6-(3,4,5-trimethoxyphenyl)-6-oxohexanoic acid

2,2-Dimethyl-4-(3-ethoxyphenyl)-4-oxobutyric acid

5-(3-Ethoxyphenyl)-3-methyl-5-oxovaleric acid

3-Methyl-5-oxo-5-(4-n-pentylphenyl)valeric acid

3-Methyl-5-oxo-5-(2,3,5,6-tetramethylphenyl)valeric acid

5-[3,4-(Ethylenedioxy)phenyl]-3-methyl-5-oxovaleric acid

4-(2,4-Dimethoxyphenyl)-2,2-dimethyl-4-oxobutyric acid

5-(4-Fluoro-3-methylphenyl)-3-methyl-5-oxovaleric acid

4-(4-Chloro-2-methylphenyl)-2,2-Dimethyl-4-oxobutyric acid

5-[4-(2-Methoxyethoxy)phenyl]-5-oxovaleric acid

Ethyl 4-(4-fluorophenyl)-4-oxobutyrate