5,5-Dimethyl-4-oxohexanoic acid

4-Oxooctanoic acid

7-Oxo-nonanoic acid

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

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

6-(3,4-Dichlorophenyl)-6-oxohexanoic acid

6-Methyl-5-oxoheptanoic acid

6-(3-iodophenyl)-6-oxohexanoic acid

8-(4-iodophenyl)-8-octanoic acid

6-Oxo-6-(3-trifluoromethylphenyl)hexanoic acid