5,6,7-三甲基-1,8-萘啶-2-胺

3-hydroxy-3-methylpentane-2,4-dione

3-acetyl-3-methylheptane-2,6-dione

1,4,5,6-tetramethylpyrimidin-2-one

3,4-二甲基-3-戊烯-2-酮