2,4-二羟基-6-甲基甲酸乙酯

1-吡啶-2-基-2-丙酮

5-oxo-4-[2]pyridyl-hexanenitrile

4-acetyl-4-[2]pyridyl-heptanedinitrile

6-羟基-2-甲基苯并恶唑