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ICHIMARU Y, IMAI M, FUJIOKA H, HIEDA Y, KOIKE T, KUROSAKI H, KATO K. Crystal Structure of [3-(1,4,7,10-Tetraazacyclododecan-1-yl)propan-1-amine]zinc(II) Bis(perchlorate), [Zn<sup>II</sup>L](ClO<sub>4</sub>)<sub>2</sub>. X-RAY STRUCTURE ANALYSIS ONLINE 2020. [DOI: 10.2116/xraystruct.36.43] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Affiliation(s)
| | | | - Haruto FUJIOKA
- Laboratory of Organic Medicinal Chemistry, Faculty of Pharmacy & Pharmaceutical Sciences, Fukuyama University
| | - Yuhzo HIEDA
- Laboratory of Organic Medicinal Chemistry, Faculty of Pharmacy & Pharmaceutical Sciences, Fukuyama University
| | - Tohru KOIKE
- Department of Functional Molecular Science, Institute of Biochemical & Health Sciences, Hiroshima University
| | | | - Koichi KATO
- College of Pharmacy, Kinjo Gakuin University
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Oukhatar F, Beyler M, Tripier R. Straightforward and mild deprotection methods of N-mono- and N,N-functionalised bisaminal cyclens. Tetrahedron 2015. [DOI: 10.1016/j.tet.2015.04.021] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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de la Reberdière A, Lachaud F, Chuburu F, Cadiou C, Lemercier G. Synthesis of a new family of protected 1,4,7,10-tetraazacyclododecane-1,4,7-triacetic acid derivatives with thioctic acid pending arms. Tetrahedron Lett 2012. [DOI: 10.1016/j.tetlet.2012.08.150] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Pouessel J, Le Bris N, Bencini A, Giorgi C, Valtancoli B, Tripier R. Glyphosate and ATP binding by mononuclear Zn(II) complexes with non-symmetric ditopic polyamine ligands. Dalton Trans 2012; 41:10521-32. [PMID: 22785253 DOI: 10.1039/c2dt31110k] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Binding of Zn(II) by the ditopic ligands L1py, L2py and L1para, composed of a cyclam unit linked to the linear polyamines 1,4,8,11-tetraazaundecane (L1py and L2para) and 1,4,7-triazaheptane (L2py) via a 2,6-dimethylpyridinyl (L1py and L2py) or a 1,4-dimethylbenzyl spacer (L2para), has been analyzed by means of potentiometric and (1)H and (13)C NMR measurements. All ligands form stable mononuclear Zn(II) complexes in a wide pH range, featuring the metal ion bound to the macrocyclic unit. The open-chain polyamine unit can easily bind several protons in aqueous solution affording protonated metal complexes at neutral and acidic pH values. These complexes behave as bifunctional receptors for the anionic substrates N-(phosphonomethyl)glycine (glyphosate or PMG) and ATP. Potentiometric, (1)H and (31)P NMR measurements show that the Zn(II) complex with L1py is the better receptor for both substrates, thanks to the simultaneous presence of a pyridine linker functionalized at its 2,6 positions and of a flexible linear tetraamine chain. In fact, these structural features allow a stronger interaction of PMG and ATP with both the protonated tetraamine moiety and the Zn(II)-cyclam core.
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Affiliation(s)
- Jacky Pouessel
- Université de Bretagne Occidentale, UMR-CNRS 6521, UFR Sciences et Techniques, 6 Avenue Victor Le Gorgeu, C.S. 93837, 29238 Brest Cedex 3, France
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Lönnberg TA, Helkearo M, Jancsó A, Gajda T. Mimics of small ribozymes utilizing a supramolecular scaffold. Dalton Trans 2012; 41:3328-38. [DOI: 10.1039/c2dt10193a] [Citation(s) in RCA: 15] [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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Pellico D, Gómez-Gallego M, Escudero R, Ramírez-López P, Oliván M, Sierra MA. C-Branched chiral (racemic) macrocyclic amino acids: structure of their Ni(ii), Zn(ii) and Cu(ii) complexes. Dalton Trans 2011; 40:9145-53. [DOI: 10.1039/c1dt10539f] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
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Delépine AS, Tripier R, Bernard H, Bris NL, Handel H. Selective mono-N-alkylation of triethylenetetraamine. A new versatile route to polylinear aza-ligands. Tetrahedron Lett 2009. [DOI: 10.1016/j.tetlet.2009.03.088] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Arturoni E, Bazzicalupi C, Bencini A, Caltagirone C, Danesi A, Garau A, Giorgi C, Lippolis V, Valtancoli B. New Bis-Cresol-Bridgedbis(1,4,7-Triazacyclononane) Ligand As Receptor for Metal Cations and Phosphate Anions. Inorg Chem 2008; 47:6551-63. [DOI: 10.1021/ic800549e] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Proton-sponge behaviour of new pendant armed cross-bridged bis-cyclens: Synthesis, NMR, X-ray, and potentiometric investigations. CR CHIM 2007. [DOI: 10.1016/j.crci.2007.03.016] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Heroux KJ, Woodin KS, Tranchemontagne DJ, Widger PCB, Southwick E, Wong EH, Weisman GR, Tomellini SA, Wadas TJ, Anderson CJ, Kassel S, Golen JA, Rheingold AL. The long and short of it: the influence of N-carboxyethyl versusN-carboxymethyl pendant arms on in vitro and in vivo behavior of copper complexes of cross-bridged tetraamine macrocycles. Dalton Trans 2007:2150-62. [PMID: 17514336 PMCID: PMC4289607 DOI: 10.1039/b702938a] [Citation(s) in RCA: 50] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A cross-bridged cyclam ligand bearing two N-carboxymethyl pendant arms (1) has been found to form a copper(II) complex that exhibits significantly improved biological behavior in recent research towards (64)Cu-based radiopharmaceuticals. Both the kinetic inertness and resistance to reduction of Cu-1 are believed to be relevant to its enhanced performance. To explore the influence of pendant arm length on these properties, new cross-bridged cyclam and cyclen ligands with longer N-carboxyethyl pendant arms, 2 and 4, and their respective copper(II) complexes have been synthesized. Both mono- as well as di-O-protonated forms of Cu-2 have also been isolated and structurally characterized. The spectral and structural properties of Cu-2 and Cu-4, their kinetic inertness in 5 M HCl, and electrochemical behavior have been obtained and compared to those of their N-carboxymethyl-armed homologs, Cu-1 and Cu-3. Only the cyclam-based Cu-1 and Cu-2 showed unusually high kinetic inertness towards acid decomplexation. While both of these complexes also exhibited quasi-reversible Cu(II)/Cu(I) reductions, Cu-2 is easier to reduce by a substantial margin of +400 mV, bringing it within the realm of physiological reductants. Similarly, of the cyclen-based complexes, Cu-4 is also easier to reduce than Cu-3 though both reductions are irreversible. Biodistribution studies of (64)Cu-labeled 2 and 4 were performed in Sprague Dawley rats. Despite comparable acid inertness to their shorter-armed congeners, both longer-armed ligand complexes have poorer bio-clearance properties. This inferior in vivo behavior may be a consequence of their higher reduction potentials.
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Affiliation(s)
- Katie J. Heroux
- Department of Chemistry, University of New Hampshire, Durham, New Hampshire, 03824, USA
| | - Katrina S. Woodin
- Department of Chemistry, University of New Hampshire, Durham, New Hampshire, 03824, USA
| | | | - Peter C. B. Widger
- Department of Chemistry, University of New Hampshire, Durham, New Hampshire, 03824, USA
| | - Evan Southwick
- Department of Chemistry, University of New Hampshire, Durham, New Hampshire, 03824, USA
| | - Edward H. Wong
- Department of Chemistry, University of New Hampshire, Durham, New Hampshire, 03824, USA
| | - Gary R. Weisman
- Department of Chemistry, University of New Hampshire, Durham, New Hampshire, 03824, USA
| | - Sterling A. Tomellini
- Department of Chemistry, University of New Hampshire, Durham, New Hampshire, 03824, USA
| | - Thaddeus J. Wadas
- Mallinckrodt Institute of Radiology, Washington University School of Medicine, St. Louis, Missouri, 63110, USA
| | - Carolyn J. Anderson
- Mallinckrodt Institute of Radiology, Washington University School of Medicine, St. Louis, Missouri, 63110, USA
| | - Scott Kassel
- Department of Chemistry and Biochemistry, University of California, San Diego, La Jolla, California, 92093, USA
| | - James A. Golen
- Department of Chemistry and Biochemistry, University of Massachusetts, Dartmouth, North Dartmouth, Massachusetts, 02747, USA
| | - Arnold L. Rheingold
- Department of Chemistry and Biochemistry, University of California, San Diego, La Jolla, California, 92093, USA
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Bazzicalupi C, Bencini A, Bianchi A, Borsari L, Danesi A, Giorgi C, Lodeiro C, Mariani P, Pina F, Santarelli S, Tamayo A, Valtancoli B. Basicity and coordination properties of a new phenanthroline-based bis-macrocyclic receptor. Dalton Trans 2006:4000-10. [PMID: 17028709 DOI: 10.1039/b603505a] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The synthesis and characterisation of the new macrocyclic ligand 6-methyl-2,6,10-triaza-[11]-12,25-phenathrolinophane (L1), which contains a triamine aliphatic chain linking the 2,9 positions of 1,10-phenanthroline and of its derivative L2, composed by two L1 moieties connected by an ethylenic bridge, are reported. Their basicity and coordination properties toward Cu(II), Zn(II), Cd(II), Pb(II) and Hg(II) have been studied by means of potentiometric and spectroscopic (UV-Vis, fluorescence emission) measurements in aqueous solutions. L1 forms 1:1 metal complexes in aqueous solutions, while L2 can give both mono- and dinuclear complexes. In the mononuclear L2 complexes the metal is sandwiched between the two cyclic moieties. The metal complexes with L1 and L2 do not display fluorescence emission, due to the presence of amine groups not involved in metal coordination. These amine groups can quench the excited fluorophore through an electron transfer process. The ability of the Zn(II) complexes with L1 and L2 to cleave the phosphate ester bond in the presence has been investigated by using bis(p-nitrophenyl)phosphate (BNPP) as substrate. The dinuclear complex with L2 shows a remarkable hydrolytic activity, due to the simultaneous presence within this complex of two metals and two hydrophobic units. In fact, the two Zn(II) act cooperatively in substrate binding, probably through a bridging interaction of the phosphate ester; the interaction is further reinforced by pi-stacking pairing and hydrophobic interactions between the phenanthroline unit(s) and the p-nitrophenyl groups of BNPP.
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Affiliation(s)
- Carla Bazzicalupi
- Dipartimento di Chimica, Polo Scientifico, Università di Firenze, Via della Lastruccia 3, 50019, Sesto Fiorentino, Firenze, Italy
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Bernier N, Allali M, Tripier R, Conan F, Patinec V, Develay S, Le Baccon M, Handel H. New side-bridged bismacrocycles and cross-bridged macrotricycles. Syntheses and Cu(ii) complexation study. NEW J CHEM 2006. [DOI: 10.1039/b515150c] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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