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