4-(2-Chloro-4,5-difluorophenyl)-4-oxobutyric acid

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

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

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

8-(3,4,5-trimethoxyphenyl)-8-oxooctanoic acid

7-(4-n-Butylphenyl)-7-oxoheptanoic acid

7-(4-n-Propylphenyl)-7-oxoheptanoic acid

4-(3-Ethoxyphenyl)-4-oxobutyric acid

5-(2,4,6-Trimethylphenyl)-5-oxovaleric acid

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

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