2-Fluoro-4-hydroxy-6-iodo-3-(trifluoromethoxy)pyridine
3-Fluoro-5-hydroxy-2-methyl-6-(trifluoromethoxy)pyridine
3-Fluoro-4-(fluoromethyl)-2-(trifluoromethoxy)pyridine-6-acetonitrile
3-Fluoro-2-(fluoromethyl)-6-(trifluoromethoxy)pyridine-4-acetonitrile