NOVEL CRYSTALLINE HYDRATE, AMORPHOUS AND POLYMORPHIC FORMS OF DIHYDRO-BENZOXAZOLE-6-YL-ACETAMIDE DERIVATIVE AND PROCESSES FOR THEIR PREPARATION

摘要

The invention relates to novel crystalline hydrate, amorphous and crystalline polymorphic forms of 2-[4-(4-Fluoro-benzyl)-piperidine-1-yl]-2-oxo-N-(2-oxo-2,3-dihydro-benzoxazole-6-yl)-acetamide (I) (radiprodil). Processes for the preparation of these forms, compositions containing these forms, and methods of use thereof are also described.