6-甲基-2-氧代-1,2-二氢-3-吡啶甲酰氯

6-methyl-2-oxo-1H-pyridine-3-carbohydrazide

6-(2,2-diphenylethenyl)-2-oxo-1H-pyridine-3-carboxylic acid

3-(imidazole-1-carbonyl)-6-methyl-1H-pyridin-2-one

5-溴-2-羟基-6-甲基吡啶-3-羧酸