ethyl 8-oxo-8-(2-trifluoromethylphenyl)octanoate

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

ethyl 5-(4-isopropylphenyl)-5-oxovalerate

ethyl 6-(4-hexylphenyl)-6-oxohexanoate

Ethyl 4-(4-ethoxyphenyl)-4-oxobutyrate

ethyl 8-oxo-8-(4-pentyloxyphenyl)octanoate

ethyl 5-(4-heptyloxyphenyl)-5-oxovalerate

ethyl 5-(2,5-dimethoxyphenyl)-5-oxovalerate

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

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

Ethyl 7-(4-methoxy-3-nitrophenyl)-7-oxoheptanoate