5-Hydroxy-2-nitro-4-(trifluoromethoxy)pyridine-3-methanol
Ethyl 2-hydroxy-3-methoxy-4-(trifluoromethoxy)pyridine-6-carboxylate
4-Hydroxy-5-nitro-2-(trifluoromethoxy)pyridine-3-methanol
Methyl 5-hydroxy-2-methoxy-3-(trifluoromethoxy)pyridine-6-carboxylate