2,3-二溴-5-甲基吡啶

2-氨基-5-甲基吡啶

diethyl (2-amino-5-methylpyridin-3-yl)phosphonate

9-(1-羟基乙基)-7-甲基-2-(吗啉-4-基)-4H-吡啶并[1,2-a]嘧啶-4-酮

9-bromo-7-methyl-2-pyridin-4-ylpyrido[1,2-a]pyrimidin-4-one