上游原料
5-isopropyl 3-methyl 2-cyano-6-methyl-4-(3-nitrophenyl)-1,4-dihydro-3,5-pyridinedicarboxylate2-Cyano-5-(isopropoxycarbonyl)-6-methyl-4-(3-nitrophenyl)-1,4-dihydropyridine-3-carboxylic acid lithium salt5-isopropyl 3-methyl 2-cyano-6-methyl-4-(3-nitrophenyl)-1,4-dihydro-3,5-pyridinedicarboxylate5-(tert-butyl) 3-methyl 2-cyano-6-methyl-4-(3-nitrophenyl)-1,4-dihydro-3,5-pyridinedicarboxylate6-Cyano-5-(methoxycarbonyl)-2-methyl-4-(3-nitrophenyl)-1,4-dihydro-3-pyridinecarboxylic acid6-Cyano-5-(methoxycarbonyl)-2-methyl-4-phenyl-1,4-dihydro-3-pyridinecarboxylic acid(4R)-6-Cyano-5-(methoxycarbonyl)-2-methyl-4-(3-nitrophenyl)-1,4-dihydro-3-pyridinecarboxylic acid(4S)-6-Cyano-5-(methoxycarbonyl)-2-methyl-4-(3-nitrophenyl)-1,4-dihydro-3-pyridinecarboxylic acidisopropyl (Z)-2-acetyl-3-(3-nitrophenyl)-2-propenoate3-Nitrobenzaldehydeisopropyl 3-oxobutanoate; Isopropyl acetoacetatemethyl (E)-3-amino-4,4-dimethoxy-2-butenoate5-isopropyl 3-methyl 2-(dimethoxymethyl)-6-methyl-4-(3-nitrophenyl)-1,4-dihydro-3,5-pyridinedicarboxylate5-isopropyl 3-methyl 2-formyl-6-methyl-4-(3-nitrophenyl)-1,4-dihydro-3,5-pyridinedicarboxylate