3,5-Dibromo-2-(trifluoromethoxy)pyridine-6-sulfonyl chloride
2,4-Dibromo-3-(trifluoromethoxy)pyridine-6-sulfonyl chloride
2,3-Dibromo-6-(trifluoromethoxy)pyridine-4-sulfonyl chloride
2,3-Dibromo-4-(trifluoromethoxy)pyridine-6-sulfonyl chloride
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