ethyl 7-(4-heptyloxyphenyl)-7-oxoheptanoate

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

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

ethyl 8-(3,4-dimethoxyphenyl)-8-oxooctanoate

Ethyl 8-[3-(N,N-Dimethylamino)phenyl]-8-oxooctanoate

Ethyl 6-[4-(N,N-Dimethylamino)phenyl]-6-oxohexanoate

Ethyl 5-[4-(N,N-Diethylamino)phenyl]-5-oxovalerate

Ethyl 6-(4-Chloro-2-fluorophenyl)-6-oxohexanoate

Ethyl 4-(5-Chloro-2-methoxyphenyl)-4-oxobutanoate

Ethyl 4-(2-Chloro-6-fluorophenyl)-4-oxobutanoate

Ethyl 8-(3,4,5-trichlorophenyl)-8-oxooctanoate

Ethyl 6-(2,3,4,5-tetrafluorophenyl)-6-oxohexanoate

Ethyl 6-(2,3,4-trimethoxyphenyl)-6-oxohexanoate

Ethyl 6-(4-n-Butylphenyl)-6-oxohexanoate

Ethyl 5-(3-Bromo-2-thienyl)-5-oxovalerate