7-methoxy-8-[2-(4-{2-[7-methoxy-5-oxo-(11aS)-2,3,5,11a-tetra hydro-1H-benzo[e]pyrrolo[1,2-a][1,4]diazepin-8-yloxyl]ethyl} hexahydro-1-pyrazinyl)ethoxy]-(11aS)-2,3,5,11a-tetrahydro-1H -benzo[e]pyrrolo[1,2-a][1,4]diazepin-5-one NSC723733