7-(4-t-Butylphenyl)-7-oxoheptanoic acid

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

4-(2,6-Dimethoxyphenyl)-4-oxobutyric acid

8-(2,6-Dimethoxyphenyl)-8-oxooctanoic acid

8-[4-(N,N-Dimethylamino)phenyl]-8-oxooctanoic acid

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

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

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

4-(3-Chloro-6-methoxyphenyl)-4-oxobutyric acid

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

8-(5-Chloro-2-methoxyphenyl)-8-oxooctanoic acid