104305-93-3 2-(4-(Diphenylmethyl)-1-piperazinyl)ethylmethyl-2,6-dimethyl-4-(3-nitrophenyl)-3,5-pyridinedicarboxylate 3,5-Pyridinedicarboxylic acid, 2,6-dimethyl-4-(3-nitrophenyl)-, 2-(4-(diphenylmethyl)-1-piperazinyl)ethylmethyl ester Diphpetmednp