A PROCESS FOR PREPARING [1S- ]1-ALPHA, 2-ALPHA, 3-BETA (1S*, 2R*) 5-BETA] ]-3- [7- [2- (3, 4-DIF LUOROPHENYL) -CYCLOPROPYLAMINO]- 5- (PROPYLTHIO) -3H-1, 2, 3-TRIAZOLO [4, 5-D]PYRIMIDIN-3-YL]-5- (2- HYDROXYETHOXY) CYCLOPENTANE-1, 2-DIOL AND TO ITS INTERMEDIATES

摘要

The present invention is directed to a process for preparing [1S-[1alpha,2alpha,3beta(1S*,2R*),5beta]]-3-[7-[2-(3,4-difluorophenyl)-cyclopropylamino]-5-(propylthio)-3H-1,2,3-triazolo[4,5-d]pyrimidin-3-yl]-5-(2-hydroxyethoxy)cyclopentane-1,2-diol and to intermediates useful in the process.