2-氨基吡啶

1,3-diphenyl-2-pyridin-2-ylguanidine

3-Phenyl-2-phenylimino-pyrido(1,2-a)-1,3,5-triazin-4-thion

N-Phenyl-N',N''-dipyrid-2-yl-guanidin

1-(4-nitrophenyl)-N-pyridin-2-ylmethanimine