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

5-(2,5-Dimethoxyphenyl)-3-methyl-5-oxovaleric acid

4-(3,4-Dimethoxyphenyl)-2,2-dimethyl-4-oxobutyric acid

4-(3-Chloro-4-methylphenyl)-2,2-Dimethyl-4-oxobutyric acid

6-[4-(2-Methoxyethoxy)phenyl]-6-oxohexanoic acid

ethyl 8-(4-bromophenyl)-8-oxooctanoate

ethyl 6-(3-bromophenyl)-6-oxohexanoate

ethyl 7-(3-bromophenyl)-7-oxoheptanoate

ethyl 7-(2,5-dimethylphenyl)-7-oxoheptanoate

ethyl 8-(3,5-ditrifluoromethylphenyl)-8-oxooctanoate

ethyl 8-oxo-8-phenyloctanoate