1
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Liu J, Li D, Zhai N, Yuan Long E, Zhou M. Raman spectroscopy study on terephthalamide crystal at high pressures. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2024; 319:124525. [PMID: 38823239 DOI: 10.1016/j.saa.2024.124525] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/27/2024] [Revised: 05/17/2024] [Accepted: 05/23/2024] [Indexed: 06/03/2024]
Abstract
In this study, we have investigated the structural stability of terephthalamide (TPA) crystal at pressure from ambient to 15 GPa in the diamond anvil cell at room temperature by Raman spectroscopy. Assignment for the Raman vibration modes of TPA crystal at ambient conditions has been performed based on the density functional theory (DFT) calculations. Pressure-induced structural transition was monitored using in-situ Raman spectroscopy. Remarkable changes (including the appearance of new Raman peaks, disappearance of original Raman bands, discontinuous changes in the pressure dependence of some Raman wavenumbers at different pressures) in Raman spectra were observed at approximately 1.3 and 5.2 GPa, provided clear evidences for two pressure-induced phase transitions: phase I to phase II at ∼1.3 GPa, phase II to phase III at ∼5.2 GPa.
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Affiliation(s)
- JiaRui Liu
- Key Laboratory of Functional Materials Physics and Chemistry of the Ministry of Education, Jilin Normal University, Changchun 130103, Jilin Province, People's Republic of China
| | - DongFei Li
- Key Laboratory of Functional Materials Physics and Chemistry of the Ministry of Education, Jilin Normal University, Changchun 130103, Jilin Province, People's Republic of China; College of Physics, Changchun Normal University, Changchun 130032, Jilin Province, People's Republic of China.
| | - NaiCui Zhai
- Institute of Translational Medicine, the First Hospital, Jilin University, Changchun 130061, Jilin Province, People's Republic of China
| | - E Yuan Long
- Key Laboratory of Functional Materials Physics and Chemistry of the Ministry of Education, Jilin Normal University, Changchun 130103, Jilin Province, People's Republic of China
| | - Mi Zhou
- State Key Laboratory of Superhard Materials, Jilin University, Changchun 130012, Jilin Province, People's Republic of China
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2
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Klahn P, Zscherp R, Jimidar CC. Advances in the Synthesis of Enterobactin, Artificial Analogues, and Enterobactin-Derived Antimicrobial Drug Conjugates and Imaging Tools for Infection Diagnosis. SYNTHESIS-STUTTGART 2022. [DOI: 10.1055/a-1783-0751] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
AbstractIron is an essential growth factor for bacteria, but although highly abundant in nature, its bioavailability during infection in the human host or the environment is limited. Therefore, bacteria produce and secrete siderophores to ensure their supply of iron. The triscatecholate siderophore enterobactin and its glycosylated derivatives, the salmochelins, play a crucial role for iron acquisition in several bacteria. As these compounds can serve as carrier molecules for the design of antimicrobial siderophore drug conjugates as well as siderophore-derived tool compounds for the detection of infections with bacteria, their synthesis and the design of artificial analogues is of interest. In this review, we give an overview on the synthesis of enterobactin, biomimetic as well as totally artificial analogues, and related drug-conjugates covering up to 12/2021.1 Introduction2 Antibiotic Crisis and Sideromycins as Natural Templates for New Antimicrobial Drugs3 Biosynthesis of Enterobactin, Salmochelins, and Microcins4 Total Synthesis of Enterobactin and Salmochelins5 Chemoenzymatic Semi-synthesis of Salmochelins and Microcin E492m Derivatives6 Synthesis of Biomimetic Enterobactin Derivatives with Natural Tris-lactone Backbone7 Synthesis of Artificial Enterobactin Derivatives without Tris-lactone Backbone8 Conclusions
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Affiliation(s)
- Philipp Klahn
- Institute of Organic Chemistry, Technische Universität Braunschweig
- Department for Chemistry and Molecular Biology, University of Gothenburg
| | - Robert Zscherp
- Institute of Organic Chemistry, Technische Universität Braunschweig
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3
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Dangi V, Baral M, Kanungo BK. Photophysical Studies of a Catechol Based Polyfunctional Dipodal Chelator: Application for Optical Probe for Selective Detection of Fe(III). J Fluoresc 2020; 30:1131-1149. [PMID: 32648173 DOI: 10.1007/s10895-020-02583-2] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2020] [Accepted: 06/30/2020] [Indexed: 10/23/2022]
Abstract
A novel catechol based dipodal fluorescent chelator N,N'-bis[3-[(E)-(2,3-dihydroxyphenyl)methyleneamino]propyl]propanediamide(MPC), has been developed and its photophysical behaviour was studied by experimental (UV-VIS and fluorescence) and DFT method. The design of the molecule has been inspired from the naturally occurring siderophore enterobactin, a catechol based chelator with amide linkage, that shows an excellent binding efficiency towards Fe(III). The dipodal molecule (MPC) presented here, carries two catechol pendant binding moieties linked to the malonate central unit through propylene spacers by amide linkage. MPC showed good selectivity for Fe(III) at 10-4 M concentration in aqueous medium amongst the biologically and environmentally important metal ions chosen viz., Na(I), K(I), Al(III), Cr(III), Fe(III), Fe(II), Co(II), Ni(II), Cu(II), and Zn(II), by demonstrating a remarkable quenching in the fluorescent emission from 262 a.u. to 55 a.u. at λmax = 477 nm. Also, the pre-organized assembled ligand favored an efficient Fe (III) encapsulation through coordination by imine nitrogen and catecholate oxygen donors. High formation constant (log β = 31.3) for 1:1 metal-ligand complex evaluated by both potentiometric and spectrophotometric methods, established the strong binding efficiency of the ligand for Fe(III) metal ion. The binding stoichiometry in the complex was also confirmed from Stern -Volmer and Hill Plot analysis. Further investigation on the emission behavior of MPC in a completely DMSO system explored its suitability for extensive applications in the areas such as, metallurgy, material science, iron contamination remedial in the materials etc.. DFT studies suggest that the ligand displays a U-shaped geometry with a parallel π-stacking and the hydrogen bond between two arms. The experimental infrared, electronic, fluorescence, 1H nmr, 13C nmr spectra were correlated with the theoretical results. The nature of electronic transitions were identified from the TDDFT calculation. The ligand forms a hexa-coordinated complex with six Fe-O bonds extending an orthorhombic geometry due distortion from a regular octahedron.
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Affiliation(s)
- Vijay Dangi
- Department of Chemistry, National Institute of Technology, Kurukshetra, Haryana, 136119, India
| | - Minati Baral
- Department of Chemistry, National Institute of Technology, Kurukshetra, Haryana, 136119, India.
| | - B K Kanungo
- Department of Chemistry, Sant Longowal Institute of Engineering & Technology, Longowal, 148106, India
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4
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Mishra L, Sundararajan M, Bandyopadhyay T. Molecular dynamics simulations of plutonium binding and its decorporation from the binding-cleft of human serum transferrin. J Biol Inorg Chem 2020; 25:213-231. [PMID: 31980924 DOI: 10.1007/s00775-020-01753-8] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2019] [Accepted: 01/03/2020] [Indexed: 11/29/2022]
Abstract
The possibility of plutonium (Pu) intake by radiation workers can not be ruled out. Transportation of Pu(IV) to various organs/cells is mainly carried through iron-carrying protein, serum transferrin (sTf), by receptor-mediated endocytosis. Understanding the Pu-sTf interaction is a primary step toward future design of its decorporating agents. We report MD simulations of Pu(IV) binding with sTf and look out for its decorporation at extracellular pH using suitable ligands. MD simulations were carried out in polarizable water environment at different protonation states of the protein. Results unravel the binding motif of Pu(IV): (1) sTf binds the ion in closed conformation at extracellular serum pH with carbonate as synergistic anions, (2) change in protonation state of dilysine (K206 and K296)-trigger and that of the carbonate ion at acidic endosomal pH is found to cause conformational changes of protein, conducive for the heavy ion to be released, although; (3) strong electrostatic interaction between D63 in the binding-cleft and Pu(IV) is found not to ever set free the ion. In an endeavour to decorporate Pu(IV), fragmented molecular form of hydroxypyridinone (HOPO) and catechol (CAM)-based ligands are docked at the binding site (BS) of the protein and metadynamics simulations are conducted. Pu(IV) binding at BS is found to be so strong that it was not detached from BS with the docked HOPO. However, for the identical set of simulation parameters, CAM is found to facilitate dislodging the heavy ion from the protein's binding influence. Differential behaviour of the two chelators is further explored. Fragmented molecular form of hydroxy-pyridinone (HOPO) and catecholamide (CAM) ligands were docked at the binding-site (BS) of human serum transferrin (sTf) to explore their feasibility as plausible Pu(IV) decorporating agents by employing metadynamics method. CAM was found to dislodge Pu from the sTf BS, while HOPO could not.
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Affiliation(s)
- Lokpati Mishra
- Radiation Safety Systems Division, Bhabha Atomic Research Centre, Mumbai, 400 085, India.,Homi Bhabha National Institute, Mumbai, 400094, India
| | - Mahesh Sundararajan
- Theoretical Chemistry Section, Bhabha Atomic Research Centre, Mumbai, 400 085, India
| | - Tusar Bandyopadhyay
- Homi Bhabha National Institute, Mumbai, 400094, India. .,Theoretical Chemistry Section, Bhabha Atomic Research Centre, Mumbai, 400 085, India.
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5
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Guérard F, Beyler M, Lee YS, Tripier R, Gestin JF, Brechbiel MW. Investigation of the complexation of natZr(iv) and 89Zr(iv) by hydroxypyridinones for the development of chelators for PET imaging applications. Dalton Trans 2017; 46:4749-4758. [PMID: 28338136 PMCID: PMC5488699 DOI: 10.1039/c6dt04625h] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
Three hydroxypyridinone (HOPO) positional isomers - 1,2-HOPO (L1H) and its water soluble analogue (L1'H), 3,2-HOPO (L2H) and 3,4-HOPO (L3H) have been investigated for the complexation of Zr(iv). Potentiometric and UV-Vis spectrometric studies show a higher thermodynamic stability for the formation of Zr(L1')4 in comparison with Zr(L2)4 and Zr(L3)4 as well as a higher kinetic inertness in competition studies with EDTA or Fe3+ at a radiotracer concentration with 89Zr. Besides the low pKa of L1H or L1'H (pKa = 5.01) in comparison with L2H and L3H (pKa = 8.83 and 9.55, respectively), the higher stability of Zr(L1')4 can be attributed in part to the presence of the amide group next to the chelating oxygen that induces intramolecular H-bond and amide/π interactions that were observed by X-ray crystallography and confirmed by quantum chemical calculations. The data presented here indicate that the 1,2-HOPO L1' exhibits the best characteristics for Zr(iv) complexation. However, 3,2-HOPO and 3,4-HOPO patterns, if appropriately tuned, for instance with the addition of an amide group as in the 1,2-HOPO ligand, may also become interesting alternatives for the design of Zr(iv) chelators with improved characteristics for applications in nuclear imaging with 89Zr.
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Affiliation(s)
- F Guérard
- CRCINA, INSERM, CNRS, Université d'Angers, Université de Nantes, Nantes, France. and Radioimmune & Inorganic Chemistry Section, Radiation Oncology Branch, National Cancer Institute, National Institutes of Health, Bethesda, Maryland, USA
| | - M Beyler
- Université de Bretagne Occidentale, UMR-CNRS 6521 CEMCA, UFR des Sciences et Techniques, Brest, France
| | - Y-S Lee
- Center for Molecular Modeling, Division of Computational Bioscience, Center for Information Technology, National Institutes of Health, Bethesda, Maryland, USA
| | - R Tripier
- Université de Bretagne Occidentale, UMR-CNRS 6521 CEMCA, UFR des Sciences et Techniques, Brest, France
| | - J-F Gestin
- CRCINA, INSERM, CNRS, Université d'Angers, Université de Nantes, Nantes, France.
| | - M W Brechbiel
- Radioimmune & Inorganic Chemistry Section, Radiation Oncology Branch, National Cancer Institute, National Institutes of Health, Bethesda, Maryland, USA
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6
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Eckshtain-Levi M, Lavi R, Yufit DS, Daniel B, Green O, Fleker O, Richman M, Rahimipour S, Gruzman A, Benisvy L. A versatile water-soluble chelating and radical scavenging platform. Chem Commun (Camb) 2016; 52:2350-3. [DOI: 10.1039/c5cc08198j] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
The reported water-soluble, non-cytotoxic phenol-diamide compound, 1OH, is capable of both, trapping ROS species and chelating Cu(ii)/Fe(iii) ions; thereby inducing a protective effect against ROS induced cell death.
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Affiliation(s)
| | - Ronit Lavi
- Department of Chemistry
- Bar-Ilan University
- Ramat Gan 52900
- Israel
| | | | - Bareket Daniel
- Department of Chemistry
- Bar-Ilan University
- Ramat Gan 52900
- Israel
| | - Omer Green
- Department of Chemistry
- Bar-Ilan University
- Ramat Gan 52900
- Israel
| | - Ohad Fleker
- Department of Chemistry
- Bar-Ilan University
- Ramat Gan 52900
- Israel
| | - Michal Richman
- Department of Chemistry
- Bar-Ilan University
- Ramat Gan 52900
- Israel
| | - Shai Rahimipour
- Department of Chemistry
- Bar-Ilan University
- Ramat Gan 52900
- Israel
| | - Arie Gruzman
- Department of Chemistry
- Bar-Ilan University
- Ramat Gan 52900
- Israel
| | - Laurent Benisvy
- Department of Chemistry
- Bar-Ilan University
- Ramat Gan 52900
- Israel
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7
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Azomethine-H as a highly selective fluorescent probe for Fe3+ detection in 100% aqueous solution and its application in living cell imaging. Chem Res Chin Univ 2015. [DOI: 10.1007/s40242-015-5163-6] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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8
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Pandya DN, Pailloux S, Tatum D, Magda D, Wadas TJ. Di-macrocyclic terephthalamide ligands as chelators for the PET radionuclide zirconium-89. Chem Commun (Camb) 2015; 51:2301-3. [PMID: 25556851 DOI: 10.1039/c4cc09256b] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The development of bifunctional chelators (BFCs) which can stably chelate zirconium-89 ((89)Zr) while being conjugated to targeting molecules is an area of active research. Herein we report the first octadentate terephthalamide ligands, which are easily radiolabeled with (89)Zr and are highly stable in vitro. They represent a novel class of chelators, which are worthy of further development as BFCs for (89)Zr.
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Affiliation(s)
- Darpan N Pandya
- Radiochemistry Service and Cyclotron Operations, Cancer Biology and Radiology, Wake Forest School of Medicine, Medical Center Blvd., Winston-Salem, NC 27157, USA.
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9
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Hossain MD, Zhang J, Pandey RK, Sato T, Higuchi M. A Heterometallo-Supramolecular Polymer with CuIand FeIIIons Introduced Alternately. Eur J Inorg Chem 2014. [DOI: 10.1002/ejic.201402468] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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10
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Sedó J, Saiz-Poseu J, Busqué F, Ruiz-Molina D. Catechol-based biomimetic functional materials. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2013. [PMID: 23180685 DOI: 10.1002/adma.201202343] [Citation(s) in RCA: 477] [Impact Index Per Article: 43.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/08/2023]
Abstract
Catechols are found in nature taking part in a remarkably broad scope of biochemical processes and functions. Though not exclusively, such versatility may be traced back to several properties uniquely found together in the o-dihydroxyaryl chemical function; namely, its ability to establish reversible equilibria at moderate redox potentials and pHs and to irreversibly cross-link through complex oxidation mechanisms; its excellent chelating properties, greatly exemplified by, but by no means exclusive, to the binding of Fe(3+); and the diverse modes of interaction of the vicinal hydroxyl groups with all kinds of surfaces of remarkably different chemical and physical nature. Thanks to this diversity, catechols can be found either as simple molecular systems, forming part of supramolacular structures, coordinated to different metal ions or as macromolecules mostly arising from polymerization mechanisms through covalent bonds. Such versatility has allowed catechols to participate in several natural processes and functions that range from the adhesive properties of marine organisms to the storage of some transition metal ions. As a result of such an astonishing range of functionalities, catechol-based systems have in recent years been subject to intense research, aimed at mimicking these natural systems in order to develop new functional materials and coatings. A comprehensive review of these studies is discussed in this paper.
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Affiliation(s)
- Josep Sedó
- Centro de Investigación en Nanociencia y Nanotecnología, Campus UAB, Cerdanyola del Vallès, Barcelona, Spain
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11
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Young JA, Karmakar S, Jacobs HK, Gopalan AS. Synthetic approaches to mixed ligand chelators on t-butylphenol-formaldehyde oligomer (PFO) platforms. Tetrahedron 2012; 68:10030-10039. [PMID: 23226883 PMCID: PMC3513921 DOI: 10.1016/j.tet.2012.09.032] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
Synthetic approaches to mixed ligand chelators on readily available t-butylphenol-formaldehyde oligomer, PFO, scaffolds were examined. In a promising approach, tris and tetraphenol oligomers were selectively mono or di protected using t-butyldiphenyl silyl chloride. The utility of these protected intermediates to prepare representative mixed PFO chelators, carrying ligands such as hydroxamic acid, 3,2-hydroxypyridinones and others was then demonstrated. The introduction of the ligand tethers onto the phenolic scaffold can be done sequentially under relatively mild conditions that tolerate the presence of other sensitive ligand groups. The differential reactivity of the disilyl derivative 20b, allowed stepwise introduction of two different ligands on the internal phenolic positions. This enabled the introduction of three different ligand groups of choice onto the tetra phenol platform.
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Affiliation(s)
- Jennifer A. Young
- Department of Chemistry and Biochemistry, MSC 3C, New Mexico State University Tel: 575 646 2589; Fax: 575 646 2649
| | - Sukhen Karmakar
- Department of Chemistry and Biochemistry, MSC 3C, New Mexico State University Tel: 575 646 2589; Fax: 575 646 2649
| | - Hollie K. Jacobs
- Department of Chemistry and Biochemistry, MSC 3C, New Mexico State University Tel: 575 646 2589; Fax: 575 646 2649
| | - Aravamudan S. Gopalan
- Department of Chemistry and Biochemistry, MSC 3C, New Mexico State University Tel: 575 646 2589; Fax: 575 646 2649
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12
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Santos MA, Marques SM, Chaves S. Hydroxypyridinones as “privileged” chelating structures for the design of medicinal drugs. Coord Chem Rev 2012. [DOI: 10.1016/j.ccr.2011.08.008] [Citation(s) in RCA: 65] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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13
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Marenco MJC, Fowley C, Hyland BW, Galindo-Riaño D, Sahoo SK, Callan JF. A New Fluorescent Sensor for the Determination of Iron(III) in Semi-Aqueous Solution. J Fluoresc 2011; 22:795-8. [DOI: 10.1007/s10895-011-1015-z] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2011] [Accepted: 10/21/2011] [Indexed: 11/30/2022]
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14
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Abergel RJ, Raymond KN. Multidentate Terephthalamidate and Hydroxypyridonate Ligands: Towards New Orally Active Chelators. Hemoglobin 2011; 35:276-90. [DOI: 10.3109/03630269.2011.560771] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
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15
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Harrington JM, Chittamuru S, Dhungana S, Jacobs HK, Gopalan AS, Crumbliss AL. Synthesis and iron sequestration equilibria of novel exocyclic 3-hydroxy-2-pyridinone donor group siderophore mimics. Inorg Chem 2011; 49:8208-21. [PMID: 20715813 DOI: 10.1021/ic902595c] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
The synthesis of a novel class of exocyclic bis- and tris-3,2-hydroxypyridinone (HOPO) chelators built on N(2) and N(3) aza-macrocyclic scaffolds and the thermodynamic solution characterization of their complexes with Fe(III) are described. The chelators for this study were prepared by reaction of either piperazine or N,N',N''-1,4,7-triazacyclononane with a novel electrophilic HOPO iminium salt in good yields. Subsequent removal of the benzyl protecting groups using HBr/acetic acid gave bis-HOPO chelators N(2)(etLH)(2) and N(2)(prLH)(2), and tris-HOPO chelator N(3)(etLH)(3) in excellent yields. Solution thermodynamic characterization of their complexes with Fe(III) was accomplished using spectrophotometric, potentiometric, and electrospray ionization-mass spectrometry (ESI-MS) methods. The pK(a)'s of N(2)(etLH)(2), N(2)(prLH)(2), and N(3)(etLH)(3), were determined spectrophotometrically and potentiometrically. The Fe(III) complex stability constants for the tetradentate N(2)(etLH)(2) and N(2)(prLH)(2), and hexadentate N(3)(etLH)(3), were measured by spectrophotometric and potentiometric titration, and by competition with ethylenediaminetetraacetic acid (EDTA). N(3)(etLH)(3) forms a 1:1 complex with Fe(III) with log β(110) = 27.34 ± 0.04. N(2)(prLH)(2) forms a 3:2 L:Fe complex with Fe(III) where log β(230) = 60.46 ± 0.04 and log β(110) = 20.39 ± 0.02. While N(2)(etLH)(2) also forms a 3:2 L:Fe complex with Fe(III), solubility problems precluded determining log β(230); log β(110) was found to be 20.45 ± 0.04. The pFe values of 26.5 for N(3)(etLH)(3) and 24.78 for N(2)(prLH)(2) are comparable to other siderophore molecules used in the treatment of iron overload, suggesting that these hydroxypyridinone ligands may be useful in the development of new chelation therapy agents.
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Affiliation(s)
- James M Harrington
- Department of Chemistry, Duke University, Durham, North Carolina 27708-0346, USA
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16
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Arumugam J, Brown HA, Jacobs HK, Gopalan AS. New Synthetic Approach for the Incorporation of 3,2-Hydroxypyridinone (HOPO) Ligands: Synthesis of Structurally Diverse Poly HOPO Chelators. SYNTHESIS-STUTTGART 2011; 2011:57-64. [PMID: 21709749 DOI: 10.1055/s-0030-1258337] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
The HOPO sulfonamide reagent, 3, was prepared from commercial 2,3-dihydroxypyridine in four steps in good yields. Sulfonamide 3 readily underwent selective alkylation with dibromides in the presence of base or could be coupled to alcohols using Mitsunobu conditions. The utility of this nucleophilic HOPO reagent was demonstrated by the synthesis some tris and tetraHOPO chelators. This approach for tethering HOPO ligands is unique and flexible as shown by the preparation of HOPO/iminocarboxylic acid chelator 17.
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Affiliation(s)
- Jayanthi Arumugam
- Department of Chemistry and Biochemistry, New Mexico State University, Las Cruces, NM 88003-8001
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17
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Chaves S, Marques S, Matos A, Nunes A, Gano L, Tuccinardi T, Martinelli A, Santos M. New Tris(hydroxypyridinones) as Iron and Aluminium Sequestering Agents: Synthesis, Complexation and In Vivo Studies. Chemistry 2010; 16:10535-45. [DOI: 10.1002/chem.201001335] [Citation(s) in RCA: 40] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
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18
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Single sensor for multiple analytes: chromogenic detection of I− and fluorescent detection of Fe3+. Tetrahedron Lett 2010. [DOI: 10.1016/j.tetlet.2010.05.105] [Citation(s) in RCA: 97] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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19
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Singh N, Kaur N, Callan JF. Incorporation of Siderophore Binding Sites in a Dipodal Fluorescent Sensor for Fe(III). J Fluoresc 2009; 19:649-54. [DOI: 10.1007/s10895-008-0457-4] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2008] [Accepted: 12/16/2008] [Indexed: 10/21/2022]
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20
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Crumbliss AL, Harrington JM. Iron sequestration by small molecules: Thermodynamic and kinetic studies of natural siderophores and synthetic model compounds. ADVANCES IN INORGANIC CHEMISTRY 2009. [DOI: 10.1016/s0898-8838(09)00204-9] [Citation(s) in RCA: 76] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
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21
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Burgess J, Rangel M. Hydroxypyranones, hydroxypyridinones, and their complexes. ADVANCES IN INORGANIC CHEMISTRY 2008. [DOI: 10.1016/s0898-8838(08)00005-6] [Citation(s) in RCA: 39] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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22
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Abergel RJ, Raymond KN. Terephthalamide-containing ligands: fast removal of iron from transferrin. J Biol Inorg Chem 2007; 13:229-40. [DOI: 10.1007/s00775-007-0314-y] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2007] [Accepted: 10/19/2007] [Indexed: 12/01/2022]
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Chittamuru S, Lambert TN, Martinez G, Jacobs HK, Gopalan AS. New methodology for the preparation of 3-hydroxy-2-pyridinone (3,2-HOPO) chelators and extractants. Part 2. Reactions of alcohols, phenols, and thiols with an electrophilic 3,2-HOPO reagent(). Tetrahedron Lett 2007; 48:567-571. [PMID: 23162171 DOI: 10.1016/j.tetlet.2006.11.128] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
The reactions of the electrophilic iminium ester mesylate salt 1 with alcohols, phenols and thiols has been investigated. In the presence of base, thiols, phenols and thiophenol react with 1 to give the corresponding ether linked HOPO derivatives in good yields. However, the ring opening of salt 1 with alcohols could only be accomplished efficiently using a large excess of the alcohol in the presence of methanesulfonic acid at 80°C. The synthetic utility of HOPO precursor, 1, has been demonstrated by the synthesis of two polyHOPO chelators 7 and 9.
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Affiliation(s)
- Sumathi Chittamuru
- Department of Chemistry and Biochemistry, MSC 3C, New Mexico State University, Las Cruces, NM 88003-8001
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