title: [Tri- and tetracyclic benzothiophene derivatives (author's transl)].
mesh_terms: D001555:Benzene Derivatives / Q000138:chemical synthesis*; D055598:Chemical Phenomena; D002621:Chemistry; D011083:Polycyclic Compounds / Q000138:chemical synthesis; D013876:Thiophenes / Q000138:chemical synthesis*
chemical_list: D001555:Benzene Derivatives; D011083:Polycyclic Compounds; D013876:Thiophenes
vernacular_title: Untersuchungen über siebengliedrige tri- und tetracyclische Benzthiophenderivate.