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