4-(1-Oxo-2-phenylethyl)benzoic acid

5-Methyl-4-oxohexanoic acid

7-(2-iodophenyl)-7-oxoheptanoic acid

6-oxo-6-(2-trifluoromethylphenyl)hexanoic acid

4-Oxo-4-(3-Trifluoromethylphenyl)butyric acid

7-(2,3-dichlorophenyl)-7-oxoheptanoic acid

6-(2,4-Dichlorophenyl)-6-oxohexanoic acid

8-(4-t-Butylphenyl)-8-oxooctanoic acid

5-(2-Ethoxyphenyl)-5-oxovaleric acid

7-(4-ethoxyphenyl)-7-oxoheptanoic acid

4-(4-hexyloxyphenyl)-4-oxobutyric acid