2,3,4,9-四氢-1H-吡啶并[3,4-b]吲哚-1-酮

1,3-二氧并[4,5-B]吡啶

2-amino-N-(2-oxo-1H-pyridin-3-yl)benzamide

3-乙氧基吡啶-2-醇

2-(3-羟基-2-氧代吡啶-1(2H)-基)乙酸乙酯