Ethyl 8-(4-Chloro-2-fluorophenyl)-8-oxooctanoate

Ethyl 7-(2-Chloro-4-(methylthio)phenyl)-7-oxoheptanoate

Ethyl 8-(2-Chloro-4,5-difluorophenyl)-8-oxooctanoate

Ethyl 6-(3,4,5-trichlorophenyl)-6-oxohexanoate

Ethyl 5-(2,3,4-trimethoxyphenyl)-5-oxovalerate

Ethyl 7-(4-n-Propylphenyl)-7-oxoheptanoate

Ethyl 4-(3-Bromo-2-thienyl)-4-oxobutanoate

Ethyl 5-[3,4-(methylenedioxy)phenyl]-5-oxovalerate

Ethyl 4-(4-Methoxy-2-methylphenyl)-4-oxobutanoate

ethyl 4-[4-(2-Methoxyethoxy)phenyl]-4-oxobutyrate

Ethyl 4-(2-chlorophenyl)-4-oxobutyrate