4-(Difluoromethyl)-2-nitro-5-(trifluoromethyl)pyridine-3-acetonitrile
Methyl 3-(difluoromethyl)-5-methyl-6-(trifluoromethyl)pyridine-2-acetate
4-(Difluoromethyl)-2-nitro-3-(trifluoromethyl)pyridine-5-acetonitrile
3-(Difluoromethyl)-5-nitro-6-(trifluoromethyl)pyridine-2-acetonitrile