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