Ethyl 6-(2-Chloro-4,5-difluorophenyl)-6-oxohexanoate

Ethyl 7-(3,4,5-trichlorophenyl)-7-oxoheptanoate

Ethyl 7-(2,4,5-trimethoxyphenyl)-7-oxoheptanoate

Ethyl 8-(4-n-Propylphenyl)-8-oxooctanoate

Ethyl 5-(5-Chloro-2-thienyl)-5-oxovalerate

Ethyl 4-[3,4-(Ethylenedioxy)phenyl]-4-oxobutanoate

Ethyl 4-(3-Fluoro-2-methylphenyl)-4-oxobutanoate

Ethyl 4-(3-Chloro-5-fluorophenyl)-4-oxobutanoate

Ethyl 5-(3-Chloro-4-methylphenyl)-5-oxovalerate

ethyl 8-(2-chlorophenyl)-8-oxooctanoate