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