4-oxo-4-(4-n-propoxyphenyl)butyric acid

5-[3-(N,N-Dimethylamino)phenyl]-5-oxovaleric acid

8-[3-(N,N-Dimethylamino)phenyl]-8-oxooctanoic acid

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

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

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

4-(3,4,5-Trichlorophenyl)-4-oxobutyric acid

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

8-(2,3,4-trimethoxyphenyl)-8-oxooctanoic acid

5-(3-Methyl-2-thienyl)-5-oxovaleric acid

5-(4-Methoxy-2-methylphenyl)-5-oxovaleric acid