4-(2-Chloro-4-fluorophenyl)-4-oxobutyric acid

6-(5-Chloro-2-methoxyphenyl)-6-oxohexanoic acid

7-[2-Chloro-4-(methylthio)phenyl]-7-oxoheptanoic 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