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