4-(3,5-Dimethyl-4-methoxyphenyl)-4-oxobutyric acid

7-(1-naphthyl)-7-oxoheptanoic acid

7-oxo-7-(9-Phenanthryl)heptanoic acid

8-oxo-8-(9-Phenanthryl)octanoic acid

8-(2-fluorophenyl)-8-oxooctanoic acid

2,2-Dimethyl-4-(2-naphthyl)-4-oxobutyric acid

8-cyclopentyl-8-oxooctanoic acid

6-Cyclobutyl-6-oxohexanoic acid

7,7-Dimethyl-6-oxooctanoic acid

7-oxoundecanoic acid

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