3-硝基-2-吡啶肼

6-乙氧基-3-吡啶醇

比卡林

(3R,4S)-3-hydroxy-2,2-dimethyl-4-(2-oxopyridin-1-yl)-3,4-dihydrochromene-6-carbonitrile

4-acetylphenylpyridinone