6-oxo-6-(4-n-pentylphenyl)hexanoic acid

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

8-[4-(N,N-Diethylamino)phenyl]-8-oxooctanoic acid

5-(2-Chloro-4-fluorophenyl)-5-oxovaleric acid

7-(4-Chloro-2-fluorophenyl)-7-oxoheptanoic acid

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

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

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

5-(3,4,5-trichlorophenyl)-5-oxovaleric acid

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

8-(2,4,5-trimethoxyphenyl)-8-oxooctanoic acid