Mitomycin H

10-decarbamoyloxy-9-dehydromitomycin B

(1aS,8aR,8bS)-8-Methylene-1,1a,2,8,8a,8b-hexahydro-8a-hydroxy-6-methoxy-1,5-dimethylazirino[2',3':3,4]pyrrolo[1,2-a]indole-4,7-dione