Ethyl 4-(3,5-dimethyl-4-methoxyphenyl)-4-oxobutyrate

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

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

ethyl 8-(3-fluorophenyl)-8-oxooctanoate

ethyl 8-(3,4-difluorophenyl)-8-oxooctanoate

ethyl 4-(2-methoxyphenyl)-4-oxobutyrate

ethyl 7-(1-naphthyl)-7-oxoheptanoate

Ethyl 4-(1-naphthyl)-4-oxobutyrate

Ethyl 4-(2,6-difluorophenyl)-4-oxobutyrate

ethyl 7-(2-fluorophenyl)-7-oxoheptanoate

Ethyl-4-(4-cyanophenyl)-4-oxobutyrate