5-oxo-5-(4-n-pentylphenyl)valeric acid

8-oxo-8-(4-pentyloxyphenyl)octanoic acid

6-(2,5-Dimethoxyphenyl)-6-oxohexanoic acid

5-(2,6-Dimethoxyphenyl)-5-oxovaleric acid

7-[4-(N,N-Dimethylamino)phenyl]-7-oxoheptanoic acid

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

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

6-[2-Chloro-4-(methylthio)phenyl]-6-oxohexanoic acid

8-(2-Chloro-6-fluorophenyl)-8-oxooctanoic acid

6-(2,3,4,5-tetrafluorophenyl)-6-oxohexanoic acid

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