title: Synthesis, characterization and biocidal activity of new organotin complexes of 2-(3-oxocyclohex-1-enyl)benzoic acid.
abstract: The reaction of 1,3-cyclohexadione with 2-aminobenzoic acid has produced the 2-(3-oxocyclohex-1-enyl)benzoic acid (HOBz). Subsequent reactions of the ligand with organotin chlorides led to [Me(2)Sn(OBz)O](2) (1), [Bu(2)Sn(OBz)O](2) (2), [Ph(2)Sn(OBz)O](2) (3), [Me(3)Sn(OBz)] (4), [Bu(3)Sn(OBz)] (5) and [Ph(3)Sn(OBz)] (6). All complexes have been fully characterized. In addition the structure of complexes (2) and (4) have been authenticated by X-ray crystallography. The biological activity of all derivatives has been screened against Cryptococcus neoformans and Candida albicans. In addition we have performed toxicological testes employing human kidney cell. The complexes (3), (5) and (6) displayed the best values of inhibition of the fungus growing, superior to ketoconazole. Compound (5) presented promising results in view of the antifungal and cytotoxicity assays.
authors: Departamento de Química, Universidade Federal de Minas Gerais, UFMG, Avenida Antônio Carlos 6627, Belo Horizonte MG, CEP 31270-901, Brazil.
authors: Flaviana T
authors: FT
authors: Vieira
authors: Geraldo M
authors: GM
authors: de Lima
authors: José R da S
authors: JR
authors: Maia
authors: Nivaldo L
authors: NL
authors: Speziali
authors: José D
authors: JD
authors: Ardisson
authors: Leonardo
authors: L
authors: Rodrigues
authors: Ary
authors: A
authors: Correa
authors: Oscar B
authors: OB
authors: Romero
mesh_terms: D000935:Antifungal Agents / Q000138:chemical synthesis / Q000737:chemistry / Q000494:pharmacology; D019817:Benzoic Acid / Q000737:chemistry*; D002176:Candida albicans / Q000187:drug effects*; D002460:Cell Line; D003455:Cryptococcus neoformans / Q000187:drug effects*; D018360:Crystallography, X-Ray; D003509:Cyclohexanecarboxylic Acids / Q000737:chemistry*; D004202:Disinfectants / Q000138:chemical synthesis* / Q000737:chemistry / Q000494:pharmacology*; D006801:Humans; D020128:Inhibitory Concentration 50; D008958:Models, Molecular; D015394:Molecular Structure; D009947:Organotin Compounds / Q000138:chemical synthesis / Q000737:chemistry / Q000494:pharmacology
chemical_list: D000935:Antifungal Agents; D003509:Cyclohexanecarboxylic Acids; D004202:Disinfectants; D009947:Organotin Compounds; D019817:Benzoic Acid