4-(Chloromethyl)-5-fluoro-3-(trifluoromethoxy)pyridine-2-acetonitrile
3-(Bromomethyl)-2-(difluoromethyl)-5-iodo-4-(trifluoromethyl)pyridine
3-Cyano-5-(fluoromethyl)-2-methoxy-4-(trifluoromethoxy)pyridine
6-(Difluoromethyl)-4-fluoro-2-(trifluoromethyl)pyridine-3-acetonitrile