5-(3-Bromo-2-thienyl)-3-methyl-5-oxovaleric acid

5-(2-chlorophenyl)-5-oxovaleric acid

ethyl 8-(3-bromophenyl)-8-oxooctanoate

Ethyl 6-(4-chlorophenyl)-6-oxohexanoate

Ethyl 7-oxo-7-phenylheptanoate

Ethyl 6-(4-methoxyphenyl)-6-oxohexanoate

Ethyl 7-(3,5-dimethyl-4-methoxyphenyl)-7-oxoheptanoate

ethyl 6-(4-methylphenyl)-6-oxohexanoate

Ethyl 4-(3-methoxyphenyl)-4-oxobutyrate

ethyl 6-(3,5-difluorophenyl)-6-oxohexanoate

ethyl 4-(3-fluoro-4-methylphenyl)-4-oxobutyrate