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

Ethyl 8-(2-Chloro-4,5-difluorophenyl)-8-oxooctanoate

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

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

Ethyl 6-(2,3,4-trimethoxyphenyl)-6-oxohexanoate

Ethyl 5-[2-(Methylthio)phenyl]-5-oxovalerate

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

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

Ethyl 5-[3,4-(Ethylenedioxy)phenyl]-5-oxovalerate

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

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