4-(Bromomethyl)-3-cyano-2-(difluoromethyl)-6-(trifluoromethoxy)pyridine
4-(Bromomethyl)-2-cyano-6-(difluoromethyl)-3-(trifluoromethoxy)pyridine
3-(Bromomethyl)-2-cyano-6-(difluoromethyl)-4-(trifluoromethoxy)pyridine
4-(Bromomethyl)-6-cyano-3-(trifluoromethoxy)pyridine-2-acetonitrile