RIBOFURANOSYL PURINE COMPOUND, PREPARATION METHOD THEREFOR, AND USE THEREOF

摘要

The present invention relates to the compounds of the formulae (I) and (I-1) and the process for preparing the same, uses of the compounds for the treatment of diseases associated with platelet aggregation and in the manufacture of a medicament for the treatment of diseases associated with platelet aggregation, and relates to a pharmaceutical composition and a pharmaceutical formulation containing the compounds, wherein the definitions of R 1 , R 2 , R 3 and R 2a in the formulae are the same as those in the description.