ethyl 5-(2,4-dimethoxyphenyl)-5-oxovalerate

ethyl 4-(3,4-dimethoxyphenyl)-4-oxobutyrate

ethyl 8-(3,5-dimethoxyphenyl)-8-oxooctanoate

Ethyl 5-[3-(N,N-Dimethylamino)phenyl]-5-oxovalerate

Ethyl 4-[4-(N,N-Diethylamino)phenyl]-4-oxobutanoate

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

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

Ethyl 5-[2-Chloro-4-(methylthio)phenyl]-5-oxovalerate

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

Ethyl 4-(3,4,5-trimethoxyphenyl)-4-oxobutanoate

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

Ethyl 8-(2,3,4-trimethoxyphenyl)-8-oxooctanoate

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

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

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