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