5-(2-(Ethylthio)phenyl)-3-methyl-5-oxovaleric acid

Ethyl 7-(4-bromophenyl)-7-oxoheptanoate

Ethyl 4-(4-fluorophenyl)-4-oxobutyrate

Ethyl 8-(4-chlorophenyl)-8-oxooctanoate

Ethyl 4-(3,5-ditrifluoromethylphenyl)-4-oxobutyrate

Ethyl 7-oxo-7-phenylheptanoate

ethyl 8-(4-methoxyphenyl)-8-oxooctanoate

Ethyl 7-(3,4-dimethylphenyl)-7-oxoheptanoate

ethyl 8-(2-bromophenyl)-8-oxooctanoate

ethyl 7-(3-methylphenyl)-7-oxoheptanoate

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