5-Oxo-5-(4-pyridyl)valeric acid

8-oxo-8-(2-trifluoromethylphenyl)octanoic acid

7-oxo-7-(2-trifluoromethylphenyl)heptanoic acid

8-oxo-8-(3-trifluoromethylphenyl)octanoic acid

8-(2,3-dichlorophenyl)-8-oxooctanoic acid

8-(2,5-dichlorophenyl)-8-oxooctanoic acid

7-oxo-7-(4-n-pentylphenyl)heptanoic acid

6-(4-Ethoxyphenyl)-6-oxohexanoic acid

4-oxo-4-(4-pentyloxyphenyl)butyric acid

6-(4-hexyloxyphenyl)-6-oxohexanoic acid

7-(2,4-Dimethoxyphenyl)-7-oxoheptanoic acid