PBH pbh (11aS)-7-methoxy-8-(3-{4-[6-(4-methylpiperazin-1-yl)-1H-benzimidazol-2-yl]phenoxy}propoxy)-1,2,3,10,11,11a-hexahydro-5H-pyrrolo[2,1-c][1,4]benzodiazepin-5-one PBH