2-Bromo-4-hydroxy-3-nitro-6-(trifluoromethoxy)pyridine
2-Bromo-3-hydroxy-6-nitro-4-(trifluoromethoxy)pyridine
3-Bromo-4-methoxy-5-methyl-2-(trifluoromethoxy)pyridine
2-Bromo-3-hydroxy-4-nitro-6-(trifluoromethoxy)pyridine
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