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