3-Hydroxy-5-methyl-4-(trifluoromethoxy)pyridine-2-acetonitrile
5-Hydroxy-4-methyl-2-(trifluoromethoxy)pyridine-3-acetonitrile
4-(Chloromethyl)-3-hydroxy-2-(trifluoromethoxy)pyridine-5-acetic acid
4-(Chloromethyl)-6-hydroxy-3-(trifluoromethoxy)pyridine-2-acetic acid