ethyl 7-(2-iodophenyl)-7-oxoheptanoate

ethyl 8-(4-nitrophenyl)-8-oxooctanoate

Ethyl 8-oxo-8-(4-trifluoromethylphenyl)octanoate

ethyl 7-(4-ethylphenyl)-7-oxoheptanoate

ethyl 8-(4-ethylphenyl)-8-oxooctanoate

ethyl 5-oxo-5-(4-n-pentylphenyl)valerate

ethyl 4-(2-ethoxyphenyl)-4-oxobutyrate

Ethyl 7-oxo-7-(4-isopropoxyphenyl)heptanoate

ethyl 7-(4-hexyloxyphenyl)-7-oxoheptanoate

ethyl 6-(2,3-dimethoxyphenyl)-6-oxohexanoate

ethyl 4-(2,6-dimethoxyphenyl)-4-oxobutyrate