3-Chloro-4-hydroxy-2-(trifluoromethoxy)pyridine-5-carboxylic acid
2-Cyano-3-methyl-6-(trifluoromethoxy)pyridine-5-acetonitrile
2-Chloro-5-hydroxy-6-(trifluoromethoxy)pyridine-3-sulfonyl chloride
2-Chloro-5-hydroxy-4-(trifluoromethoxy)pyridine-3-sulfonyl chloride