5-methoxycarbonyl-2,6-dimethyl-4-(3-nitrophenyl)pyridine-3-carboxylic acid

2,6-二甲基-5-甲氧羰基-4-(3-硝基苯基)-1,4-二氢吡啶-3-羧酸

methyl 2-methyl-4-(3-nitrophenyl)-5-oxo-7H-furo[3,4-b]pyridine-3-carboxylate

ethyl 2-methyl-4-(3-nitrophenyl)-5-oxo-5,7-dihydrofuro[3,4-b]pyridine-3-carboxylate

(R)-2,6-Dimethyl-4-(3-nitro-phenyl)-1,4-dihydro-pyridine-3,5-dicarboxylic acid 3-((2S,3R,4S,5S,6S)-6-carboxy-3,4,5-trihydroxy-tetrahydro-pyran-2-yl) ester 5-methyl ester