ethyl 4-(3,4-dimethoxyphenyl)-4-oxobutyrate

Ethyl 8-(4-methoxy-3-nitrophenyl)-8-oxooctanoate

Ethyl 6-[4-(N,N-Dimethylamino)phenyl]-6-oxohexanoate

Ethyl 5-(2-Chloro-4-fluorophenyl)-5-oxovalerate

Ethyl 5-(4-Chloro-2-methoxyphenyl)-5-oxovalerate

Ethyl 7-(4-Chloro-2-methoxyphenyl)-7-oxoheptanoate

Ethyl 7-(5-Chloro-2-methoxyphenyl)-7-oxoheptanoate

Ethyl 5-(2-Chloro-6-fluorophenyl)-5-oxovalerate

Ethyl 8-(2-Chloro-4,5-difluorophenyl)-8-oxooctanoate

Ethyl 5-(3,4,5-trimethoxyphenyl)-5-oxovalerate

Ethyl 4-(2,4,5-trimethoxyphenyl)-4-oxobutanoate