6-(2-iodophenyl)-6-oxohexanoic acid

4-(2,5-Dichlorophenyl)-4-oxobutyric acid

5-oxo-5-(4-n-pentylphenyl)valeric 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