Ethyl 4-(3,5-ditrifluoromethylphenyl)-4-oxobutyrate

Ethyl 7-(3,4-dimethylphenyl)-7-oxoheptanoate

ethyl 6-(2-methylphenyl)-6-oxohexanoate

Ethyl 8-(4-methylphenyl)-8-oxooctanoate

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

Ethyl 4-(3,5-difluorophenyl)-4-oxobutyrate

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

Ethyl 6-(2-methoxyphenyl)-6-oxohexanoate

ethyl 8-(2,3-difluorophenyl)-8-oxooctanoate

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

ethyl 8-(2,6-difluorophenyl)-8-oxooctanoate