6-(2,6-Dimethoxyphenyl)-6-oxohexanoic acid

7-(2-Chloro-6-fluorophenyl)-7-oxoheptanoic acid

7-(3,4,5-trichlorophenyl)-7-oxoheptanoic acid

5-(2,4,5-trimethoxyphenyl)-5-oxovaleric acid

7-(4-n-Propylphenyl)-7-oxoheptanoic acid

5-(2,3,4,5,6-Pentamethylphenyl)-5-oxovaleric acid

4-(5-Fluoro-2-methoxyphenyl)-4-oxobutyric acid

5-[4-(N,N-Dimethylamino)phenyl]-3-methyl-5-oxovaleric acid

3-Methyl-5-oxo-5-(4-phenoxyphenyl)valeric acid

4-(4-n-Butylphenyl)-2,2-dimethyl-4-oxobutyric acid

2,2-Dimethyl-4-oxo-4-(2,3,4,5,6-pentamethylphenyl)butyric acid