2-吡啶-4-苯并噁唑-5-胺

(4-乙炔基苯基)(4-吡啶基)甲酮

2-氨基-5-(4-吡啶基)-1,3,4-噻重氮

1H-1,2,4-Triazole-3-thiol, 5-(4-pyridyl)-

4-吡啶甲酰胺