4-Chloro-6-cyano-2-hydroxy-3-(trifluoromethoxy)pyridine
3-Bromo-2-(difluoromethyl)-5-(trifluoromethoxy)pyridine-6-acetonitrile
2-Chloro-4-(chloromethyl)-3-iodo-6-(trifluoromethoxy)pyridine
3-Bromo-2-(difluoromethyl)-4-(trifluoromethoxy)pyridine-5-acetonitrile