6-Cyclopentyl-6-oxohexanoic acid

5-(4-bromo-2-methylphenyl)-5-oxovaleric acid

5-(2-iodophenyl)-5-oxovaleric acid

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

8-Oxo-8-(4-trifluoromethylphenyl)octanoic acid

6-(2,3-Dichlorophenyl)-6-oxohexanoic acid

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

6-oxo-6-(4-n-pentylphenyl)hexanoic acid

8-(4-ethoxyphenyl)-8-oxooctanoic acid

8-oxo-8-(4-n-propoxyphenyl)octanoic acid

6-oxo-6-(4-pentyloxyphenyl)hexanoic acid