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