3-羟基-1-(2-羟基乙基)-2-甲基吡啶-4-酮

1-(3-aminopropyl)-2-methyl-3-phenylmethoxypyridin-4-one

3-羟基-2-甲基-4(1H)-吡啶酮

3-hydroxy-1-[6-(3-hydroxy-2-methyl-4-oxopyridin-1-yl)hexyl]-2-methylpyridin-4-one

3-methoxy-2-methylpyran-4-thione