Preparation of 2′-fluoro-2′-alkyl-substituted or other optionally substituted ribofuranosyl pyrimidines and purines and their derivatives
申请人:Gilead Pharmasset LLC
公开号:US10577359B2
公开(公告)日:2020-03-03
The present invention provides (i) processes for preparing a 2′-deoxy-2′-fluoro-2′-methyl-D-ribonolactone derivatives, (ii) conversion of intermediate lactones to nucleosides with potent anti-HCV activity, and their analogues, and (iii) methods to prepare the anti-HCV nucleosides containing the 2′-deoxy-2′-fluoro-2′-C-methyl-ß-D-ribofuranosyl nucleosides from a preformed, preferably naturally-occurring, nucleoside.
本发明提供了(i)制备2′-脱氧-2′-氟-2′-甲基-D-核糖内酯衍生物的工艺,(ii)将中间内酯转化为具有强效抗HCV活性的核苷、及其类似物,以及(iii)从预成的、最好是天然存在的核苷中制备含有 2′-脱氧-2′-氟-2′-C-甲基-ß-D-呋喃核糖核苷的抗 HCV 核苷的方法。