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