Decomposition of the tosylhydrazones (3), prepared from indole-2-carbaldehyde in two steps, gives the cyclopropapyrrolo[1,2-a]indoles (4), novel analogues of the mitomycin antitumour antibiotics, by an intramolecular cycloaddition reaction.
由吲哚-2-甲醛分两步制备的甲苯磺酰hydr(3)可以通过分子内环加成反应得到丝裂霉素抗肿瘤抗生素的新类似物-环丙吡咯并[1,2- a ]吲哚(4)。