4-(Chloromethyl)-2-hydroxy-3-nitro-6-(trifluoromethoxy)pyridine
4-(Bromomethyl)-6-fluoro-2-(trifluoromethoxy)pyridine-3-acetonitrile
3-(Chloromethyl)-5-hydroxy-6-nitro-2-(trifluoromethoxy)pyridine
2-(Bromomethyl)-5-fluoro-6-(trifluoromethoxy)pyridine-3-acetic acid