ethyl 8-(4-methoxyphenyl)-8-oxooctanoate

Ethyl 5-(2-bromophenyl)-5-oxovalerate

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

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

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

ethyl 6-(3,4-difluorophenyl)-6-oxohexanoate

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

ethyl 4-(2-methoxyphenyl)-4-oxobutyrate

ethyl 6-(1-naphthyl)-6-oxohexanoate

Ethyl 5-(2-naphthyl)-5-oxovalerate

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

ethyl 6-(2-fluorophenyl)-6-oxohexanoate

ethyl 7-(2,6-difluorophenyl)-7-oxoheptanoate

Ethyl-5-(4-cyanophenyl)-5-oxovalerate

Ethyl 5-(4-biphenyl)-5-oxovalerate