title: Structural studies and cytotoxic activity of N(4)-phenyl-2-benzoylpyridine thiosemicarbazone Sn(IV) complexes.
abstract: Structural studies and an investigation of the cytotoxic activity of Sn(IV) complexes with N(4)-phenyl-2-benzoylpyridine thiosemicarbazone (H2Bz4Ph) were carried out. The crystal and molecular structures of [Sn(2Bz4Ph)Cl3].CH3CH2OH (1) and [Sn(2Bz4Ph)BuCl2].H2O (Bu = butyl group) (2) were determined. Both compounds present octahedral coordination geometry with the 2Bz4Ph anionic ligand behaving as tridentate on the metal ion. A comparative study of the structures of these compounds along with that of [Sn(2Bz4Ph)Bu2Cl] (3) determined before is presented. The cytotoxicity of H2Bz4Ph and its Sn(IV) complexes was investigated against the MCF-7, TK-10 and UACC-62 human tumor cell lines. Among the three complexes, 3 proved to be better as cytotoxic agent than the clinically used drug etoposide. H2Bz4Ph and all complexes were able to induce apoptosis in UACC-62 cells.
authors.affiliation: Departamento de Química, Universidade Federal de Minas Gerais, 31270-901 Belo Horizonte, MG, Brazil.
authors.forename: Anayive
authors.initials: A
authors.lastname: Perez-Rebolledo
authors.forename: José Danilo
authors.initials: JD
authors.lastname: Ayala
authors.forename: Geraldo M
authors.initials: GM
authors.lastname: de Lima
authors.forename: Nicoletta
authors.initials: N
authors.lastname: Marchini
authors.forename: Gabriella
authors.initials: G
authors.lastname: Bombieri
authors.forename: Carlos L
authors.initials: CL
authors.lastname: Zani
authors.forename: Elaine M
authors.initials: EM
authors.lastname: Souza-Fagundes
authors.forename: Heloisa
authors.initials: H
authors.lastname: Beraldo
mesh_terms: D000970:Antineoplastic Agents / Q000737:chemistry / Q000494:pharmacology; D017209:Apoptosis / Q000187:drug effects; D045744:Cell Line, Tumor; D018360:Crystallography, X-Ray; D004354:Drug Screening Assays, Antitumor; D005434:Flow Cytometry; D006801:Humans; D006860:Hydrogen Bonding; D020128:Inhibitory Concentration 50; D008958:Models, Molecular; D009942:Organometallic Compounds / Q000737:chemistry* / Q000494:pharmacology; D011725:Pyridines / Q000737:chemistry* / Q000494:pharmacology; D013882:Thiosemicarbazones / Q000737:chemistry* / Q000494:pharmacology; D014001:Tin / Q000737:chemistry* / Q000494:pharmacology
chemical_list: D000970:Antineoplastic Agents; D009942:Organometallic Compounds; D011725:Pyridines; D013882:Thiosemicarbazones; D014001:Tin