1a-Demethylmitomycin G 74422-23-4 Azirino(2',3':3,4)pyrrolo(1,2-a)indole-4,7-dione, 1,1a,2,8,8a,8b-hexahydro-6-amino-8a-methoxy-5-methyl-8-methylene-, (1aS-(1a-alpha,8a-alpha,8b-alpha))- Azirino(2',3':3,4)pyrrolo(1,2-a)indole-4,7-dione, 6-amino-1,1a,2,8,8a,8b-hexahydro-8a-methoxy-5-methyl-8-methylene-, (1aS-(1aalpha,8aalpha,8balpha))-