diethyl 4-(4,5-dimethoxy-2-nitrophenyl)-1,4-dihydro-2,6-dimethylpyridine-3,5-dicarboxylate

4-(4,5-Dimethoxy-2-nitrophenyl)-1,4-dihydro-2,6-dimethyl-3,5-pyridinedicarboxylic acid diethyl ester