5-Bromo-4-iodo-3-nitro-2-(trifluoromethoxy)pyridine
4-Bromo-2-hydroxy-3-(trifluoromethoxy)pyridine-5-sulfonyl chloride
3-Bromo-2-iodo-5-nitro-6-(trifluoromethoxy)pyridine
3-Bromo-5-hydroxy-2-(trifluoromethoxy)pyridine-4-sulfonyl chloride
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