4-(4-Bromo-2-methylphenyl)-4-oxobutyric acid

6-oxo-6-(4-pentyloxyphenyl)hexanoic acid

7-(4-heptyloxyphenyl)-7-oxoheptanoic acid

6-(2,3-Dimethoxyphenyl)-6-oxohexanoic acid

8-(2,4-Dimethoxyphenyl)-8-oxooctanoic acid

7-(2,6-Dimethoxyphenyl)-7-oxoheptanoic acid

2,2-Dimethyl-4-(3-fluoro-4-methoxyphenyl)-4-oxobutyric acid

4-[4-(N,N-Diethylamino)phenyl]-4-oxobutyric acid

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

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

5-(3-Chloro-6-methoxyphenyl)-5-oxovaleric acid