2-(Bromomethyl)-6-cyano-4-hydroxy-3-(trifluoromethoxy)pyridine
4-Chloro-2-(chloromethyl)-6-hydroxy-3-(trifluoromethoxy)pyridine
2-(Bromomethyl)-5-cyano-4-hydroxy-3-(trifluoromethoxy)pyridine
3-Chloro-6-methyl-2-(trifluoromethoxy)pyridine-5-acetonitrile