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