4-(Difluoromethyl)-5-methyl-2-(trifluoromethoxy)pyridine-3-acetonitrile
4-(Difluoromethyl)-2-methyl-6-(trifluoromethoxy)pyridine-3-acetonitrile
4-(Difluoromethyl)-5-methyl-3-(trifluoromethoxy)pyridine-2-acetonitrile
4-(Difluoromethyl)-2-methyl-5-(trifluoromethoxy)pyridine-3-acetonitrile