2'-CHLORO-7',8'-DIHYDROSPIRO(CYCLOHEXANE-1,9'(6'H)-PYRAZINO(1',2':1,5)PYRROLO(2,3-D)PYRIMIDIN)-6'-ONE
2'-chloro-7',8'-dihydrospiro(cyclohexane-1,9'(6'h)-pyrazino(1',2':1,5)pyrrolo(2,3-d)pyrimidin)-6'-one