Method of preparation of crystal forms of 4-(cyclopropylmethoxy)-n-(3,5-dichloro-1-oxidopyridyn-4-yl)-5-methoxyridine-2-carboxamide and cristal forms thereof

摘要

The present invention relates to a process of preparation of Crystal Forms of 4-(cyclopropylmethoxy)-N-(3,5-dichloro-1-oxidopyridin-4-yl)-5-methoxypyridine-2-carboxamide of formula (I), said Crystal Forms which are designated as Crystal Forms A to I A and their use as a medicament.