3-(Chloromethyl)-2-cyano-5-(trifluoromethoxy)pyridine-6-acetonitrile
6-(Bromomethyl)-2-(difluoromethyl)-4-fluoro-3-(trifluoromethoxy)pyridine
2-(Bromomethyl)-6-(difluoromethyl)-3-fluoro-4-(trifluoromethoxy)pyridine
3-(Chloromethyl)-2-cyano-4-(trifluoromethoxy)pyridine-5-acetonitrile