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