8-(4-bromo-2-methylphenyl)-8-oxooctanoic acid

6-(4-Ethylphenyl)-6-oxohexanoic acid

4-(2-Ethoxyphenyl)-4-oxobutyric acid

8-(2-ethoxyphenyl)-8-oxooctanoic acid

5-Oxo-5-(4-isopropoxyphenyl)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