4-(4-Iodophenyl)-4-oxobutyric acid

6-(4-hexylphenyl)-6-oxohexanoic acid

4-oxo-4-(4-n-propoxyphenyl)butyric acid

4-Oxo-4-(4-isopropoxyphenyl)butyric acid

7-(4-heptyloxyphenyl)-7-oxoheptanoic acid

7-(2,5-Dimethoxyphenyl)-7-oxoheptanoic acid

7-(3,5-Dimethoxyphenyl)-7-oxoheptanoic acid

4-(3,5-Dimethoxyphenyl)-4-oxobutyric acid

8-[4-(N,N-Diethylamino)phenyl]-8-oxooctanoic acid

4-(3-Chloro-6-methoxyphenyl)-4-oxobutyric acid

5-(4-Chloro-2-methoxyphenyl)-5-oxovaleric acid