2-Chloro-3-(fluoromethyl)-4-hydroxy-6-(trifluoromethoxy)pyridine
3-Cyano-2-hydroxy-5-(trifluoromethoxy)pyridine-6-sulfonyl chloride
2-Cyano-4-hydroxy-3-(trifluoromethoxy)pyridine-5-acetonitrile
5-Chloro-2-(difluoromethyl)-4-hydroxy-3-(trifluoromethoxy)pyridine