SUBSTANTIALLY PURE OLMESARTAN MEDOXOMIL AND PROCESS FOR ITS PREPARATION

摘要

A process for purifying olmesartan medoxomil is provided comprising (a) dissolving olmesartan medoxomil in a solvent system comprising a ketone and at least one solvent selected from the group consisting of an alcohol-containing solvent, an ester-containing solvent and mixtures thereof to obtain a solution; and (b) recovering substantially pure olmesartan medoxomil. Also disclosed is substantially pure olmesartan medoxomil and pharmaceutical compositions containing same.