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-o-D-ribofuranosyl nucleosides from a preformed, preferably naturally-occurring, nucleoside.
本发明提供了(i)一种制备2-去氧-2-
氟-2-甲基-
D-核糖内酯衍
生物的过程,(ii)将内酯转化为具有强效抗HCV活性的核苷和它们的类似物,以及(iii)一种制备含2-去氧-2-
氟-2-C-甲基-o-
D-核糖呋喃核苷的抗HCV核苷的方法,该方法从预先形成的、最好是自然存在的核苷中进行。