Synonyms: Azirino[2',3':3,4]pyrrolo[1,2-a]indole-4,7-dione,6-amino-1,1a,2,8,8a,8b-hexahydro-8-(hydroxymethyl)-8a-methoxy-5-methyl-1-(methylsulfonyl)-,carbamate (ester), stereoisomer (8CI); Carbamic acid, ester with6-amino-1,1a,2,8,8a,8b-hexahydro-8-(hydroxymethyl)-8a-methoxy-5-methyl-1-(methylsulfonyl)azirino[2',3':3,4]pyrrolo[1,2-a]indole-4,7-dione(7CI)