1-piperidin-4-ylpyrrolidine-2,5-dione

1-(pyridin-4-yl)-pyrrolidin-2,5-dione

4-异硫代氰酰基吡啶(9ci)

4-(1H-pyrrol-3-yl)pyridine

4-氨基-1-甲基-吡啶鎓碘化物