Azirino[2',3':3,4]pyrrolo[1,2-a]indole-4,7-dione, 6,6'-[dithiobis(2,1-ethanediylimino)] bis[8-[[(aminocarbonyl)oxy]methyl]-1,1a,2,8,8a,8b- hexahydro-8a-methoxy-5-methyl- NSC329697