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

ethyl 5-(3,4-dimethylphenyl)-5-oxovalerate

ethyl 7-(2-bromophenyl)-7-oxoheptanoate

Ethyl 5-(2-methylphenyl)-5-oxovalerate

ethyl 6-(4-methylphenyl)-6-oxohexanoate

ethyl 2,2-dimethyl-4-(3,5-dimethylphenyl)-4-oxobutyrate

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

ethyl 5-(3,4-difluorophenyl)-5-oxovalerate

Ethyl 5-oxo-5-(3,4,5-trifluorophenyl)valerate

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