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

7-(4-biphenyl)-7-oxoheptanoic acid

4-(3,5-Difluorophenyl)-2,2-dimethyl-4-oxobutyric acid

6-Cyclohexyl-6-oxohexanoic acid

7-cyclopentyl-7-oxoheptanoic acid