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