2,5-dimethyl-1-iodobenzene, 1,4-dimethyl-2-keto-3-cyano-6-hydroxy-1,2-dihydropyridine, 1-methyl-2-keto-3-cyano-4-methyl-6-hydroxy-1,2-dihydropyridine, p-Xylene,2-iodo, 1-methyl-3-cyano-4-methyl-6-hydroxy-2-pyridone, 2,5-dimethylphenyl iodide, 1,4-dimethyl-2-iodobenzene, 3-iodo-1,4-dimethylbenzene, 1,4-dimethyl-3-cyano-6-hydroxy-2-pyridone, 2-iodo-4-xylene, N-methyl-3-cyano-4-methyl-6-hydroxypyrid-2-one, 2,5-Dimethyliodobenzene, 1,4-dimethyl-2,6-dioxo-1,2,3,6-tetrahydro-pyridine-3-carbonitrile, Benzene,2-iodo-1,4-dimethyl, 1-Iodo-2,5-dimethylbenzene, 1,2-Dihydro-6-hydroxy-1,4-dimethyl-2-oxo-3-pyridinecarbonitrile, 2-Iodo-p-xylene