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