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