5-Bromo-2-cyano-3-iodo-4-(trifluoromethoxy)pyridine
2-Bromo-5-cyano-3-iodo-6-(trifluoromethoxy)pyridine
4-Bromo-3-cyano-6-iodo-2-(trifluoromethoxy)pyridine
6-Bromo-4-cyano-2-iodo-3-(trifluoromethoxy)pyridine
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