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