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