Olmesartan Medoxomil Impurity 160

2-ethoxy-1- (4- (2- (4- (2-ethoxy-1- ((2'- (4- (2-ethoxy-1- ((2'- (4- (2-ethoxy-1- ((2'- (5-oxo-4,5-dihydro-1,2,4-oxadiazol-3-yl) -[1,1'-biphenyl]-4-yl) methyl) -1H-benzo[d]imidazole-7-carbonyl) -5-oxo-4,5-dihydro-1,2,4-oxadiazol-3-yl) -[1,1'-biphenyl]-4-yl) methyl) -1H-benzo[d]imidazole-7-carbonyl) -5-oxo-4,5-dihydro-1,2,4-oxadiazol-3-yl) -[1,1'-biphenyl]-4-yl) methyl) -1H-benzo[d]imidazole-7-carbonyl) -5-oxo-4,5-dihydro-1,2,4-oxadiazol-3-yl) cyclohepta-2,4,6-trien-1-yl) benzyl) -1H-benzo[d]imidazole-7-carboxylic acid