1
|
Mitra S, Sarkar R, Chakrabarty A, Mukherjee S. Hydroxy-directed iridium-catalyzed enantioselective formal β-C(sp 2)-H allylic alkylation of α,β-unsaturated carbonyls. Chem Sci 2022; 13:12491-12497. [PMID: 36382287 PMCID: PMC9629034 DOI: 10.1039/d2sc03966d] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2022] [Accepted: 10/12/2022] [Indexed: 02/12/2024] Open
Abstract
Hydroxy-directed iridium-catalyzed enantioselective formal β-C(sp2)-H allylic alkylation of kojic acid and structurally related α,β-unsaturated carbonyl compounds is developed. This reaction, catalyzed by an Ir(i)/(P,olefin) complex, utilizes the nucleophilic character of α-hydroxy α,β-unsaturated carbonyls, to introduce an allyl group at its β-position in a branched-selective manner in good to excellent yield with uniformly high enantioselectivity (up to >99.9 : 0.1 er). To the best of our knowledge, this report represents the first example of the use of kojic acid in a transition metal catalyzed highly enantioselective transformation.
Collapse
Affiliation(s)
- Sankash Mitra
- Department of Organic Chemistry, Indian Institute of Science Bangalore 560 012 India +91-80-2360-0529 +91-80-2293-2850
| | - Rahul Sarkar
- Department of Organic Chemistry, Indian Institute of Science Bangalore 560 012 India +91-80-2360-0529 +91-80-2293-2850
| | - Aditya Chakrabarty
- Department of Organic Chemistry, Indian Institute of Science Bangalore 560 012 India +91-80-2360-0529 +91-80-2293-2850
| | - Santanu Mukherjee
- Department of Organic Chemistry, Indian Institute of Science Bangalore 560 012 India +91-80-2360-0529 +91-80-2293-2850
| |
Collapse
|
2
|
Hydroxypyridinones as a Very Promising Platform for Targeted Diagnostic and Therapeutic Radiopharmaceuticals. Molecules 2021. [DOI: 10.3390/molecules26226997
expr 973886017 + 973118332] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/16/2023] Open
Abstract
Hydroxypyridinones (HOPOs) have been used in the chelation therapy of iron and actinide metals. Their application in metal-based radiopharmaceuticals has also been increasing in recent years. This review article focuses on how multidentate HOPOs can be used in targeted radiometal-based diagnostic and therapeutic radiopharmaceuticals. The general structure of radiometal-based targeted radiopharmaceuticals, a brief description of siderophores, the basic structure and properties of bidentate HOPO, some representative HOPO multidentate chelating agents, radiopharmaceuticals based on HOPO multidentate bifunctional chelators for gallium-68, thorium-227 and zirconium-89, as well as the future prospects of HOPO multidentate bifunctional chelators in other metal-based radiopharmaceuticals are described and discussed in turn. The HOPO metal-based radiopharmaceuticals that have shown good prospects in clinical and preclinical studies are gallium-68, thorium-227 and zirconium-89 radiopharmaceuticals. We expect HOPO multidentate bifunctional chelators to be a very promising platform for building novel targeted radiometal-based diagnostic and therapeutic radiopharmaceuticals.
Collapse
|
3
|
Zhou X, Dong L, Shen L. Hydroxypyridinones as a Very Promising Platform for Targeted Diagnostic and Therapeutic Radiopharmaceuticals. Molecules 2021; 26:6997. [PMID: 34834087 PMCID: PMC8619595 DOI: 10.3390/molecules26226997&set/a 916769719+956065658] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/16/2023] Open
Abstract
Hydroxypyridinones (HOPOs) have been used in the chelation therapy of iron and actinide metals. Their application in metal-based radiopharmaceuticals has also been increasing in recent years. This review article focuses on how multidentate HOPOs can be used in targeted radiometal-based diagnostic and therapeutic radiopharmaceuticals. The general structure of radiometal-based targeted radiopharmaceuticals, a brief description of siderophores, the basic structure and properties of bidentate HOPO, some representative HOPO multidentate chelating agents, radiopharmaceuticals based on HOPO multidentate bifunctional chelators for gallium-68, thorium-227 and zirconium-89, as well as the future prospects of HOPO multidentate bifunctional chelators in other metal-based radiopharmaceuticals are described and discussed in turn. The HOPO metal-based radiopharmaceuticals that have shown good prospects in clinical and preclinical studies are gallium-68, thorium-227 and zirconium-89 radiopharmaceuticals. We expect HOPO multidentate bifunctional chelators to be a very promising platform for building novel targeted radiometal-based diagnostic and therapeutic radiopharmaceuticals.
Collapse
Affiliation(s)
- Xu Zhou
- HTA Co., Ltd., Beijing 102413, China;
- China Isotope & Radiation Corporation, Beijing 100089, China;
| | - Linlin Dong
- China Isotope & Radiation Corporation, Beijing 100089, China;
| | - Langtao Shen
- HTA Co., Ltd., Beijing 102413, China;
- China Isotope & Radiation Corporation, Beijing 100089, China;
- National Isotope Center of Engineering and Technology, China Institute of Atomic Energy, Beijing 102413, China
- Correspondence:
| |
Collapse
|
4
|
Zhou X, Dong L, Shen L. Hydroxypyridinones as a Very Promising Platform for Targeted Diagnostic and Therapeutic Radiopharmaceuticals. Molecules 2021; 26:6997. [PMID: 34834087 PMCID: PMC8619595 DOI: 10.3390/molecules26226997] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2021] [Revised: 11/13/2021] [Accepted: 11/17/2021] [Indexed: 01/30/2023] Open
Abstract
Hydroxypyridinones (HOPOs) have been used in the chelation therapy of iron and actinide metals. Their application in metal-based radiopharmaceuticals has also been increasing in recent years. This review article focuses on how multidentate HOPOs can be used in targeted radiometal-based diagnostic and therapeutic radiopharmaceuticals. The general structure of radiometal-based targeted radiopharmaceuticals, a brief description of siderophores, the basic structure and properties of bidentate HOPO, some representative HOPO multidentate chelating agents, radiopharmaceuticals based on HOPO multidentate bifunctional chelators for gallium-68, thorium-227 and zirconium-89, as well as the future prospects of HOPO multidentate bifunctional chelators in other metal-based radiopharmaceuticals are described and discussed in turn. The HOPO metal-based radiopharmaceuticals that have shown good prospects in clinical and preclinical studies are gallium-68, thorium-227 and zirconium-89 radiopharmaceuticals. We expect HOPO multidentate bifunctional chelators to be a very promising platform for building novel targeted radiometal-based diagnostic and therapeutic radiopharmaceuticals.
Collapse
Affiliation(s)
- Xu Zhou
- HTA Co., Ltd., Beijing 102413, China;
- China Isotope & Radiation Corporation, Beijing 100089, China;
| | - Linlin Dong
- China Isotope & Radiation Corporation, Beijing 100089, China;
| | - Langtao Shen
- HTA Co., Ltd., Beijing 102413, China;
- China Isotope & Radiation Corporation, Beijing 100089, China;
- National Isotope Center of Engineering and Technology, China Institute of Atomic Energy, Beijing 102413, China
| |
Collapse
|
5
|
Complexation of environmentally and biologically relevant metals with bifunctional 3-hydroxy-4-pyridinones. J Mol Liq 2020. [DOI: 10.1016/j.molliq.2020.114349] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
|
6
|
A new bis-(3-hydroxy-4-pyridinone)-DTPA-derivative: Synthesis, complexation of di-/tri-valent metal cations and in vivo M3+ sequestering ability. J Mol Liq 2019. [DOI: 10.1016/j.molliq.2019.02.042] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
|
7
|
Scorciapino MA, Malloci G, Serra I, Milenkovic S, Moynié L, Naismith JH, Desarbre E, Page MGP, Ceccarelli M. Complexes formed by the siderophore-based monosulfactam antibiotic BAL30072 and their interaction with the outer membrane receptor PiuA of P. aeruginosa. Biometals 2019; 32:155-170. [DOI: 10.1007/s10534-018-00166-0] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2018] [Accepted: 12/20/2018] [Indexed: 10/27/2022]
|
8
|
New bis-(3-hydroxy-4-pyridinone)-NTA-derivative: Synthesis, binding ability towards Ca2+, Cu2+, Zn2+, Al3+, Fe3+ and biological assays. J Mol Liq 2018. [DOI: 10.1016/j.molliq.2018.09.107] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
|
9
|
Cappai R, Chand K, Lachowicz JI, Chaves S, Gano L, Crisponi G, Nurchi VM, Peana M, Zoroddu MA, Santos MA. A new tripodal-3-hydroxy-4-pyridinone for iron and aluminium sequestration: synthesis, complexation and in vivo studies. NEW J CHEM 2018. [DOI: 10.1039/c8nj00116b] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A new highly efficient tris-hydroxypyridinone chelator for iron and aluminum, with promising capacity as a potential metal decorporation agent.
Collapse
Affiliation(s)
- Rosita Cappai
- Centro de Química Estrutural
- Instituto Superior Técnico
- Universidade de Lisboa
- 1049-001 Lisboa
- Portugal
| | - Karam Chand
- Centro de Química Estrutural
- Instituto Superior Técnico
- Universidade de Lisboa
- 1049-001 Lisboa
- Portugal
| | - Joanna I. Lachowicz
- Dipartimento di Scienze Chimiche e Geologiche
- Università di Cagliari
- Cittadella Universitaria
- 09042 Monserrato-Cagliari
- Italy
| | - Sílvia Chaves
- Centro de Química Estrutural
- Instituto Superior Técnico
- Universidade de Lisboa
- 1049-001 Lisboa
- Portugal
| | - Lurdes Gano
- Centro de Ciências e Tecnologias Nucleares (C2TN)
- Instituto Superior Técnico
- Universidade de Lisboa
- 2695-066 Bobadela LRS
- Portugal
| | - Guido Crisponi
- Dipartimento di Scienze Chimiche e Geologiche
- Università di Cagliari
- Cittadella Universitaria
- 09042 Monserrato-Cagliari
- Italy
| | - Valeria M. Nurchi
- Dipartimento di Scienze Chimiche e Geologiche
- Università di Cagliari
- Cittadella Universitaria
- 09042 Monserrato-Cagliari
- Italy
| | - Massimiliano Peana
- Dipartimento di Chimica e Farmacia
- Università di Sassari
- 07100 Sassari
- Italy
| | | | - M. Amélia Santos
- Centro de Química Estrutural
- Instituto Superior Técnico
- Universidade de Lisboa
- 1049-001 Lisboa
- Portugal
| |
Collapse
|
10
|
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.
Collapse
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
| |
Collapse
|
11
|
Cusnir R, Imberti C, Hider RC, Blower PJ, Ma MT. Hydroxypyridinone Chelators: From Iron Scavenging to Radiopharmaceuticals for PET Imaging with Gallium-68. Int J Mol Sci 2017; 18:E116. [PMID: 28075350 PMCID: PMC5297750 DOI: 10.3390/ijms18010116] [Citation(s) in RCA: 45] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2016] [Revised: 12/05/2016] [Accepted: 12/21/2016] [Indexed: 01/18/2023] Open
Abstract
Derivatives of 3,4-hydroxypyridinones have been extensively studied for in vivo Fe3+ sequestration. Deferiprone, a 1,2-dimethyl-3,4-hydroxypyridinone, is now routinely used for clinical treatment of iron overload disease. Hexadentate tris(3,4-hydroxypyridinone) ligands (THP) complex Fe3+ at very low iron concentrations, and their high affinities for oxophilic trivalent metal ions have led to their development for new applications as bifunctional chelators for the positron emitting radiometal, 68Ga3+, which is clinically used for molecular imaging in positron emission tomography (PET). THP-peptide bioconjugates rapidly and quantitatively complex 68Ga3+ at ambient temperature, neutral pH and micromolar concentrations of ligand, making them amenable to kit-based radiosynthesis of 68Ga PET radiopharmaceuticals. 68Ga-labelled THP-peptides accumulate at target tissue in vivo, and are excreted largely via a renal pathway, providing high quality PET images.
Collapse
Affiliation(s)
- Ruslan Cusnir
- Division of Imaging Sciences and Biomedical Engineering, King's College London, Fourth Floor Lambeth Wing, St. Thomas' Hospital, London SE1 7EH, UK.
| | - Cinzia Imberti
- Division of Imaging Sciences and Biomedical Engineering, King's College London, Fourth Floor Lambeth Wing, St. Thomas' Hospital, London SE1 7EH, UK.
| | - Robert C Hider
- Institute of Pharmaceutical Science, King's College London, Franklin-Wilkins Building, 150 Stamford Street, London SE1 9NH, UK.
| | - Philip J Blower
- Division of Imaging Sciences and Biomedical Engineering, King's College London, Fourth Floor Lambeth Wing, St. Thomas' Hospital, London SE1 7EH, UK.
| | - Michelle T Ma
- Division of Imaging Sciences and Biomedical Engineering, King's College London, Fourth Floor Lambeth Wing, St. Thomas' Hospital, London SE1 7EH, UK.
| |
Collapse
|
12
|
Elmakki MA, Koen R, Venter JA, Drost R. Crystal structure of dicarbonyl(pyridin-2-olate-1-oxido-κ 2
O, O′)rhodium(I), C 7H 4NO 4Rh. Z KRIST-NEW CRYST ST 2016. [DOI: 10.1515/ncrs-2015-0240] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
C7H4NO4Rh, monoclinic, P21/c (no. 14), a = 3.5780(12) Å, b = 10.932(4) Å, c = 20.866(7) Å, β = 94.792(11)°, V = 813.3(12) Å3, Z = 4, R
gt
(F) = 0.0345, wR
ref
(F
2
) = 0.0712, T = 100 K.
Collapse
Affiliation(s)
| | - Renier Koen
- Department of Chemistry, University of the Free State, Nelson Mandela ave, Bloemfontein, South Africa
| | - Johan Andries Venter
- Department of Chemistry, University of the Free State, Nelson Mandela ave, Bloemfontein, South Africa
| | - Ruben Drost
- Department of Chemistry, University of the Free State, Nelson Mandela ave, Bloemfontein, South Africa
| |
Collapse
|
13
|
Modeling of stability and properties of anionic and cationic tautomers of the 3-hydroxypyridin-4-one system. COMPUT THEOR CHEM 2016. [DOI: 10.1016/j.comptc.2015.12.023] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
|
14
|
Lachowicz JI, Nurchi VM, Crisponi G, Jaraquemada-Pelaez MG, Arca M, Pintus A, Santos MA, Quintanova C, Gano L, Szewczuk Z, Zoroddu MA, Peana M, Domínguez-Martín A, Choquesillo-Lazarte D. Hydroxypyridinones with enhanced iron chelating properties. Synthesis, characterization and in vivo tests of 5-hydroxy-2-(hydroxymethyl)pyridine-4(1H)-one. Dalton Trans 2016; 45:6517-28. [DOI: 10.1039/c6dt00129g] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
an tautomeric changes positively influence coordinating ability?
Collapse
|
15
|
3-Hydroxypyridinone derivatives as metal-sequestering agents for therapeutic use. Future Med Chem 2015; 7:383-410. [PMID: 25826364 DOI: 10.4155/fmc.14.162] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
Although iron is one of the most important metal ions for living organisms, it becomes toxic when in excess or misplaced. This review presents a glance at representative examples of hydroxypyridinone-based chelators, which have been recently developed as potential clinically useful drugs for metal overload diseases, mostly associated with excess of iron but also other hard metal-ions. It also includes a detailed discussion on the factors assisting chelator design strategy toward fulfillment of the most relevant biochemical properties of hydroxypyridinone chelators, highlighting structure-activity relationships and a variety of potential clinical applications, beyond chelatotherapy. This study appears as a response to the growing interest on metal chelation therapy and opens new perspectives of possible applications in future medicine.
Collapse
|
16
|
Crisponi G, Nurchi VM, Lachowicz JI, Crespo-Alonso M, Zoroddu MA, Peana M. Kill or cure: Misuse of chelation therapy for human diseases. Coord Chem Rev 2015. [DOI: 10.1016/j.ccr.2014.04.023] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
|
17
|
Nurchi VM, Crisponi G, Arca M, Crespo-Alonso M, Lachowicz JI, Mansoori D, Toso L, Pichiri G, Amelia Santos M, Marques SM, Niclós-Gutiérrez J, González-Pérez JM, Domínguez-Martín A, Choquesillo-Lazarte D, Szewczuk Z, Antonietta Zoroddu M, Peana M. A new bis-3-hydroxy-4-pyrone as a potential therapeutic iron chelating agent. Effect of connecting and side chains on the complex structures and metal ion selectivity. J Inorg Biochem 2014; 141:132-143. [DOI: 10.1016/j.jinorgbio.2014.09.002] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2014] [Revised: 09/03/2014] [Accepted: 09/03/2014] [Indexed: 01/02/2023]
|
18
|
Crisponi G, Nurchi VM, Zoroddu MA. Iron Chelating Agents for Iron Overload Diseases. THALASSEMIA REPORTS 2014. [DOI: 10.4081/thal.2014.2046] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023] Open
Abstract
Although iron is an essential element for life, an excessive amount may become extremely toxic both for its ability to generate reactive oxygen species, and for the lack in humans of regulatory mechanisms for iron excretion. Chelation therapy has been introduced in clinical practice in the seventies of last century to defend thalassemic patients from the effects of iron overload and, in spite of all its limitations, it has dramatically changed both life expectancy and quality of life of patients. It has to be considered that the drugs in clinical use present some disadvantages too, this makes urgent new more suitable chelating agents. The requirements of an iron chelator have been better and better defined over the years and in this paper they will be discussed in detail. As a final point the most interesting ligands studied in the last years will be presented.
Collapse
|
19
|
Neupane P, Xia L, Lee YR. One-Pot Synthesis of Multi-Substituted 4-Pyrones by a Gold- Catalyzed Cascade of Wolff Rearrangement/[4+2] Cycloaddition/ Elimination Reactions. Adv Synth Catal 2014. [DOI: 10.1002/adsc.201301086] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
|
20
|
A field effect transistor biosensor with a γ-pyrone derivative engineered lipid-sensing layer for ultrasensitive Fe3+ ion detection with low pH interference. Biosens Bioelectron 2014; 54:571-7. [DOI: 10.1016/j.bios.2013.11.051] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2013] [Revised: 11/11/2013] [Accepted: 11/16/2013] [Indexed: 11/23/2022]
|
21
|
Gumienna-Kontecka E, Nurchi VM, Szebesczyk A, Bilska P, Krzywoszynska K, Kozlowski H. Chelating Agents as Tools for the Treatment of Metal Overload. Z Anorg Allg Chem 2013. [DOI: 10.1002/zaac.201300064] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
|
22
|
Martinez G, Arumugam J, Jacobs HK, Gopalan AS. 3,2-Hydroxypyridinone (3,2-HOPO) vinyl sulfonamide and acrylamide linkers: Aza-Michael addition reactions and the preparation of poly-HOPO chelators. Tetrahedron Lett 2013; 54:630-634. [PMID: 23355751 PMCID: PMC3551596 DOI: 10.1016/j.tetlet.2012.11.136] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
The HOPO vinyl sulfonamide 3 and the corresponding HOPO acrylamide 10, were easily prepared by short synthetic sequences. Investigation of the aza-Michael reactions of these linkers showed that they proceed at a higher rate in solvent systems containing water. The scope and limits of the aza-Michael reactions of 3 and 10 were examined. Reagents 3 and 10 reacted cleanly with piperazine to give the corresponding adducts which were deprotected to give the di-HOPO ligands 7 and 16. Reaction of HOPO acrylamide 10 with 1,4,7-triazacyclononane gave the tris-adduct 17 which was deprotected to give the desired tris-HOPO ligand 18. Overall, the aza-Michael reactions of 3 and 10 appear to be governed not only by the solvent but also by the nature of the amine and the solubility of the reaction intermediates.
Collapse
Affiliation(s)
- Gloria Martinez
- Department of Chemistry and Biochemistry, MSC 3C, New Mexico State University, Las Cruces, NM 88003-8001 USA
| | - Jayanthi Arumugam
- Department of Chemistry and Biochemistry, MSC 3C, New Mexico State University, Las Cruces, NM 88003-8001 USA
| | - Hollie K. Jacobs
- Department of Chemistry and Biochemistry, MSC 3C, New Mexico State University, Las Cruces, NM 88003-8001 USA
| | - Aravamudan S. Gopalan
- Department of Chemistry and Biochemistry, MSC 3C, New Mexico State University, Las Cruces, NM 88003-8001 USA
| |
Collapse
|
23
|
Nguyen Duc T, El Zein R, Raimundo JM, Dallaporta H, Charrier AM. Label free femtomolar electrical detection of Fe(iii) ions with a pyridinone modified lipid monolayer as the active sensing layer. J Mater Chem B 2013; 1:443-446. [DOI: 10.1039/c2tb00438k] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
|
24
|
Sahoo SK, Sharma D, Bera RK, Crisponi G, Callan JF. Iron(III) selective molecular and supramolecular fluorescent probes. Chem Soc Rev 2012; 41:7195-227. [PMID: 22885471 DOI: 10.1039/c2cs35152h] [Citation(s) in RCA: 504] [Impact Index Per Article: 42.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Iron is one of the most important elements in metabolic processes, being indispensable for all living systems and therefore it is extensively distributed in environmental and biological materials. However, both its deficiency and excess from the normal permissible limit can induce serious disorders. Therefore, several analytical techniques have been adopted for the detection of iron. Among the various techniques used for its detection, the method based on fluorescent sensors has received considerable interest in recent years because of its ability to provide online monitoring of very low concentrations without any pre-treatment of the sample together with the advantages of spatial and temporal resolution. In this article, efforts have been made to review the various molecular and supramolecular fluorescent sensors that have been developed for the selective detection of iron(III).
Collapse
Affiliation(s)
- Suban K Sahoo
- Department of Applied Chemistry, SV National Institute Technology, Surat-395007, Gujrat, India.
| | | | | | | | | |
Collapse
|
25
|
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]
|
26
|
|
27
|
Crisponi G, Nurchi VM, Faa G, Remelli M. Human diseases related to aluminium overload. MONATSHEFTE FUR CHEMIE 2011. [DOI: 10.1007/s00706-011-0474-x] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
|
28
|
Synthesis and characterization of a new 4-pyridone derivative and its complexation of iron(III). J Mol Struct 2011. [DOI: 10.1016/j.molstruc.2011.01.051] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
|
29
|
Grazina R, Santos MA. New hydroxypyridinone-functionalized sepharoses as sorbing agents for hard metal ions. JOURNAL OF HAZARDOUS MATERIALS 2011; 186:1902-1908. [PMID: 21239106 DOI: 10.1016/j.jhazmat.2010.12.084] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/17/2010] [Revised: 12/17/2010] [Accepted: 12/17/2010] [Indexed: 05/30/2023]
Abstract
Two new polymeric matrices functionalized with 3-hydroxy-4-pyridinone chelating units (HP-NH-SEPH and HP-C=NH-SEPH) have been prepared and studied for their chelating ability towards a set of metal ions (e.g. Fe(III), Al(III), and Th(IV)). Both matrices demonstrated excellent ability to complex these metal ions, but HP-NH-SEPH evidenced higher chelating capacity than HP-C=NH-SEPH. The corresponding metal-complex gels presented high stability in the pH range 3-7, and their chelating capacity followed the order, Fe(III)≈Th(IV)>Al(III), in agreement with previously reported thermodynamics of the corresponding monomeric ligand-metal complexes in aqueous solution. These functionalized supports also showed capacity to be regenerated and reused. Thus, there are good perspectives for potential environmental and medical applications of these new metal sorbents.
Collapse
Affiliation(s)
- Raquel Grazina
- Centro Química Estrutural, Instituto Superior Técnico-UTL, Av. Rovisco Pais, 1049-001 Lisboa, Portugal
| | | |
Collapse
|
30
|
Zborowski KK, Solà M, Poater J, Proniewicz LM. Theoretical studies on aromaticity of selected hydroxypyrones. Part 3#. Chelatoaromaticity phenomenon in metalcomplexes of hydroxypyrones. J PHYS ORG CHEM 2010. [DOI: 10.1002/poc.1794] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
|
31
|
Chaves S, Mendonça AC, Marques SM, Prata MI, Santos AC, Martins AF, Geraldes CFGC, Santos MA. A gallium complex with a new tripodal tris-hydroxypyridinone for potential nuclear diagnostic imaging: solution and in vivo studies of 67Ga-labeled species. J Inorg Biochem 2010; 105:31-8. [PMID: 21134600 DOI: 10.1016/j.jinorgbio.2010.09.012] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2010] [Revised: 09/27/2010] [Accepted: 09/29/2010] [Indexed: 11/15/2022]
Abstract
The gallium(III) complex of a new tripodal 3-hydroxy-4-pyridinone (3,4-HP) chelator has been studied in terms of its physico-chemical and in vivo properties aimed at potential application as probe for nuclear imaging. In particular, based on spectrophotometric titrations, the hexa-coordinated (1:1) gallium complex appeared as the major species in a wide physiological acid-neutral pH range and its high stability (pGa=27.5) should avoid drug-induced toxicity resulting from Ga(III) accumulation in tissues due to processes of transmetallation with endogenenous ligands or demetallation. A multinuclear ((1)H and (71)Ga) NMR study gave some insights into the structure and dynamics of the gallium(III) chelate in solution, which are consistent with the tris-(3,4-HP) coordination and an eventual pseudo-octahedral geometry. Biodistribution and scintigraphic studies of the (67)Ga(III) labelled chelate, performed in Wistar rats, confirmed the in vivo stability of the radiolabelled complex, its non interaction with blood proteins and its quick renal clearance. These results indicate good perspectives for potential application of extrafunctionalized analogues in radiodiagnostic techniques.
Collapse
Affiliation(s)
- Sílvia Chaves
- Centro de Química Estrutural, Instituto Superior Técnico-UTL, 1049-001 Lisboa, Portugal
| | | | | | | | | | | | | | | |
Collapse
|
32
|
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]
|
33
|
Nurchi VM, Crisponi G, Lachowicz JI, Murgia S, Pivetta T, Remelli M, Rescigno A, Niclós-Gutíerrez J, González-Pérez JM, Domínguez-Martín A, Castiñeiras A, Szewczuk Z. Iron(III) and aluminum(III) complexes with hydroxypyrone ligands aimed to design kojic acid derivatives with new perspectives. J Inorg Biochem 2010; 104:560-9. [PMID: 20185179 DOI: 10.1016/j.jinorgbio.2010.01.007] [Citation(s) in RCA: 45] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2009] [Revised: 01/05/2010] [Accepted: 01/11/2010] [Indexed: 11/16/2022]
|
34
|
Chaves S, Dron PI, Danalache FA, Sacoto D, Gano L, Santos MA. Combined chelation based on glycosyl-mono- and bis-hydroxypyridinones for aluminium mobilization: Solution and biodistribution studies. J Inorg Biochem 2009; 103:1521-9. [DOI: 10.1016/j.jinorgbio.2009.07.026] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2009] [Revised: 07/06/2009] [Accepted: 07/09/2009] [Indexed: 10/20/2022]
|
35
|
Santos MA, Gama S, Gil M, Gano L. A New Approach for Potential Combined Chelation Therapy Using Mono- and Bis-Hydroxypyridinones. Hemoglobin 2009; 32:147-56. [DOI: 10.1080/03630260701726939] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
|
36
|
Yan YL, Miller MT, Cao Y, Cohen SM. Synthesis of hydroxypyrone- and hydroxythiopyrone-based matrix metalloproteinase inhibitors: developing a structure-activity relationship. Bioorg Med Chem Lett 2009; 19:1970-6. [PMID: 19261472 PMCID: PMC2833267 DOI: 10.1016/j.bmcl.2009.02.044] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2009] [Accepted: 02/10/2009] [Indexed: 11/22/2022]
Abstract
The zinc(II)-dependent matrix metalloproteinases (MMPs) are associated with a variety of diseases. Development of inhibitors to modulate MMP activity has been an active area of investigation for therapeutic development. Hydroxypyrones and hydroxythiopyrones are alternative zinc-binding groups (ZBGs) that, when combined with peptidomimetic backbones, comprise a novel class of MMP inhibitors (MMPi). In this report, a series of hydroxypyrone- and hydroxythiopyrone-based MMPi with aryl backbones at the 2-, 5-, and 6-positions of the hydroxypyrone ring have been synthesized. Synthetic routes for developing inhibitors with substituents at two of these positions (so-called double-handed inhibitors) are also explored. The MMP inhibition profiles and structure-activity relationship of synthesized hydroxypyrones and hydroxythiopyrones have been analyzed. The results here show that the ZBG, the position of the backbone on the ZBG, and the nature of the linker between the ZBG and backbone are critical for MMPi activities.
Collapse
Affiliation(s)
- Yi-Long Yan
- Department of Chemistry and Biochemistry, University of California, San Diego, La Jolla, CA 92093-0358, United States
| | - Melissa T. Miller
- Department of Chemistry and Biochemistry, University of California, San Diego, La Jolla, CA 92093-0358, United States
| | - Yuchen Cao
- Department of Chemistry and Biochemistry, University of California, San Diego, La Jolla, CA 92093-0358, United States
| | - Seth M. Cohen
- Department of Chemistry and Biochemistry, University of California, San Diego, La Jolla, CA 92093-0358, United States
| |
Collapse
|
37
|
Gama S, Gil M, Gano L, Farkas E, Amélia Santos M. Combined chelation of bi-functional bis-hydroxypiridinone and mono-hydroxypiridinone: Synthesis, solution and in vivo evaluation. J Inorg Biochem 2009; 103:288-98. [DOI: 10.1016/j.jinorgbio.2008.10.020] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2008] [Revised: 10/22/2008] [Accepted: 10/28/2008] [Indexed: 10/21/2022]
|
38
|
Gama S, Dron P, Chaves S, Farkas E, Santos MA. A bis(3-hydroxy-4-pyridinone)-EDTA derivative as a strong chelator for M3+ hard metal ions: complexation ability and selectivity. Dalton Trans 2009:6141-50. [DOI: 10.1039/b904950a] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
|
39
|
Grazina R, Gano L, Sebestík J, Amelia Santos M. New tripodal hydroxypyridinone based chelating agents for Fe(III), Al(III) and Ga(III): Synthesis, physico-chemical properties and bioevaluation. J Inorg Biochem 2008; 103:262-73. [PMID: 19062099 DOI: 10.1016/j.jinorgbio.2008.10.014] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2008] [Revised: 10/14/2008] [Accepted: 10/16/2008] [Indexed: 10/21/2022]
Abstract
Two new tris-hydroxypyridinone based compounds (KEMPPr(3,4-HP)(3) and KEMPBu(3,4-HP)(3)) have been developed and studied as strong sequestering agents for iron and the group III of metal ions, aimed as potential pharmacological applications on metal-chelation therapy. Their structure is based on the KEMP acid scaffold to which three 3-hydroxy-4-pyridinone chelating moieties are attached via two different size spacers. After the preparation and characterization of the compounds their physico-chemical properties were studied, in relation with their metal binding affinity and lipophilicity. The KEMPPr(3,4-HP)(3) ligand was also bioassayed to evaluate its in vivo metal sequestering capacity from most organs using an animal model overload with (67)Ga. These studies showed that, for both in solution and in vivo conditions, the compounds have higher metal chelating efficacy than Deferriprone, the commercially available iron chelator in medical application, thus some perspectives are envisaged as potential pharmaceutical drug candidates for chelating therapy.
Collapse
Affiliation(s)
- Raquel Grazina
- Centro Química Estrutural, Instituto Superior Técnico-UTL, Av. Rovisco Pais, 1049-001 Lisboa, Portugal
| | | | | | | |
Collapse
|
40
|
Nurchi VM, Pivetta T, Lachowicz JI, Crisponi G. Effect of substituents on complex stability aimed at designing new iron(III) and aluminum(III) chelators. J Inorg Biochem 2008; 103:227-36. [PMID: 19036454 DOI: 10.1016/j.jinorgbio.2008.10.011] [Citation(s) in RCA: 53] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2008] [Revised: 10/09/2008] [Accepted: 10/10/2008] [Indexed: 11/26/2022]
Abstract
The solution equilibria of iron(III) and aluminum(III) with two classes of hard ligands (catechol, salicylic acid and their nitro-derivatives) have been reliably studied by potentiometric, spectrophotometric and NMR spectroscopy. The effect of the nitro substituent on the binding properties of catechol and salicylic acid has been examined thoroughly. The inductive and resonance properties of the substituent that, as expected, lower the basicity of the phenolic and carboxylic groups, lead to a general decrease in both protonation and complex formation constants. This decrease causes an increase in pM of between 0.2 and 1.1pM units for the nitro-substituted salicylates and of about 4 units for 4-nitrocatechol, with a significantly higher chelating efficacy. The influence of the substituent on catechol and salicylic acid is discussed in detail on the basis of conditional constants at pH 7.4.
Collapse
Affiliation(s)
- Valeria Marina Nurchi
- Dipartimento di Scienze Chimiche, Centro Interdipartimentale per lo Studio dei Metalli in Medicina, Cittadella Universitaria, 09042 Monserrato-Cagliari, Italy
| | | | | | | |
Collapse
|
41
|
Crisponi G, Nurchi VM, Pivetta T, Gałęzowska J, Gumienna-Kontecka E, Bailly T, Burgada R, Kozłowski H. Towards a new attenuating compound: A potentiometric, spectrophotometric and NMR equilibrium study on Fe(III), Al(III) and a new tetradentate mixed bisphosphonate–hydroxypyridinonate ligand. J Inorg Biochem 2008; 102:1486-94. [DOI: 10.1016/j.jinorgbio.2008.01.010] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2007] [Revised: 01/09/2008] [Accepted: 01/14/2008] [Indexed: 11/28/2022]
|
42
|
Seitz M, Raymond KN. Efficient Route to Highly Water-Soluble Aromatic Cyclic Hydroxamic Acid Ligands. European J Org Chem 2008. [DOI: 10.1002/ejoc.200800147] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
|
43
|
|
44
|
Recent developments on 3-hydroxy-4-pyridinones with respect to their clinical applications. Coord Chem Rev 2008. [DOI: 10.1016/j.ccr.2008.01.033] [Citation(s) in RCA: 47] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
|
45
|
Chaves S, Gil M, Canário S, Jelic R, Romão MJ, Trincão J, Herdtweck E, Sousa J, Diniz C, Fresco P, Santos MA. Biologically relevant O,S-donor compounds. Synthesis, molybdenum complexation and xanthine oxidase inhibition. Dalton Trans 2008:1773-82. [DOI: 10.1039/b717172b] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
|
46
|
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]
|
47
|
Santos MA, Gama S, Pessoa JC, Oliveira MC, Tóth I, Farkas E. Complexation of Molybdenum(VI) with Bis(3-hydroxy-4-pyridinone)amino Acid Derivatives. Eur J Inorg Chem 2007. [DOI: 10.1002/ejic.200601088] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
|
48
|
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.
Collapse
Affiliation(s)
- Sumathi Chittamuru
- Department of Chemistry and Biochemistry, MSC 3C, New Mexico State University, Las Cruces, NM 88003-8001
| | | | | | | | | |
Collapse
|
49
|
Barta CA, Sachs-Barrable K, Jia J, Thompson KH, Wasan KM, Orvig C. Lanthanide containing compounds for therapeutic care in bone resorption disorders. Dalton Trans 2007:5019-30. [DOI: 10.1039/b705123a] [Citation(s) in RCA: 79] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
|
50
|
Thompson KH, Barta CA, Orvig C. Metal complexes of maltol and close analogues in medicinal inorganic chemistry. Chem Soc Rev 2006; 35:545-56. [PMID: 16729148 DOI: 10.1039/b416256k] [Citation(s) in RCA: 105] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Abstract
The family of hydroxypyrones and close congeners, the hydroxypyridinones, is a particularly versatile class of ligands. The most widely investigated for medicinal applications are the 3-hydroxy-4-pyrones and the 1,2- 3,2- and 3,4-hydroxypyridinones. Key features of these ligands are: a six-membered ring, with a ring N or O atom either ortho or para to a ketone group, and two ortho exocyclic oxygen atoms. Readily functionalizable, the hydroxypyrones and hydroxypyridinones allow one to achieve a range of di- and trivalent metallocomplex stabilities and can include tissue or molecular targeting features by design. Research over the past several decades has greatly expanded the array of ligands that are the subject of this critical review. Ligand applications as diverse as iron removal or supplementation, contrast agents in imaging applications, and mobilization of undesirable excess metal ions will be surveyed herein.
Collapse
Affiliation(s)
- Katherine H Thompson
- Medicinal Inorganic Chemistry Group, Chemistry Department, University of British Columbia, Vancouver, BC, Canada V6T 1Z1.
| | | | | |
Collapse
|