2-Fluoro-3-(fluoromethyl)-5-(trifluoromethoxy)pyridine-4-acetonitrile
4-(Chloromethyl)-6-hydroxy-3-(trifluoromethoxy)-2-(trifluoromethyl)pyridine
4-(Chloromethyl)-2-hydroxy-3-(trifluoromethoxy)-5-(trifluoromethyl)pyridine
5-(Bromomethyl)-3-hydroxy-4-methyl-2-(trifluoromethoxy)pyridine