2-羟甲基-3,4-二甲氧基吡啶

1-乙基-3-羟基-2-甲基吡啶-4-酮

1-[2-(diethylamino)ethyl]-3-hydroxy-2-methylpyridin-4-one

3-羟基-2-甲基-1-丙基吡啶-4-酮

3-hydroxy-2-methyl-1-propan-2-ylpyridin-4-one