ethyl 5-(3,4-dimethoxyphenyl)-5-oxovalerate

Ethyl 7-[4-(N,N-Diethylamino)phenyl]-7-oxoheptanoate

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

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

Ethyl 6-(5-Chloro-2-methoxyphenyl)-6-oxohexanoate

Ethyl 7-(2-Chloro-6-fluorophenyl)-7-oxoheptanoate

Ethyl 8-(2-Chloro-6-fluorophenyl)-8-oxooctanoate

Ethyl 4-(2,3,4,5-tetrafluorophenyl)-4-oxobutanoate

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

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

Ethyl 4-(4-n-Butylphenyl)-4-oxobutanoate