title: Novel cyano- and amidino-substituted derivatives of thieno[2,3-b]- and thieno[3,2-b]thiophene-2-carboxanilides and thieno[3',2':4,5]thieno- and thieno[2',3':4,5]thieno [2,3-c]quinolones: synthesis, photochemical synthesis, DNA binding, and antitumor evaluation.
abstract: A series of cyano- and amidino-substituted derivatives of thieno[2,3-b]- and thieno[3,2-b]thiophene-2-carboxanilides and their 'cyclic' derivatives (quinolones) were synthesized. 'Cyclic' compounds displayed a rather strong and differential antiproliferative effect on various cell lines, while the 'acyclic' amidino-substituted compounds were much more active, but showing mostly non-differential cytotoxicity, whereas cyano-substituted compounds (2a,b) produced a strikingly strong effect selectively on HeLa and Hep-2 cell lines. Antiproliferative activity of 'cyclic' derivatives is very likely caused by intercalation into DNA, while their 'acyclic' analogues use other target(s) and/or mechanisms of action.
authors.affiliation: Department of Organic Chemistry, Faculty of Chemical Engineering and Technology, University of Zagreb, Marulićev trg 20, PO Box 177, HR-10000 Zagreb, Croatia.
authors.forename: Ivana
authors.initials: I
authors.lastname: Jarak
authors.forename: Marijeta
authors.initials: M
authors.lastname: Kralj
authors.forename: Ivo
authors.initials: I
authors.lastname: Piantanida
authors.forename: Lidija
authors.initials: L
authors.lastname: Suman
authors.forename: Mladen
authors.initials: M
authors.lastname: Zinić
authors.forename: Kresimir
authors.initials: K
authors.lastname: Pavelić
authors.forename: Grace
authors.initials: G
authors.lastname: Karminski-Zamola
mesh_terms: D000578:Amidines / Q000737:chemistry*; D000970:Antineoplastic Agents / Q000138:chemical synthesis* / Q000737:chemistry / Q000494:pharmacology*; D045744:Cell Line, Tumor; D003486:Cyanides / Q000737:chemistry*; D004247:DNA / Q000187:drug effects*; D006801:Humans; D010777:Photochemistry; D015363:Quinolones / Q000138:chemical synthesis* / Q000737:chemistry / Q000494:pharmacology*; D013050:Spectrometry, Fluorescence; D013056:Spectrophotometry, Ultraviolet; D013876:Thiophenes / Q000138:chemical synthesis* / Q000737:chemistry / Q000494:pharmacology*
chemical_list: D000578:Amidines; D000970:Antineoplastic Agents; D003486:Cyanides; D015363:Quinolones; D013876:Thiophenes; D004247:DNA