6-(4-Ethylphenyl)-6-oxohexanoic acid

8-(2,4-Dimethoxyphenyl)-8-oxooctanoic acid

4-(2-Methyl-5-fluorophenyl)-4-oxobutyric acid

6-[3-(N,N-Dimethylamino)phenyl]-6-oxohexanoic acid

7-(2-Chloro-4-fluorophenyl)-7-oxoheptanoic acid

7-(4-Chloro-2-fluorophenyl)-7-oxoheptanoic acid

8-(5-Chloro-2-methoxyphenyl)-8-oxooctanoic acid

7-(2-Chloro-4,5-difluorophenyl)-7-oxoheptanoic acid

6-(2,4,5-trimethoxyphenyl)-6-oxohexanoic acid

7-(4-n-Butylphenyl)-7-oxoheptanoic acid

4-(4-tert-Butyl-2,6-dimethylphenyl)-4-oxobutyric acid