Lercanidipine EP Impurity C

: 1-[(3,3-diphenylpropyl)(methyl amino)]-2-methylpropan-2-yl methyl 2,6-dimethyl-4-(3-nitrophenyl)pyridine-3,5-dicarboxylate Hydrocloride;2,6-Dimethyl-4-(3-nitro-phenyl) pyridine-3,5-dicarboxylic acid-2[N-(3,3-diphenyl-propyl)-N-methylamino]-1,1-dimethyl ethylmethyl-5 methyl ester ;