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.