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