Ethyl 4-(bromomethyl)-5-hydroxy-3-(trifluoromethoxy)pyridine-2-carboxylate
3-Hydroxy-4-nitro-2-(trifluoromethoxy)pyridine-6-sulfonamide
3-Hydroxy-2-nitro-6-(trifluoromethoxy)pyridine-4-sulfonamide
Ethyl 4-(bromomethyl)-3-hydroxy-2-(trifluoromethoxy)pyridine-5-carboxylate