Invention Grant
- Patent Title: Preparation of 2′-fluoro-2′-alkyl-substituted or other optionally substituted ribofuranosyl pyrimidines and purines and their derivatives
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Application No.: US15425198Application Date: 2017-02-06
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Publication No.: US10577359B2Publication Date: 2020-03-03
- Inventor: Byoung-Kwon Chun , Jinfa Du , Suguna Rachakonda , Peiyuan Wang
- Applicant: Gilead Pharmasset LLC
- Applicant Address: US CA Foster City
- Assignee: Gilead Pharmasset LLC
- Current Assignee: Gilead Pharmasset LLC
- Current Assignee Address: US CA Foster City
- Agency: Sheppard Mullin Richter & Hampton LLP
- Main IPC: C07D317/00
- IPC: C07D317/00 ; C07D411/04 ; A61K31/7072 ; C07D307/20 ; C07D307/33 ; C07D317/30 ; C07D405/04 ; C07H19/06 ; C07H15/203 ; C07D407/04

Abstract:
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.
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