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