SYNTHESIS OF PRASUGREL AND POLYMORPHS OF INTERMEDIATES THEREOF

摘要

The present invention relates to crystalline 5-triphenylmethyl-4,5,6,7- tetrahydrothieno[3,2-c]pyridine characterized by specific powder X-ray diffraction peaks. The present invention further relates to an improved process for preparation of Prasugrel and its polymorphs. More particularly, the present invention relates to the process for the preparation of Prasugrel and its intermediates in crystalline form.