7-(4,7-DIAZASPIRO(2.5)OCTAN-7-YL)-2-(2,2',8,8'-TETRAMETHYL-(3,6'-BIIMIDAZO(1,2-B)PYRIDAZIN)-6-YL)-4H-PYRIDO(1,2-A)PYRIMIDIN-4-ONE
7-(4,7-diazaspiro(2.5)octan-7-yl)-2-(2,2',8,8'-tetramethyl-(3,6'-biimidazo(1,2-b)pyridazin)-6-yl)-4h-pyrido(1,2-a)pyrimidin-4-one