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

2,2-Dimethyl-4-(2,6-dimethylphenyl)-4-oxobutyric acid

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

4-(3,5-Dimethoxyphenyl)-2,2-dimethyl-4-oxobutyric acid

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

5-(4-Methoxy-2-methylphenyl)-3-methyl-5-oxovaleric acid

5-(3-Chloro-4-methylphenyl)-3-methyl-5-oxovaleric acid

4-(2-Chlorophenyl)-4-oxobutyric acid

Ethyl 4-(3-bromophenyl)-4-oxobutyrate

ethyl 8-(4-fluorophenyl)-8-oxooctanoate

Ethyl 5-(4-chlorophenyl)-5-oxovalerate