ethyl 7-(2-methylphenyl)-7-oxoheptanoate

Ethyl 5-(3-fluoro-4-methylphenyl)-5-oxovalerate

Ethyl 5-(1-naphthyl)-5-oxovalerate

Ethyl 5-oxo-5-(9-Phenanthryl)valerate

ethyl 6-(2-naphthyl)-6-oxohexanoate

Ethyl 5-(2,3-difluorophenyl)-5-oxovalerate

ethyl 5-(2,5-difluorophenyl)-5-oxovalerate

ethyl 5-(2,6-difluorophenyl)-5-oxovalerate

Ethyl 7-(3-cyanophenyl)-7-oxoheptanoate

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

ethyl 2,2-dimethyl-4-oxo-4-(3,4,5-trifluorophenyl)butyrate