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