4-Cyano-2,3-dichloro-5-(trifluoromethoxy)pyridine
2-Cyano-3,5-dibromo-6-(trifluoromethoxy)pyridine
2-Cyano-3,5-dibromo-4-(trifluoromethoxy)pyridine
2-Cyano-4,5-dibromo-3-(trifluoromethoxy)pyridine
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