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