PREPARATION OF ALKYL-SUBSTITUTED 2-DEOXY-2-FLUORO-D-RIBOFURANOSYL PYRIMIDINES AND PURINES AND THEIR DERIVATIVES
申请人:Wang Peiyuan
公开号:US20100234585A1
公开(公告)日:2010-09-16
The present invention provides (i) a process for preparing a 2-deoxy-2-fluoro-2-methyl-D-ribonolactone derivative, (ii) conversion of the lactone to nucleosides with potent anti-HCV activity, and their analogues, and (iii) a method to prepare the anti-HCV nucleosides containing the 2-deoxy-2-fluoro-2-C-methyl-β-D-ribofuranosyl nucleosides from a preformed, preferably naturally-occurring, nucleoside.
A practical synthesis of (2R)-3,5-di-O-benzoyl-2-fluoro-2-C-methyl-d-ribono-γ-lactone
作者:Pingsheng Zhang、Hans Iding、Miall Cedilote、Stephan Brunner、Thomas Williamson、Thomas P. Cleary
DOI:10.1016/j.tetasy.2009.02.006
日期:2009.2
The title compound was synthesized in 23% overall yield using only one purification in four chemical steps. The key features of this practical synthesis include an asymmetric aldol condensation and an enzymatic hydrolysis to remove the major undesired isomer. (C) 2009 Elsevier Ltd. All rights reserved.