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