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