Ethyl 4-oxo-4-(9-Phenanthryl)butyrate

ethyl 4-(2,4-difluorophenyl)-4-oxobutyrate

ethyl 7-(2,4-difluorophenyl)-7-oxoheptanoate

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

Ethyl 6-(4-cyanophenyl)-6-oxohexanoate

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

Ethyl 5-cyclohexyl-5-oxovalerate

ethyl 6-cyclopentyl-6-oxohexanoate

Ethyl 6-cyclopropyl-6-oxohexanoate

Ethyl 8-oxododecanoate

Ethyl 6-oxononanoate

Ethyl 5-oxo-6,6,6-trifluorohexanoate

ethyl 2-(2-oxo-2-phenylethyl)benzoate

Ethyl 3-(2-oxopropyl)benzoate

ethyl 7-(3-bromo-4-methylphenyl)-7-oxoheptanoate