ethyl 5-(2,6-dimethoxyphenyl)-5-oxovalerate

Ethyl 7-(2,3,4-trimethoxyphenyl)-7-oxoheptanoate

Ethyl 4-[2-(Methylthio)phenyl]-4-oxobutanoate

Ethyl 4-(5-Chloro-2-thienyl)-4-oxobutanoate

Ethyl 4-[3,4-(Methylenedioxy)phenyl]-4-oxobutanoate

Ethyl 5-[3,4-(methylenedioxy)phenyl]-5-oxovalerate

Ethyl 4-(5-Fluoro-2-methoxyphenyl)-4-oxobutanoate

Ethyl 5-(3-Fluoro-2-methylphenyl)-5-oxovalerate

3,4-Difluorobenzophenone

3,4-二氟二苯酮

Ethyl 5-(3-Chloro-4-fluorophenyl)-5-oxovalerate

ethyl 7-(2-chlorophenyl)-7-oxoheptanoate