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

Ethyl 8-(3,4,5-trimethoxyphenyl)-8-oxooctanoate

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

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

Ethyl 4-(3-Methyl-2-thienyl)-4-oxobutanoate

Ethyl 4-(3-Bromo-2-thienyl)-4-oxobutanoate

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

Ethyl 4-(2,3,5,6-Tetramethylphenyl)-4-oxobutanoate

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

Ethyl 5-(5-Fluoro-2-methoxyphenyl)-5-oxovalerate

Ethyl 5-(2-Methoxy-5-methylphenyl)-5-oxovalerate