ethyl 8-(4-heptyloxyphenyl)-8-oxooctanoate

Ethyl 7-(2,4-dimethoxyphenyl)-7-oxoheptanoate

ethyl 7-(3,4-dimethoxyphenyl)-7-oxoheptanoate

Ethyl 5-(4-methoxy-3-nitrophenyl)-5-oxovalerate

Ethyl 8-(4-methoxy-3-nitrophenyl)-8-oxooctanoate

Ethyl 8-[4-(N,N-Diethylamino)phenyl]-8-oxooctanoate

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

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

Ethyl 6-(2-Chloro-4-(methylthio)phenyl)-6-oxohexanoate

Ethyl 4-(2-Chloro-4,5-difluorophenyl)-4-oxobutanoate

Ethyl 7-(2,3,4,5-tetrafluorophenyl)-7-oxoheptanoate

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

Ethyl 4-(2,3,4-trimethoxyphenyl)-4-oxobutanoate

Ethyl 4-(4-n-Propylphenyl)-4-oxobutanoate

Ethyl 4-(5-Chloro-2-thienyl)-4-oxobutanoate