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

ethyl 8-(2,5-difluorophenyl)-8-oxooctanoate

Ethyl-5-(3-cyanophenyl)-5-oxovalerate

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

ethyl 8-(4-biphenyl)-8-oxooctanoate

ethyl 2,2-dimethyl-4-(3-methoxyphenyl)-4-oxobutyrate

ethyl 2,2-dimethyl-4-(2-naphthyl)-4-oxobutyrate

ethyl 7-cyclobutyl-7-oxoheptanoate

Ethyl 7-cyclopropyl-7-oxoheptanoate

ethyl 8,8-dimethyl-7-oxononanoate

Ethyl 7-oxododecanoate