Ethyl 6-(2,5-difluorophenyl)-6-oxohexanoate

Ethyl 4-(2-fluorophenyl)-4-oxobutyrate

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

ethyl 7-cyclopentyl-7-oxoheptanoate

Ethyl 8-cyclopentyl-8-oxooctanoate

ethyl 8,8-dimethyl-7-oxononanoate

ethyl 8-oxotridecanoate

Ethyl 5-oxooctanoate

Ethyl 4-(1-oxo-2-phenylethyl)benzoate

ethyl 6-(3,4-dichlorophenyl)-6-oxohexanoate

Ethyl 4-(3-bromo-5-methylphenyl)-4-oxobutyrate