201
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Transition metal complexes with thiosemicarbazide-based ligands. Part LVI: Nickel(II) complex with 1,3-diphenylpyrazole-4-carboxaldehyde thiosemicarbazone and unusually deformed coordination geometry. Polyhedron 2007. [DOI: 10.1016/j.poly.2007.04.012] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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202
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Abdelhamid AO, Sayed AR, Zaki YH. Reaction of Hydrazonoyl Halides 511: A Facile Synthesis of 5-Arylthiazoles and Triazolino[4,3- a ]pyrimidines as Antimicrobial Agents. PHOSPHORUS SULFUR 2007. [DOI: 10.1080/10426500701242145] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Affiliation(s)
- Abdou O. Abdelhamid
- a Department of Chemistry, Faculty of Science , Cairo University , Giza , Egypt
| | - Abdelwahed R. Sayed
- b Department of Chemistry, Faculty of Science , Beni-Suef University , Beni-Suef , Egypt
| | - Yasser H. Zaki
- b Department of Chemistry, Faculty of Science , Beni-Suef University , Beni-Suef , Egypt
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203
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Christlieb M, Dilworth JR. Ligands for molecular imaging: the synthesis of bis(thiosemicarbazone) ligands. Chemistry 2007; 12:6194-206. [PMID: 16795112 DOI: 10.1002/chem.200501069] [Citation(s) in RCA: 64] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
Bis(thiosemicarbazones) have been of interest to chemists for over fifty years; they display antitumour, antibiotic and antiviral properties. Recently it has become apparent that they may also provide a convenient way of labelling biologically active molecules by using metallic radionuclides and/or fluorescence. Although apparently simple, the synthesis of bis(thiosemicarbazone) ligands can be problematic. This article provides a summary of the published literature, based on the synthetic strategies used and indicates some of the difficulties that may arise.
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Affiliation(s)
- Martin Christlieb
- Chemistry Research Laboratory, University of Oxford, 12 Mansfield Road, Oxford, UK.
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204
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Rosu T, Gulea A, Nicolae A, Georgescu R. Complexes of 3d(n) metal ions with thiosemicarbazones: synthesis and antimicrobial activity. Molecules 2007; 12:782-96. [PMID: 17851430 PMCID: PMC6149331 DOI: 10.3390/12040782] [Citation(s) in RCA: 43] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2007] [Revised: 04/05/2007] [Accepted: 04/12/2007] [Indexed: 11/17/2022] Open
Abstract
The chelating behavior of the thiosemicarbazone derivatives of 2-hydroxy-8-R-tricyclo[7.3.1.0.(2,7)]tridecane-13-one (where R = H, CH3, C6H5) towards Co(II), Ni(II) and Cu(II) has been investigated by elemental analysis, molar conductivity measurements, UV-VIS, IR, ESR spectroscopy and thermal studies. It was deduced from the experiments performed that the ligands coordinate to metal ions in different ways--neutral bidentate or mononegative bidentate--depending on the nature of R. Also, if metal acetates are used instead of metal chlorides, the ligands coordinate in a mononegative bidentate fashion, regardless of the nature of R or the thiosemicarbazone type ligand. The antimicrobial activity of the ligands and of the complexes towards samples of Acinetobacter boumanii, Klebsiella pneumoniae, Escherichia coli, Staphylococcus aureus and Pseudomonas aeruginosa was determined.
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Affiliation(s)
- Tudor Rosu
- Inorganic Chemistry Department, University of Bucharest, 23 Dumbrava Rosie Street, sector 2, Bucharest, Romania
- Author to whom correspondence should be addressed; E-mails: or
| | - Aurelian Gulea
- Faculty of Chemistry, Inorganic Chemistry Department, USM-R. Moldavia; E-mail:
| | - Anca Nicolae
- Organic Chemistry Department, University of Bucharest, 90 – 92 Panduri Bd., sector 4, Bucharest, Romania; E-mail:
| | - Rodica Georgescu
- Nuclear Physics and Engineering Institute “Horia Hulubei”, Bucharest, Romania; E-mail:
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205
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Saha NC, Saha† N, Chaudhuri S. X-ray structures of cobalt(III) complexes with bio-relevant pyrazolyl thiosemicarbazone: Indication of structural changes on the increasing bulkiness of the alkyl substituents on thiosemicarbazone moiety. Struct Chem 2007. [DOI: 10.1007/s11224-006-9088-z] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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206
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Sharma R, Nagar M. Synthesis, Structural, and Antibacterial Studies of Some Mixed Ligand Complexes of Zn(II), Cd(II), and Hg(II) Derived From Citral Thiosemicarbazone and N-Phthaloyl Amino Acids. PHOSPHORUS SULFUR 2006. [DOI: 10.1080/10426500600865137] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Affiliation(s)
- Renu Sharma
- a Department of Chemistry , University of Rajasthan , Jaipur , India
| | - Meena Nagar
- a Department of Chemistry , University of Rajasthan , Jaipur , India
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207
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Fahmi N, Gupta IJ, Singh RV. SULFUR BONDED PALLADIUM(II) AND PLATINUM(II) COMPLEXES OF BIOLOGICALLY POTENT THIOAMIDES. PHOSPHORUS SULFUR 2006. [DOI: 10.1080/10426509808036968] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Affiliation(s)
- Nighat Fahmi
- a Department of Chemistry , University of Rajasthan , Jaipur, 302004, India
| | - I. J. Gupta
- b Seed Technology Research, Agriculture Research Station , Durgapura, Jaipur, 302018, India
| | - R. V. Singh
- a Department of Chemistry , University of Rajasthan , Jaipur, 302004, India
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208
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Joseph M, Sreekanth A, Suni V, Kurup MRP. Spectral characterization of iron(III) complexes of 2-benzoylpyridine N(4)-substituted thiosemicarbazones. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2006; 64:637-41. [PMID: 16386946 DOI: 10.1016/j.saa.2005.07.067] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/11/2005] [Accepted: 07/29/2005] [Indexed: 05/06/2023]
Abstract
Three iron(III) complexes (1-3) of 2-benzoylpyridine N(4)-phenyl thiosemicarbazone (HL1) and one iron(III) complex (4) of 2-benzoylpyridine N(4)-cyclohexyl thiosemicarbazone (HL2) were synthesized and characterized by means of different physicochemical techniques viz., molar conductivity measurements, magnetic susceptibility studies and electronic, infrared and EPR spectral studies. The analytical data and the molar conductance measurements of the complexes reveal that two molecules of the ligand and the anion are coordinated to the metal atom in all the four complexes. The magnetic moments of the complexes suggest that they are of low spin. From the infrared spectra of the ligands and the complexes it is confirmed that the ligands coordinate to iron(III) as an anion coordinating via the azomethine nitrogen, pyridyl nitrogen, and the thiolate sulphur. The EPR spectra of the complexes in the polycrystalline state at 298 and 110 K and in DMF solution at 110 K were recorded and all the spectra show three g values indicating that these complexes have rhombic distortion. All the iron(III) complexes in DMF solution at 110 K have similar anisotropic spectra with almost the same gav values, indicating that the bonding in all the complexes is similar and is unaffected by the coordination of the anion.
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Affiliation(s)
- Marthakutty Joseph
- Department of Applied Chemistry, Cochin University of Science and Technology, Kochi 682 022, Kerala, India
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209
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Wilson BA, Venkatraman R, Whitaker C, Tillison Q. Synthesis and structure-activity correlation studies of metal complexes of alpha-N-heterocyclic carboxaldehyde thiosemicarbazones in Shewanella oneidensis. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2006; 2:170-4. [PMID: 16705815 PMCID: PMC3814712 DOI: 10.3390/ijerph2005010170] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
This investigation involved the synthesis of metal complexes to test the hypothesis that structural changes and metal coordination in pyridine thiosemicarbazones affect cell growth and cell proliferation in vitro. Thiosemicarbazones are well known to possess antitumor, antiviral, antibacterial, antimalarial, and other activities. Extensive research has been carried out on aliphatic, aromatic, heterocyclic and other types of thiosemicarbazones and their metal complexes. Due to the pronounced reactivity exhibited by metal complexes of heterocyclic thiosemicarbazones, synthesis and structural characterization of di-2-pyridylketone 4N-phenyl thiosemicarbazone and diphenyl tin (Sn) and platinum (Pt) complexes were undertaken. Shewanella oneidensis MR-1, a metal ion-reducing bacterium, was used as a model organism to explore the biological activity under aerobic conditions. A comparision of the cytotoxic potential of selected ligand and metal-complex thiosemicarbazones on cell growth in wild type MR-1 and mutant DSP-010 Shewanella oneidensis strains at various concentrations (0, 5, 10, 15, 20 or 25 ppm) was performed. The wild type (MR-1) grown in the presence of increasing concentrations of Sn- thiosemicarbazone complexes was comparatively more sensitive (mean cell number = 4.8 × 108 ± 4.3 × 107 SD) than the DSP-010, a spontaneous rifampicillin derivative of the parent strain (mean cell number = 5.6 × 108 ± 6.4 × 107 SD) under comparable aerobic conditions (p=0.0004). No differences were observed in the sensitivity of the wild and mutant types when exposed to various concentrations of diphenyl Pt- thiosemicarbazone complex (p= 0.425) or the thiosemicarbazone ligand (p=0.313). Growth of MR-1 in the presence of diphenyl Sn- thiosemicarbazone was significantly different among treatment groups (p=0.012). MR-1 cell numbers were significantly higher at 5ppm than at 10 to 20ppm (p = 0.05). The mean number of DSP-010 variant strain cells also differed among diphenyl Sn- thiosemicarbazone complex treated groups (p=0.051). In general, there was an increasing trend in the number of cells from about 5.0 × 108 cells (methanol control group) to about 6.0 × 108 cells (25ppm). The number of cells in methanol control group was significantly lower than cell numbers at 20ppm and 25ppm (p = 0.05), and numbers at 5ppm treatment were lower than at 20 and 25ppm (p = 0.05). Furthermore, a marginally significant difference in the number of MR-1 cells was observed among diphenyl Pt- thiosemicarbazone complex treatment groups (p = 0.077), and an increasing trend in the number of cells was noted from ~5.0 × 108 cells (methanol control group) to ~5.8 × 108 cells (20ppm). In contrast, the DSP-010 variant strain showed no significant differences in cell numbers when treated with various concentrations of diphenyl Pt- thiosemicarbazone complex (p = 0.251). Differences in response to Sn- metal complex between MR-1 and DSP-010 growing cultures indicate that biological activity to thiosemicarbazone metal complexes may be strain specific.
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Affiliation(s)
- Barbara A Wilson
- Department of Biology/Genetics, College of Science, Engineering and Technology, Jackson State University, 1400 J.R. Lynch Street, P.O. Box 18540, Jackson, Mississippi, USA.
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210
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Maurya MR, Kumar A, Abid M, Azam A. Dioxovanadium(V) and μ-oxo bis[oxovanadium(V)] complexes containing thiosemicarbazone based ONS donor set and their antiamoebic activity. Inorganica Chim Acta 2006. [DOI: 10.1016/j.ica.2006.02.032] [Citation(s) in RCA: 65] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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211
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Pedersen LEK, Svendsen A, Klemmensen PD. Synthesis and insect growth regulating activity of thiosemicarbazones of methyl 2-pyridyl ketones. ACTA ACUST UNITED AC 2006. [DOI: 10.1002/ps.2780150507] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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212
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Neto JL, de Lima GM, Beraldo H. Platinum and palladium complexes of thiosemicarbazones derived of 2-acetylthiophene: Synthesis and spectral studies. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2006; 63:669-72. [PMID: 16024282 DOI: 10.1016/j.saa.2005.06.016] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/04/2005] [Accepted: 06/08/2005] [Indexed: 05/03/2023]
Abstract
The reaction of 2-acetylthiophene thiosemicarbazone (2-HATT) and 2-acetylthiophene 4-phenylthiosemicarbazone (2-HAT-4-FT) with Pd(COD)Cl(2) (COD = 1,5-cyclooctadiene) and trans-Pt(2)PEt(3)Cl(4) yielded four new metal complexes: [Pd(2-HATT)Cl(2)] (1), [Pd(2-ATT)(2)] (2), [Pd(2-AT-4-FT)Cl] (3) and [Pt(2-ATT)(PEt(3))Cl] (4). Apart from compound 3 all the others were characterised by (1)H and (13)C{(1)H} NMR, infrared spectroscopy, and elemental analysis. Multinuclear NMR experiments of (31)P{(1)H} and (195)Pt{(1)H} of complex 4 have revealed that the ligand 2-HATT behaves as a bidentate chelating agent towards Pd(COD)Cl(2) and trans-Pt(2)PEt(3)Cl(4) whereas ligand 2-HAT-4-FT forms a tridentate chelating complex with Pd(COD)Cl(2).
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Affiliation(s)
- J L Neto
- Departamento de Química, ICEx, Universidade Federal de Minas Gerias, UFMG, Avenida Antonio Carlos 6627, Belo Horizonte 31270-901, MG, Brazil
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213
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Suni V, Prathapachandra Kurup MR, Nethaji M. Structural and spectral perspectives of a novel thiosemicarbazone synthesized from di-2-pyridyl ketone and 4-phenyl-3-thiosemicarbazide. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2006; 63:174-81. [PMID: 16344250 DOI: 10.1016/j.saa.2005.05.001] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/18/2005] [Revised: 04/30/2005] [Accepted: 05/02/2005] [Indexed: 05/05/2023]
Abstract
A new thiosemicarbazone, HL is synthesized from di-2-pyridyl ketone and 4-phenyl-3-thiosemicarbazide and structurally and spectrochemically characterized. 1H NMR, 13C NMR, COSY, HMQC and IR spectra of the compound are studied and the proton magnetic resonance spectrum reveals some unprecedented observations. The thione form is predominant in the solid state, as supported by the crystal structure and IR data, while a thiol-thione equilibrium is proposed in the solution state by NMR studies. The compound crystallizes into a monoclinic lattice with space group C2/c and the ZE conformation is exhibited by the thiosemicarbazone. Intra- and intermolecular hydrogen-bonding interactions give rise to a two-dimensional packing in the crystal lattice.
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Affiliation(s)
- V Suni
- Department of Applied Chemistry, Cochin University of Science and Technology, Kochi 682022, Kerala, India
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214
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Structural, antimicrobial and spectral studies of copper(II) complexes of 2-benzoylpyridine N(4)-phenyl thiosemicarbazone. Polyhedron 2006. [DOI: 10.1016/j.poly.2005.07.006] [Citation(s) in RCA: 141] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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215
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Gobis K, Foks H, Zwolska Z, Augustynowicz-Kopeć E. Synthesis of 2-Aminoaryl-5-Substituted-1,3,4- Thiadiazoles in a Thermal 1,3-Dipolar Cycloaddition Reaction. PHOSPHORUS SULFUR 2005. [DOI: 10.1080/104265090930399] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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216
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Ambident Properties of 4-Substituted Thiosemicarbazides in Condensations with Fluoroacetic Acids. RUSSIAN JOURNAL OF ORGANIC CHEMISTRY 2005. [DOI: 10.1007/s11178-005-0376-7] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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217
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Synthesis, spectroscopy and cyclic voltammetry of new iron(III) complexes with 5-methyl-3-formyl pyrazole 3-hexamethyleneiminyl thiosemicarbazone (HMPz3Hex): X-ray crystallographic identification of [Fe(MPz3Hex)2]ClO4 · 2H2O with an indication for unusual rotation about the azomethine double bond on complexation with iron(III). TRANSIT METAL CHEM 2005. [DOI: 10.1007/s11243-005-1029-y] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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218
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Saha NC, Butcher RJ, Chaudhuri S, Saha N. Synthesis and spectroscopic characterisation of new nickel (II) complexes with 5-methyl-3-formylpyrazole-3-piperidinylthiosemicarbazone (HMPz3Pi): X-ray structures of HMPz3Pi and [Ni(HMPz3Pi)2]Cl2·2H2O with indication for unusual rotation about the azomethine double bond of the free ligand on complexation. Polyhedron 2005. [DOI: 10.1016/j.poly.2005.01.024] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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219
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Plumitallo A, Cardia MC, Distinto S, DeLogu A, Maccioni E. Synthesis and anti-microbial activity evaluation of some new 1-benzoyl-isothiosemicarbazides. ACTA ACUST UNITED AC 2005; 59:945-52. [PMID: 15598429 DOI: 10.1016/j.farmac.2004.07.012] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2004] [Accepted: 07/27/2004] [Indexed: 11/21/2022]
Abstract
The synthesis of some aroylisothiosemicarbazides was accomplished and their biological activity against bacteria, fungi, and mycobacteria was investigated. Different synthetic pathways were followed according to the kind of substituents that were introduced on both the aroyl ring and the sulfur atom. Anti-bacterial activity was measured against Staphylococcus aureus, S. epidermidis, Streptococcus agalactiae and S. faecalis, Escherichia coli, and Salmonella typhi, while antifungal activity was evaluated against C. albicans. Two species, Mycobacterium tuberculosis H37RV and Mycobacterium avium ATCC19421, were employed to evaluate antimycobacterial activity.
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Affiliation(s)
- A Plumitallo
- Dipartimento Farmaco Chimico Tecnologico, Via Ospedale 72, 09124 Cagliari, Italy
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220
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Abdel-Gawad SM, Elgendy MS, Abdelhamid AO. Reactions with hydrazonoyl halides 46 1: Synthesis of some new 2,3-dihydro-1,3,4-thiadiazoles and triazolino[4,3-a]pyrimidines as antimicrobial agents. J Sulphur Chem 2005. [DOI: 10.1080/17415990512331334883] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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221
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Abbas AA, Rateb NM. A Facile and Convenient Method for the Synthesis of Bis-Hydrazonoyl Halides and Bis-(1,3,4-Thiadiazol-3-ylphenoxy)Ethers. PHOSPHORUS SULFUR 2005. [DOI: 10.1080/104265090517226] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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222
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Moustapha C, Abdel‐Riheem NA, Abdelhamid AO. Reactions with Hydrazonoyl Halides 40: Synthesis of Some New 1,3,4‐Thiadiazoles, Pyrrolo[3,4‐c]pyrazoles, Pyrazoles, and Pyrazolo[3,4‐d]pyridazines. SYNTHETIC COMMUN 2005. [DOI: 10.1081/scc-200048444] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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223
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Synthesis, spectral characterization and crystal structure of 2-benzoylpyridine N(4)-cyclohexylthiosemicarbazone. J Mol Struct 2004. [DOI: 10.1016/j.molstruc.2004.06.018] [Citation(s) in RCA: 36] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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224
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Thomas AM, Naik AD, Nethaji M, Chakravarty AR. Synthesis, crystal structure and photo-induced DNA cleavage activity of ternary copper(II)-thiosemicarbazone complexes having heterocyclic bases. Inorganica Chim Acta 2004. [DOI: 10.1016/j.ica.2004.01.031] [Citation(s) in RCA: 67] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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225
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Nomiya K, Sekino K, Ishikawa M, Honda A, Yokoyama M, Chikaraishi Kasuga N, Yokoyama H, Nakano S, Onodera K. Syntheses, crystal structures and antimicrobial activities of monomeric 8-coordinate, and dimeric and monomeric 7-coordinate bismuth(III) complexes with tridentate and pentadentate thiosemicarbazones and pentadentate semicarbazone ligands. J Inorg Biochem 2004; 98:601-15. [PMID: 15041240 DOI: 10.1016/j.jinorgbio.2004.01.011] [Citation(s) in RCA: 69] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2003] [Revised: 01/13/2004] [Accepted: 01/29/2004] [Indexed: 10/26/2022]
Abstract
Novel bismuth(III) complexes 1-4 with the tridentate thiosemicarbazone ligand of 2N1S donor atoms [Hmtsc (L1); 2-acetylpyridine (4N-morpholyl thiosemicarbazone)], the pentadentate double-armed thiosemicarbazone ligand of 3N2S donor atoms [H2dmtsc (L3); 2,6-diacetylpyridine bis(4N-morpholyl thiosemicarbazone)] and the pentadentate double-armed semicarbazone ligand of 3N2O donor atoms [H2dasc (L4b); 2,6-diacetylpyridine bis(semicarbazone)], were prepared by reactions of bismuth(III) nitrate or bismuth(III) chloride and characterized by elemental analysis, thermogravimetric and differential thermal analysis (TG/DTA), FTIR and NMR (1H and 13C) spectroscopy. The crystal and molecular structures of complexes 1, 2a, 2b and 4b, and the "free" ligand L1 were determined by single-crystal X-ray structure analysis. The dimeric 7-coordinate bismuth(III) complex [Bi(dmtsc)(NO3)]2, 1, and the monomeric 7-coordinate complexes [Bi(Hdasc)(H2O)](NO3)2.H2O (major product), 2a, and [Bi(dasc)(H2O)]NO3.H2O (minor product), 2b, all with pentagonal bipyramidal bismuth(III) centers, are depicted with one electron pair (6s2) of the bismuth(III) atom, deprotonated forms of multidentate thiosemicarbazone or semicarbazone ligands, and monodentate NO3 or H2O ligands, respectively. These complexes are related to the positional isomers of one electron pair of the bismuth(III) atom; 1 has an electron pair positioned in the pentagonal plane (basal position), while 2a and 2b have an electron pair in the apical position. The monomeric 8-coordinate complex [Bi(mtsc)2(NO3)], 4b, which was obtained by slow evaporation in MeOH of the 1.5 hydrates 4a, was depicted with one electron pair of the bismuth(III) atom, two deprotonated mtsc- ligand and one nitrate ion. On the other hand, crystals of the complex "[Bi(mtsc)Cl2]", 3, prepared by a reaction of BiCl3 with L1 showed several polymorphs (3a, 3b, 3c and 3d) due to coordination and/or solvation of dimethyl sulfoxide (DMSO) used in the crystallization. Bismuth(III) complexes 1 and 4a showed selective and effective antibacterial activities against Gram-positive bacteria. The structure-activity relationship was discussed.
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Affiliation(s)
- Kenji Nomiya
- Department of Materials Science, Faculty of Science, Kanagawa University, Hiratsuka, Kanagawa 259-1293, Japan.
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226
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Somogyi L. Synthesis, Oxidation and Dehydro- genation of Cyclic N,O- and N,S-Acetals. Part 1. Transformation of N,S-Acetals: 3-Acyl-1,3,4-thiadiazolines. HETEROCYCLES 2004. [DOI: 10.3987/com-04-10137] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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227
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Bharti N, Sharma S, Naqvi F, Azam A. New palladium(II) complexes of 5-nitrothiophene-2-carboxaldehyde thiosemicarbazones. synthesis, spectral studies and in vitro anti-amoebic activity. Bioorg Med Chem 2003; 11:2923-9. [PMID: 12788362 DOI: 10.1016/s0968-0896(03)00213-x] [Citation(s) in RCA: 67] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
Abstract
Thiosemicarbazones (1-7) and their palladium(II) complexes (1a-7a) of the type [Pd(TSCN)Cl(2)] (where TSCN=thiosemicarbazone) were prepared from 5-nitro thiophene-2-carboxaldehyde and [Pd(DMSO)(2)Cl(2)], respectively. Coordination via the thionic sulphur and the azomethine nitrogen atom of the thiosemicarbazones to the metal ion were confirmed by spectral data. These compounds were screened in vitro against (HK-9) strain of Entamoeba histolytica possess amoebicidal properties. Enhancement of antiamoebic activity resulted due to the introduction of palladium metal in the thiosemicarbazone moiety. The most promising of the group tested are [Pd(5-N-2-TCA-COTSCN)Cl(2)] and [Pd(5-N-2-TCA-AdmTSCN)Cl(2)] comparable to that of metronidazole.
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Affiliation(s)
- Neelam Bharti
- Department of Chemistry, Jamia Millia Islamia, Jamia Nagar, New Delhi 110025, India
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228
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Abdel-Riheem NA, Rateb NM, Al-Atoom AA, Abdelhamid AO. 1,3,4-Thia- and -selenadiazole and 1,2,4-triazolo[4,3-a]pyrimidine derivatives from hydrazonoyl halides. HETEROATOM CHEMISTRY 2003. [DOI: 10.1002/hc.10156] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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229
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Gokhale NH, Padhye SB, Billington DC, Rathbone DL, Croft SL, Kendrick HD, Anson CE, Powell AK. Synthesis and characterization of copper(II) complexes of pyridine-2-carboxamidrazones as potent antimalarial agents. Inorganica Chim Acta 2003. [DOI: 10.1016/s0020-1693(03)00047-1] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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230
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Naik AD, Reddy PA, Nethaji M, Chakravarty AR. Ternary copper(II) complexes of thiosemicarbazones and heterocyclic bases showing N3OS coordination as models for the type-2 centers of copper monooxygenases. Inorganica Chim Acta 2003. [DOI: 10.1016/s0020-1693(03)00091-4] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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231
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Bharti SN, Naqvi F, Azam A. Synthesis, spectral studies and screening for amoebicidal activity of new palladium(II) complexes derived from thiophene-2-carboxaldehyde thiosemicarbazones. Bioorg Med Chem Lett 2003; 13:689-92. [PMID: 12639559 DOI: 10.1016/s0960-894x(02)01005-3] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
In view of the antiamoebic properties observed for many thiophene-2-carboxaldehyde thiosemicarbazones, a series of N(4)-substituted thiosemicarbazones metal complexes derived from thiophene-2-carboxaldehyde was prepared for evaluation against Entamoeba histolytica. Reaction of thiophene-2-carboxaldehyde with cycloalkylaminothiocarbonylhydrazines having different amines gave the corresponding thiosemicarbazones. Reaction of latter with [Pd(DMSO)(2)Cl(2)] gave requisite palladium thiosemicarbazone complexes of the type [Pd(TSC)Cl(2)] (where TSC=thiosemicarbazones). Screening of antiamoebic activity of these compounds was assayed in vitro against (HM-1:1MSS) strain of E. histolytica. Enhancement of antiamoebic resulted from introducing palladium metal in the thiosemicarbazone moiety. Among the studied compounds, [Pd(2-TCA-1,2,3,4-THQTSC)Cl(2)] (2a) showed better activity.
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232
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Saha NC, Butcher RJ, Chaudhuri S, Saha N. Synthesis and spectroscopic identification of new iron(III) complexes with 5-methyl-3-formylpyrazole-3-piperidinylthiosemicarbazone (HMPz3Pi): X-ray structure of [Fe(MPz3Pi)2]ClO4·2H2O. Polyhedron 2003. [DOI: 10.1016/s0277-5387(02)01342-6] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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233
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Youssef NS, Hegab KH, Eid AE. Synthesis and Coordinating Properties of New Chromone Thiosemicarbazones Towards Some Transition Metal Ions. ACTA ACUST UNITED AC 2003. [DOI: 10.1081/sim-120025446] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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234
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235
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Synthesis and structural characterisation of new iron(III) complexes with biologically relevant pyrazolyl thiosemicarbazones. Inorganica Chim Acta 2002. [DOI: 10.1016/s0020-1693(02)00935-0] [Citation(s) in RCA: 20] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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236
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Cocco MT, Congiu C, Onnis V, Pellerano ML, De Logu A. Synthesis and antimycobacterial activity of new S-alkylisothiosemicarbazone derivatives. Bioorg Med Chem 2002; 10:501-6. [PMID: 11814835 DOI: 10.1016/s0968-0896(01)00310-8] [Citation(s) in RCA: 41] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A new series of S-alkylisothiosemicarbazones of 3- and 4-pyridincarboxaldehyde and 4-fluoro- and 4-trifluoromethylbenzaldehyde was synthesized and evaluated for biological activity against various Mycobacterium strains. Inhibitory activity against Mycobacterium tuberculosis H37Rv ATCC 27294 and INH-R ATCC 35822 was compared with activity against clinical isolated Mycobacteria as well as against MOTT. Some of newly prepared compounds showed best inhibitory values against clinical isolated Mycobacteria, besides to low citotoxicity values.
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Affiliation(s)
- Maria Teresa Cocco
- Dipartimento di Tossicologia, Universita di Cagliari, Via Ospedale 72-09124, Cagliari, Italy.
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237
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de Lima G, Neto J, Beraldo H, Siebald H, Duncalf D. Structural and spectral studies of thiosemicarbazones derived from 2-acetylthiophene. J Mol Struct 2002. [DOI: 10.1016/s0022-2860(01)00664-0] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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238
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Shailendra NS, Bharti N, Gonzalez Garza MT, Cruz-Vega DE, Castro Garza J, Saleem K, Naqvi F, Azam A. Synthesis, characterisation and antiamoebic activity of new thiophene-2-carboxaldehyde thiosemicarbazone derivatives and their cyclooctadiene Ru(II) complexes. Bioorg Med Chem Lett 2001; 11:2675-8. [PMID: 11591499 DOI: 10.1016/s0960-894x(01)00504-2] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
Reaction of new thiosemicarbazones (1-4) derived from thiophene-2-carboxaldehyde and cycloalkylaminothiocarbonylhydrazine with [Ru(eta(4)-C8H12)(CH3CN)2Cl2] leads to form complexes (1a-4a) of the type [Ru(eta(4)-C8H12)(TSC)Cl2] (where TSC=thiosemicarbazone). All the compounds have been characterised by elemental analysis, IR, 1H NMR, electronic spectra and thermogravimetric analysis. It is concluded that the thionic sulphur and the azomethine nitrogen atom of the ligands are bonded to the metal ion. In vitro antiamoebic screening against (HK-9) strain of Entamoeba histolytica indicated that the Ru(II) complexes of thiophene-2-carboxaldehyde thiosemicarbazones were found more active than the thiosemicarbazones.
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Affiliation(s)
- N S Shailendra
- Department of Chemistry, Jamia Millia Islamia, New Delhi 110025, Jamia Nagar, India
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239
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The role of conformational and electronic parameters of thiosemicarbazone and thiosemicarbazide derivatives for their dermal toxicity. ACTA ACUST UNITED AC 2001. [DOI: 10.1016/s0166-1280(01)00576-0] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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240
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Vaillancourt VA, Larsen SD, Tanis SP, Burr JE, Connell MA, Cudahy MM, Evans BR, Fisher PV, May PD, Meglasson MD, Robinson DD, Stevens FC, Tucker JA, Vidmar TJ, Yu JH. Synthesis and biological activity of aminoguanidine and diaminoguanidine analogues of the antidiabetic/antiobesity agent 3-guanidinopropionic acid. J Med Chem 2001; 44:1231-48. [PMID: 11312923 DOI: 10.1021/jm000094n] [Citation(s) in RCA: 43] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Abstract
3-Guanidinopropionic acid (1) has been demonstrated both to improve insulin sensitivity and to promote weight loss selectively from adipose tissue in animal models of non-insulin-dependent diabetes mellitus (NIDDM). However, 1 has also been shown to be a substrate for both the creatine transporter and creatine kinase, leading to marked accumulation in muscle tissue as the corresponding N-phosphate. The corresponding aminoguanidine analogue 2 was recently discovered to retain the antidiabetic activity of 1 while being markedly less susceptible to creatine-like metabolism, suggesting that it should have less potential to accumulate in muscle. Further structural modification of 2 was undertaken to investigate whether the antidiabetic potency could be augmented while maintaining resistance to creatine-like metabolism. Modifications such as alpha-alkylation, homologation, and bioisosteric replacement of the aminoguanidine all were detrimental to antidiabetic activity. However, the simple regioisomeric aminoguanidinoacetic acid 9 and diaminoguanidinoacetic acid analogue 7 were found to be equipotent to 2, leading eventually to the discovery of the significantly more potent diaminoguanidinoacetic acid regioisomers 52 and 53. Further attempts to modify the more active template represented by 52 led only to reductions in antidiabetic activity. Each of the new active analogues displayed the same resistance to creatine-like metabolism as 2. Further testing of 7, 9, and 53 in obese diabetic ob/ob mice confirmed that weight loss is induced selectively from adipose tissue, similar to the lead 1. Administration of 53 to insulin-resistant rhesus monkeys led to reductions in both fasting and post-prandial plasma glucose levels with concomitant reductions in plasma insulin levels, suggesting that the compound improved the action of endogenous insulin. Compounds 7 and 53 were selected for further preclinical development.
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Affiliation(s)
- V A Vaillancourt
- Departments of Medicinal Chemistry, Pharmacology, and Research Biostatistics, Pharmacia Corporation, 301 Henrietta Street, Kalamazoo, Michigan 49007, USA.
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241
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Bansal A, Singh RV. SYNTHETIC AND SPECTROSCOPIC ASPECTS OF TETRAAZAMACROCYCLIC COMPLEXES OF PALLADIUM(II). ACTA ACUST UNITED AC 2001. [DOI: 10.1081/sim-100002226] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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242
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Kasuga NC, Sekino K, Koumo C, Shimada N, Ishikawa M, Nomiya K. Synthesis, structural characterization and antimicrobial activities of 4- and 6-coordinate nickel(II) complexes with three thiosemicarbazones and semicarbazone ligands. J Inorg Biochem 2001; 84:55-65. [PMID: 11330482 DOI: 10.1016/s0162-0134(00)00221-x] [Citation(s) in RCA: 163] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
To investigate the relationship between antimicrobial activities and the molecular structures of nickel(II) complexes with thiosemicarbazone and semicarbazone ligands, nickel(II) complexes with ligands Hmtsc, Hatsc, Hasc and H2dmtsc, were prepared and characterized by elemental analysis, FT-IR, 1H and 13C NMR spectroscopies, magnetic susceptibility measurements, UV-Vis absorption spectra, TG/DTA and single-crystal X-ray analysis. Their antimicrobial activities were evaluated by the MIC against four bacteria (B. subtilis, S. aureus, E. coli and P. aeruginosa), two yeasts (C. albicans and S. cerevisiae) and two molds (A. niger and P. citrinum). The 4-coordinate, diamagnetic nickel(II) complexes showed antimicrobial activities which were different from those of free ligands or the starting nickel(II) compounds; [Ni(mtsc)(OAc)] 1 showed selective and effective antimicrobial activities against two Gram-positive bacteria (B. subtilis and S. aureus) and modest activities against a yeast (S. cerevisiae), [Ni(mtsc)Cl] 3 exhibited moderate activities against a Gram-positive bacterium (S. aureus), and [Ni(atsc)(OAc)] 5 showed modest activities against two Gram-positive bacteria (B. subtilis and S. aureus). On the other hand, the 6-coordinate, paramagnetic nickel(II) complexes with two protonated or deprotonated ligands ([Ni(mtsc)2] 2, [Ni(atsc)(mtsc)] 4, [Ni(atsc)2] 6, [Ni(Hatsc)2](NO3)(2)7, [Ni(Hatsc)2]Cl(2)8 and [Ni(Hasc)2](OAc)(2)9) and the sterically crowded 4-coordinate, diamagnetic nickel(II) complex ([Ni(dmtsc)] 10) did not inhibit the growth of the test organisms. The structure-activity correlation in this series of nickel(II) complexes was discussed based on their ligand-replacement abilities.
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Affiliation(s)
- N C Kasuga
- Department of Materials Science, Faculty of Science, Kanagawa University, Hiratsuka, Japan
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243
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Kinnamon KE, Engle RR, Poon BT, Ellis WY, McCall JW, Dzimianski MT. Anticancer agents suppressive for adult parasites of filariasis in Mongolian jirds. PROCEEDINGS OF THE SOCIETY FOR EXPERIMENTAL BIOLOGY AND MEDICINE. SOCIETY FOR EXPERIMENTAL BIOLOGY AND MEDICINE (NEW YORK, N.Y.) 2000; 224:45-9. [PMID: 10782046 DOI: 10.1046/j.1525-1373.2000.22364.x] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
Eight chemical structures not previously reported to possess antifilarial activity have been identified. A total of 79 compounds with anticancer properties were evaluated for possible macrofilaricidal activity against Brugia pahangi and Acanthocheilonema viteae transplanted into male Mongolian jirds (Meriones unguiculatus). All eight active compounds were suppressive for the onchocerciasis type (Acanthocheilonema viteae) of the disease. None was macrofilaricidal for the lymphatic form (Brugia pahangi). These new structures may represent a nucleus around which effective drugs can be synthesized.
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Affiliation(s)
- K E Kinnamon
- Division of Experimental Therapeutics, Walter Reed Army Institute of Research, Washington, D.C. 20307-5100, USA
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244
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Cardia MC, Begala M, Delogu A, Maccioni E, Plumitallo A. Synthesis and antimicrobial activity of novel arylideneisothiosemicarbazones. FARMACO (SOCIETA CHIMICA ITALIANA : 1989) 2000; 55:93-8. [PMID: 10782378 DOI: 10.1016/s0014-827x(99)00124-x] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
Arylidenimidazoles bearing a thioethereal function in the position 2 of the imidazole ring show good antimicrobial activity. We now report on the synthesis and the biological properties of some novel arylidenisothiosemicarbazones, structurally related to the arylideneiminoimidazoles of which they can be considered the linear precursors. Particular attention has been put on the influence of structural modifications on the biological activity.
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Affiliation(s)
- M C Cardia
- Dipartimento Farmaco Chimico Tecnologico, Università di Cagliari, Italy
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245
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Singh N, Gupta S, Nath G. Preparation, spectroscopic investigation and antibacterial activity of some organomercury(II) and organotin(IV) dithio complexes. Appl Organomet Chem 2000. [DOI: 10.1002/1099-0739(200009)14:9<484::aid-aoc29>3.0.co;2-g] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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246
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Synthesis, characterization and antifungal activity of group 12 metal complexes of 2-acetylpyridine-4N-ethylthiosemicarbazone (H4EL) and 2-acetylpyridine-N-oxide-4N-ethylthiosemicarbazone (H4ELO). Polyhedron 1999. [DOI: 10.1016/s0277-5387(99)00309-5] [Citation(s) in RCA: 78] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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247
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Bacchi A, Carcelli M, Pelagatti P, Pelizzi C, Pelizzi G, Zani F. Antimicrobial and mutagenic activity of some carbono- and thiocarbonohydrazone ligands and their copper(II), iron(II) and zinc(II) complexes. J Inorg Biochem 1999; 75:123-33. [PMID: 10450607 DOI: 10.1016/s0162-0134(99)00045-8] [Citation(s) in RCA: 66] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
Several mono- and bis- carbono- and thiocarbonohydrazone ligands have been synthesised and characterised; the X-ray diffraction analysis of bis(phenyl 2-pyridyl ketone) thiocarbonohydrazone is reported. The coordinating properties of the ligands have been studied towards Cu(II), Fe(II), and Zn(II) salts. The ligands and the metal complexes were tested in vitro against Gram positive and Gram negative bacteria, yeasts and moulds. In general, the bisthiocarbonohydrazones possess the best antimicrobial properties and Gram positive bacteria are the most sensitive microorganisms. Bis(ethyl 2-pyridyl ketone) thiocarbonohydrazone, bis(butyl 2-pyridyl ketone)thiocarbonohydrazone and Cu(H2nft)Cl2 (H2nft, bis(5-nitrofuraldehyde)thiocarbonohydrazone) reveal a strong activity with minimum inhibitory concentrations of 0.7 microgram ml-1 against Bacillus subtilis and of 3 micrograms ml-1 against Staphylococcus aureus. Cu(II) complexes are more effective than Fe(II) and Zn(II) ones. All bisthiocarbono- and carbonohydrazones are devoid of mutagenic properties, with the exception of the compounds derived from 5-nitrofuraldehyde. On the contrary a weak mutagenicity, that disappears in the copper complexes, is exhibited by monosubstituted thiocarbonohydrazones.
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Affiliation(s)
- A Bacchi
- Dipartimento di Chimica Generale ed Inorganica, Chimica Analitica, Chimica Fisica, Università di Parma, Italy
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248
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Bermejo E, Carballo R, Castiñeiras A, Domínguez R, Liberta AE, Maichle-Mössmer C, Salberg MM, West DX. Synthesis, Structural Characteristics and Biological Activities of Complexes of ZnII, CdII, HgII, PdII, and PtII with 2-Acetylpyridine 4-Methylthiosemicarbazone. Eur J Inorg Chem 1999. [DOI: 10.1002/(sici)1099-0682(199906)1999:6<965::aid-ejic965>3.0.co;2-a] [Citation(s) in RCA: 57] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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249
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Singh HL, Sharma M, Varshney AK. Synthesis and Characterization of Some Tin(II) Complexes with Semicarbazones and Thiosemicarbazones of Heterocyclic Ketones. ACTA ACUST UNITED AC 1999. [DOI: 10.1080/00945719909349489] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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250
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Hall IH, Chen SY, Rajendran KG, West DX. The Anti‐inflammatory Activiy of Metal Complexes of Heterocyclic Thiosemicarbazones, 2‐Substituted Pyridine
N
‐Oxides and 2‐Pyridylthioureas. Appl Organomet Chem 1998. [DOI: 10.1002/(sici)1099-0739(199609)10:7<485::aid-aoc504>3.0.co;2-#] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Iris H. Hall
- Division of Medicinal Chemistry and Natural Products, School of Pharmacy, CB 7360, University of North Carolina, Chapel Hill, NC 27599, USA
| | - S. Y. Chen
- Division of Medicinal Chemistry and Natural Products, School of Pharmacy, CB 7360, University of North Carolina, Chapel Hill, NC 27599, USA
| | - K. G. Rajendran
- Division of Medicinal Chemistry and Natural Products, School of Pharmacy, CB 7360, University of North Carolina, Chapel Hill, NC 27599, USA
| | - D. X. West
- Department of Chemistry, Illinois State University, Norman, IL 61790–4160, USA
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