8-(4-t-Butylphenyl)-8-oxooctanoic acid

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

8-(2-ethoxyphenyl)-8-oxooctanoic acid

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

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

6-(4-heptyloxyphenyl)-6-oxohexanoic acid

7-(2,5-Dimethoxyphenyl)-7-oxoheptanoic acid

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

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

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

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

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

7-[2-Chloro-4-(methylthio)phenyl]-7-oxoheptanoic acid

8-(2-Chloro-6-fluorophenyl)-8-oxooctanoic acid

4-(3,4,5-trimethoxyphenyl)-4-oxobutyric acid