title: Synthesis, structural characterization and in vitro cytotoxicity of organotin(IV) derivatives of heterocyclic thioamides, 2-mercaptobenzothiazole, 5-chloro-2-mercaptobenzothiazole, 3-methyl-2-mercaptobenzothiazole and 2-mercaptonicotinic acid.
abstract: Five new organotin(IV) molecules with the heterocyclic thioamides; 2-mercaptobenzothiazole (Hmbzt), 5-chloro-2-mercaptobenzothiazole (Hcmbzt), 3-methyl-2-mercaptobenzothiazole (mmbzt) and 2-mercaptonicotinic acid (H(2)mna) of formulae [(n-C(4)H(9))(2)Sn(mbzt)(2)] (1), [(C(6)H(5))(2)Sn(mbzt)(2)] (2), [(CH(3))(2)Sn(cmbzt)(2)].1.7(H(2)O)] (3), [(n-C(4)H(9))(2)SnCl(2)(mmbzt)(2).(CH(2)Cl(2))] (4) and [[(C(6)H(5))(3)Sn](2)(mna).[(CH(3))(2)CO]] (5) have been synthesized and characterized by elemental analysis, 1H-, 13C-NMR, FT-IR and Mössbauer spectroscopic techniques. Crystal structures of molecules 1, 3 and 5 have been determined by X-ray diffraction at 173(1) K (1 and 5) and 293(2) K (3). Compound 1 C(22)H(26)N(2)S(4)Sn, is monoclinic, space group C2/c, a=44.018(2), b=8.8864(5), c=12.8633(7) A, beta=104.195(5) degrees, Z=8. Compound 3 is also monoclinic, space group P2(1)/c and a=17.128(2) A, b=17.919(2) A, c=7.3580(10) A, beta=98.290(10) degrees, Z=4. In both molecules 1 and 3, two carbon atoms from aryl groups, two sulfur and two nitrogen atoms from thione ligands form a distorted octahedral geometry around tin(IV) with trans-C(2), cis-N(2), cis-S(2) configurations. Compound 5 C(45)H(39)NO(3)SSn(2) is monoclinic, space group P2(1)/n, a=9.1148(2) A, b=29.2819(6), c=15.5556(4) A, beta=106.2851(9) degrees, Z=4. Complex 5 contains two [(C(6)H(5))(3)Sn(IV)] moieties linked by a double deprotonated 2-mercaptonicotinic acid (H(2)mna). Both tin(IV) ions are five coordinated. This complex is the an example of a pentacoordinated Ph(3)SnXY system with an axial-equatorial arrangement of the phenyl groups at Sn(1) atom. Compounds 1, 3 and 5 were tested for in vitro cytotoxicity against the cancer cell line of sarcoma cells (mesenchymal tissue) from the Wistar rat, polycyclic aromatic hydrocarbons (benzo[a]pyrene) carcinogenesis. Compound 5 exhibits strong cytotoxic activity, while complexes 1 and 3 show less cytotoxic activity.
authors.affiliation: Inorganic and Analytical Chemistry, Department of Chemistry, University of Ioannina, 45110, Ioannina, Greece.
authors.forename: Marianna N
authors.initials: MN
authors.lastname: Xanthopoulou
authors.forename: Sotiris K
authors.initials: SK
authors.lastname: Hadjikakou
authors.forename: Nick
authors.initials: N
authors.lastname: Hadjiliadis
authors.forename: Markus
authors.initials: M
authors.lastname: Schürmann
authors.forename: Klaus
authors.initials: K
authors.lastname: Jurkschat
authors.forename: Adonis
authors.initials: A
authors.lastname: Michaelides
authors.forename: Stavroula
authors.initials: S
authors.lastname: Skoulika
authors.forename: Thomas
authors.initials: T
authors.lastname: Bakas
authors.forename: Jayne
authors.initials: J
authors.lastname: Binolis
authors.forename: Spyros
authors.initials: S
authors.lastname: Karkabounas
authors.forename: Konstantinos
authors.initials: K
authors.lastname: Charalabopoulos
mesh_terms: D000818:Animals; D000970:Antineoplastic Agents / Q000138:chemical synthesis* / Q000737:chemistry / Q000494:pharmacology; D001564:Benzo(a)pyrene; D002470:Cell Survival / Q000187:drug effects; D018360:Crystallography, X-Ray; D015394:Molecular Structure; D009539:Nicotinic Acids / Q000737:chemistry / Q000494:pharmacology; D009947:Organotin Compounds / Q000138:chemical synthesis* / Q000737:chemistry / Q000494:pharmacology; D051381:Rats; D017208:Rats, Wistar; D012509:Sarcoma / Q000139:chemically induced / Q000188:drug therapy*; D013329:Structure-Activity Relationship; D013438:Sulfhydryl Compounds / Q000737:chemistry / Q000494:pharmacology; D013844:Thiazoles / Q000737:chemistry / Q000494:pharmacology; D013854:Thioamides / Q000737:chemistry / Q000494:pharmacology
chemical_list: D000970:Antineoplastic Agents; D009539:Nicotinic Acids; D009947:Organotin Compounds; D013438:Sulfhydryl Compounds; D013844:Thiazoles; D013854:Thioamides; D001564:Benzo(a)pyrene; C083470:2-mercaptonicotinic acid