3-Bromo-2-nitro-4-(trifluoromethoxy)pyridine-5-sulfonamide
Ethyl 2-bromo-4-hydroxy-6-(trifluoromethoxy)pyridine-3-carboxylate
6-Bromo-2-nitro-4-(trifluoromethoxy)pyridine-3-sulfonamide
Ethyl 2-bromo-4-hydroxy-3-(trifluoromethoxy)pyridine-6-carboxylate