ethyl 4-oxo-4-(3-phenoxyphenyl)butyrate

Ethyl 4-cyclohexyl-4-oxobutyrate

Ethyl 6-cyclohexyl-6-oxohexanoate

Ethyl 8-cyclobutyl-8-oxooctanoate

Ethyl 5,5-dimethyl-4-oxohexanoate

Ethyl 7-oxononanoate

Ethyl 6-oxodecanoate

Ethyl 6-oxoundecanoate

Ethyl 5-oxo-5-(2-pyridyl)valerate

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

Ethyl 3-(1-oxo-2-phenylethyl)benzoate