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