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