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