title: Chemical and photochemical synthesis of substituted dihydro-thieno[2',3':4,5]thieno[2,3-c]quinolin-6-ones and tetrahydro-dithieno[2,3-b:2',3'-d]thieno[2'',3''c:2'',3''c']diquinolin-6,14-dione.
abstract: Some new substituted dihydrothieno[2',3':4,5]thieno[2,3-c]quinolin-6-ones 9- 12 and tetrahydrodithieno[2,3-b: 2',3'-d]thieno[2'',3''-c:2'',3''-c']diquinolin-6,14-dione (17) were prepared from the corresponding new anilides 5-8 and from the corresponding dianilide 15, respectively, by a multistep combination of chemical and photochemical reactions. All the prepared compounds are of particular interest because they might serve as DNA intercalators in anticancer therapy.
authors.affiliation: Department of Organic Chemistry, Faculty of Chemical Engineering and Technology, University of Zagreb, Marulićev trg 20, 10000 Zagreb, Croatia.
authors.forename: Jelena Blazević
authors.initials: JB
authors.lastname: Safarik
authors.forename: Jasna Dogan
authors.initials: JD
authors.lastname: Koruznjak
authors.forename: Grace
authors.initials: G
authors.lastname: Karminski-Zamola
mesh_terms: D000813:Anilides / Q000737:chemistry*; D000970:Antineoplastic Agents / Q000138:chemical synthesis* / Q000737:chemistry; D002625:Chemistry, Organic; D003500:Cyclization; D006571:Heterocyclic Compounds / Q000138:chemical synthesis* / Q000737:chemistry; D008954:Models, Biological; D055601:Organic Chemistry Phenomena; D010777:Photochemistry; D015363:Quinolones / Q000138:chemical synthesis*; D013876:Thiophenes / Q000138:chemical synthesis* / Q000737:chemistry
chemical_list: D000813:Anilides; D000970:Antineoplastic Agents; D006571:Heterocyclic Compounds; D015363:Quinolones; D013876:Thiophenes; C526019:tetrahydrodithieno(2,3-b-2',3'-d)thieno(2'',3''c-2'',3''c')diquinolin-6,14-dione