Hydroxydehydro Nifedipine Carboxylate

4-(2-Nitrophenyl)-2-hydroxymethyl-5-methoxycarbonyl -6-methylpyridine-3-carboxylic Acid

2-(Hydroxymethyl)-6-methyl-4-(2-nitrophenyl)-3,5-pyridinedicarboxylic Acid 5-Methyl Ester