4-(4-heptyloxyphenyl)-4-oxobutyric acid

7-[3-(N,N-Dimethylamino)phenyl]-7-oxoheptanoic acid

6-(4-Chloro-2-fluorophenyl)-6-oxohexanoic acid

8-(4-Chloro-2-methoxyphenyl)-8-oxooctanoic acid

5-(2-Chloro-6-fluorophenyl)-5-oxovaleric acid

5-(2,3,4,5-tetrafluorophenyl)-5-oxovaleric acid

8-(3,4,5-Trichlorophenyl)-8-oxooctanoic acid

6-(4-n-Propylphenyl)-6-oxohexanoic acid

5-(3-Ethoxyphenyl)-5-oxovaleric acid

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

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