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

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

6-(2-chlorophenyl)-6-oxohexanoic acid

Ethyl 4-(3-bromophenyl)-4-oxobutyrate

Ethyl 7-(4-chlorophenyl)-7-oxoheptanoate

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

Ethyl 4-(3,4-dimethylphenyl)-4-oxobutyrate

Ethyl 4-(2-methylphenyl)-4-oxobutyrate

ethyl 8-(3-methylphenyl)-8-oxooctanoate

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

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