乙炔

1-oxido-2-piperidin-1-ylpyridin-1-ium

1,1'-(1-(pyridin-2-yl)piperidine-2,6-diyl)bis(1H-benzo[d][1,2,3]triazole)

2,3-dihydro-[1,3]thiazolo[3,2-a]pyridin-4-ium,bromide

3-chloro-2-(piperidin-1-yl)pyridine