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

ethyl 8-(2-methylphenyl)-8-oxooctanoate

ethyl 5-(3,5-dichlorophenyl)-5-oxovalerate

ethyl 8-(3-fluorophenyl)-8-oxooctanoate

ethyl 6-(3,5-difluorophenyl)-6-oxohexanoate

ethyl 4-oxo-4-(3-phenoxyphenyl)butyrate

Ethyl 5-(3-fluoro-4-methylphenyl)-5-oxovalerate

Ethyl 5-(1-naphthyl)-5-oxovalerate

Ethyl 5-oxo-5-(9-Phenanthryl)valerate

ethyl 6-(2-naphthyl)-6-oxohexanoate

Ethyl 5-(2,3-difluorophenyl)-5-oxovalerate