10-Decarbamoyloxy-9-dehydromitomycin B 10-Decarbamoyloxy-9-dehydromitomycin-B 74148-44-0 Azirino(2',3':3,4)pyrrolo(1,2-a)indole-4,7-dione, 1,1a,2,8,8a,8b-hexahydro-1,5-dimethyl-8a-hydroxy-6-methoxy-8-methylene-, (1aS-(1a-alpha,8a-alpha,8b-alpha))- Azirino(2',3':3,4)pyrrolo(1,2-a)indole-4,7-dione, 1,1a,2,8,8a,8b-hexahydro-8a-hydroxy-6-methoxy-1,5-dimethyl-8-methylene-, (1aS-(1aalpha,8aalpha,8balpha))- Mitomycin H