2-methyl-3-methylidene-4-phenylpyrido[2,3-b]pyrazine

ethyl N-(2-anilinopyridin-3-yl)carbamate

ethyl N-[2-(N-acetylanilino)pyridin-3-yl]carbamate

N-(2-anilinopyridin-3-yl)formamide

2-methyl-3-phenylimidazo[4,5-b]pyridine