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

2,2-Dimethyl-4-(1-naphthyl)-4-oxobutyric acid

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

3-Methyl-5-oxo-5-(2,4,6-trimethylphenyl)valeric acid

5-(3,5-Dimethyl-4-methoxyphenyl)-3-methyl-5-oxovaleric acid

3-Methyl-5-[3,4-(methylenedioxy)phenyl]-5-oxovaleric acid

5-(2,5-Dimethylphenyl)-3-methyl-5-oxovaleric acid

2,2-Dimethyl-4-(5-fluoro-2-methoxyphenyl)-4-oxobutyric acid

4-(3-Chloro-4-methylphenyl)-2,2-Dimethyl-4-oxobutyric acid

5-(2-chlorophenyl)-5-oxovaleric acid

ethyl 8-(3-bromophenyl)-8-oxooctanoate