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