2-(4-吡啶基)-4-氨基嘧啶

(2-methylpyrrolidin-1-yl)-(5-pyridin-4-ylpyridin-3-yl)methanone

4-[4-fluoro-3-(trifluoromethyl)phenyl]pyridine

4-(4-Fluorophenyl)pyridine

4-azidopyridine