6-Cyano-2-hydroxy-4-(trifluoromethoxy)pyridine-3-methanol
2-Chloro-3-(fluoromethyl)-5-hydroxy-4-(trifluoromethoxy)pyridine
4-Chloro-5-methyl-2-(trifluoromethoxy)pyridine-3-carboxylic acid
4-Cyano-2-hydroxy-3-(trifluoromethoxy)pyridine-5-carboxylic acid