3-Chloro-4-hydroxy-6-(trifluoromethoxy)pyridine-2-sulfonamide
Ethyl 6-chloro-4-cyano-3-(trifluoromethoxy)pyridine-2-carboxylate
3-Chloro-4-hydroxy-2-(trifluoromethoxy)pyridine-6-sulfonamide
3-Cyano-6-hydroxy-2-(trifluoromethoxy)pyridine-4-sulfonamide