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