8-(3-bromo-4-methylphenyl)-8-oxooctanoic acid

6-(2-ethoxyphenyl)-6-oxohexanoic acid

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

7-oxo-7-(4-n-propoxyphenyl)heptanoic acid

6-Oxo-6-(4-isopropoxyphenyl)hexanoic acid

6-(4-hexyloxyphenyl)-6-oxohexanoic acid

8-(4-hexyloxyphenyl)-8-oxooctanoic acid

6-(2,5-Dimethoxyphenyl)-6-oxohexanoic acid

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

7-(3,5-Dimethoxyphenyl)-7-oxoheptanoic acid

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