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

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

Ethyl 2,2-dimethyl-4-(4-methoxyphenyl)-4-oxobutyrate

ethyl 7-cyclohexyl-7-oxoheptanoate

Ethyl 7-cyclopropyl-7-oxoheptanoate