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