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