3-Fluoro-6-hydroxy-2-(trifluoromethoxy)pyridine-5-acetonitrile
5-Fluoro-2-hydroxy-3-(trifluoromethoxy)pyridine-6-acetonitrile
3-Fluoro-5-hydroxy-6-(trifluoromethoxy)pyridine-2-acetonitrile
3-Fluoro-4-hydroxy-2-(trifluoromethoxy)pyridine-6-carboxaldehyde