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