6-(4-t-Butylphenyl)-6-oxohexanoic acid

6-Oxo-6-(4-n-propoxyphenyl)hexanoic acid

8-Oxo-8-(4-isopropoxyphenyl)octanoic acid

5-(2,3-Dimethoxyphenyl)-5-oxovaleric acid

8-(2,3-Dimethoxyphenyl)-8-oxooctanoic acid

8-(2,5-Dimethoxyphenyl)-8-oxooctanoic acid

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

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

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

7-(5-Chloro-2-methoxyphenyl)-7-oxoheptanoic acid

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