哌啶-4-碳酰肼

N1-甲基-2-(4-吡啶羰基)肼-1-硫代甲酰胺

4-[5-[[(3-碘苯基)甲基]硫基]-1,3,4-恶二唑-2-基]吡啶

N-(亚甲基氨基)-4-吡啶甲酰胺

N-[(4-nitrophenyl)methylideneamino]pyridine-4-carboxamide