3,5,6-三-2-吡啶基-1,2,4-三嗪

3-(2-吡啶基)-5-苯基-1,2,4-三唑

2-(3-甲基-1H-1,2,4-噻唑-5-基)吡啶

3-pyridin-2-yl-1,2,4-triazine

5-(2-吡啶基)-1H-四唑