NOVEL POLYMORPHS OF AZILSARTAN

摘要

The present invention provides a novel crystalline form of azilsartan acid, process for its preparation and pharmaceutical compositions comprising it. The present invention also provides a novel crystalline form of azilsartan medoxomil potassium, process for its preparation and pharmaceutical compositions comprising it. Azilsartan medoxomil is chemically (5-methyl-2-oxo-1,3-dioxol-4-yl) methyl-2-ethoxy-1-([2'-(5-oxo-4,5-dihydro-1,2,4-oxadiazol-3-yl)biphenyl-4-yl]methyl)-1 H-benzimidazole-7-carboxylate. Azilsartan is an angiotensin II receptor antagonist used in the treatment of hypertension.