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