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