱反应,形成所述活性物质的盐,然后将所述盐与式II的对映体或二对映异构体富集化合物反应,其中Group如本文所定义,W为芳基或-CCH2)nSC(O)C(CH3)m(CH2OH)3-m,其中n为2或3,m为0、1、2或3,LG为离去基团;b)可选择性地去保护步骤a)中获得的化合物,c)可选择性地将步骤a)或步骤b)中获得的化合物进行色谱、萃取或结晶处理,以获得活性物质。