5,6-二甲氧基-2-(4-吡啶基)亚甲基-1-茚酮

L-3-(4-吡啶基)-丙氨酸

4-吡啶基-4-丁醛

1-methyl-4-(2-phenylethenyl)pyridin-1-ium,iodide

4-[2-(3,5-dimethoxyphenyl)ethenyl]pyridine