4-(2,1,3-Benzoxadiazol-4-yl)-1,4-dihydro-2,6-dimethyl-5-nitro-3-pyridinecarboxylic acid isopropyl ester | 4β-(2,1,3-Benzoxadiazol-4-yl)-1,4-dihydro-2,6-dimethyl-5-nitropyridine-3-carboxylic acid isopropyl ester |
[4R,(-)]-4-(2,1,3-Benzoxadiazol-4-yl)-1,4-dihydro-2,6-dimethyl-5-nitro-3-pyridinecarboxylic acid isopropyl ester |