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