Ethyl 5-(2-acetoxyphenyl)-5-oxovalerate

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

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

Ethyl 7-(2-Chloro-4-fluorophenyl)-7-oxoheptanoate

Ethyl 8-(5-Chloro-2-methoxyphenyl)-8-oxooctanoate

Ethyl 5-(2-Chloro-6-fluorophenyl)-5-oxovalerate

Ethyl 8-(2,3,4,5-tetrafluorophenyl)-8-oxooctanoate

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

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

Ethyl 5-(4-n-Propylphenyl)-5-oxovalerate

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

Ethyl 5-[4-(Ethylthio)phenyl]-5-oxovalerate

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

Ethyl 5-(4-Methoxy-2-methylphenyl)-5-oxovalerate

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