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