3-氰基吡啶

烟酰胺

3-pyridin-3-yl-2H-1,2,4-oxadiazole-5-thione

3-(5-氯甲基-[1,2,4]噁二唑-3-基)吡啶

3-吡啶-4-基-1,2,4-噁二唑-5-羧酸乙酯