dimethyl 4-(3-nitrophenyl)-2,6-dimethyl-3,5-pyridinedicarboxylate, Nicardipine M (dehydro-desbenzylmethylaminoethyl,methyl ester), 3,5-pyridinedicarboxylic acid,2,6-dimethyl-4-(3-nitrophenyl)-,dimethyl ester, Dimethyl 2,6-dimethyl-4-(3-nitrophenyl)-3,5-pyridinedicarboxylate, dimethyl 2,6-dimethyl-4-(m-aminophenyl)pyridine-3,5-dicarboxylate,