Synonyms: 1,2-dihydro-5-imidazo(1,2-alpha)pyridin-6-yl-6-methyl-2-oxonicotinonitrile;5-(1,7-diazabicyclo[4.3.0]nona-2,4,6,8-tetraen-3-yl)-6-methyl-2-oxo-1h-pyridine-3-carbonitrile;Loprinone;Olprinone;1,2-dihydro-5-imidazo[1,2-α]pyridin-6-yl-6-methyl-2-oxo-3-pyridinecarbonitrile;1,2-dihydro-5-(imidazo[1,2-a]pyridin-6-yl)-6-methyl-2-oxo-3-pyridinecarbonitrile;5-(imidazo[1,2-a]pyridine-6-yl)-6-methyl-2-oxo-1,2-dihydropyridine-3-carbonitrile;