6-Chloro-3-(chloromethyl)-2-hydroxy-4-(trifluoromethoxy)pyridine
2-Chloro-3-hydroxy-4-(trifluoromethoxy)pyridine-5-sulfonamide
5-Chloro-3-cyano-2-(difluoromethyl)-4-(trifluoromethoxy)pyridine
3-Chloro-6-hydroxy-4-(trifluoromethoxy)pyridine-2-sulfonyl chloride