2,2-Dimethyl-4-oxo-4-(4-n-propylphenyl)butyric acid

3-Methyl-5-oxo-5-(2,4,5-trimethylphenyl)valeric acid

5-(3,5-Dimethyl-4-methoxyphenyl)-3-methyl-5-oxovaleric acid

4-(5-Chloro-2-thienyl)-2,2-dimethyl-4-oxobutyric acid

5-(3-Bromo-2-thienyl)-3-methyl-5-oxovaleric acid

5-(3,4-Dimethylphenyl)-3-methyl-5-oxovaleric acid

5-(5-Fluoro-2-methylphenyl)-3-methyl-5-oxovaleric acid

5-(5-Methoxy-2-methylphenyl)-3-methyl-5-oxovaleric acid

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

4-[4-(2-Methoxyethoxy)phenyl]-4-oxobutyric acid

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

ethyl 5-(3-bromophenyl)-5-oxovalerate

Ethyl 7-(4-fluorophenyl)-7-oxoheptanoate

Ethyl 6-(4-chlorophenyl)-6-oxohexanoate

ethyl 7-(3,5-ditrifluoromethylphenyl)-7-oxoheptanoate