3-(1R,2S)-2-methylamino-1-phenylpropyl 5-methyl 1,4-dihydro-2,6-dimethyl-(4R)-4-(3-nitrophenyl)pyridine-3,5-dicarboxylate
3-(1r,2s)-2-methylamino-1-phenylpropyl 5-methyl 1,4-dihydro-2,6-dimethyl-(4r)-4-(3-nitrophenyl)pyridine-3,5-dicarboxylate