Synonyms: (1aS,8aR,8bS)-6,8a-Dimethoxy-1,5-dimethyl-8-methylene-1,1a,2,8,8a,8b-hexahydroazireno[2',3':3,4]pyrrolo[1,2-a]indole-4,7-dione;azirino[2',3':3,4]pyrrolo[1,2-a]indole-4,7-dione, 1,1a,2,8,8a,8b-hexahydro-6,8a-dimethoxy-1,5-dimethyl-8-methylene-, (1aS,8aR,8bS)-