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

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

Ethyl 5-(2,3,4-trimethoxyphenyl)-5-oxovalerate

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

Ethyl 6-(4-n-Propylphenyl)-6-oxohexanoate

Ethyl 5-(3-Ethoxyphenyl)-5-oxovalerate

Ethyl 4-(2,4,6-Trimethylphenyl)-4-oxobutanoate

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

Ethyl 4-(3-Fluoro-2-methylphenyl)-4-oxobutanoate

Ethyl 4-(3-fluoro-4-methoxyphenyl)-4-oxobutanoate

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