ethyl 7-(2,3-dimethoxyphenyl)-7-oxoheptanoate

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

Ethyl 4-(2-Chloro-4-(methylthio)phenyl)-4-oxobutanoate

Ethyl 8-(2-Chloro-4-(methylthio)phenyl)-8-oxooctanoate

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

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

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

Ethyl 8-(4-n-Butylphenyl)-8-oxooctanoate

Ethyl 5-(3-Methyl-2-thienyl)-5-oxovalerate

Ethyl 5-(2,4,6-Trimethylphenyl)-5-oxovalerate

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