4-Oxo-4-(3,4,5-trifluorophenyl)butyric acid

5-(4-fluoro-3-methylphenyl)-5-oxovaleric acid

6-(2-Methoxyphenyl)-6-oxohexanoic acid

8-(2-naphthyl)-8-oxooctanoic acid

6-Oxo-6-(9-Phenanthryl)hexanoic acid

4-(2,5-Difluorophenyl)-4-oxobutyric acid

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

8-(2,6-difluorophenyl)-8-oxooctanoic acid

6-(2-fluorophenyl)-6-oxohexanoic acid

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

2,2-dimethyl-4-(2-methoxyphenyl)-4-oxobutyric acid