4-(4-fluorophenyl)-1H-pyridin-2-one

1-hydroxy-N-methylpyridin-4-imine

N,N-diethylpyridin-4-amine

3-(4-氯-2-吡啶)-2,3-二氢-2,2-二甲基-4H-1,3-苯并噁嗪-4-酮

4-(1-oxidopyridin-1-ium-4-yl)morpholine