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Soukup CRM, Duffin RN, Burke KJ, Andrews PC. Tri-aryl antimony(V) hydroximato and hydroxamato complexes: Combining lipophilic Sb(III/V) and hydroxamic acids in combating Leishmania. J Inorg Biochem 2024; 260:112674. [PMID: 39088910 DOI: 10.1016/j.jinorgbio.2024.112674] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2024] [Revised: 07/15/2024] [Accepted: 07/25/2024] [Indexed: 08/03/2024]
Abstract
Six novel tri-aryl antimony(V) hydroximato complexes (3-8) with composition [SbAr3(O2NCR)] (3: Ar = Ph, R = o-(OH)Ph, 4: Ar = Ph, R = Me, 5: Ar = Ph, R = Ph; 6: Ar = Mes, R = Me, 7: Ar = Mes, R = Ph, 8: Ar = Mes, R = o-(OH)Ph (where Ph = phenyl, Me = methyl, Mes = mesityl)), were synthesised and evaluated for anti-parasitic activity towards Leishmania major (L. major) promastigotes and amastigotes. Complexes of the form [SbAr3(O2NCR)], with the dianionic hydroximato ligand binding O,O'-bidentate to the Sb(V) centre, exist in the solid-state for the mesityl-derived complexes. In contrast, the phenyl-ligated Sb(V) complexes crystallise as the hexacoordinate, hydroxamato species [SbPh3(O2NHC(OH))], with the OH ligand derived from entrained H2O in the crystallisation solvent. It is found that both the aryl and hydroximato ligands are found to influence the bioactivity of the Sb(V) complexes. Complexes 3-8 exhibited varied anti-promastigote activity with IC50 values ranging from 1.53 μM for 6 to 36.0 μM for 3, also reflected in varied anti-amastigote activity with a percentage infection range of 5.50% for 6 to 29.00% for 3 at a concentration of 10 μM. The complexes were relatively non-toxic to human fibroblasts with an IC50 value range of 59.3 μM (7) to ≥100 μM (3-6, 8), and exhibited varied toxicity towards J774.1 A macrophages (IC50: 3.97 (6) to ≥100 (8) μM). All complexes showed enhanced activity compared to the parent hydroxamic acids.
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Affiliation(s)
- Charles R M Soukup
- School of Chemistry, Monash University, Clayton, Melbourne, VIC 3800, Australia
| | - Rebekah N Duffin
- School of Chemistry, Monash University, Clayton, Melbourne, VIC 3800, Australia
| | - Kirralee J Burke
- School of Chemistry, Monash University, Clayton, Melbourne, VIC 3800, Australia
| | - Philip C Andrews
- School of Chemistry, Monash University, Clayton, Melbourne, VIC 3800, Australia.
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2
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Wood JL, Ghosh S, Houston ZH, Fletcher NL, Humphries J, Mardon K, Akhter DT, Tieu W, Ivashkevich A, Wheatcroft MP, Thurecht KJ, Codd R. A first-in-class dual-chelator theranostic agent designed for use with imaging-therapy radiometal pairs of different elements. Chem Sci 2024; 15:11748-11760. [PMID: 39092114 PMCID: PMC11290327 DOI: 10.1039/d4sc02851a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2024] [Accepted: 05/21/2024] [Indexed: 08/04/2024] Open
Abstract
A covalent adduct of DFOB and DOTA separated by a l-lysine residue (DFOB-l-Lys-N 6-DOTA) exhibited remarkable regioselective metal binding, with {1H}-13C NMR spectral shifts supporting Zr(iv) coordinating to the DFOB unit, and Lu(iii) coordinating to the DOTA unit. This first-in-class, dual-chelator theranostic design could enable the use of imaging-therapy radiometal pairs of different elements, such as 89Zr for positron emission tomography (PET) imaging and 177Lu for low-energy β--particle radiation therapy. DFOB-l-Lys-N 6-DOTA was elaborated with an amine-terminated polyethylene glycol extender unit (PEG4) to give DFOB-N 2-(PEG4)-l-Lys-N 6-DOTA (compound D2) to enable installation of a phenyl-isothiocyanate group (Ph-NCS) for subsequent monoclonal antibody (mAb) conjugation (mAb = HuJ591). D2-mAb was radiolabeled with 89Zr or 177Lu to produce [89Zr]Zr-D2-mAb or [177Lu]Lu-D2-mAb, respectively, and in vivo PET/CT imaging and in vivo/ex vivo biodistribution properties measured with the matched controls [89Zr]Zr-DFOB-mAb or [177Lu]Lu-DOTA-mAb in a murine LNCaP prostate tumour xenograft model. The 89Zr-immuno-PET imaging function of [89Zr]Zr-D2-mAb and [89Zr]Zr-DFOB-mAb showed no significant difference in tumour accumulation at 48 or 120 h post injection. [89Zr]Zr-D2-mAb and [177Lu]Lu-D2-mAb showed similar ex vivo biodistribution properties at 120 h post-injection. Tumour uptake of [177Lu]Lu-D2-mAb shown by SPECT/CT imaging at 48 h and 120 h post-injection supported the therapeutic function of D2, which was corroborated by similar therapeutic efficacy between [177Lu]Lu-D2-mAb and [177Lu]Lu-DOTA-mAb, both showing a sustained reduction in tumour volume (>80% over 65 d) compared to vehicle. The work identifies D2 as a trifunctional chelator that could expand capabilities in mixed-element radiometal theranostics to improve dosimetry and the clinical outcomes of molecularly targeted radiation.
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Affiliation(s)
- James L Wood
- The University of Sydney, School of Medical Sciences New South Wales 2006 Australia
- Centre for Advanced Imaging (CAI), Australian Institute for Bioengineering and Nanotechnology (AIBN) and ARC Training Centre for Innovation in Biomedical Imaging Technology, The University of Queensland Brisbane Queensland 4072 Australia
| | - Saikat Ghosh
- Centre for Advanced Imaging (CAI), Australian Institute for Bioengineering and Nanotechnology (AIBN) and ARC Training Centre for Innovation in Biomedical Imaging Technology, The University of Queensland Brisbane Queensland 4072 Australia
| | - Zachary H Houston
- Centre for Advanced Imaging (CAI), Australian Institute for Bioengineering and Nanotechnology (AIBN) and ARC Training Centre for Innovation in Biomedical Imaging Technology, The University of Queensland Brisbane Queensland 4072 Australia
| | - Nicholas L Fletcher
- Centre for Advanced Imaging (CAI), Australian Institute for Bioengineering and Nanotechnology (AIBN) and ARC Training Centre for Innovation in Biomedical Imaging Technology, The University of Queensland Brisbane Queensland 4072 Australia
| | - James Humphries
- Centre for Advanced Imaging (CAI), Australian Institute for Bioengineering and Nanotechnology (AIBN) and ARC Training Centre for Innovation in Biomedical Imaging Technology, The University of Queensland Brisbane Queensland 4072 Australia
| | - Karine Mardon
- Centre for Advanced Imaging (CAI), Australian Institute for Bioengineering and Nanotechnology (AIBN) and ARC Training Centre for Innovation in Biomedical Imaging Technology, The University of Queensland Brisbane Queensland 4072 Australia
| | - Dewan T Akhter
- Centre for Advanced Imaging (CAI), Australian Institute for Bioengineering and Nanotechnology (AIBN) and ARC Training Centre for Innovation in Biomedical Imaging Technology, The University of Queensland Brisbane Queensland 4072 Australia
| | - William Tieu
- Molecular Imaging and Therapy Research Unit (MITRU), South Australian Health and Medical Research Institute (SAHMRI) Adelaide Australia
| | | | | | - Kristofer J Thurecht
- Centre for Advanced Imaging (CAI), Australian Institute for Bioengineering and Nanotechnology (AIBN) and ARC Training Centre for Innovation in Biomedical Imaging Technology, The University of Queensland Brisbane Queensland 4072 Australia
| | - Rachel Codd
- The University of Sydney, School of Medical Sciences New South Wales 2006 Australia
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3
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Tripathi M, Thakur Y, Syed R, Asatkar AK, Alqahtani MS, Das D, Agrawal R, Verma B, Pande R. In-vitro and in-silico analysis and antitumor studies of novel Cu(II) and V(V) complexes of N-p-Tolylbenzohydroxamic acid. Int J Biol Macromol 2024; 268:131768. [PMID: 38663706 DOI: 10.1016/j.ijbiomac.2024.131768] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2023] [Revised: 03/07/2024] [Accepted: 04/20/2024] [Indexed: 05/04/2024]
Abstract
Copper(L2Cu) and vanadium(L2VOCl) complexes of N-p-tolylbenzohydroxamic acid (LH) ligand have been investigated for DNA binding efficacy by multiple analytical, spectral, and computational techniques. The results revealed that complexes as groove binders as evidenced by UV absorption. Fluorescence studies including displacement assay using classical intercalator ethidium bromide as fluorescent probe also confirmed as groove binders. The viscometric analysis too supports the inferences as strong groove binders for both the complexes. Molecular docking too exposed DNA as a target to the complexes which precisely binds L2Cu, in the minor groove region while L2VOCl in major groove region. Molecular dynamic simulation performed on L2Cu complex revealing the interaction of complex with DNA within 20 ns time. The complex stacked into the nitrogen bases of oligonucleotides and the bonding features were intrinsically preserved for longer simulation times. In-vitro cytotoxicity study was undertaken employing MTT assay against the breast cancer cell line (MCF-7). Potential cytotoxic activities were observed for L2Cu and L2VOCl complexes with IC50 values of showing 71 % and 74 % of inhibition respectively.
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Affiliation(s)
- Mamta Tripathi
- School of Studies in Chemistry, Pt. Ravishankar Shukla University, Raipur 492010, Chhattisgarh, India.
| | - Yamini Thakur
- School of Studies in Chemistry, Pt. Ravishankar Shukla University, Raipur 492010, Chhattisgarh, India; Department of Chemistry, Govt. J. Yoganandam Chhattisgarh College, Raipur C.G. - 492001
| | - Rabbani Syed
- Department of Pharmaceutics, College of Pharmacy, King Saud University, P.O. Box 2457, Riyadh 11451, Saudi Arabia
| | - Ashish Kumar Asatkar
- Department of Chemistry, Satya Narayan Agrawal Govt. Arts and Commerce College, Kohka-Neora, Dist. Raipur, CG 493114, India
| | - Mohammad S Alqahtani
- Department of Pharmaceutics, College of Pharmacy, King Saud University, P.O. Box 2457, Riyadh 11451, Saudi Arabia
| | - Devashish Das
- Department of Chemical Engineering, Konkuk University, Seoul, South Korea
| | - Rainy Agrawal
- School of Studies in Chemistry, Pt. Ravishankar Shukla University, Raipur 492010, Chhattisgarh, India
| | - Bharati Verma
- School of Studies in Chemistry, Pt. Ravishankar Shukla University, Raipur 492010, Chhattisgarh, India
| | - Rama Pande
- School of Studies in Chemistry, Pt. Ravishankar Shukla University, Raipur 492010, Chhattisgarh, India
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Sałdyka M, Mielke Z. UV Laser-Induced Photodecomposition of Matrix-Isolated Salicylhydroxamic Acid: Identification of New Isocyanate Complexes. Molecules 2024; 29:862. [PMID: 38398614 PMCID: PMC10892988 DOI: 10.3390/molecules29040862] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2023] [Revised: 02/05/2024] [Accepted: 02/10/2024] [Indexed: 02/25/2024] Open
Abstract
Photochemical reactions of salicylhydroxamic acid were induced using tunable UV laser radiation followed by FTIR spectroscopy. Four pairs of co-products were experimentally found to appear in the photolysis: C6H4(OH)NCO⋯H2O (1), C6H4(OH)C(O)N⋯H2O (2), C6H4(OH)2⋯HNCO (3), and C6H4(OH)NHOH⋯CO (4). The comparison of the theoretical spectra with the experimental ones allowed us to determine the structures of the complexes formed in the matrices. The mechanisms of the reaction channels leading to the formation of the photoproducts were proposed. It was concluded that the first step in the formation of the complexes (1), (2), and (3) was the scission of the N-O bond, whereas the creation of complex (4) was due to cleavage of the C-N bond.
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Affiliation(s)
- Magdalena Sałdyka
- Faculty of Chemistry, University of Wroclaw, F. Joliot-Curie 14, 50-383 Wrocław, Poland
| | - Zofia Mielke
- Faculty of Chemistry, University of Wroclaw, F. Joliot-Curie 14, 50-383 Wrocław, Poland
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5
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Ni J, Wood JL, White MY, Lihi N, Markham TE, Wang J, Chivers PT, Codd R. Reduction-cleavable desferrioxamine B pulldown system enriches Ni(ii)-superoxide dismutase from a Streptomyces proteome. RSC Chem Biol 2023; 4:1064-1072. [PMID: 38033724 PMCID: PMC10685849 DOI: 10.1039/d3cb00097d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2023] [Accepted: 10/02/2023] [Indexed: 12/02/2023] Open
Abstract
Two resins with the hydroxamic acid siderophore desferrioxamine B (DFOB) immobilised as a free ligand or its Fe(iii) complex were prepared to screen the Streptomyces pilosus proteome for proteins involved in siderophore-mediated Fe(iii) uptake. The resin design included a disulfide bond to enable the release of bound proteins under mild reducing conditions. Proteomics analysis of the bound fractions did not identify proteins associated with siderophore-mediated Fe(iii) uptake, but identified nickel superoxide dismutase (NiSOD), which was enriched on the apo-DFOB-resin but not the Fe(iii)-DFOB-resin or the control resin. While DFOB is unable to sequester Fe(iii) from sites deeply buried in metalloproteins, the coordinatively unsaturated Ni(ii) ion in NiSOD is present in a surface-exposed loop region at the N-terminus, which might enable partial chelation. The results were consistent with the notion that the apo-DFOB-resin formed a ternary complex with NiSOD, which was not possible for either the coordinatively saturated Fe(iii)-DFOB-resin or the non-coordinating control resin systems. In support, ESI-TOF-MS measurements from a solution of a model Ni(ii)-SOD peptide and DFOB showed signals that correlated with a ternary Ni(ii)-SOD peptide-DFOB complex. Although any biological implications of a DFOB-NiSOD complex are unclear, the work shows that the metal coordination properties of siderophores might influence an array of metal-dependent biological processes beyond those established in iron uptake.
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Affiliation(s)
- Jenny Ni
- School of Medical Sciences, The University of Sydney New South Wales 2006 Australia
| | - James L Wood
- School of Medical Sciences, The University of Sydney New South Wales 2006 Australia
| | - Melanie Y White
- School of Medical Sciences, The University of Sydney New South Wales 2006 Australia
- Charles Perkins Centre, The University of Sydney New South Wales 2006 Australia
| | - Norbert Lihi
- ELKH-DE Mechanisms of Complex Homogeneous and Heterogeneous Chemical Reactions Research Group, Department of Inorganic and Analytical Chemistry, University of Debrecen Debrecen H-4032 Hungary
| | - Todd E Markham
- School of Medical Sciences, The University of Sydney New South Wales 2006 Australia
| | - Joseph Wang
- School of Medical Sciences, The University of Sydney New South Wales 2006 Australia
| | - Peter T Chivers
- Department of Chemistry, Durham University Durham DH1 3LE UK
- Department of Biosciences, Durham University Durham DH1 3LE UK
| | - Rachel Codd
- School of Medical Sciences, The University of Sydney New South Wales 2006 Australia
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6
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Jia Y, Schroeder B, Pfeifer Y, Fröhlich C, Deng L, Arkona C, Kuropka B, Sticht J, Ataka K, Bergemann S, Wolber G, Nitsche C, Mielke M, Leiros HKS, Werner G, Rademann J. Kinetics, Thermodynamics, and Structural Effects of Quinoline-2-Carboxylates, Zinc-Binding Inhibitors of New Delhi Metallo-β-lactamase-1 Re-sensitizing Multidrug-Resistant Bacteria for Carbapenems. J Med Chem 2023; 66:11761-11791. [PMID: 37585683 DOI: 10.1021/acs.jmedchem.3c00171] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/18/2023]
Abstract
Carbapenem resistance mediated by metallo-β-lactamases (MBL) such as New Delhi metallo-β-lactamase-1 (NDM-1) has become a major factor threatening the efficacy of essential β-lactam antibiotics. Starting from hit fragment dipicolinic acid (DPA), 8-hydroxy- and 8-sulfonamido-quinoline-2-carboxylic acids were developed as inhibitors of NDM-1 with highly improved inhibitory activity and binding affinity. The most active compounds formed reversibly inactive ternary protein-inhibitor complexes with two zinc ions as proven by native protein mass spectrometry and bio-layer interferometry. Modification of the NDM-1 structure with remarkable entropic gain was shown by isothermal titration calorimetry and NMR spectroscopy of isotopically labeled protein. The best compounds were potent inhibitors of NDM-1 and other representative MBL with no or little inhibition of human zinc-binding enzymes. These inhibitors significantly reduced the minimum inhibitory concentrations (MIC) of meropenem for multidrug-resistant bacteria recombinantly expressing blaNDM-1 as well as for several multidrug-resistant clinical strains at concentrations non-toxic to human cells.
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Affiliation(s)
- Yuwen Jia
- Institute of Pharmacy, Freie Universität Berlin, Königin-Luise-Str. 2+4, Berlin 14195, Germany
| | - Barbara Schroeder
- Institute of Pharmacy, Freie Universität Berlin, Königin-Luise-Str. 2+4, Berlin 14195, Germany
| | - Yvonne Pfeifer
- FG13 Nosocomial Pathogens and Antibiotic Resistances, Department of Infectious Diseases, Robert Koch Institute, Burgstraße 37, Wernigerode 38855, Germany
| | - Christopher Fröhlich
- Department of Chemistry, Faculty of Science and Technology, UiT The Arctic University of Norway, Tromsø 9037, Norway
| | - Lihua Deng
- Institute of Pharmacy, Freie Universität Berlin, Königin-Luise-Str. 2+4, Berlin 14195, Germany
| | - Christoph Arkona
- Institute of Pharmacy, Freie Universität Berlin, Königin-Luise-Str. 2+4, Berlin 14195, Germany
| | - Benno Kuropka
- Core Facility BioSupraMol, Institute for Chemistry and Biochemistry, Freie Universität Berlin, Thielallee 63, Berlin 14195, Germany
| | - Jana Sticht
- Core Facility BioSupraMol, Institute for Chemistry and Biochemistry, Freie Universität Berlin, Thielallee 63, Berlin 14195, Germany
| | - Kenichi Ataka
- Department of Physics, Freie Universität Berlin, Arnimallee 14, Berlin 14195, Germany
| | - Silke Bergemann
- Institute of Pharmacy, Freie Universität Berlin, Königin-Luise-Str. 2+4, Berlin 14195, Germany
| | - Gerhard Wolber
- Institute of Pharmacy, Freie Universität Berlin, Königin-Luise-Str. 2+4, Berlin 14195, Germany
| | - Christoph Nitsche
- Research School of Chemistry, Australian National University, Canberra 2601, Australian Capital Territory, Australia
| | - Martin Mielke
- Department of Infectious Diseases, Robert Koch Institute, Nordufer 20, Berlin 13353, Germany
| | - Hanna-Kirsti S Leiros
- Department of Chemistry, Faculty of Science and Technology, UiT The Arctic University of Norway, Tromsø 9037, Norway
| | - Guido Werner
- FG13 Nosocomial Pathogens and Antibiotic Resistances, Department of Infectious Diseases, Robert Koch Institute, Burgstraße 37, Wernigerode 38855, Germany
| | - Jörg Rademann
- Institute of Pharmacy, Freie Universität Berlin, Königin-Luise-Str. 2+4, Berlin 14195, Germany
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7
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Hydroxyurea as a promising ADAM17 inhibitor. Med Hypotheses 2023. [DOI: 10.1016/j.mehy.2023.111021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
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8
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A guanidinium group is an effective mimic of the tertiary carbocation formed by isopentenyl diphosphate isomerase. Bioorg Med Chem Lett 2022; 75:128971. [PMID: 36064124 DOI: 10.1016/j.bmcl.2022.128971] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2022] [Revised: 08/18/2022] [Accepted: 08/27/2022] [Indexed: 11/20/2022]
Abstract
Type I isopentenyl diphosphate isomerase is a metal-dependent enzyme that generates a tertiary carbocation intermediate during catalysis. This study describes an inhibitor (2-guanidinoethyl(dihydroxyphosphorylmethyl)phosphinate) of the isomerase that bears a guanidinium as a carbocation mimic and a phosphinylphosphonate as a non-hydrolyzable metal binding functionality. Inhibition kinetics show that the compound acts in a competitive manner with a Ki value of 129 nM (KM,IPP/Ki = 27). An analogous inhibitor bearing a tertiary ammonium as the carbocation mimic was 50-fold less potent, suggesting that the planar guanidinium is a more effective carbocation mimic. Inhibitors bearing an acylated methanesulfonamide or a hydroxamate group in place of the pyrophosphate inhibited the enzyme at millimolar concentrations indicating that the isomerase is highly specific for binding to the diphosphate portion of the intermediate.
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9
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Bíró L, Buglyó P, Farkas E. Diversity in the Interaction of Amino Acid- and Peptide-Based Hydroxamic Acids with Some Platinum Group Metals in Solution. MOLECULES (BASEL, SWITZERLAND) 2022; 27:molecules27030669. [PMID: 35163937 PMCID: PMC8839353 DOI: 10.3390/molecules27030669] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/09/2021] [Revised: 01/12/2022] [Accepted: 01/17/2022] [Indexed: 11/29/2022]
Abstract
Complexes that incorporate both ligand(s) and metal(s) exhibiting cytotoxic activity can especially be interesting to develop multifunctional drug molecules with desired activities. In this review, the limited number of solution results collected in our laboratory on the complexes of Pd(II) and two other platinum group metals—the half-sandwich type, [(η6-p-cym)Ru(H2O)3]2+, and [(η5-Cp*)Rh(H2O)3]2+—with hydroxamic acid derivatives of three amino acids, two imidazole analogues, and four small peptides are summarized and evaluated. Unlike the limited number of coordination sites of these metal ions (four and three for Pd(II) and the organometallic cations, respectively), the ligands discussed here offer a relatively high number of donor atoms as well as variation in their position within the ligands, resulting in a large versatility of the likely coordination modes. The review, besides presenting the solution equilibrium results, also discusses the main factors, such as (N,N) versus (O,O) chelate; size of chelate; amino-N versus imidazole-N; primary versus secondary hydroxamic function; differences between hydrolytic ability of the metal ions studied; and hydrolysis of the coordinated peptide hydroxamic acids in their Pd(II) complexes, which all determine the coordination modes present in the complexes formed in measurable concentrations in these systems. The options for the quantitative evaluation of metal binding effectivity and selectivity of the various ligands and the comparison with each other by using solution equilibrium data are also discussed.
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10
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Johnson NM, Yang Z, Bloom I, Zhang Z. Enabling High-Temperature and High-Voltage Lithium-Ion Battery Performance through a Novel Cathode Surface-Targeted Additive. ACS APPLIED MATERIALS & INTERFACES 2021; 13:59538-59545. [PMID: 34859660 DOI: 10.1021/acsami.1c18493] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Lithium-ion batteries (LIBs) are being used in locations and applications never imagined when they were first conceived. To enable this broad range of applications, it has become necessary for LIBs to be stable to an ever broader range of conditions, including temperature and energy. Unfortunately, while negative electrodes have received a great deal of focus in electrolyte development, stabilization of positive electrodes remains an elusive target. Here, we report a novel additive that shows the ability to protect positive electrodes against elevated temperatures and voltages. This additive can be used in small quantities, and its targeted behavior allows it to remain functional in complex electrolyte packages. This can prove an effective approach to targeting specific aspects of cell performance.
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Affiliation(s)
- Noah M Johnson
- Chemical Sciences and Engineering Division, Argonne National Laboratory, 9700 S. Cass Ave., Lemont, Illinois 60439, United States
| | - Zhenzhen Yang
- Chemical Sciences and Engineering Division, Argonne National Laboratory, 9700 S. Cass Ave., Lemont, Illinois 60439, United States
| | - Ira Bloom
- Chemical Sciences and Engineering Division, Argonne National Laboratory, 9700 S. Cass Ave., Lemont, Illinois 60439, United States
| | - Zhengcheng Zhang
- Chemical Sciences and Engineering Division, Argonne National Laboratory, 9700 S. Cass Ave., Lemont, Illinois 60439, United States
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11
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Ude Z, Flothkötter N, Sheehan G, Brennan M, Kavanagh K, Marmion CJ. Multi-targeted metallo-ciprofloxacin derivatives rationally designed and developed to overcome antimicrobial resistance. Int J Antimicrob Agents 2021; 58:106449. [PMID: 34644603 DOI: 10.1016/j.ijantimicag.2021.106449] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2021] [Revised: 09/28/2021] [Accepted: 10/02/2021] [Indexed: 10/20/2022]
Abstract
Antimicrobial resistance is a major global threat to human health due to the rise, spread and persistence of multi-drug-resistant bacteria or 'superbugs'. There is an urgent need to develop novel chemotherapeutics to overcome this overarching challenge. The authors derivatized a clinically used fluoroquinolone antibiotic ciprofloxacin (Cip), and complexed it to a copper phenanthrene framework. This resulted in the development of two novel metallo-antibiotics of general formula [Cu(N,N)(CipHA)]NO3 where N,N represents a phenanthrene ligand and CipHA represents a hydroxamic acid of Cip derivative. Comprehensive studies, including a detailed proteomic study in which Staphylococcus aureus cells were exposed to the complexes, were undertaken to gain an insight into their mode of action. These new complexes possess potent antibacterial activity against S. aureus and methicillin-resistant S. aureus. In addition, they were found to be well tolerated in vivo in Galleria mellonella larvae, which has both functional and structural similarities to the innate immune system of mammals. These findings suggest that proteins involved in virulence, pathogenesis, and the synthesis of nucleotides and DNA repair mechanisms are most affected. In addition, both complexes affected similar cell pathways when compared with clinically used Cip, including cationic antimicrobial peptide resistance. The Cu-DPPZ-CipHA (DPPZ = dipyrido[3,2-a:2',3'-c]phenazine) analogue also induces cell leakage, which leads to an altered proteome indicative of reduced virulence and increased stress.
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Affiliation(s)
- Ziga Ude
- Centre for Synthesis and Chemical Biology, Department of Chemistry, RCSI, University of Medicine and Health Sciences, Dublin, Ireland
| | - Nils Flothkötter
- Centre for Synthesis and Chemical Biology, Department of Chemistry, RCSI, University of Medicine and Health Sciences, Dublin, Ireland
| | - Gerard Sheehan
- SSPC Pharma Research Centre, Department of Biology, Maynooth University, Maynooth, Co. Kildare, Ireland
| | - Marian Brennan
- School of Pharmacy and Biomolecular Sciences, RCSI, University of Medicine and Health Sciences, Dublin, Ireland
| | - Kevin Kavanagh
- SSPC Pharma Research Centre, Department of Biology, Maynooth University, Maynooth, Co. Kildare, Ireland.
| | - Celine J Marmion
- Centre for Synthesis and Chemical Biology, Department of Chemistry, RCSI, University of Medicine and Health Sciences, Dublin, Ireland.
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12
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Pacifico R, Destro D, Gillick-Healy MW, Kelly BG, Adamo MFA. Preparation of Acidic 5-Hydroxy-1,2,3-triazoles via the Cycloaddition of Aryl Azides with β-Ketoesters. J Org Chem 2021; 86:11354-11360. [PMID: 34314172 PMCID: PMC8419836 DOI: 10.1021/acs.joc.1c00778] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Herein, a high-yielding cycloaddition reaction of β-ketoesters and azides to provide 1,2,3-triazoles is described. The reactions employing 2-unsubstituted β-ketoesters were found to provide 5-methyl-1,2,3-triazoles, whereas 2-alkyl-substituted β-ketoesters provided 5-hydroxy-1,2,3-triazoles (shown to be relatively acidic) in high yields and as single regioisomers. Several novel compounds were reported and characterized including long-chain 5-hydroxy-1,2,3-triazoles potentially bioisosteric to hydroxamic acids.
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Affiliation(s)
- Roberta Pacifico
- Centre for Synthesis and Chemical Biology (CSCB), Department of Chemistry, Royal College of Surgeons in Ireland, 123 St. Stephen's Green, Dublin 2, Ireland
| | - Dario Destro
- Centre for Synthesis and Chemical Biology (CSCB), Department of Chemistry, Royal College of Surgeons in Ireland, 123 St. Stephen's Green, Dublin 2, Ireland
| | - Malachi W Gillick-Healy
- Centre for Synthesis and Chemical Biology (CSCB), Department of Chemistry, Royal College of Surgeons in Ireland, 123 St. Stephen's Green, Dublin 2, Ireland.,KelAda Pharmachem Ltd., A1.01 Science Centre South, Belfield, Dublin 4, Ireland
| | - Brian G Kelly
- KelAda Pharmachem Ltd., A1.01 Science Centre South, Belfield, Dublin 4, Ireland
| | - Mauro F A Adamo
- Centre for Synthesis and Chemical Biology (CSCB), Department of Chemistry, Royal College of Surgeons in Ireland, 123 St. Stephen's Green, Dublin 2, Ireland
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13
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Yang X, Miao H, Xiao R, Wang L, Zhao Y, Wu Q, Ji Y, Du J, Qin H, Xuan W. Diverse protein manipulations with genetically encoded glutamic acid benzyl ester. Chem Sci 2021; 12:9778-9785. [PMID: 34349951 PMCID: PMC8299518 DOI: 10.1039/d1sc01882e] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2021] [Accepted: 06/16/2021] [Indexed: 01/01/2023] Open
Abstract
Site-specific modification of proteins has significantly advanced the use of proteins in biological research and therapeutics development. Among various strategies aimed at this end, genetic code expansion (GCE) allows structurally and functionally distinct non-canonical amino acids (ncAAs) to be incorporated into specific sites of a protein. Herein, we genetically encode an esterified glutamic acid analogue (BnE) into proteins, and demonstrate that BnE can be applied in different types of site-specific protein modifications, including N-terminal pyroglutamation, caging Glu in the active site of a toxic protein, and endowing proteins with metal chelator hydroxamic acid and versatile reactive handle acyl hydrazide. Importantly, novel epigenetic mark Gln methylation is generated on histones via the derived acyl hydrazide handle. This work provides useful and unique tools to modify proteins at specific Glu or Gln residues, and complements the toolbox of GCE.
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Affiliation(s)
- Xiaochen Yang
- State Key Laboratory and Institute of Elemento-Organic Chemistry, College of Chemistry, Nankai University Tianjin 300071 China
| | - Hui Miao
- State Key Laboratory and Institute of Elemento-Organic Chemistry, College of Chemistry, Nankai University Tianjin 300071 China
| | - Ruotong Xiao
- State Key Laboratory and Institute of Elemento-Organic Chemistry, College of Chemistry, Nankai University Tianjin 300071 China
| | - Luyao Wang
- School of Pharmaceutical Sciences, Tsinghua University 30 Shuangqing Rd. Beijing China
| | - Yan Zhao
- School of Pharmaceutical Sciences, Tsinghua University 30 Shuangqing Rd. Beijing China
| | - Qifan Wu
- State Key Laboratory and Institute of Elemento-Organic Chemistry, College of Chemistry, Nankai University Tianjin 300071 China
| | - Yanli Ji
- State Key Laboratory and Institute of Elemento-Organic Chemistry, College of Chemistry, Nankai University Tianjin 300071 China
| | - Juanjuan Du
- School of Pharmaceutical Sciences, Tsinghua University 30 Shuangqing Rd. Beijing China
| | - Hongqiang Qin
- CAS Key Laboratory of Separation Science for Analytical Chemistry, Dalian Institute of Chemical Physics, Chinese Academy of Sciences (CAS) Dalian, 116023 China
| | - Weimin Xuan
- State Key Laboratory and Institute of Elemento-Organic Chemistry, College of Chemistry, Nankai University Tianjin 300071 China
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14
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Liao Y, Cui R, Xu X, Cheng Q, Li X. Jasmonic Acid- and Ethylene-Induced Mitochondrial Alternative Oxidase Stimulates Marssonina brunnea Defense in Poplar. PLANT & CELL PHYSIOLOGY 2021; 61:2031-2042. [PMID: 32946565 DOI: 10.1093/pcp/pcaa117] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/05/2020] [Accepted: 09/03/2020] [Indexed: 05/23/2023]
Abstract
Mitochondrial processes are implicated in plant response to biotic stress caused by viruses, actinomyces, bacteria and pests, but their function in defense against fungal invasion remains unclear. Here, we investigated the role and regulation of mitochondrial alternative oxidase (AOX) in response to black spot disease caused by the hemibiotrophic fungus Marssonina brunnea in poplar. M. brunnea inoculation induced the transcription of the AOX1a gene in the mitochondrial electron transport chain and of jasmonic acid (JA) and ethylene (ET) biosynthetic genes, with the accumulation of these phytohormones in poplar leaf, while inhibiting the transcript amount of the mitochondrial cytochrome c oxidase gene (COX6b) and genes related to salicylic acid (SA). Enhanced AOX reduced poplar susceptibility to M. brunnea with a higher ATP/ADP ratio while the repressed AOX caused the reverse effect. Exogenous JA and 1-aminocyclopropane-1-carboxylic acid (ACC, a biosynthetic precursor of ET) inhibited the transcript amount of COX6b and consequently increased the ratio of AOX pathway to total respiration. Furthermore, the transcription of CYS C1 and CYS D1 genes catalyzing cyanide metabolism was induced, while the cysteine (CYS) substrate levels reduced upon M. brunnea inoculation; exogenous JA and ACC mimicked the effect of M. brunnea infection on cysteine. Exogenous SA enhanced, while JA and ACC reduced, poplar susceptibility to M. brunnea. Moreover, inhibiting AOX completely prohibited JA- and ET-increased tolerance to M. brunnea in poplar. These observations indicate that the JA- and ET-induced mitochondrial AOX pathway triggers defense against M. brunnea in poplar. This effect probably involves cyanide. These findings deepen our understanding of plant-pathogenic fungi interactions.
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Affiliation(s)
- Yangwenke Liao
- Co-Innovation Center for Sustainable Forestry in Southern China, College of Biology and the Environment, Nanjing Forestry University, No. 159 Longpan Road, Nanjing, Jiangsu 210037, China
| | - Rongrong Cui
- Co-Innovation Center for Sustainable Forestry in Southern China, College of Biology and the Environment, Nanjing Forestry University, No. 159 Longpan Road, Nanjing, Jiangsu 210037, China
| | - Xin Xu
- Co-Innovation Center for Sustainable Forestry in Southern China, College of Biology and the Environment, Nanjing Forestry University, No. 159 Longpan Road, Nanjing, Jiangsu 210037, China
| | - Qiang Cheng
- Co-Innovation Center for Sustainable Forestry in Southern China, College of Biology and the Environment, Nanjing Forestry University, No. 159 Longpan Road, Nanjing, Jiangsu 210037, China
| | - Xiaogang Li
- Co-Innovation Center for Sustainable Forestry in Southern China, College of Biology and the Environment, Nanjing Forestry University, No. 159 Longpan Road, Nanjing, Jiangsu 210037, China
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15
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Zhang XH, Qin-Ma, Wu HP, Khamis MY, Li YH, Ma LY, Liu HM. A Review of Progress in Histone Deacetylase 6 Inhibitors Research: Structural Specificity and Functional Diversity. J Med Chem 2021; 64:1362-1391. [PMID: 33523672 DOI: 10.1021/acs.jmedchem.0c01782] [Citation(s) in RCA: 77] [Impact Index Per Article: 25.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Histone deacetylases (HDACs) are essential for maintaining homeostasis by catalyzing histone deacetylation. Aberrant expression of HDACs is associated with various human diseases. Although HDAC inhibitors are used as effective chemotherapeutic agents in clinical practice, their applications remain limited due to associated side effects induced by weak isoform selectivity. HDAC6 displays unique structure and cellular localization as well as diverse substrates and exhibits a wider range of biological functions than other isoforms. HDAC6 inhibitors have been effectively used to treat cancers, neurodegenerative diseases, and autoimmune disorders without exerting significant toxic effects. Progress has been made in defining the crystal structures of HDAC6 catalytic domains which has influenced the structure-based drug design of HDAC6 inhibitors. This review summarizes recent literature on HDAC6 inhibitors with particular reference to structural specificity and functional diversity. It may provide up-to-date guidance for the development of HDAC6 inhibitors and perspectives for optimization of therapeutic applications.
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Affiliation(s)
- Xin-Hui Zhang
- Collaborative Innovation Center of New Drug Research and Safety Evaluation, Henan Province, Key Laboratory of Technology Drug Preparation (Zhengzhou University), Ministry of Education of China, Key Laboratory of Henan Province for Drug Quality and Evaluation; School of Pharmaceutical Sciences, Zhengzhou University, Zhengzhou 450001, PR China
| | - Qin-Ma
- Collaborative Innovation Center of New Drug Research and Safety Evaluation, Henan Province, Key Laboratory of Technology Drug Preparation (Zhengzhou University), Ministry of Education of China, Key Laboratory of Henan Province for Drug Quality and Evaluation; School of Pharmaceutical Sciences, Zhengzhou University, Zhengzhou 450001, PR China
| | - Hui-Pan Wu
- Collaborative Innovation Center of New Drug Research and Safety Evaluation, Henan Province, Key Laboratory of Technology Drug Preparation (Zhengzhou University), Ministry of Education of China, Key Laboratory of Henan Province for Drug Quality and Evaluation; School of Pharmaceutical Sciences, Zhengzhou University, Zhengzhou 450001, PR China
| | - Mussa Yussuf Khamis
- Collaborative Innovation Center of New Drug Research and Safety Evaluation, Henan Province, Key Laboratory of Technology Drug Preparation (Zhengzhou University), Ministry of Education of China, Key Laboratory of Henan Province for Drug Quality and Evaluation; School of Pharmaceutical Sciences, Zhengzhou University, Zhengzhou 450001, PR China
| | - Yi-Han Li
- Collaborative Innovation Center of New Drug Research and Safety Evaluation, Henan Province, Key Laboratory of Technology Drug Preparation (Zhengzhou University), Ministry of Education of China, Key Laboratory of Henan Province for Drug Quality and Evaluation; School of Pharmaceutical Sciences, Zhengzhou University, Zhengzhou 450001, PR China
| | - Li-Ying Ma
- Collaborative Innovation Center of New Drug Research and Safety Evaluation, Henan Province, Key Laboratory of Technology Drug Preparation (Zhengzhou University), Ministry of Education of China, Key Laboratory of Henan Province for Drug Quality and Evaluation; School of Pharmaceutical Sciences, Zhengzhou University, Zhengzhou 450001, PR China.,China Meheco Topfond Pharmaceutical Co., Ltd., Zhumadian, 463000, PR China
| | - Hong-Min Liu
- Collaborative Innovation Center of New Drug Research and Safety Evaluation, Henan Province, Key Laboratory of Technology Drug Preparation (Zhengzhou University), Ministry of Education of China, Key Laboratory of Henan Province for Drug Quality and Evaluation; School of Pharmaceutical Sciences, Zhengzhou University, Zhengzhou 450001, PR China
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16
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Peng Z, Wang G, Zeng QH, Li Y, Liu H, Wang JJ, Zhao Y. A systematic review of synthetic tyrosinase inhibitors and their structure-activity relationship. Crit Rev Food Sci Nutr 2021; 62:4053-4094. [PMID: 33459057 DOI: 10.1080/10408398.2021.1871724] [Citation(s) in RCA: 48] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Abstract
Tyrosinase is a copper-containing oxidation enzyme, which is responsible for the production of melanin. This enzyme is widely distributed in microorganisms, animals and plants, and plays an essential role in undesirable browning of fruits and vegetables, antibiotic resistance, skin pigment formation, sclerotization of cuticle, neurodegeneration, etc. Hence, it has been recognized as a therapeutic target for the development of antibrowning agents, antibacterial agents, skin-whitening agents, insecticides, and other therapeutic agents. With great potential application in food, agricultural, cosmetic and pharmaceutical industries, a large number of synthetic tyrosinase inhibitors have been widely reported in recent years. In this review, we systematically summarized the advances of synthetic tyrosinase inhibitors in the literatures, including their inhibitory activity, cytotoxicity, structure-activity relationship (SAR), inhibition kinetics, and interaction mechanisms with the enzyme. The collected information is expected to provide a rational guidance and effective strategy to develop novel, potent and safe tyrosinase inhibitors for better practical applications in the future.
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Affiliation(s)
- Zhiyun Peng
- College of Food Science and Technology, Shanghai Ocean University, Shanghai, China
| | - Guangcheng Wang
- Guizhou Provincial Key Laboratory of Pharmaceutics, Guizhou Medical University, Guiyang, China
| | - Qiao-Hui Zeng
- Department of Food Science, Foshan University, Foshan, China
| | - Yufeng Li
- College of Food Science and Technology, Shanghai Ocean University, Shanghai, China
| | - Haiquan Liu
- College of Food Science and Technology, Shanghai Ocean University, Shanghai, China.,Laboratory of Quality & Safety Risk Assessment for Aquatic Products on Storage and Preservation (Shanghai), Ministry of Agriculture, Shanghai, China.,Shanghai Engineering Research Center of Aquatic-Product Processing & Preservation, Shanghai, China
| | - Jing Jing Wang
- College of Food Science and Technology, Shanghai Ocean University, Shanghai, China.,Department of Food Science, Foshan University, Foshan, China.,Laboratory of Quality & Safety Risk Assessment for Aquatic Products on Storage and Preservation (Shanghai), Ministry of Agriculture, Shanghai, China.,Shanghai Engineering Research Center of Aquatic-Product Processing & Preservation, Shanghai, China
| | - Yong Zhao
- College of Food Science and Technology, Shanghai Ocean University, Shanghai, China.,Laboratory of Quality & Safety Risk Assessment for Aquatic Products on Storage and Preservation (Shanghai), Ministry of Agriculture, Shanghai, China.,Shanghai Engineering Research Center of Aquatic-Product Processing & Preservation, Shanghai, China
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17
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Roth L, Gotsbacher MP, Codd R. Immobilized Metal Affinity Chromatography as a Drug Discovery Platform for Metalloenzyme Inhibitors. J Med Chem 2020; 63:12116-12127. [PMID: 32940035 DOI: 10.1021/acs.jmedchem.0c01541] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Immobilized metal-ion affinity chromatography (IMAC) used to purify recombinant proteins features a resin-bound 1:1 Ni(II)-iminodiacetic acid (IDA) complex. This hemi-saturated Ni(II)-IDA system containing exchangeable sites at the metal ion is re-cast as a surrogate of a coordinatively-unsaturated metalloenzyme active site, with utility for selecting compounds with metal-binding groups from mixtures as potential metalloenzyme inhibitors. Exchanging Ni(II) for other metal ions could broaden the scope of metalloenzyme target. This work examined the performance of Cu(II)-, Fe(III)-, Ga(III)-, Ni(II)-, or Zn(II)-IMAC resins to reversibly bind experimental or clinical metalloenzyme inhibitors of Zn(II)-ACE1, Zn(II)-HDAC, Fe(II)/(III)-5-LO or Cu(II)-tyrosinase from a curated mixture (1-17). Each IMAC system gave a distinct selection profile. The Zn(II)-IMAC system selectively bound the thiol-containing Zn(II)-ACE1 inhibitors captopril and omapatrilat, and the Fe(III)-IMAC system selectively bound the Fe(II)/(III)-5-LO inhibitor licofelone, demonstrating a remarkable IMAC-metalloenzyme metal ion match. IMAC provides a simple, water-compatible platform, which could accelerate metalloenzyme inhibitor discovery.
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Affiliation(s)
- Lukas Roth
- School of Medical Sciences (Pharmacology), The University of Sydney, Sydney, New South Wales 2006, Australia
| | - Michael P Gotsbacher
- School of Medical Sciences (Pharmacology), The University of Sydney, Sydney, New South Wales 2006, Australia
| | - Rachel Codd
- School of Medical Sciences (Pharmacology), The University of Sydney, Sydney, New South Wales 2006, Australia
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18
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Shukla AK, Chaudhary AP, Pandey J. Synthesis, spectral analysis, molecular docking and DFT studies of 3-(2, 6-dichlorophenyl)-acrylamide and its dimer through QTAIM approach. Heliyon 2020; 6:e05016. [PMID: 33033758 PMCID: PMC7533364 DOI: 10.1016/j.heliyon.2020.e05016] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2020] [Revised: 07/29/2020] [Accepted: 09/18/2020] [Indexed: 11/23/2022] Open
Abstract
In this paper, an experimental study of (E)-3-(2,6-dichlorophenyl)-acrylamide and its associated dimer were analysed with molecular docking, DFT and QTAIM approach. To spot, describe, and measure the non-covalent interactions (NCIs) of the atoms in the molecules of the monomer and its dimer, some important topological parameters of the charge densities, ρ(r) acquired from the Bader's QTAIM tool are determined, quantitatively. The bond paths are shown to persist for a range of five types of NCIs such as weak conventional (C-H···Cl) and nonconventional (C-O···C and N-O···Cl), medium (N-H···Cl) and strong O-H···O NCIs revealed by the existence of BCPs (ranging from 1.921 - 3.259 Å). A comprehensive explanation of the spectroscopic data like vibrational, electronic, and NMR spectra is reported along with the NLO, reactivity. Hydroxamic acid exhibited an excellent nonlinear optical activity (β0 = 14.8098 × 10−30). To predict the various reactive sites in the molecule, molecular electrostatic potential diagrams were displayed.
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Affiliation(s)
- Akhilesh Kumar Shukla
- Department of Chemistry, Babasaheb Bhimrao Ambedkar University (A Central University), Lucknow 226025, Uttar Pradesh, India
| | - Aniruddh Prasad Chaudhary
- Department of Chemistry, Udai Pratap College (An Autonomous Institution) Varanasi, Uttar Pradesh, India 221002
| | - Jyoti Pandey
- Department of Chemistry, Babasaheb Bhimrao Ambedkar University (A Central University), Lucknow 226025, Uttar Pradesh, India
- Corresponding author.
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19
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Kwon N, Suh JM, Lim MH, Hirao H, Cho J. Mechanistic insight into hydroxamate transfer reaction mimicking the inhibition of zinc-containing enzymes. Chem Sci 2020; 11:9017-9021. [PMID: 34123156 PMCID: PMC8163387 DOI: 10.1039/d0sc02676j] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2020] [Accepted: 08/10/2020] [Indexed: 11/21/2022] Open
Abstract
A hydroxamate transfer reaction between metal complexes has been investigated by a combination of experimental and theoretical studies. A hydroxamate-bound cobalt(ii) complex bearing a tetradentate macrocyclic ligand, [CoII(TBDAP)(CH3C(-NHO)O)]+ (1), is prepared by the reduction of a hydroximatocobalt(iii) complex with a biological reductant. Alternatively, 1 is accessible via a synthetic route for the reaction between the cobalt(ii) complex and acetohydroxamic acid in the presence of a base. 1 was isolated and characterized by various physicochemical methods, including UV-vis, IR, ESI-MS, and X-ray crystallography. The hydroxamate transfer reactivity of 1 was examined with a zinc complex, which was followed by UV-vis and ESI-MS. Kinetic and activation parameter data suggest that the hydroxamate transfer reaction occurs via a bimolecular mechanism, which is also supported by DFT calculations. Moreover, 1 is able to inhibit the activity against a zinc enzyme, i.e., matrix metalloproteinase-9. Our overall investigations of the hydroxamate transfer using the synthetic model system provide considerable insight into the final step involved in the inhibition of zinc-containing enzymes.
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Affiliation(s)
- Nam Kwon
- Department of Emerging Materials Science, DGIST Daegu 42988 Korea
| | - Jong-Min Suh
- Department of Chemistry, KAIST Daejeon 34141 Korea
| | - Mi Hee Lim
- Department of Chemistry, KAIST Daejeon 34141 Korea
| | - Hajime Hirao
- Department of Chemistry, City University of Hong Kong Tat Chee Avenue Kowloon Hong Kong
| | - Jaeheung Cho
- Department of Emerging Materials Science, DGIST Daegu 42988 Korea
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20
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Keth J, Johann T, Frey H. Hydroxamic Acid: An Underrated Moiety? Marrying Bioinorganic Chemistry and Polymer Science. Biomacromolecules 2020; 21:2546-2556. [PMID: 32525665 DOI: 10.1021/acs.biomac.0c00449] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
Even 150 years after their discovery, hydroxamic acids are mainly known as the starting material for the Lossen rearrangement in textbooks. However, hydroxamic acids feature a plethora of existing and potential applications ranging from medical purposes to materials science, based on their excellent complexation properties. This underrated functional moiety can undergo a broad variety of organic transformations and possesses unique coordination properties for a large variety of metal ions, for example, Fe(III), Zn(II), Mn(II), and Cr(III). This renders it ideal for biomedical applications in the field of metal-associated diseases or the inhibition of metalloenzymes, as well as for the separation of metals. Considering their chemical stability and reactivity, their biological origin and both medical and industrial applications, this Perspective aims at highlighting hydroxamic acids as highly promising chelators in the fields of both medical and materials science. Furthermore, the state of the art in combining hydroxamic acids with a variety of polymer structures is discussed and a perspective regarding their vast potential at the interface of bioinorganic and polymer chemistry is given.
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Affiliation(s)
- Jennifer Keth
- Department of Chemistry, Johannes Gutenberg University Mainz, Duesbergweg 10-14, D-55124 Mainz, Germany
| | - Tobias Johann
- Department of Chemistry, Johannes Gutenberg University Mainz, Duesbergweg 10-14, D-55124 Mainz, Germany
| | - Holger Frey
- Department of Chemistry, Johannes Gutenberg University Mainz, Duesbergweg 10-14, D-55124 Mainz, Germany
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21
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Potentially Antibacterial Mixed-Ligand Oxidovanadium(IV) Salicylhydroxamate Complex [VO(acac)SHA]: Synthesis, Characterization and Quantum Mechanical Study. PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES INDIA SECTION A-PHYSICAL SCIENCES 2020. [DOI: 10.1007/s40010-018-0577-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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22
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Tuyet Anh DT, Cuc DT, Thuy Giang LN, Hien NT, Doan VN, Thanh NH, Tuyen NV, Van Kiem P. Design, Synthesis, and Cytotoxic Evaluation of Novel Lupane Triterpenoid Derived Hydroxamates. Nat Prod Commun 2020. [DOI: 10.1177/1934578x20931967] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
A series of new hydroxamate derivatives of lupane triterpenoids has been designed and successfully synthesized. The synthesized compounds were evaluated for their in vitro antitumor activity using the 3-[4,5-dimethylthiazol-2-yl]−2,5-diphenyltetrazolium bromide-based assay against the human cancer cell lines KB and HepG2. Most of these derivatives possess at least moderate cytotoxic activity and the hydroxamate derivative compounds 3c, 3e, 7a, and 15b could be lead compounds for further optimization to develop novel anticancer agents.
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Affiliation(s)
- Dang Thi Tuyet Anh
- Institute of Chemistry, Vietnam Academy of Science and Technology (VAST), Cau Giay, Hanoi, Vietnam
- Graduate University of Science and Technology, Cau Giay, Hanoi, Vietnam
| | - Dinh Thi Cuc
- Institute of Chemistry, Vietnam Academy of Science and Technology (VAST), Cau Giay, Hanoi, Vietnam
- Graduate University of Science and Technology, Cau Giay, Hanoi, Vietnam
| | - Le Nhat Thuy Giang
- Institute of Chemistry, Vietnam Academy of Science and Technology (VAST), Cau Giay, Hanoi, Vietnam
- Graduate University of Science and Technology, Cau Giay, Hanoi, Vietnam
| | - Nguyen Thi Hien
- Faculty of Environment, Vietnam National University of Agriculture, Vietnam
| | - Vu Ngoc Doan
- Le Quy Don Technical University, Cau Giay, Hanoi, Vietnam
| | - Nguyen Ha Thanh
- Institute of Chemistry, Vietnam Academy of Science and Technology (VAST), Cau Giay, Hanoi, Vietnam
| | - Nguyen Van Tuyen
- Institute of Chemistry, Vietnam Academy of Science and Technology (VAST), Cau Giay, Hanoi, Vietnam
- Graduate University of Science and Technology, Cau Giay, Hanoi, Vietnam
| | - Phan Van Kiem
- Graduate University of Science and Technology, Cau Giay, Hanoi, Vietnam
- Institute of Marine Biochemistry, Vietnam Academy of Science and Technology (VAST), Cau Giay, Hanoi, Vietnam
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23
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Katkova MA, Zabrodina GS, Rumyantcev RV, Zhigulin GY, Ketkov SY, Lyssenko KA, Fomina IG, Eremenko IL. pH‐Responsive Switching Properties of a Water‐Soluble Metallamacrocyclic Phenylalaninehydroximate La(III)–Cu(II) Complex: Insight into Tuning Protonation Ligand States. Eur J Inorg Chem 2019. [DOI: 10.1002/ejic.201900536] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Marina A. Katkova
- G. A. Razuvaev Institute of Organometallic Chemistry Russian Academy of Sciences 603950 Nizhnii Novgorod Russian Federation
| | - Galina S. Zabrodina
- G. A. Razuvaev Institute of Organometallic Chemistry Russian Academy of Sciences 603950 Nizhnii Novgorod Russian Federation
| | - Roman V. Rumyantcev
- G. A. Razuvaev Institute of Organometallic Chemistry Russian Academy of Sciences 603950 Nizhnii Novgorod Russian Federation
| | - Grigory Yu. Zhigulin
- G. A. Razuvaev Institute of Organometallic Chemistry Russian Academy of Sciences 603950 Nizhnii Novgorod Russian Federation
| | - Sergey Yu. Ketkov
- G. A. Razuvaev Institute of Organometallic Chemistry Russian Academy of Sciences 603950 Nizhnii Novgorod Russian Federation
| | - Konstantin A. Lyssenko
- A. N. Nesmeyanov Institute of Organoelement Compounds Russian Academy of Sciences 119334 Moscow Russian Federation
| | - Irina G. Fomina
- N. S. Kurnakov Institute of General and Inorganic Chemistry Russian Academy of Sciences 119991 Moscow Russian Federation
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24
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Doherty W, Dürr EM, Baddock HT, Lee SY, McHugh PJ, Brown T, Senge MO, Scanlan EM, McGouran JF. A hydroxamic-acid-containing nucleoside inhibits DNA repair nuclease SNM1A. Org Biomol Chem 2019; 17:8094-8105. [PMID: 31380542 PMCID: PMC6984127 DOI: 10.1039/c9ob01133a] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2019] [Accepted: 06/12/2019] [Indexed: 12/29/2022]
Abstract
Nine modified nucleosides, incorporating zinc-binding pharmacophores, have been synthesised and evaluated as inhibitors of the DNA repair nuclease SNM1A. The series included oxyamides, hydroxamic acids, hydroxamates, a hydrazide, a squarate ester and a squaramide. A hydroxamic acid-derived nucleoside inhibited the enzyme, offering a novel approach for potential therapeutic development through the use of rationally designed nucleoside derived inhibitors.
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Affiliation(s)
- William Doherty
- School of Chemistry and Trinity Biomedical Sciences Institute, Trinity College Dublin, 152-160 Pearse St, Dublin 2, Ireland.
| | - Eva-Maria Dürr
- School of Chemistry and Trinity Biomedical Sciences Institute, Trinity College Dublin, 152-160 Pearse St, Dublin 2, Ireland.
| | - Hannah T Baddock
- Department of Oncology, MRC Weatherall Institute of Molecular Medicine, University of Oxford, John Radcliffe Hospital, Oxford OX3 9DS, UK
| | - Sook Y Lee
- Department of Oncology, MRC Weatherall Institute of Molecular Medicine, University of Oxford, John Radcliffe Hospital, Oxford OX3 9DS, UK and Department of Chemistry, University of Oxford, 12 Mansfield Road, Oxford OX1 3TA, UK
| | - Peter J McHugh
- Department of Oncology, MRC Weatherall Institute of Molecular Medicine, University of Oxford, John Radcliffe Hospital, Oxford OX3 9DS, UK
| | - Tom Brown
- Department of Chemistry, University of Oxford, 12 Mansfield Road, Oxford OX1 3TA, UK
| | - Mathias O Senge
- Molecular Medicine, Trinity Translational Medicine Institute, Trinity Centre for Health Sciences, Trinity College Dublin, The University of Dublin, St James's Hospital, Dublin 8, Ireland
| | - Eoin M Scanlan
- School of Chemistry and Trinity Biomedical Sciences Institute, Trinity College Dublin, 152-160 Pearse St, Dublin 2, Ireland.
| | - Joanna F McGouran
- School of Chemistry and Trinity Biomedical Sciences Institute, Trinity College Dublin, 152-160 Pearse St, Dublin 2, Ireland.
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25
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Johann T, Keth J, Bros M, Frey H. A general concept for the introduction of hydroxamic acids into polymers. Chem Sci 2019; 10:7009-7022. [PMID: 31588268 PMCID: PMC6676332 DOI: 10.1039/c9sc02557j] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2019] [Accepted: 06/04/2019] [Indexed: 12/28/2022] Open
Abstract
Polyethers (PEG) with hydroxamic acid groups enable chelation of a variety of metal ions, coating of metal oxide surfaces and stabilization of nanoparticles. In contrast to catechol, hydroxamic acids are oxidation stable and biocompatible.
Hydroxamic acids (HA) form stable complexes with a large variety of metal-ions, affording hydroxamates with high complexation constants. Hydroxamic acid moieties play a crucial role in the natural iron metabolism. In this work, 1,4,2-dioxazoles linked to a hydroxyl group are introduced as key compounds for the installation of hydroxamic acids at synthetic polymers in well-defined positions. A general synthetic scheme is developed that gives access to a series of novel functional key building blocks that can be universally used to obtain hydroxamic acid-based monomers and polymers, for instance as protected HA-functional initiators or for the synthesis of a variety of novel HA-based monomers, such as epoxides or methacrylates. To demonstrate the excellent stability of the dioxazole-protected hydroxamic acids, direct incorporation of the dioxazole-protected hydroxamic acids into polyethers is demonstrated via oxyanionic polymerization. Convenient subsequent deprotection is feasible under mild acidic conditions. α-Functional HA-polyethers, i.e. poly ethylene glycol, polypropylene glycol and polyglycerol based on ethylene oxide, propylene oxide and ethoxy ethyl glycidyl ether, respectively are prepared with low dispersities (<1.2) in the molecular weight range of 1000 to 8500 g mol–1. Water-soluble hydroxamic acid functional poly(ethylene glycol) (HA-PEG) is explored for a variety of biomedical applications and surface coating. Complexation of Fe(iii) ions, coating of various metal surfaces, enabling e.g., solubilization of FeOx nanoparticles by HA-PEGs, are presented. No impact of the polyether chain on the chelation properties was observed, while significantly lower anti-proliferative effects were observed than for deferoxamine. HA-PEGs show the same complexation behavior as their low molecular weight counterparts. Hydroxamic acid functional polymers are proposed as an oxidatively stable alternative to the highly established catechol-based systems.
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Affiliation(s)
- Tobias Johann
- Institute of Organic Chemistry , Johannes Gutenberg University , Duesbergweg 10-14 , 55128 Mainz , Germany .
| | - Jennifer Keth
- Institute of Organic Chemistry , Johannes Gutenberg University , Duesbergweg 10-14 , 55128 Mainz , Germany .
| | - Matthias Bros
- Department of Dermatology , University Medical Center of the Johannes Gutenberg University Mainz , Langenbeckstrasse 1 , 55131 Mainz , Germany
| | - Holger Frey
- Institute of Organic Chemistry , Johannes Gutenberg University , Duesbergweg 10-14 , 55128 Mainz , Germany .
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26
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Lisboa Gonçalves B, Oliveira Monteiro S, Cargnelutti R, Rosa de Menezes Vicenti J. trans-Bis(dimethyl sulfoxide-κ O)bis(3-nitrobenzohydroxamato-κ 2
O, O′)zinc(II). IUCRDATA 2019. [DOI: 10.1107/s2414314619010058] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
Single crystals of the title complex, [Zn(C7H5N2O4)2(C2H6OS)2] or [Zn(NBZH)2(DMSO)2], were isolated from a dimethyl sulfoxide (DMSO) solution containing [Zn(NBZH)2]·2H2O (NBZH = 3-nitrobenzohydroxamate anion). The asymmetric unit comprises of one O,O′-chelating NBZH anion, one O-bound DMSO ligand and one zinc(II) cation localized on an inversion centre. The three-dimensional crystal packing includes N—H...O and C—H...O hydrogen bonding, as well as O...H and H...H contacts identified by Hirshfeld isosurface analysis.
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27
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Fugu MB, Ellaby RJ, O'Connor HM, Pitak MB, Klooster W, Horton PN, Coles SJ, Al-Mashhadani MH, Perepichka IF, Brechin EK, Jones LF. Mono- and ditopic hydroxamate ligands towards discrete and extended network architectures. Dalton Trans 2019; 48:10180-10190. [PMID: 31187830 DOI: 10.1039/c9dt01531k] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A family of mono- and ditopic hydroxamic acids has been employed in the synthesis and structural and physical characterisation of discrete (0D) and (1- and 2-D) extended network coordination complexes. Examples of the latter include the 1-D coordination polymer {[Zn(ii)(L3H)2]·2MeOH}n (5; L3H2 = 2-(methylamino)phenylhydroxamic acid) and the 2-D extended network {[Cu(ii)(L2H)(H2O)(NO3)]·H2O}n (5; L2H2 = 4-amino-2-(acetoxy)phenylhydroxamic acid). The 12-MC-4 metallacrown [Cu(ii)5(L4H)4(MeOH)2(NO3)2]·3H2O·4MeOH (7) represents the first metal complex constructed using the novel ligand N-hydroxy-2-[(2-hydroxy-3-methoxybenzyl)amino]benzamide (L4H3). Variable temperature magnetic susceptibility studies confirm strong antiferromagnetic exchange between the Cu(ii) centres in 7. Coordination polymer 5 shows photoluminescence in the blue region (λPL∼ 421-450 nm) with a bathochromic shift of the emission (∼15-30 nm) from solution to the solid state.
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Affiliation(s)
- Mohammed B Fugu
- School of Natural Sciences, Bangor University, Bangor, Wales LL57 2DG, UK.
| | - Rebecca J Ellaby
- School of Natural Sciences, Bangor University, Bangor, Wales LL57 2DG, UK.
| | - Helen M O'Connor
- EaStCHEM School of Chemistry, David Brewster Road, University of Edinburgh, Edinburgh, Scotland EH9 3FJ, UK
| | - Mateusz B Pitak
- UK National Crystallographic Service, Chemistry, Faculty of Natural and Environmental Sciences, University of Southampton, England, SO17 1BJ, UK
| | - Wim Klooster
- UK National Crystallographic Service, Chemistry, Faculty of Natural and Environmental Sciences, University of Southampton, England, SO17 1BJ, UK
| | - Peter N Horton
- UK National Crystallographic Service, Chemistry, Faculty of Natural and Environmental Sciences, University of Southampton, England, SO17 1BJ, UK
| | - Simon J Coles
- UK National Crystallographic Service, Chemistry, Faculty of Natural and Environmental Sciences, University of Southampton, England, SO17 1BJ, UK
| | - Mohammed H Al-Mashhadani
- School of Natural Sciences, Bangor University, Bangor, Wales LL57 2DG, UK. and Chemistry Department, College of Science, Al-Nahrain University, Baghdad, Iraq
| | - Igor F Perepichka
- Shaanxi Institute of Flexible Electronics, Northwestern Polytechnical University, 127 West Youyi Road, Xi'an 710072, Shaanxi, China
| | - Euan K Brechin
- EaStCHEM School of Chemistry, David Brewster Road, University of Edinburgh, Edinburgh, Scotland EH9 3FJ, UK
| | - Leigh F Jones
- School of Natural Sciences, Bangor University, Bangor, Wales LL57 2DG, UK.
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28
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Padial NM, Castells-Gil J, Almora-Barrios N, Romero-Angel M, da Silva I, Barawi M, García-Sánchez A, de la Peña O’Shea VA, Martí-Gastaldo C. Hydroxamate Titanium–Organic Frameworks and the Effect of Siderophore-Type Linkers over Their Photocatalytic Activity. J Am Chem Soc 2019; 141:13124-13133. [DOI: 10.1021/jacs.9b04915] [Citation(s) in RCA: 39] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- Natalia M. Padial
- Universidad de Valencia (ICMol), Catedrático José Beltrán-2, 46980 Paterna, Spain
| | - Javier Castells-Gil
- Universidad de Valencia (ICMol), Catedrático José Beltrán-2, 46980 Paterna, Spain
| | | | - María Romero-Angel
- Universidad de Valencia (ICMol), Catedrático José Beltrán-2, 46980 Paterna, Spain
| | - Iván da Silva
- ISIS Facility, Rutherford Appleton Laboratory, Chilton, Didcot, Oxfordshire, OX11 0QX, United Kingdom
| | - Mariam Barawi
- IMDEA Energy Institute, Parque Tecnológico de
Móstoles, Avenida Ramón de la Sagra, 3, 28935 Móstoles, Madrid, Spain
| | - Alba García-Sánchez
- IMDEA Energy Institute, Parque Tecnológico de
Móstoles, Avenida Ramón de la Sagra, 3, 28935 Móstoles, Madrid, Spain
| | - Víctor A. de la Peña O’Shea
- IMDEA Energy Institute, Parque Tecnológico de
Móstoles, Avenida Ramón de la Sagra, 3, 28935 Móstoles, Madrid, Spain
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29
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Katkova MA, Zabrodina GS, Zhigulin GY, Baranov EV, Trigub MM, Terentiev AA, Ketkov SY. The first water-soluble polynuclear metallamacrocyclic Sr(ii)-Cu(ii) complex based on simple glycinehydroximate ligands. Dalton Trans 2019; 48:10479-10487. [PMID: 31210191 DOI: 10.1039/c9dt01368g] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
Recently, aminohydroximate ligands have found wide applications in the fascinating class of polynuclear metallamacrocyclic compounds named 15-MC-5 metallacrowns. The enhanced interest in water-soluble aminohydroximate Ln(iii)-Cu(ii) complexes is largely due to their rich coordination chemistry, diverse properties and ease of synthesis. We examined glycinehydroxamic acid as a simple ligand for the preparation of the first water-soluble polynuclear metallamacrocyclic Sr(ii)-Cu(ii) compound. The complex Sr(H2O)3[15-MCCuGlyha-5](Cl)2 was synthesized and characterized structurally and spectroscopically. The single-crystal structure reveals the classic metallamacrocyclic 15-MC-5 configuration. The Sr(ii) ion is located at the center of the 15-MCCu(II)Glyha-5 ring and coordinated by five oxygen atoms of the cycle in the equatorial plane and an additional three oxygen atoms of the water molecules at apical positions. Detailed DFT and QT AIM studies were carried out for the hydrated isoelectronic Sr[15-MCCuGlyha-5]2+ and Y[15-MCCuGlyha-5]3+ systems. The ionic contribution to the metal-ligand interactions appears to be higher for the Sr(ii) derivative despite the smaller charge separation. DFT calculations suggest a thermodynamically favorable substitution of the Sr(ii) central ion with Y(iii). Indeed, it was shown experimentally that the strontium ion can be easily replaced by yttrium. Preliminary cytotoxic studies revealed the low toxicity of the strontium complex and its yttrium analogue, so the water-soluble Sr(ii) and Y(iii) metallacrowns can be further investigated as possible platforms for the development of new 90Sr and 90Y radiotherapy drugs.
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Affiliation(s)
- Marina A Katkova
- G.A. Razuvaev Institute of Organometallic Chemistry RAS, 49 Tropinina St., 603950 Nizhny Novgorod, Russian Federation.
| | - Galina S Zabrodina
- G.A. Razuvaev Institute of Organometallic Chemistry RAS, 49 Tropinina St., 603950 Nizhny Novgorod, Russian Federation.
| | - Grigory Yu Zhigulin
- G.A. Razuvaev Institute of Organometallic Chemistry RAS, 49 Tropinina St., 603950 Nizhny Novgorod, Russian Federation.
| | - Evgeny V Baranov
- G.A. Razuvaev Institute of Organometallic Chemistry RAS, 49 Tropinina St., 603950 Nizhny Novgorod, Russian Federation.
| | - Maria M Trigub
- Institute of Problems of Chemical Physics RAS, 142432 Chernogolovka, Russian Federation
| | - Alexey A Terentiev
- Institute of Problems of Chemical Physics RAS, 142432 Chernogolovka, Russian Federation
| | - Sergey Yu Ketkov
- G.A. Razuvaev Institute of Organometallic Chemistry RAS, 49 Tropinina St., 603950 Nizhny Novgorod, Russian Federation.
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30
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Kumari S, Sharma N. Nitrosubstituted hydroxamate ligands in new triphenyltin(IV) complexes as prospective antimicrobial agents. J COORD CHEM 2019. [DOI: 10.1080/00958972.2019.1573993] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Affiliation(s)
- Shilpa Kumari
- Department of Chemistry, Himachal Pradesh University, Shimla, India
| | - Neeraj Sharma
- Department of Chemistry, Himachal Pradesh University, Shimla, India
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31
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Analogues of desferrioxamine B (DFOB) with new properties and new functions generated using precursor-directed biosynthesis. Biometals 2019; 32:395-408. [PMID: 30701380 DOI: 10.1007/s10534-019-00175-7] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2019] [Accepted: 01/21/2019] [Indexed: 10/27/2022]
Abstract
Desferrioxamine B (DFOB) is a siderophore native to Streptomyces pilosus biosynthesised by the DesABCD enzyme cluster as a high affinity Fe(III) chelator. Although DFOB has a long clinical history for the treatment of chronic iron overload, limitations encourage the development of new analogues. This review describes a recent body of work that has used precursor-directed biosynthesis (PDB) to access new DFOB analogues. PDB exploits the native biosynthetic machinery of a producing organism in culture medium augmented with non-native substrates that compete against native substrates during metabolite assembly. The method allows access to analogues of natural products using benign methods, compared to multistep organic synthesis. The disadvantages of PDB are the production of metabolites in low yield and the need to purify complex mixtures. Streptomyces pilosus medium was supplemented with different types of non-native diamine substrates to compete against native 1,5-diaminopentane to generate DFOB analogues containing alkene bonds, fluorine atoms, ether or thioether functional groups, or a disulfide bond. All analogues retained function as Fe(III) chelators and have properties that could broaden the utility of DFOB. These PDB studies have also added knowledge to the understanding of DFOB biosynthesis.
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32
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Ozsváth A, Farkas E, Diószegi R, Buglyó P. Versatility and trends in the interaction between Pd(ii) and peptide hydroxamic acids. NEW J CHEM 2019. [DOI: 10.1039/c9nj00296k] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The interaction between di- and tripeptide hydroxamic acids and Pd(ii) (as a Pt(ii) model but with faster ligand exchange reactions) was studied in aqueous solution in the presence of chloride ions by pH-potentiometric and NMR methods revealing ligand-dependent competition between the coordinative and hydrolytic processes.
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Affiliation(s)
- András Ozsváth
- Department of Inorganic and Analytical Chemistry
- University of Debrecen
- H-4032 Debrecen, Egyetem tér 1
- Hungary
| | - Etelka Farkas
- Department of Inorganic and Analytical Chemistry
- University of Debrecen
- H-4032 Debrecen, Egyetem tér 1
- Hungary
| | - Róbert Diószegi
- Department of Inorganic and Analytical Chemistry
- University of Debrecen
- H-4032 Debrecen, Egyetem tér 1
- Hungary
| | - Péter Buglyó
- Department of Inorganic and Analytical Chemistry
- University of Debrecen
- H-4032 Debrecen, Egyetem tér 1
- Hungary
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33
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McGivern TJP, Slator C, Kellett A, Marmion CJ. Innovative DNA-Targeted Metallo-prodrug Strategy Combining Histone Deacetylase Inhibition with Oxidative Stress. Mol Pharm 2018; 15:5058-5071. [PMID: 30192548 DOI: 10.1021/acs.molpharmaceut.8b00652] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
Cancer remains a global health challenge. There is an urgent need to develop innovative therapeutics that can overcome the shortcomings of existing cancer therapies. DNA enzymes involved in nucleic acid compaction and organization are an attractive cancer drug target for therapeutic exploitation. In this work, a family of Cu(II) prodrugs containing suberoylanilide hydroxamic acid (SAHA), a well-established histone deacetylase inhibitor (HDACi) and clinically approved cancer drug, and phenanthrene ligands as DNA intercalative components have been rationally developed. The complexes, of general formula [Cu(SAHA-1H)( N, N'-phenanthrene)]+, exhibit excellent DNA recognition with binding affinity of lead agents in the order of ∼107 M(bp)-1. Biophysical studies involving nucleic acid polymers indicate intercalative binding at both adenine-thymine (A-T) and guanine-cytosine (G-C) rich sequences but thermodynamically stable interactions are favored in G-C tracts. The complexes mediate DNA damage by producing reactive oxygen species (ROS) with spin trapping experiments showing that superoxide, the hydroxyl radical, and hydrogen peroxide play critical roles in strand scission. The agents were found to have promising antiproliferative effects against a panel of epithelial cancers, and in two representative cell lines possessing mutated p53 (SK-OV-3 and DU145), enhanced cytotoxicity was observed. Significantly, mechanistic experiments with the most promising candidates revealed HDAC inhibition activity was achieved over a shorter time frame as compared to clinical standards with DNA damage-response markers identifying upregulation of both DNA synthesis and nucleotide excision repair (NER) pathways. Finally, confocal imaging and gene expression analysis show this metallodrug class exerts cytotoxic activity predominantly through an apoptotic pathway.
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Affiliation(s)
- Tadhg J P McGivern
- Centre for Synthesis and Chemical Biology, Department of Chemistry , Royal College of Surgeons in Ireland , 123 St. Stephen's Green , Dublin 2 , Ireland.,School of Chemical Sciences and National Institute for Cellular Biotechnology , Dublin City University , Glasnevin, Dublin 9 , Ireland
| | - Creina Slator
- School of Chemical Sciences and National Institute for Cellular Biotechnology , Dublin City University , Glasnevin, Dublin 9 , Ireland
| | - Andrew Kellett
- School of Chemical Sciences and National Institute for Cellular Biotechnology , Dublin City University , Glasnevin, Dublin 9 , Ireland
| | - Celine J Marmion
- Centre for Synthesis and Chemical Biology, Department of Chemistry , Royal College of Surgeons in Ireland , 123 St. Stephen's Green , Dublin 2 , Ireland
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34
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Zhigulin GY, Zabrodina GS, Katkova MA, Ketkov SY. Quantum chemical study of formation of CuII–YIII metallamacrocyclic complexes based on glycinehydroximate ligands. Russ Chem Bull 2018. [DOI: 10.1007/s11172-018-2198-0] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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35
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Nikolaou A, Ninou I, Kokotou MG, Kaffe E, Afantitis A, Aidinis V, Kokotos G. Hydroxamic Acids Constitute a Novel Class of Autotaxin Inhibitors that Exhibit in Vivo Efficacy in a Pulmonary Fibrosis Model. J Med Chem 2018; 61:3697-3711. [PMID: 29620892 DOI: 10.1021/acs.jmedchem.8b00232] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Autotaxin (ATX) catalyzes the hydrolysis of lysophosphatidylcholine (LPC) generating the lipid mediator lysophosphatidic acid (LPA). Both ATX and LPA are involved in various pathological inflammatory conditions, including fibrosis and cancer, and have attracted great interest as medicinal targets over the past decade. Thus, the development of novel potent ATX inhibitors is of great importance. We have developed a novel class of ATX inhibitors containing the zinc binding functionality of hydroxamic acid. Such novel hydroxamic acids that incorporate a non-natural δ-amino acid residue exhibit high in vitro inhibitory potency over ATX (IC50 values 50-60 nM). Inhibitor 32, based on δ-norleucine, was tested for its efficacy in a mouse model of pulmonary inflammation and fibrosis induced by bleomycin and exhibited promising efficacy. The novel hydroxamic ATX inhibitors provide excellent tools for the study of the role of the enzyme and could contribute to the development of novel therapeutic agents for the treatment of fibrosis and other chronic inflammatory diseases.
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Affiliation(s)
- Aikaterini Nikolaou
- Laboratory of Organic Chemistry, Department of Chemistry , National and Kapodistrian University of Athens , Panepistimiopolis , Athens 15771 , Greece
| | - Ioanna Ninou
- Division of Immunology , Biomedical Sciences Research Center "Alexander Fleming" , Athens 16672 , Greece
| | - Maroula G Kokotou
- Laboratory of Organic Chemistry, Department of Chemistry , National and Kapodistrian University of Athens , Panepistimiopolis , Athens 15771 , Greece
| | - Eleanna Kaffe
- Division of Immunology , Biomedical Sciences Research Center "Alexander Fleming" , Athens 16672 , Greece
| | | | - Vassilis Aidinis
- Division of Immunology , Biomedical Sciences Research Center "Alexander Fleming" , Athens 16672 , Greece
| | - George Kokotos
- Laboratory of Organic Chemistry, Department of Chemistry , National and Kapodistrian University of Athens , Panepistimiopolis , Athens 15771 , Greece
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36
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Katkova MA. Water-Soluble Polynuclear Metallamacrocyclic Copper(II) and Lanthanide(III) Complexes Based on Amino Hydroxamic Acids. RUSS J COORD CHEM+ 2018. [DOI: 10.1134/s107032841804005x] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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37
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Liu S, Zhong H, Liu G, Xu Z. Cu(I)/Cu(II) mixed-valence surface complexes of S-[(2-hydroxyamino)-2-oxoethyl]-N,N-dibutyldithiocarbamate: Hydrophobic mechanism to malachite flotation. J Colloid Interface Sci 2018; 512:701-712. [DOI: 10.1016/j.jcis.2017.10.063] [Citation(s) in RCA: 52] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2017] [Revised: 10/16/2017] [Accepted: 10/16/2017] [Indexed: 12/20/2022]
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38
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Codd R, Richardson-Sanchez T, Telfer TJ, Gotsbacher MP. Advances in the Chemical Biology of Desferrioxamine B. ACS Chem Biol 2018; 13:11-25. [PMID: 29182270 DOI: 10.1021/acschembio.7b00851] [Citation(s) in RCA: 47] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
Desferrioxamine B (DFOB) was discovered in the late 1950s as a hydroxamic acid metabolite of the soil bacterium Streptomyces pilosus. The exquisite affinity of DFOB for Fe(III) identified its potential for removing excess iron from patients with transfusion-dependent hemoglobin disorders. Many studies have used semisynthetic chemistry to produce DFOB adducts with new properties and broad-ranging functions. More recent approaches in chemical biology have revealed some nuances of DFOB biosynthesis and discovered new DFOB-derived drugs and radiometal imaging agents. The current and potential applications of DFOB continue to inspire a rich body of chemical biology research focused on this bacterial metabolite.
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Affiliation(s)
- Rachel Codd
- School of Medical Sciences
(Pharmacology), The University of Sydney, Sydney, New South Wales 2006, Australia
| | - Tomas Richardson-Sanchez
- School of Medical Sciences
(Pharmacology), The University of Sydney, Sydney, New South Wales 2006, Australia
| | - Thomas J. Telfer
- School of Medical Sciences
(Pharmacology), The University of Sydney, Sydney, New South Wales 2006, Australia
| | - Michael P. Gotsbacher
- School of Medical Sciences
(Pharmacology), The University of Sydney, Sydney, New South Wales 2006, Australia
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39
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Sałdyka M, Mielke Z. Photochemistry of Acetohydroxamic Acid in Solid Argon. FTIR and Theoretical Studies. J Phys Chem A 2018; 122:60-71. [PMID: 29216431 DOI: 10.1021/acs.jpca.7b09461] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The products formed during exposure of the CH3CONHOH/Ar (AHA/Ar) matrices to the full output of the Xe lamp and to 225 nm OPO radiation are studied. The irradiation promotes the isomerization, 1Z → 1E, and AHA photodissociation reactions. Four pairs of coproducts are experimentally found to appear in the photolysis, they form the complexes: CH3OH···HNCO (1), H2O···CH3NCO (2), H2O···CH3CNO (3) and CO···CH3NHOH (4). The structures of the complexes were optimized at the MP2 computational level with the 6-311++G(2d,2p) and aug-cc-pVTZ basis sets. Three local minima were predicted for the complex (1), two for the complexes (2) and (3) and four local minima were found for the complex (4). The comparison of the theoretical spectra with the experimental ones allowed us to determine the structures of the complexes formed in the matrix. The mechanisms of the reaction channels leading to formation of the four coproducts are proposed. It is concluded that the first step in formation of the (1), (2) and (3) complexes is the scission of the N-O bond whereas the creation of the complex (4) is due to the cleavage of the C-N bond.
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Affiliation(s)
- Magdalena Sałdyka
- Faculty of Chemistry, University of Wrocław , F. Joliot-Curie 14, 50-383 Wrocław, Poland
| | - Zofia Mielke
- Faculty of Chemistry, University of Wrocław , F. Joliot-Curie 14, 50-383 Wrocław, Poland
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40
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Keogan DM, Oliveira SSC, Sangenito LS, Branquinha MH, Jagoo RD, Twamley B, Santos ALS, Griffith DM. Novel antimony(iii) hydroxamic acid complexes as potential anti-leishmanial agents. Dalton Trans 2018; 47:7245-7255. [DOI: 10.1039/c8dt00546j] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
The synthesis, characterisation and anti-leishmanial activity of novel Sb(iii) hydroxamato and Sb(iii) hydroxamato/hydroximato complexes are reported.
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Affiliation(s)
| | - S. S. C. Oliveira
- Department of General Microbiology
- Microbiology Institute Paulo de Góes
- Federal University of Rio de Janeiro (UFRJ)
- Rio de Janeiro
- Brazil
| | - L. S. Sangenito
- Department of General Microbiology
- Microbiology Institute Paulo de Góes
- Federal University of Rio de Janeiro (UFRJ)
- Rio de Janeiro
- Brazil
| | - M. H. Branquinha
- Department of General Microbiology
- Microbiology Institute Paulo de Góes
- Federal University of Rio de Janeiro (UFRJ)
- Rio de Janeiro
- Brazil
| | | | - B. Twamley
- School of Chemistry
- Chemistry Building
- Trinity College Dublin
- Ireland
| | - A. L. S. Santos
- Department of General Microbiology
- Microbiology Institute Paulo de Góes
- Federal University of Rio de Janeiro (UFRJ)
- Rio de Janeiro
- Brazil
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41
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Hermant P, Bosc D, Piveteau C, Gealageas R, Lam B, Ronco C, Roignant M, Tolojanahary H, Jean L, Renard PY, Lemdani M, Bourotte M, Herledan A, Bedart C, Biela A, Leroux F, Deprez B, Deprez-Poulain R. Controlling Plasma Stability of Hydroxamic Acids: A MedChem Toolbox. J Med Chem 2017; 60:9067-9089. [DOI: 10.1021/acs.jmedchem.7b01444] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Paul Hermant
- Univ. Lille Nord
de France, INSERM, Institut Pasteur de Lille, U1177, Drugs and Molecules
for Living Systems, F-59000 Lille, France
| | - Damien Bosc
- Univ. Lille Nord
de France, INSERM, Institut Pasteur de Lille, U1177, Drugs and Molecules
for Living Systems, F-59000 Lille, France
| | - Catherine Piveteau
- Univ. Lille Nord
de France, INSERM, Institut Pasteur de Lille, U1177, Drugs and Molecules
for Living Systems, F-59000 Lille, France
| | - Ronan Gealageas
- Univ. Lille Nord
de France, INSERM, Institut Pasteur de Lille, U1177, Drugs and Molecules
for Living Systems, F-59000 Lille, France
| | - BaoVy Lam
- Univ. Lille Nord
de France, INSERM, Institut Pasteur de Lille, U1177, Drugs and Molecules
for Living Systems, F-59000 Lille, France
| | - Cyril Ronco
- Univ. Lille Nord
de France, INSERM, Institut Pasteur de Lille, U1177, Drugs and Molecules
for Living Systems, F-59000 Lille, France
| | - Matthieu Roignant
- Univ. Lille Nord
de France, INSERM, Institut Pasteur de Lille, U1177, Drugs and Molecules
for Living Systems, F-59000 Lille, France
| | - Hasina Tolojanahary
- Univ. Lille Nord
de France, INSERM, Institut Pasteur de Lille, U1177, Drugs and Molecules
for Living Systems, F-59000 Lille, France
| | - Ludovic Jean
- Normandie Université, COBRA, UMR 6014 & FR 3038, Université de Rouen, INSA Rouen, CNRS, F-76821 Mont-Saint-Aignan Cedex, France
| | - Pierre-Yves Renard
- Normandie Université, COBRA, UMR 6014 & FR 3038, Université de Rouen, INSA Rouen, CNRS, F-76821 Mont-Saint-Aignan Cedex, France
| | - Mohamed Lemdani
- Univ. Lille, EA
2694, Santé Publique: Épidémiologie et Qualité
des Soins, F-59000 Lille, France
| | - Marilyne Bourotte
- Univ. Lille Nord
de France, INSERM, Institut Pasteur de Lille, U1177, Drugs and Molecules
for Living Systems, F-59000 Lille, France
| | - Adrien Herledan
- Univ. Lille Nord
de France, INSERM, Institut Pasteur de Lille, U1177, Drugs and Molecules
for Living Systems, F-59000 Lille, France
| | - Corentin Bedart
- Univ. Lille Nord
de France, INSERM, Institut Pasteur de Lille, U1177, Drugs and Molecules
for Living Systems, F-59000 Lille, France
| | - Alexandre Biela
- Univ. Lille Nord
de France, INSERM, Institut Pasteur de Lille, U1177, Drugs and Molecules
for Living Systems, F-59000 Lille, France
| | - Florence Leroux
- Univ. Lille Nord
de France, INSERM, Institut Pasteur de Lille, U1177, Drugs and Molecules
for Living Systems, F-59000 Lille, France
| | - Benoit Deprez
- Univ. Lille Nord
de France, INSERM, Institut Pasteur de Lille, U1177, Drugs and Molecules
for Living Systems, F-59000 Lille, France
| | - Rebecca Deprez-Poulain
- Univ. Lille Nord
de France, INSERM, Institut Pasteur de Lille, U1177, Drugs and Molecules
for Living Systems, F-59000 Lille, France
- Institut Universitaire de France, F-75231, Paris, France
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42
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Synthesis of polymeric bismuth chlorido hydroxamato complexes; X-ray crystal structure and antibacterial activity of a novel Bi(III) salicylhydroxamato complex. Inorganica Chim Acta 2017. [DOI: 10.1016/j.ica.2016.09.021] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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43
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Richardson-Sanchez T, Tieu W, Codd R. Reverse Biosynthesis: Generating Combinatorial Pools of Drug Leads from Enzyme-Mediated Fragmentation of Natural Products. Chembiochem 2017; 18:368-373. [DOI: 10.1002/cbic.201600636] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2016] [Indexed: 11/06/2022]
Affiliation(s)
- Tomas Richardson-Sanchez
- School of Medical Sciences (Pharmacology); The University of Sydney; Camperdown NSW 2006 Australia
| | - William Tieu
- School of Medical Sciences (Pharmacology); The University of Sydney; Camperdown NSW 2006 Australia
| | - Rachel Codd
- School of Medical Sciences (Pharmacology); The University of Sydney; Camperdown NSW 2006 Australia
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44
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Athira C, Sunoj RB. Role of Lewis acid additives in a palladium catalyzed directed C-H functionalization reaction of benzohydroxamic acid to isoxazolone. Org Biomol Chem 2016; 15:246-255. [PMID: 27901171 DOI: 10.1039/c6ob02318e] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Metallic salts as well as protic additives are widely employed in transition metal catalyzed C-H bond functionalization reactions to improve the efficiency of catalytic protocols. In one such example, ZnCl2 and pivalic acid are used as additives in a palladium catalyzed synthesis of isoxazolone from a readily available benzohydroxamic acid under one pot conditions. In this article, we present some important mechanistic insights into the role of ZnCl2 and pivalic acid, gained by using density functional theory (M06) computations. Two interesting modes of action of ZnCl2 are identified in various catalytic steps involved in the formation of isoxazolone. The conventional Lewis acid coordination wherein zinc chloride (ZnCl2·(DMA)) binds to the carbonyl group is found to be more favored in the C-H activation step. However, the participation of a hetero-bimetallic Pd-Zn species is preferred in reductive elimination leading to Caryl-N bond formation. Pivalic acid helps in relay proton transfer in C-H bond activation through a cyclometallation deprotonation (CMD) process. The explicit inclusion of ZnCl2 and solvent N,N-dimethyl acetamide (DMA) stabilizes the transition state and also helps reduce the activation barrier for the C-H bond activation step. The electronic communication between the two metal species is playing a crucial role in stabilizing the Caryl-N bond formation transition state through a Pd-Zn hetero-bimetallic interaction.
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Affiliation(s)
- C Athira
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai 400076, India.
| | - Raghavan B Sunoj
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai 400076, India.
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45
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Soe CZ, Telfer TJ, Levina A, Lay PA, Codd R. Simultaneous biosynthesis of putrebactin, avaroferrin and bisucaberin by Shewanella putrefaciens and characterisation of complexes with iron(III), molybdenum(VI) or chromium(V). J Inorg Biochem 2016; 162:207-215. [DOI: 10.1016/j.jinorgbio.2015.12.008] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2015] [Revised: 11/06/2015] [Accepted: 12/14/2015] [Indexed: 12/19/2022]
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46
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Grela E, Dziełak A, Szydłowska K, Mucha A, Kafarski P, Grabowiecka AM. Whole-cell Proteus mirabilis urease inhibition by aminophosphinates for the control of struvite formation. J Med Microbiol 2016; 65:1123-1129. [PMID: 27550502 DOI: 10.1099/jmm.0.000342] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023] Open
Abstract
The study evaluated the in vitro impact of a series of aminophosphinic urease inhibitors on Proteusmirabilis. The group of compounds comprised structurally diverse analogues of diamidophosphate built on an N-C-P scaffold. The influence of urease inhibition on urea-splitting activity was assessed by whole-cell pH-static kinetic measurements. The potential to prevent struvite formation was determined by monitoring changes in pH and ionic composition of artificial urine medium during P. mirabilis growth. The most active compounds exhibited stronger positive effect on urine stability than the acknowledged inhibitor acetohydroxamic acid. The high anti-ureolytic and pH-stabilizing effect of urease inhibitors 4 and 14 was well correlated with their reported kinetic properties against pure urease from P. mirabilis (Ki values of 0.62±0.09 and 0.202±0.057 µM, respectively, compared to 5.7±0.4 µM for acetohydroxamic acid). The effect of repressed ureolysis upon the viability of Proteus cells was studied using MTT [3-(4,5-dimethyl-2-thiazolyl)-2,5-diphenyl-2H-tetrazolium bromide] metabolic efficiency assay and LIVE/DEAD fluorescent staining. Most of the compounds caused whole-cell dehydrogenase activity loss; four structures (1, 2, 4 and 14) reduced the culture viability by nearly 70 % at 1 mM concentration. Results of dual fluorescent staining suggested that besides urea-splitting prevention, the structures additionally exerted an outer-membrane-destabilizing effect.
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Affiliation(s)
- Ewa Grela
- Department of Bioorganic Chemistry, Faculty of Chemistry, Wrocław University of Technology, Wrocław, Poland
| | - Anna Dziełak
- Department of Bioorganic Chemistry, Faculty of Chemistry, Wrocław University of Technology, Wrocław, Poland
| | - Katarzyna Szydłowska
- Department of Bioorganic Chemistry, Faculty of Chemistry, Wrocław University of Technology, Wrocław, Poland
| | - Artur Mucha
- Department of Bioorganic Chemistry, Faculty of Chemistry, Wrocław University of Technology, Wrocław, Poland
| | - Paweł Kafarski
- Department of Bioorganic Chemistry, Faculty of Chemistry, Wrocław University of Technology, Wrocław, Poland
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47
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Sun Cao P, Sommer RD, Grice KA. Structural comparison of suberanilohydroxamic acid (SAHA) and other zinc-enzyme inhibitors bound to a monomeric zinc species. Polyhedron 2016. [DOI: 10.1016/j.poly.2016.01.029] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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48
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Khan RA, de Almeida A, Al-Farhan K, Alsalme A, Casini A, Ghazzali M, Reedijk J. Transition-metal norharmane compounds as possible cytotoxic agents: New insights based on a coordination chemistry perspective. J Inorg Biochem 2016; 165:128-135. [PMID: 27453532 DOI: 10.1016/j.jinorgbio.2016.07.001] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/29/2016] [Revised: 06/25/2016] [Accepted: 07/07/2016] [Indexed: 11/16/2022]
Abstract
New first-row transition-metal compounds with the ligand norharmane (9H-Pyrido[3,4-b]indole; Hnor) are reported. The compounds have the general formula [M(LL)(Hnor)(NO3)2](MeOH)0-1 (M=Co, Ni, Cu, Zn; LL=2,2'-bipyridyl (bpy), 1,10-phenanthroline (phen)) and have been characterized by physical and analytical methods. X-ray structural analysis revealed that the compound of formula [Cu(phen)(Hnor)(NO3)2], (1) has a distorted 6-coordinated octahedrally-based geometry, with a planar-based [CuN3O] core, where Cu-L varies between 1.99 and 2.04Å and two weak axial CuO contacts (2.209 and 2.644Å) from two different nitrates. Based on spectroscopic similarities, the other compounds appear to have the same or very similar coordination geometries. The compounds showed clear cell growth inhibitory effects in two different cancer cell lines in vitro, with the copper and zinc complexes being the most toxic and in fact almost comparable to cisplatin. Flow-cytometry analysis confirmed induction of apoptosis in cancer cells treated with the compounds. Interestingly, co-incubation of the cells with metal complexes and CuCl2 induced an increase in the cytotoxic effects, most likely due to the conversion of the metal compounds in the corresponding, and most active, copper analogues.
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Affiliation(s)
- Rais Ahmad Khan
- Department of Chemistry, College of Science, King Saud University, P.O. Box 2455, Riyadh 11451, Saudi Arabia
| | - Andreia de Almeida
- Department of Pharmacokinetics, Toxicology and Targeting, Research Institute of Pharmacy, University of Groningen, Antonius Deusinglaan 1, 9713 AV Groningen, The Netherlands
| | - Khalid Al-Farhan
- Department of Chemistry, College of Science, King Saud University, P.O. Box 2455, Riyadh 11451, Saudi Arabia
| | - Ali Alsalme
- Department of Chemistry, College of Science, King Saud University, P.O. Box 2455, Riyadh 11451, Saudi Arabia
| | - Angela Casini
- Department of Chemistry, College of Science, King Saud University, P.O. Box 2455, Riyadh 11451, Saudi Arabia; Cardiff School of Chemistry, Cardiff University, Main Building, Park place, Cardiff CF10 3A, United Kingdom.
| | - Mohamed Ghazzali
- Department of Chemistry, College of Science, King Saud University, P.O. Box 2455, Riyadh 11451, Saudi Arabia
| | - Jan Reedijk
- Department of Chemistry, College of Science, King Saud University, P.O. Box 2455, Riyadh 11451, Saudi Arabia; Leiden Institute of Chemistry, Leiden University, P.O. Box 9502, 2300 RA Leiden, The Netherlands.
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49
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Graças JP, Ruiz-Romero R, Figueiredo LD, Mattiello L, Peres LEP, Vitorello VA. Root growth restraint can be an acclimatory response to low pH and is associated with reduced cell mortality: a possible role of class III peroxidases and NADPH oxidases. PLANT BIOLOGY (STUTTGART, GERMANY) 2016; 18:658-68. [PMID: 26891589 DOI: 10.1111/plb.12443] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/25/2015] [Accepted: 02/15/2016] [Indexed: 05/15/2023]
Abstract
Low pH (<5.0) can significantly decrease root growth but whether this is a direct effect of H(+) or an active plant response is examined here. Tomato (Solanum lycopersicum cv Micro-Tom) roots were exposed directly or gradually to low pH through step-wise changes in pH over periods ranging from 4 to 24 h. Roots exposed gradually to pH 4.5 grew even less than those exposed directly, indicating a plant-coordinated response. Direct exposure to pH 4.0 suppressed root growth and caused high cell mortality, in contrast to roots exposed gradually, in which growth remained inhibited but cell viability was maintained. Total class III peroxidase activity increased significantly in all low pH treatments, but was not correlated with the observed differential responses. Use of the enzyme inhibitors salicylhydroxamic acid (SHAM) or diphenyleneiodonium chloride (DPI) suggest that peroxidase and, to a lesser extent, NADPH oxidase were required to prevent or reduce injury in all low pH treatments. However, a role for other enzymes, such as the alternative oxidase is also possible. The results with SHAM, but not DPI, were confirmed in tobacco BY-2 cells. Our results indicate that root growth inhibition from low pH can be part of an active plant response, and suggest that peroxidases may have a critical early role in reducing loss of cell viability and in the observed root growth constraint.
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Affiliation(s)
- J P Graças
- Escola Superior de Agricultura 'Luiz de Queiroz', University of São Paulo, Piracicaba, Brazil
| | - R Ruiz-Romero
- Centro de Energia Nuclear na Agricultura, University of São Paulo, Piracicaba, Brazil
| | - L D Figueiredo
- Escola Superior de Agricultura 'Luiz de Queiroz', University of São Paulo, Piracicaba, Brazil
| | - L Mattiello
- Escola Superior de Agricultura 'Luiz de Queiroz', University of São Paulo, Piracicaba, Brazil
| | - L E P Peres
- Escola Superior de Agricultura 'Luiz de Queiroz', University of São Paulo, Piracicaba, Brazil
| | - V A Vitorello
- Centro de Energia Nuclear na Agricultura, University of São Paulo, Piracicaba, Brazil
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50
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Baral M, Gupta A, Kanungo BK. Development of a C₃-symmetric benzohydroxamate tripod: Trimetallic complexation with Fe(III), Cr(III) and Al(III). SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2016; 162:6-15. [PMID: 26970809 DOI: 10.1016/j.saa.2016.02.033] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/14/2015] [Revised: 01/26/2016] [Accepted: 02/28/2016] [Indexed: 06/05/2023]
Abstract
The design, synthesis and physicochemical characterization of a C3-symmetry Benzene-1,3,5-tricarbonylhydroxamate tripod, noted here as BTHA, are described. The chelator was built from a benzene as an anchor, symmetrically extended by three hydroxamate as ligating moieties, each bearing O, O donor sites. A combination of absorption spectrophotometry, potentiometry and theoretical investigations are used to explore the complexation behavior of the ligand with some trivalent metal ions: Fe(III), Cr(III), and Al(III). Three protonation constants were calculated for the ligand in a pH range of 2-11 in a highly aqueous medium (9:1 H2O: DMSO). A high rigidity in the molecular structure restricts the formation of 1:1 (M/L) metal encapsulation but shows a high binding efficiency for a 3:1 metal ligand stoichiometry giving formation constant (in β unit) 28.73, 26.13 and 19.69 for [M3L]; M=Fe(III), Al(III) and Cr(III) respectively, and may be considered as an efficient Fe-carrier. The spectrophotometric study reveals of interesting electronic transitions occurred during the complexation. BTHA exhibits a peak at 238 nm in acidic pH and with the increase of pH, a new peak appeared at 270 nm. A substantial shifting in both of the peaks in presence of the metal ions implicates a s coordination between ligand and metal ions. Moreover, complexation of BTHA with iron shows three distinct colors, violet, reddish orange and yellow in different pH, enables the ligand to be considered for the use as colorimetric sensor.
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Affiliation(s)
- Minati Baral
- Department of Chemistry, National Institute of Engineering and Technology Kurukshetra, Haryana 136119, India.
| | - Amit Gupta
- Department of Chemistry, National Institute of Engineering and Technology Kurukshetra, Haryana 136119, India
| | - B K Kanungo
- Department of Chemistry, Sant Longowal Institute of Engineering and Technology, Longowal, Punjab 148106, India
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