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

ethyl 7-(2,3-difluorophenyl)-7-oxoheptanoate

ethyl 6-(2-fluorophenyl)-6-oxohexanoate

Ethyl 4-(3-cyanophenyl)-4-oxobutyrate

ethyl 7-(4-biphenyl)-7-oxoheptanoate

Ethyl 4-cyclohexyl-4-oxobutyrate

ethyl 6-cyclopentyl-6-oxohexanoate

Ethyl 8-oxodecanoate

Ethyl 7-oxododecanoate

Ethyl 3-(1,3-dioxan-2-yl)propionate

Ethyl 4-oxo-4-(4-pyridyl)butyrate