6-Oxo-6-(3-trifluoromethylphenyl)hexanoic acid

6-(4-Ethoxyphenyl)-6-oxohexanoic acid

4-oxo-4-(4-pentyloxyphenyl)butyric acid

6-(4-hexyloxyphenyl)-6-oxohexanoic acid

7-(2,4-Dimethoxyphenyl)-7-oxoheptanoic acid

5-(2,5-Dimethoxyphenyl)-5-oxovaleric acid

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

6-[4-(N,N-Dimethylamino)phenyl]-6-oxohexanoic acid

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

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

4-[2-Chloro-4-(methylthio)phenyl]-4-oxobutyric acid