5-Oxo-5-(3-trifluoromethylphenyl)valeric acid

7-(2-ethoxyphenyl)-7-oxoheptanoic acid

5-oxo-5-(4-n-propoxyphenyl)valeric acid

5-oxo-5-(4-pentyloxyphenyl)valeric acid

7-(4-hexyloxyphenyl)-7-oxoheptanoic acid

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

4-(2-Methyl-5-fluorophenyl)-4-oxobutyric acid

6-[3-(N,N-Dimethylamino)phenyl]-6-oxohexanoic acid

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

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

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