2-acetyl-2-(3-oxobutyl)cyclopentan-1-one

5,5-dimethyl-2-(3-oxobutyl)cyclohexane-1,3-dione

1-[4-(甲硫基)苯基]-1,4-戊烷二酮

5-methylhexa-3,5-dien-2-one

5-methylhepta-3,5-dien-2-one