Home1-[(6-Chloropyridin-3-yl)methyl]-4,6-dimethyl-2-oxo-1,2-dihydropyridine-3-carbonitrile1-[(6-Chloropyridin-3-yl)methyl]-4,6-dimethyl-2-oxo-1,2-dihydropyridine-3-carbonitrile, tech