2-(Bromomethyl)-6-fluoro-3-hydroxy-4-(trifluoromethoxy)pyridine
5-Fluoro-4-(fluoromethyl)-3-hydroxy-2-(trifluoromethoxy)pyridine
3-Fluoro-2-(fluoromethyl)-5-hydroxy-6-(trifluoromethoxy)pyridine
3-Fluoro-2-(fluoromethyl)-4-hydroxy-5-(trifluoromethoxy)pyridine