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Sid D, Baitiche M, Elbahri Z, Djerboua F, Boutahala M, Bouaziz Z, Le Borgne M. Solubility enhancement of mefenamic acid by inclusion complex with β-cyclodextrin: in silico modelling, formulation, characterisation, and in vitro studies. J Enzyme Inhib Med Chem 2021; 36:605-617. [PMID: 33557644 PMCID: PMC8759728 DOI: 10.1080/14756366.2020.1869225] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
The aim of this study was to prepare and characterise inclusion complexes of a low water-soluble drug, mefenamic acid (MA), with β-cyclodextrin (β-CD). First, the phase solubility diagram of MA in β-CD was drawn from 0 to 21 × 10−3 M of β-CD concentration. A job’s plot experiment was used to determine the stoichiometry of the MA:β-CD complex (2:1). The stability of this complex was confirmed by molecular modelling simulation. Three methods, namely solvent co-evaporation (CE), kneading (KN), and physical mixture (PM), were used to prepare the (2:1) MA:β-CD complexes. All complexes were fully characterised. The drug dissolution tests were established in simulated liquid gastric and the MA water solubility at pH 1.2 from complexes was significantly improved. The mechanism of MA released from the β-CD complexes was illustrated through a mathematical treatment. Finally, two in vitro experiments confirmed the interest to use a (2:1) MA:β-CD complex.
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Affiliation(s)
- Dounia Sid
- Département de Génie des Procédés, Faculté de Technologie, Laboratoire de Préparation, Modification et Applications des Matériaux Polymériques Multiphasiques, Université Ferhat Abbas Sétif-1, Sétif, Algérie
| | - Milad Baitiche
- Département de Génie des Procédés, Faculté de Technologie, Laboratoire de Préparation, Modification et Applications des Matériaux Polymériques Multiphasiques, Université Ferhat Abbas Sétif-1, Sétif, Algérie
| | - Zineb Elbahri
- Faculty of Exact Sciences, Laboratory of Materials and Catalysis, Djillali Liabès University of Sidi Bel Abbès, Sidi Bel Abbès, Algeria
| | - Ferhat Djerboua
- Département de Génie des Procédés, Faculté de Technologie, Laboratoire de Préparation, Modification et Applications des Matériaux Polymériques Multiphasiques, Université Ferhat Abbas Sétif-1, Sétif, Algérie
| | - Mokhtar Boutahala
- Département de Génie des Procédés, Faculté de Technologie, Laboratoire de Génie des Procédés Chimiques, Université Ferhat Abbas Sétif-1, Sétif, Algérie
| | - Zouhair Bouaziz
- EA 4446 Bioactive Molecules and Medicinal Chemistry, SFR Santé Lyon-Est CNRS UMS3453 - INSERM US7, Université Claude Bernard Lyon 1, Univ Lyon, Lyon, France
| | - Marc Le Borgne
- EA 4446 Bioactive Molecules and Medicinal Chemistry, SFR Santé Lyon-Est CNRS UMS3453 - INSERM US7, Université Claude Bernard Lyon 1, Univ Lyon, Lyon, France.,Centre de Recherche en Cancérologie de Lyon, Centre Léon Bérard, Small Molecules for Biological Targets Team, CNRS 5286, INSERM 1052, Université Claude Bernard Lyon 1, Univ Lyon, Lyon, France
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Photostabilization of Poly(vinyl chloride) Films Blended with Organotin Complexes of Mefenamic Acid for Outdoor Applications. APPLIED SCIENCES-BASEL 2021. [DOI: 10.3390/app11062853] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
This study develops a process for enhancing the photostabilization of PVC films blended with a low concentration of mefenamate–tin complex. One tri-substituted and three di-substituted organotin complexes containing mefenamate unit are synthesized, and their chemical structures are established. The reactions of mefenamic acid and a number of substituted tin chlorides gave the corresponding tin complexes in 70–77% yields. Tin complexes were blended with PVC and thin films. The effect of the addition of additives against long-term irradiation (290–400 nm, 300 h) is also tested. Changes in the infrared spectra, weight, and surface of the PVC blends due to irradiation are examined and analyzed. Any damage to the PVC surface and its chemical degradation level are noticeably low in the presence of additives. Minimal photodegradation levels and surface changes of the irradiated PVC films are observed when the triphenyltin complex is used. Such a complex is highly aromatic and can act as an ultraviolet irradiation absorber and a scavenger for hydrogen chloride and radicals produced due to the photooxidation and photoirradiation of PVC films.
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Gacki M, Kafarska K, Pietrzak A, Szczesio M, Korona-Głowniak I, Wolf WM. Transition Metal Complexes with Flufenamic Acid for Pharmaceutical Applications-A Novel Three-Centered Coordination Polymer of Mn(II) Flufenamate. MATERIALS (BASEL, SWITZERLAND) 2020; 13:ma13173705. [PMID: 32825746 PMCID: PMC7503579 DOI: 10.3390/ma13173705] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/30/2020] [Revised: 08/17/2020] [Accepted: 08/19/2020] [Indexed: 06/11/2023]
Abstract
Five complexes of Mn(II), Co(II), Ni(II), Cu(II) and Zn(II) with non-steroidal anti-inflammatory drug, flufenamic acid were synthesized: (1) [Mn3(fluf)6EtOH)(H2O)]·3EtOH; (2) [Co(fluf)2(EtOH)(H2O)]·H2O; (3) [Ni(fluf)2(EtOH)(H2O)]·H2O; (4) [Cu(fluf)2·H2O]; (5) [Zn(fluf)2·H2O]. All complexes were characterized by elemental analysis (EA), flame atomic absorption spectrometry (FAAS), Fourier-transform infrared spectroscopy (FTIR), and thermogravimetric analysis (TGA). The crystal structure of 1 was determined by the single crystal X-ray diffraction technique. It crystallizes in the triclinic space group P with three independent Mn(II) cations, six coordinated flufenamato ligands augmented with water and ethanol molecules in the inner coordination sphere. In this crystal, manganese atoms are multiplied by symmetry and form infinite, polymeric chains which extend along the [001] dimension. The Hirshfeld Surface analysis revealed changes in interaction assemblies around all metal centers. The antioxidant and antimicrobial activities were established for all complexes and free ligand for comparison. All compounds exhibit good or moderate bioactivity against Gram-positive bacteria and yeasts.
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Affiliation(s)
- Michał Gacki
- Institute of General and Ecological Chemistry, Faculty of Chemistry, Lodz University of Technology, 116 Zeromskiego Street, 90–924 Lodz, Poland; (K.K.); (A.P.); (M.S.); (W.M.W.)
| | - Karolina Kafarska
- Institute of General and Ecological Chemistry, Faculty of Chemistry, Lodz University of Technology, 116 Zeromskiego Street, 90–924 Lodz, Poland; (K.K.); (A.P.); (M.S.); (W.M.W.)
| | - Anna Pietrzak
- Institute of General and Ecological Chemistry, Faculty of Chemistry, Lodz University of Technology, 116 Zeromskiego Street, 90–924 Lodz, Poland; (K.K.); (A.P.); (M.S.); (W.M.W.)
| | - Małgorzata Szczesio
- Institute of General and Ecological Chemistry, Faculty of Chemistry, Lodz University of Technology, 116 Zeromskiego Street, 90–924 Lodz, Poland; (K.K.); (A.P.); (M.S.); (W.M.W.)
| | - Izabela Korona-Głowniak
- Department of Pharmaceutical Microbiology, Medical University of Lublin, Chodzki 1, 20–093 Lublin, Poland;
| | - Wojciech M. Wolf
- Institute of General and Ecological Chemistry, Faculty of Chemistry, Lodz University of Technology, 116 Zeromskiego Street, 90–924 Lodz, Poland; (K.K.); (A.P.); (M.S.); (W.M.W.)
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Gacki M, Kafarska K, Pietrzak A, Korona-Głowniak I, Wolf WM. Quasi-Isostructural Co(II) and Ni(II) Complexes with Mefenamato Ligand: Synthesis, Characterization, and Biological Activity. Molecules 2020; 25:E3099. [PMID: 32646012 PMCID: PMC7412345 DOI: 10.3390/molecules25133099] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2020] [Revised: 06/27/2020] [Accepted: 07/02/2020] [Indexed: 12/02/2022] Open
Abstract
Three metal complexes of mefenamato ligand 1 were synthesized: [Co2(mef)4(EtOH)2(H2O)4]: 2; [Co(mef)2(MeOH)4]∙2MeOH: 3; and [Ni(mef)2(MeOH)4]∙2MeOH: 4. Their compositions and properties were investigated by elemental analysis (EA), flame atomic absorption spectrometry (FAAS), Fourier-transform infrared spectroscopy (FTIR), and thermogravimetric analysis (TGA). Crystal structures were determined by the single crystal X-ray diffraction technique. Additionally, their antioxidant and antimicrobial activity were established, thus proving good/moderate bioactivity against Gram-positive bacteria and yeasts. In the crystal structure of 2, an apical water molecule is shared between two adjacent cobalt(II) ions, resulting in the formation of a polymeric chain extending along the [100] direction. Meanwhile, structures 3 and 4 have strong intermolecular hydrogen bonds with diverse topologies that yield unique quasi-isostructural arrangements. The packing topology is reflected by the Hirshfeld surface analysis of intermolecular contacts.
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Affiliation(s)
- Michał Gacki
- Institute of General and Ecological Chemistry, Faculty of Chemistry, Lodz University of Technology, 116 Zeromskiego Street, 90-924 Lodz, Poland; (K.K.); (A.P.); (W.M.W.)
| | - Karolina Kafarska
- Institute of General and Ecological Chemistry, Faculty of Chemistry, Lodz University of Technology, 116 Zeromskiego Street, 90-924 Lodz, Poland; (K.K.); (A.P.); (W.M.W.)
| | - Anna Pietrzak
- Institute of General and Ecological Chemistry, Faculty of Chemistry, Lodz University of Technology, 116 Zeromskiego Street, 90-924 Lodz, Poland; (K.K.); (A.P.); (W.M.W.)
| | - Izabela Korona-Głowniak
- Department of Pharmaceutical Microbiology, Medical University of Lublin, Chodzki 1, 20-093 Lublin, Poland;
| | - Wojciech M. Wolf
- Institute of General and Ecological Chemistry, Faculty of Chemistry, Lodz University of Technology, 116 Zeromskiego Street, 90-924 Lodz, Poland; (K.K.); (A.P.); (W.M.W.)
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Gacki M, Kafarska K, Wolf WM. A supramolecular polymeric chain in the cobalt(II) complex with diclofenac: synthesis, crystal structure, spectroscopic, thermal and antioxidant activity. J COORD CHEM 2019. [DOI: 10.1080/00958972.2019.1701664] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Affiliation(s)
- Michal Gacki
- Faculty of Chemistry, Institute of General and Ecological Chemistry, Lodz University of Technology, Lodz, Poland
| | - Karolina Kafarska
- Faculty of Chemistry, Institute of General and Ecological Chemistry, Lodz University of Technology, Lodz, Poland
| | - Wojciech M. Wolf
- Faculty of Chemistry, Institute of General and Ecological Chemistry, Lodz University of Technology, Lodz, Poland
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