ethyl 6-(3,5-dimethyl-4-methoxyphenyl)-6-oxohexanoate

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

ethyl 5-oxo-5-(3-phenoxyphenyl)valerate

ethyl 7-(2-methoxyphenyl)-7-oxoheptanoate

ethyl 7-(2-naphthyl)-7-oxoheptanoate

Ethyl 4-(1-naphthyl)-4-oxobutyrate

Ethyl 4-(2,3-difluorophenyl)-4-oxobutyrate

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

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

ethyl 8-(2-fluorophenyl)-8-oxooctanoate

ethyl 6-(4-biphenyl)-6-oxohexanoate