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

5-(2,3,4-trimethoxyphenyl)-5-oxovaleric acid

8-(2,3,4-trimethoxyphenyl)-8-oxooctanoic acid

4-(4-tert-Butyl-2,6-dimethylphenyl)-4-oxobutyric acid

5-(2,3,4,5,6-Pentamethylphenyl)-5-oxovaleric acid

4-(3-Fluoro-2-methylphenyl)-4-oxobutyric acid

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

2,2-Dimethyl-4-(4-methylphenyl)-4-oxobutyric acid

2,2-Dimethyl-4-[3-(N,N-dimethylamino)phenyl]-4-oxobutyric acid

2,2-Dimethyl-4-[4-(N,N-Dimethylamino)phenyl]-4-oxobutyric acid

5-(4-Ethlyphenyl)-3-methyl-5-oxovaleric acid