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

5-(3,4,5-trichlorophenyl)-5-oxovaleric acid

4-(2,4,5-trimethoxyphenyl)-4-oxobutyric acid

8-(2,4,5-trimethoxyphenyl)-8-oxooctanoic acid

6-(2,3,4-trimethoxyphenyl)-6-oxohexanoic acid

5-(3-Ethoxyphenyl)-5-oxovaleric acid

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

5-(4-Methoxy-2-methylphenyl)-5-oxovaleric acid

5-(4-Methoxy-3-methylphenyl)-5-oxovaleric acid

5-[4-(N,N-Dimethylamino)phenyl]-3-methyl-5-oxovaleric acid

3-Methyl-5-(2-(methylthio)phenyl)-5-oxovaleric acid