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Woods JJ, Cosby AG, Wacker JN, Aguirre Quintana LM, Peterson A, Minasian SG, Abergel RJ. Macrocyclic 1,2-Hydroxypyridinone-Based Chelators as Potential Ligands for Thorium-227 and Zirconium-89 Radiopharmaceuticals. Inorg Chem 2023; 62:20721-20732. [PMID: 37590371 DOI: 10.1021/acs.inorgchem.3c02164] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/19/2023]
Abstract
Thorium-227 (227Th) is an α-emitting radionuclide that has shown preclinical and clinical promise for use in targeted α-therapy (TAT), a type of molecular radiopharmaceutical treatment that harnesses high energy α particles to eradicate cancerous lesions. Despite these initial successes, there still exists a need for bifunctional chelators that can stably bind thorium in vivo. Toward this goal, we have prepared two macrocyclic chelators bearing 1,2-hydroxypyridinone groups. Both chelators can be synthesized in less than six steps from readily available starting materials, which is an advantage over currently available platforms. The complex formation constants (log βmlh) of these ligands with Zr4+ and Th4+, measured by spectrophotometric titrations, are greater than 34 for both chelators, indicating the formation of exceedingly stable complexes. Radiolabeling studies were performed to show that these ligands can bind [227Th]Th4+ at concentrations as low as 10-6 M, and serum stability experiments demonstrate the high kinetic stability of the formed complexes under biological conditions. Identical experiments with zirconium-89 (89Zr), a positron-emitting radioisotope used for positron emission tomography (PET) imaging, demonstrate that these chelators can also effectively bind Zr4+ with high thermodynamic and kinetic stability. Collectively, the data reported herein highlight the suitability of these ligands for use in 89Zr/227Th paired radioimmunotheranostics.
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Affiliation(s)
- Joshua J Woods
- Chemical Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
| | - Alexia G Cosby
- Chemical Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
| | - Jennifer N Wacker
- Chemical Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
| | - Luis M Aguirre Quintana
- Chemical Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
| | - Appie Peterson
- Chemical Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
| | - Stefan G Minasian
- Chemical Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
| | - Rebecca J Abergel
- Chemical Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
- Nuclear Engineering, University of California Berkeley, Berkeley, California 94720, United States
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Amoiridis A, Papanikolaou M, Vlasiou M, Bandeira NAG, Miras HN, Kabanos T, Keramidas A. Design and Modulation of Selectivity toward Vanadium(V) and Uranium(VI) Ions: Coordination Properties and Affinity of Hydroxylamino-Triazine Siderophores. Inorg Chem 2023. [PMID: 38018803 DOI: 10.1021/acs.inorgchem.3c02678] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2023]
Abstract
Based on the strong binding and high selectivity properties of 2,6-bis[hydroxy(methyl)amino]-4-morpholino-1,3,5-triazine (H2bihyat) for [UVIO2]2+, novel binucleating ligands (BLs) N,N',N″,N‴-((1,4-phenylenebis(oxy))bis(1,3,5-triazine-6,2,4-triyl))tetrakis(N-methylhydroxylamine) (H4qtn), N1,N4-bis(4,6-bis(hydroxy(methyl)amino)-1,3,5-triazin-2-yl)benzene-1,4-diamine (H4pdl), and N1,N2-bis(4,6-bis(hydroxy(methyl)amino)-1,3,5-triazin-2-yl)ethane-1,2-diamine (H4enl) were synthesized. Binuclear complexes formed by coordination of hard metal ions with H4qtn are thermodynamically more stable than their mononuclear analogues with H2bihyat due to the increase in entropy accompanying the formation of more chelate rings. Reaction of either H4qtn or H4pdl or H4enl with [UVIO2]2+ and [VVO2]+ resulted in the isolation of the binuclear complexes [(UVIO2)2(μ-qtn)(H2O)4] (1), [(VVO2)2(μ-qtn)][PPh4]2[PPh4] (2), [(UVIO2)2(μ-pdl)(H2O)2(MeOH)2] (3), [(VVO2)2(μ-pdl)][PPh4]2 (4), [(UVIO2)2(μ-enl)(H2O)4] (5), and [(VVO2)2(μ-enl)][PPh4]2 (6). The binuclear complexes 1-6 were characterized by single-crystal X-ray diffraction analysis in solid state and by NMR and ESI-MS in solution. The comparison of the coordination ability of the BLs with either pyridine-2,6-dicarboxylic acid (H2dipic) or H2bihyat or CO32- toward [UVIO2]2+ and [VVO2]+ was investigated by NMR and UV-vis spectroscopies and DFT theoretical calculations, revealing a superior performance of BLs. The selectivity of the BLs for [UVIO2]2+ over [VVO2]+ is decreased compared to that of H2bihyat but increases considerably at pH > 9 values. Formation of the mixed-metal binuclear species [UVIO2(μ-O)VVO2] influences the selectivity and dynamics of the reaction of H4qtn for [UVIO2]2+ and [VVO2]+ in aqueous solution. The results of this study provide crucial information for the ligand design and the development of stronger and more selective systems.
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Affiliation(s)
| | | | - Manolis Vlasiou
- School of Veterinary Medicine, University of Nicosia, Nicosia 2414, Cyprus
| | - Nuno A G Bandeira
- Biosystems and Integrative Sciences Institute (BioISI) - Departamento de Química e Bioquímica, Faculdade de Ciências Universidade de Lisboa, 8.5.53 - C8 Campo Grande, Lisboa 1749-016, Portugal
| | | | - Themistoklis Kabanos
- Department of Chemistry, Section of Inorganic and Analytical Chemistry, University of Ioannina, Ioannina 45110, Greece
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Ghosh TK, Maity S, Ghosh S, Gomila RM, Frontera A, Ghosh A. Role of Redox-Inactive Metal Ions in Modulating the Reduction Potential of Uranyl Schiff Base Complexes: Detailed Experimental and Theoretical Studies. Inorg Chem 2022; 61:7130-7142. [PMID: 35467851 DOI: 10.1021/acs.inorgchem.2c00645] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A mononuclear uranyl complex, [UO2L] (1), has been synthesized with the ligand N,N'-bis(3-methoxy-2-hydroxybenzylidene)-1,6-diamino-3-azahexane (H2L). The complex showed a reversible U(VI)/U(V) redox couple in cyclic voltammetric measurements. The reduction potential of this couple showed a positive shift upon the addition of redox-inactive alkali- and alkaline-earth Lewis acidic metal ions (Li+, Na+, K+, Ca2+, Sr2+, and Ba2+) to an acetonitrile solution of complex 1. The positive shift of the reduction potential has been explained on the basis of the Lewis acidity and internal electric-field effect of the respective metal ions. The bimetallic complexes [UO2LLi(NO3)] (2), [UO2LNa(BF4)]2 (3), [UO2LK(PF6)]2 (4), [(UO2L)2Ca]·(ClO4)2·CH3CN (5), [(UO2L)2Sr(H2O)2]·(ClO4)2·CH3CN (6), and [(UO2L)2Ba(ClO4)]·(ClO4) (7) have also been isolated in the solid state by reacting complex 1 with the corresponding metal ions and characterized by single-crystal X-ray diffraction. Density functional theory calculations of the optimized [UO2LM]n+ complexes have been used to rationalize the experimental reduction and electric-field potentials imposed by the non-redox-active cations.
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Affiliation(s)
- Tanmoy Kumar Ghosh
- Department of Chemistry, University College of Science, University of Calcutta, 92 APC Road, Kolkata 700009, India
| | - Souvik Maity
- Department of Chemistry, University College of Science, University of Calcutta, 92 APC Road, Kolkata 700009, India
| | - Soumavo Ghosh
- Department of Chemistry, University College of Science, University of Calcutta, 92 APC Road, Kolkata 700009, India
| | - Rosa M Gomila
- Departament de Química, Universitat de les Illes Balears, Carta de Valldemossa km 7.5, 07122 Palma de Mallorca, Baleares, Spain
| | - Antonio Frontera
- Departament de Química, Universitat de les Illes Balears, Carta de Valldemossa km 7.5, 07122 Palma de Mallorca, Baleares, Spain
| | - Ashutosh Ghosh
- Department of Chemistry, University College of Science, University of Calcutta, 92 APC Road, Kolkata 700009, India.,Rani Rashmoni Green University, Tarakeswar, Hooghly 712410, West Bengal, India
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Wang X, Shi C, Guan J, Chen Y, Xu Y, Diwu J, Wang S. The development of molecular and nano actinide decorporation agents. CHINESE CHEM LETT 2022. [DOI: 10.1016/j.cclet.2022.04.017] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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Woods JJ, Unnerstall R, Hasson A, Abou DS, Radchenko V, Thorek DLJ, Wilson JJ. Stable Chelation of the Uranyl Ion by Acyclic Hexadentate Ligands: Potential Applications for 230U Targeted α-Therapy. Inorg Chem 2022; 61:3337-3350. [PMID: 35137587 PMCID: PMC9382226 DOI: 10.1021/acs.inorgchem.1c03972] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Uranium-230 is an α-emitting radionuclide with favorable properties for use in targeted α-therapy (TAT), a type of nuclear medicine that harnesses α particles to eradicate cancer cells. To successfully implement this radionuclide for TAT, a bifunctional chelator that can stably bind uranium in vivo is required. To address this need, we investigated the acyclic ligands H2dedpa, H2CHXdedpa, H2hox, and H2CHXhox as uranium chelators. The stability constants of these ligands with UO22+ were measured via spectrophotometric titrations, revealing log βML values that are greater than 18 and 26 for the "pa" and "hox" chelators, respectively, signifying that the resulting complexes are exceedingly stable. In addition, the UO22+ complexes were structurally characterized by NMR spectroscopy and X-ray crystallography. Crystallographic studies reveal that all six donor atoms of the four ligands span the equatorial plane of the UO22+ ion, giving rise to coordinatively saturated complexes that exclude solvent molecules. To further understand the enhanced thermodynamic stabilities of the "hox" chelators over the "pa" chelators, density functional theory (DFT) calculations were employed. The use of the quantum theory of atoms in molecules revealed that the extent of covalency between all four ligands and UO22+ was similar. Analysis of the DFT-computed ligand strain energy suggested that this factor was the major driving force for the higher thermodynamic stability of the "hox" ligands. To assess the suitability of these ligands for use with 230U TAT in vivo, their kinetic stabilities were probed by challenging the UO22+ complexes with the bone model hydroxyapatite (HAP) and human plasma. All four complexes were >95% stable in human plasma for 14 days, whereas in the presence of HAP, only the complexes of H2CHXdedpa and H2hox remained >80% intact over the same period. As a final validation of the suitability of these ligands for radiotherapy applications, the in vivo biodistribution of their UO22+ complexes was determined in mice in comparison to unchelated [UO2(NO3)2]. In contrast to [UO2(NO3)2], which displays significant bone uptake, all four ligand complexes do not accumulate in the skeletal system, indicating that they remain stable in vivo. Collectively, these studies suggest that the equatorial-spanning ligands H2dedpa, H2CHXdedpa, H2hox, and H2CHXhox are highly promising candidates for use in 230U TAT.
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Affiliation(s)
- Joshua J. Woods
- Department of Chemistry and Chemical Biology, Cornell University, Ithaca, NY, 14853, USA
- Robert F. Smith School for Chemical and Biomolecular Engineering, Cornell University, Ithaca, NY, 14853, USA
| | - Ryan Unnerstall
- Department of Radiology, Washington University School of Medicine, St. Louis, MO, 63110, USA
- Program in Quantitative Molecular Therapeutics, Washington University School of Medicine, St. Louis, MO, 63110, USA
| | - Abbie Hasson
- Program in Quantitative Molecular Therapeutics, Washington University School of Medicine, St. Louis, MO, 63110, USA
- Department of Biomedical Engineering, Washington University, St. Louis, MO, 63110, USA
| | - Diane S. Abou
- Department of Radiology, Washington University School of Medicine, St. Louis, MO, 63110, USA
- Program in Quantitative Molecular Therapeutics, Washington University School of Medicine, St. Louis, MO, 63110, USA
| | - Valery Radchenko
- Life Science Division, TRIUMF, Vancouver, BC Canada
- Chemistry Department, University of British Columbia, Vancouver, BC, BC V6T 2A3, Canada
| | - Daniel L. J. Thorek
- Department of Radiology, Washington University School of Medicine, St. Louis, MO, 63110, USA
- Program in Quantitative Molecular Therapeutics, Washington University School of Medicine, St. Louis, MO, 63110, USA
- Department of Biomedical Engineering, Washington University, St. Louis, MO, 63110, USA
| | - Justin J. Wilson
- Department of Chemistry and Chemical Biology, Cornell University, Ithaca, NY, 14853, USA
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Zhang Q, Jin B, Zheng T, Tang X, Guo Z, Peng R. Hexadentate β-Dicarbonyl(bis-catecholamine) Ligands for Efficient Uranyl Cation Decorporation: Thermodynamic and Antioxidant Activity Studies. Inorg Chem 2019; 58:14626-14634. [PMID: 31613591 DOI: 10.1021/acs.inorgchem.9b02306] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The special linear dioxo cation structure of the uranyl cation, which relegates ligand coordination to an equatorial plane perpendicular to the O═U═O vector, poses an unusual challenge for the rational design of efficient chelating agents. Therefore, the planar hexadentate ligand rational design employed in this work incorporates two bidentate catecholamine (CAM) chelating moieties and a flexible linker with a β-dicarbonyl chelating moiety (β-dicarbonyl(CAM)2 ligands). The solution thermodynamics of β-dicarbonyl(CAM)2 with a uranyl cation was investigated by potentiometric and spectrophotometric titrations. The results demonstrated that the pUO22+ values are significantly higher than for the previously reported TMA(2Li-1,2-HOPO)2, and efficient chelation of the uranyl cation was realized by the planar hexadentate β-dicarbonyl(CAM)2. The efficient chelating ability of β-dicarbonyl(CAM)2 was attributed to the presence of the more flexible β-dicarbonyl chelating linker and planar hexadentate structure, which favors the geometric arrangement between ligand and uranyl coordinative preference. Meanwhile, β-dicarbonyl(CAM)2 also exhibits higher antiradical efficiency in comparison to butylated hydroxyanisole. These results indicated that β-dicarbonyl(CAM)2 has potential application prospects as a chelating agent for efficient chelation of a uranyl cation.
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Affiliation(s)
- Qingchun Zhang
- State Key Laboratory of Environment-friendly Energy Materials , Southwest University of Science and Technology , Mianyang 621010 , People's Republic of China
| | - Bo Jin
- State Key Laboratory of Environment-friendly Energy Materials , Southwest University of Science and Technology , Mianyang 621010 , People's Republic of China
| | - Tian Zheng
- State Key Laboratory of Environment-friendly Energy Materials , Southwest University of Science and Technology , Mianyang 621010 , People's Republic of China
| | - Xingyan Tang
- Sichuan Research Center of New Materials, Institute of Chemical Materials , China Academy of Engineering Physics , Chengdu 610200 , People's Republic of China
| | - Zhicheng Guo
- School of National Defense Science and Technology , Southwest University of Science and Technology , Mianyang 621010 , People's Republic of China
| | - Rufang Peng
- State Key Laboratory of Environment-friendly Energy Materials , Southwest University of Science and Technology , Mianyang 621010 , People's Republic of China
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Wang X, Dai X, Shi C, Wan J, Silver MA, Zhang L, Chen L, Yi X, Chen B, Zhang D, Yang K, Diwu J, Wang J, Xu Y, Zhou R, Chai Z, Wang S. A 3,2-Hydroxypyridinone-based Decorporation Agent that Removes Uranium from Bones In Vivo. Nat Commun 2019; 10:2570. [PMID: 31239437 PMCID: PMC6592941 DOI: 10.1038/s41467-019-10276-z] [Citation(s) in RCA: 72] [Impact Index Per Article: 14.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2018] [Accepted: 04/30/2019] [Indexed: 01/12/2023] Open
Abstract
Searching for actinide decorporation agents with advantages of high decorporation efficiency, minimal biological toxicity, and high oral efficiency is crucial for nuclear safety and the sustainable development of nuclear energy. Removing actinides deposited in bones after intake is one of the most significant challenges remaining in this field because of the instantaneous formation of highly stable actinide phosphate complexes upon contact with hydroxyapatite. Here we report a hydroxypyridinone-based ligand (5LIO-1-Cm-3,2-HOPO) exhibiting stronger affinity for U(VI) compared with the reported tetradentate hydroxypyridinone ligands. This is further revealed by the first principles calculation analysis on bonding between the ligand and uranium. Both in vitro uranium removal assay and in vivo decorporation experiments with mice show that 5LIO-1-Cm-3,2-HOPO can remove uranium from kidneys and bones with high efficiencies, while the decorporation efficiency is nearly independent of the treatment time. Moreover, this ligand shows a high oral decorporation efficiency, making it attractive for practical applications.
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Affiliation(s)
- Xiaomei Wang
- State Key Laboratory of Radiation Medicine and Protection, School for Radiological and Interdisciplinary Sciences (RAD-X) and Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education Institutions, Soochow University, Suzhou, 215123, China.,Shanghai Institute of Applied Physics and Key Laboratory of Nuclear Radiation and Nuclear Energy Technology, University of Chinese Academy of Sciences, Shanghai, 201800, China
| | - Xing Dai
- State Key Laboratory of Radiation Medicine and Protection, School for Radiological and Interdisciplinary Sciences (RAD-X) and Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education Institutions, Soochow University, Suzhou, 215123, China
| | - Cen Shi
- State Key Laboratory of Radiation Medicine and Protection, School for Radiological and Interdisciplinary Sciences (RAD-X) and Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education Institutions, Soochow University, Suzhou, 215123, China
| | - Jianmei Wan
- State Key Laboratory of Radiation Medicine and Protection, School for Radiological and Interdisciplinary Sciences (RAD-X) and Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education Institutions, Soochow University, Suzhou, 215123, China
| | - Mark A Silver
- State Key Laboratory of Radiation Medicine and Protection, School for Radiological and Interdisciplinary Sciences (RAD-X) and Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education Institutions, Soochow University, Suzhou, 215123, China
| | - Linjuan Zhang
- Shanghai Institute of Applied Physics and Key Laboratory of Nuclear Radiation and Nuclear Energy Technology, University of Chinese Academy of Sciences, Shanghai, 201800, China
| | - Lanhua Chen
- State Key Laboratory of Radiation Medicine and Protection, School for Radiological and Interdisciplinary Sciences (RAD-X) and Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education Institutions, Soochow University, Suzhou, 215123, China
| | - Xuan Yi
- State Key Laboratory of Radiation Medicine and Protection, School for Radiological and Interdisciplinary Sciences (RAD-X) and Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education Institutions, Soochow University, Suzhou, 215123, China
| | - Bizheng Chen
- State Key Laboratory of Radiation Medicine and Protection, School for Radiological and Interdisciplinary Sciences (RAD-X) and Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education Institutions, Soochow University, Suzhou, 215123, China
| | - Duo Zhang
- State Key Laboratory of Radiation Medicine and Protection, School for Radiological and Interdisciplinary Sciences (RAD-X) and Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education Institutions, Soochow University, Suzhou, 215123, China
| | - Kai Yang
- State Key Laboratory of Radiation Medicine and Protection, School for Radiological and Interdisciplinary Sciences (RAD-X) and Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education Institutions, Soochow University, Suzhou, 215123, China
| | - Juan Diwu
- State Key Laboratory of Radiation Medicine and Protection, School for Radiological and Interdisciplinary Sciences (RAD-X) and Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education Institutions, Soochow University, Suzhou, 215123, China.
| | - Jianqiang Wang
- Shanghai Institute of Applied Physics and Key Laboratory of Nuclear Radiation and Nuclear Energy Technology, University of Chinese Academy of Sciences, Shanghai, 201800, China
| | - Yujie Xu
- State Key Laboratory of Radiation Medicine and Protection, School for Radiological and Interdisciplinary Sciences (RAD-X) and Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education Institutions, Soochow University, Suzhou, 215123, China
| | - Ruhong Zhou
- State Key Laboratory of Radiation Medicine and Protection, School for Radiological and Interdisciplinary Sciences (RAD-X) and Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education Institutions, Soochow University, Suzhou, 215123, China. .,Computational Biology Center, IBM Thomas J Watson Research Center, Yorktown Heights, NY 13 10598; Department of Chemistry, Columbia University, New York, NY, 10027, United States.
| | - Zhifang Chai
- State Key Laboratory of Radiation Medicine and Protection, School for Radiological and Interdisciplinary Sciences (RAD-X) and Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education Institutions, Soochow University, Suzhou, 215123, China
| | - Shuao Wang
- State Key Laboratory of Radiation Medicine and Protection, School for Radiological and Interdisciplinary Sciences (RAD-X) and Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education Institutions, Soochow University, Suzhou, 215123, China.
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Klamm BE, Windorff CJ, Celis-Barros C, Marsh ML, Albrecht-Schmitt TE. Synthesis, Spectroscopy, and Theoretical Details of Uranyl Schiff-Base Coordination Complexes. Inorg Chem 2019; 59:23-31. [DOI: 10.1021/acs.inorgchem.9b00477] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Bonnie E. Klamm
- Department of Chemistry and Biochemistry, Florida State University, 95 Chieftan Way, Room 118 DLC, Tallahassee, Florida 32306, United States
| | - Cory J. Windorff
- Department of Chemistry and Biochemistry, Florida State University, 95 Chieftan Way, Room 118 DLC, Tallahassee, Florida 32306, United States
| | - Cristian Celis-Barros
- Department of Chemistry and Biochemistry, Florida State University, 95 Chieftan Way, Room 118 DLC, Tallahassee, Florida 32306, United States
| | - Matthew L. Marsh
- Department of Chemistry and Biochemistry, Florida State University, 95 Chieftan Way, Room 118 DLC, Tallahassee, Florida 32306, United States
| | - Thomas E. Albrecht-Schmitt
- Department of Chemistry and Biochemistry, Florida State University, 95 Chieftan Way, Room 118 DLC, Tallahassee, Florida 32306, United States
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Cilibrizzi A, Abbate V, Chen YL, Ma Y, Zhou T, Hider RC. Hydroxypyridinone Journey into Metal Chelation. Chem Rev 2018; 118:7657-7701. [DOI: 10.1021/acs.chemrev.8b00254] [Citation(s) in RCA: 45] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Agostino Cilibrizzi
- Institute of Pharmaceutical Science, King’s College London, Stamford Street, London SE1 9NH, United Kingdom
| | - Vincenzo Abbate
- Institute of Pharmaceutical Science, King’s College London, Stamford Street, London SE1 9NH, United Kingdom
- King’s Forensics, School of Population Health & Environmental Sciences, King’s College London, Franklin-Wilkins Building, 150 Stamford Street, London SE1 9NH, United Kingdom
| | - Yu-Lin Chen
- Institute of Pharmaceutical Science, King’s College London, Stamford Street, London SE1 9NH, United Kingdom
| | - Yongmin Ma
- College of Pharmaceutical Science, Zhejiang Chinese Medical University, Hangzhou, P. R. China 311402
| | - Tao Zhou
- Department of Applied Chemistry, School of Food Science and Biotechnology, Zhejiang Gongshang University, Hangzhou, P. R. China 310018
| | - Robert C. Hider
- Institute of Pharmaceutical Science, King’s College London, Stamford Street, London SE1 9NH, United Kingdom
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Zhao X, Zhang D, Yu R, Chen S, Zhao D. Tetrahydrosalen Uranyl(VI) Complexes: Crystal Structures and Solution Binding Study. Eur J Inorg Chem 2018. [DOI: 10.1002/ejic.201701401] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Xiao Zhao
- Beijing National Laboratory for Molecular Sciences (BNLMS); Department of Applied Chemistry; Centre for Soft Matter Science and Engineering; Key Lab of Polymer Chemistry & Physics of Ministry of Education; College of Chemistry; Peking University; 100871 Beijing P. R. China
| | - Di Zhang
- Beijing National Laboratory for Molecular Sciences (BNLMS); Department of Applied Chemistry; Centre for Soft Matter Science and Engineering; Key Lab of Polymer Chemistry & Physics of Ministry of Education; College of Chemistry; Peking University; 100871 Beijing P. R. China
| | - Ren Yu
- Beijing Research Institute of Chemical Engineering and Metallurgy; 101149 Beijing P. R. China
| | - Shusen Chen
- Beijing Research Institute of Chemical Engineering and Metallurgy; 101149 Beijing P. R. China
| | - Dahui Zhao
- Beijing National Laboratory for Molecular Sciences (BNLMS); Department of Applied Chemistry; Centre for Soft Matter Science and Engineering; Key Lab of Polymer Chemistry & Physics of Ministry of Education; College of Chemistry; Peking University; 100871 Beijing P. R. China
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12
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Novel enterobactin analogues as potential therapeutic chelating agents: Synthesis, thermodynamic and antioxidant studies. Sci Rep 2016; 6:34024. [PMID: 27671769 PMCID: PMC5037427 DOI: 10.1038/srep34024] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2016] [Accepted: 09/06/2016] [Indexed: 11/21/2022] Open
Abstract
A series of novel hexadentate enterobactin analogues, which contain three catechol chelating moieties attached to different molecular scaffolds with flexible alkyl chain lengths, were prepared. The solution thermodynamic stabilities of the complexes with uranyl, ferric(III), and zinc(II) ions were then investigated. The hexadentate ligands demonstrate effective binding ability to uranyl ion, and the average uranyl affinities are two orders of magnitude higher than 2,3-dihydroxy-N1,N4-bis[(1,2-hydroxypyridinone-6-carboxamide)ethyl]terephthalamide [TMA(2Li-1,2-HOPO)2] ligand with similar denticity. The high affinity of hexadentate ligands could be due to the presence of the flexible scaffold, which favors the geometric agreement between the ligand and the uranyl coordination preference. The hexadentate ligands also exhibit higher antiradical efficiency than butylated hydroxyanisole (BHA). These results provide a basis for further studies on the potential applications of hexadentate ligands as therapeutic chelating agents.
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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.
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Vats BG, Kannan S, Parvathi K, Maity D, Drew M. Steric effects in complexes of diphenyl(2-pyridyl)phosphine oxide with the uranyl ion. Synthetic, structural and theoretical studies. Polyhedron 2015. [DOI: 10.1016/j.poly.2014.12.047] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Vats B, Kannan S, Pius I, Noronha D, Maity D, Drew M. Synthetic, structural, extraction and theoretical studies of uranyl nitrate dithio-diglycolamide compounds. Polyhedron 2014. [DOI: 10.1016/j.poly.2014.03.015] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Das D, Kannan S, Maity DK, Drew MGB. Steric effects on uranyl complexation: synthetic, structural, and theoretical studies of carbamoyl pyrazole compounds of the uranyl(VI) ion. Inorg Chem 2012; 51:4869-76. [PMID: 22471744 DOI: 10.1021/ic300398a] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
New bifunctional pyrazole based ligands of the type [C(3)HR(2)N(2)CONR'] (where R = H or CH(3); R' = CH(3), C(2)H(5), or (i)C(3)H(7)) were prepared and characterized. The coordination chemistry of these ligands with uranyl nitrate and uranyl bis(dibenzoyl methanate) was studied with infrared (IR), (1)H NMR, electrospray-mass spectrometry (ES-MS), elemental analysis, and single crystal X-ray diffraction methods. The structure of compound [UO(2)(NO(3))(2)(C(3)H(3)N(2)CON{C(2)H(5)}(2))] (2) shows that the uranium(VI) ion is surrounded by one nitrogen atom and seven oxygen atoms in a hexagonal bipyramidal geometry with the ligand acting as a bidentate chelating ligand and bonds through both the carbamoyl oxygen and pyrazolyl nitrogen atoms. In the structure of [UO(2)(NO(3))(2)(H(2)O)(2)(C(5)H(7)N(2)CON {C(2)H(5)}(2))(2)], (5) the pyrazole ligand acts as a second sphere ligand and hydrogen bonds to the water molecules through carbamoyl oxygen and pyrazolyl nitrogen atoms. The structure of [UO(2)(DBM)(2)C(3)H(3)N(2)CON{C(2)H(5)}(2)] (8) (where DBM = C(6)H(5)COCHCOC(6)H(5)) shows that the pyrazole ligand acts as a monodentate ligand and bonds through the carbamoyl oxygen to the uranyl group. The ES-MS spectra of 2 and 8 show that the ligand is similarly bonded to the metal ion in solution. Ab initio quantum chemical studies show that the steric effect plays the key role in complexation behavior.
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Affiliation(s)
- Debasish Das
- Fuel Reprocessing Division, Bhabha Atomic Research Centre, Mumbai-400085, India
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Szigethy G, Raymond KN. Hexadentate Terephthalamide(bis-hydroxypyridinone) Ligands for Uranyl Chelation: Structural and Thermodynamic Consequences of Ligand Variation. J Am Chem Soc 2011; 133:7942-56. [DOI: 10.1021/ja201511u] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Géza Szigethy
- Department of Chemistry, University of California at Berkeley, Berkeley, California 94720-1460, United States
- Chemical Sciences Division, Glenn T. Seaborg Center, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
| | - Kenneth N. Raymond
- Department of Chemistry, University of California at Berkeley, Berkeley, California 94720-1460, United States
- Chemical Sciences Division, Glenn T. Seaborg Center, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
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Ni C, Shuh DK, Raymond KN. Uranyl sequestration: synthesis and structural characterization of uranyl complexes with a tetradentate methylterephthalamide ligand. Chem Commun (Camb) 2011; 47:6392-4. [DOI: 10.1039/c1cc11329a] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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