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