3-Cyano-5-(difluoromethyl)-2-hydroxy-6-(trifluoromethyl)pyridine
2-Cyano-5-(difluoromethyl)-3-hydroxy-6-(trifluoromethyl)pyridine
6-Cyano-4-(difluoromethyl)-3-methoxy-2-(trifluoromethyl)pyridine
5-Cyano-2-(difluoromethyl)-4-iodopyridine-3-sulfonamide