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