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

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

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

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

Ethyl 6-(4-bromophenyl)-6-oxohexanoate

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

ethyl 8-(2,5-dimethylphenyl)-8-oxooctanoate

Ethyl 7-(4-methoxyphenyl)-7-oxoheptanoate

ethyl 6-(3,5-dimethyl-4-methoxyphenyl)-6-oxohexanoate

ethyl 7-(3-methylphenyl)-7-oxoheptanoate

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