2,4,5-tris(2-pyridyl)imidazole

N-(3-(2-pyridyl)imidazo[1,5-a]pyridine)picolinamidine

2,4,6-三(2-吡啶基)三嗪

N'-(pyridin-2-ylmethyl)ethane-1,2-diamine

2-[[bis(pyridin-2-ylmethyl)amino]methyl]benzenethiol