Losartan Aldehyde N2-Trityl Impurity

: N-Trityl Losartan Carboxaldehyde; N2-Trityl Losartan Aldehyde; 2-Butyl-4-chloro-1-[p-(2-(triphenylmethyl)-2H-tetrazol-5-ylphenyl)benzyl] imidazole-5-formaldehyde; 2-Butyl-4-chloro-1-[[2’-[2-(triphenylmethyl)-2H-tetrazol-5-yl][1,1’-biphenyl]-4-yl]methyl]-1H-imidazole-5-carboxaldehyde;