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May NV, Nys K, Ching HYV, Bereczki L, Holczbauer T, Di Marco VB, Bombicz P. Crystal structures of zinc(II) complexes with β-hydroxypyridinecarboxylate ligands: examples of structure-directing effects used in inorganic crystal engineering. ACTA CRYSTALLOGRAPHICA SECTION B, STRUCTURAL SCIENCE, CRYSTAL ENGINEERING AND MATERIALS 2021; 77:193-204. [PMID: 33843726 PMCID: PMC8040096 DOI: 10.1107/s2052520621000299] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/27/2020] [Accepted: 01/09/2021] [Indexed: 06/12/2023]
Abstract
The coordination properties of four hydroxypyridinecarboxylates, designed for the treatment of iron-overloading conditions as bidentate O,O'-donor ligands, have been studied with ZnII in the solid state. The coordination compounds [Zn(A1)2(H2O)2] (1), [Zn(A2)2(H2O)] (2), [Zn(A3)2(H2O)]·2H2O (3) and [Zn2(B1)4(H2O)2]·4H2O (4), where the ligands are 1-methyl-4-oxidopyridinium-3-carboxylate (A1, C7H6NO3), 1,6-dimethyl-4-oxidopyridinium-3-carboxylate (A2, C8H8NO3), 1,5-dimethyl-4-oxido-pyridinium-3-carboxylate (A3, C8H8NO3) and 1-methyl-3-oxidopyridinium-4-carboxylate (B1, C7H6NO3), have been synthesized and analysed by single-crystal X-ray diffraction. The ligands were chosen to probe (i) the electronic effects of inverting the positions of the O-atom donor groups (i.e. A1 versus B1) and (ii) the electronic and steric effects of the addition of a second methyl group in different positions on the pyridine ring. Two axially coordinated water molecules resulting in a six-coordinated symmetrical octahedron complement the bis-ligand complex of A1. Ligands A2 and A3 form five-coordinated trigonal bipyramidal complexes with one additional water molecule in the coordination sphere, which is a rarely reported geometry for ZnII complexes. Ligand B1 shows a dimeric structure, where the two Zn2+ dications have slightly distorted octahedral geometry and the pyridinolate O atom of the neighbouring complex bridges them. The coordination spheres of the Zn2+ dications and the supramolecular structures are discussed in detail. The packing arrangements of 1-3 are similar, having alternating hydrophilic and hydrophobic layers, however the similarity is broken in 4. The obtained coordination geometries are compared with their previously determined CuII analogues. The study of the individual complexes is complemented with a comprehensive analysis of ZnII complexes with oxygen donor ligands with data from the Cambridge Structural Database.
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Affiliation(s)
- Nóra Veronika May
- Centre for Structural Sciences, Research Centre for Natural Sciences, Magyar tudósok körútja 2, Budapest, H-1117, Hungary
| | - Kevin Nys
- Department of Chemistry, University of Antwerp, Universiteitsplein 1, Antwerpen, B-2610, Belgium
| | - H. Y. Vincent Ching
- Department of Chemistry, University of Antwerp, Universiteitsplein 1, Antwerpen, B-2610, Belgium
| | - Laura Bereczki
- Centre for Structural Sciences, Research Centre for Natural Sciences, Magyar tudósok körútja 2, Budapest, H-1117, Hungary
- Institute of Materials and Environmental Chemistry, Research Centre for Natural Sciences, Magyar tudósok körútja 2, Budapest, H-1117, Hungary
| | - Tamás Holczbauer
- Centre for Structural Sciences, Research Centre for Natural Sciences, Magyar tudósok körútja 2, Budapest, H-1117, Hungary
- Institute of Organic Chemistry, Research Centre for Natural Sciences, Magyar tudósok körútja 2, Budapest, H-1117, Hungary
| | - Valerio B. Di Marco
- Department of Chemical Sciences, University of Padova, via Marzolo 1, Padova, 35131, Italy
| | - Petra Bombicz
- Centre for Structural Sciences, Research Centre for Natural Sciences, Magyar tudósok körútja 2, Budapest, H-1117, Hungary
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Metal Chelation Therapy and Parkinson's Disease: A Critical Review on the Thermodynamics of Complex Formation between Relevant Metal Ions and Promising or Established Drugs. Biomolecules 2019; 9:biom9070269. [PMID: 31324037 PMCID: PMC6681387 DOI: 10.3390/biom9070269] [Citation(s) in RCA: 40] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2019] [Revised: 07/03/2019] [Accepted: 07/04/2019] [Indexed: 12/14/2022] Open
Abstract
The present review reports a list of approximately 800 compounds which have been used, tested or proposed for Parkinson’s disease (PD) therapy in the year range 2014–2019 (April): name(s), chemical structure and references are given. Among these compounds, approximately 250 have possible or established metal-chelating properties towards Cu(II), Cu(I), Fe(III), Fe(II), Mn(II), and Zn(II), which are considered to be involved in metal dyshomeostasis during PD. Speciation information regarding the complexes formed by these ions and the 250 compounds has been collected or, if not experimentally available, has been estimated from similar molecules. Stoichiometries and stability constants of the complexes have been reported; values of the cologarithm of the concentration of free metal ion at equilibrium (pM), and of the dissociation constant Kd (both computed at pH = 7.4 and at total metal and ligand concentrations of 10−6 and 10−5 mol/L, respectively), charge and stoichiometry of the most abundant metal–ligand complexes existing at physiological conditions, have been obtained. A rigorous definition of the reported amounts is given, the possible usefulness of this data is described, and the need to characterize the metal–ligand speciation of PD drugs is underlined.
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May NV, Gál GT, Szentendrei Z, Korecz L, May Z, Ferlin MG, Dean A, Bombicz P, Di Marco VB. Relationship between solid state structure and solution stability of copper( ii)–hydroxypyridinecarboxylate complexes. NEW J CHEM 2019. [DOI: 10.1039/c9nj01469a] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
More acidic –OH groups increase the solution stability of copper(ii)–hydroxypyridinecarboxylate complexes and they lose the bridging role in cyclic dimer formation.
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Affiliation(s)
- Nóra V. May
- Research Laboratory of Chemical Crystallography
- Research Centre for Natural Sciences Hungarian Academy of Sciences
- H-1117 Budapest
- Hungary
| | - G. Tamás Gál
- Research Laboratory of Chemical Crystallography
- Research Centre for Natural Sciences Hungarian Academy of Sciences
- H-1117 Budapest
- Hungary
| | - Zsolt Szentendrei
- Research Laboratory of Chemical Crystallography
- Research Centre for Natural Sciences Hungarian Academy of Sciences
- H-1117 Budapest
- Hungary
| | - László Korecz
- Institute of Materials and Environmental Chemistry
- Research Centre for Natural Sciences Hungarian Academy of Sciences
- H-1117 Budapest
- Hungary
| | - Zoltán May
- Institute of Materials and Environmental Chemistry
- Research Centre for Natural Sciences Hungarian Academy of Sciences
- H-1117 Budapest
- Hungary
| | | | - Annalisa Dean
- Department of Chemical Sciences
- University of Padova
- 35131 Padova
- Italy
| | - Petra Bombicz
- Research Laboratory of Chemical Crystallography
- Research Centre for Natural Sciences Hungarian Academy of Sciences
- H-1117 Budapest
- Hungary
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4-Hydroxy-3,5-pyridinedicarboxylic Acids: Synthesis, Complexation Properties Towards Fe(III), Al(III), Cu(II), Zn(II), Human Serum Albumin, and Cellular Toxicity. J SOLUTION CHEM 2018. [DOI: 10.1007/s10953-018-0709-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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An NMR study on the 6,6′-(2-(diethylamino)ethylazanediyl)bis(methylene)bis(5-hydroxy-2-hydroxymethyl-4H-pyran-4-one) interaction with AlIII and ZnII ions. J Inorg Biochem 2015; 148:69-77. [DOI: 10.1016/j.jinorgbio.2015.01.016] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2014] [Revised: 01/23/2015] [Accepted: 01/23/2015] [Indexed: 01/24/2023]
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