ethyl 5-(3,4-dimethoxyphenyl)-5-oxovalerate

ethyl 5-(3,5-dimethoxyphenyl)-5-oxovalerate

Ethyl 4-[3-(N,N-Dimethylamino)phenyl]-4-oxobutanoate

Ethyl 7-[4-(N,N-Diethylamino)phenyl]-7-oxoheptanoate

Ethyl 4-(4-Chloro-2-fluorophenyl)-4-oxobutanoate

Ethyl 4-(2-Chloro-4-(methylthio)phenyl)-4-oxobutanoate

Ethyl 7-(2-Chloro-4-(methylthio)phenyl)-7-oxoheptanoate

Ethyl 6-(2-Chloro-4,5-difluorophenyl)-6-oxohexanoate

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

Ethyl 8-(3,4,5-trimethoxyphenyl)-8-oxooctanoate

Ethyl 4-(4-n-Butylphenyl)-4-oxobutanoate

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

Ethyl 5-(3-Ethoxyphenyl)-5-oxovalerate

Ethyl 4-(4-tert-Butyl-2,6-dimethylphenyl)-4-oxobutanoate

Ethyl 5-(2,3,4,5,6-Pentamethylphenyl)-5-oxovalerate