1-[[2'-(Aminocarbonyl)[1,1'-biphenyl]-4-yl]methyl]-2-ethoxy-1H-benzimidazole-7-carboxylic Acid Methyl Ester is an intermediate in the synthesis of Degadant-3 (D229206), which is an intermediate used in the preparation of azilsartan kamedoxomil for use as an angiotensin II receptor blocker. Azilsartan Impurity.