2,2-Dimethyl-4-(3,5-dimethylphenyl)-4-oxobutyric acid

6-(3-chlorophenyl)-6-oxohexanoic acid

8-(3,4-difluorophenyl)-8-oxooctanoic acid

4-(3-Fluoro-4-methylphenyl)-4-oxobutyric acid

7-(2-methoxyphenyl)-7-oxoheptanoic acid

4-(2-Methoxyphenyl)-4-oxobutyric acid

5-(2-Naphthyl)-5-oxovaleric acid

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

5-(2,5-difluorophenyl)-5-oxovaleric acid

4-(2,6-Difluorophenyl)-4-oxobutyric acid

6-(2,5-difluorophenyl)-6-oxohexanoic acid