1-methylpyridin-1-ium-4-carbaldehyde,iodide

2-(4-氯苯基)-1-(4-吡啶)乙酮

4-(4-fluorophenyl)-5-pyridin-4-yl-1,3-oxazole

5-[hydroxy(1H-pyridin-4-ylidene)methyl]-3-nitrocyclohexa-3,5-diene-1,2-dione

4-丁酰基吡啶