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Soltani S, Magri P, Rogalski M, Kadri M. Charge-transfer complexes of hypoglycemic sulfonamide with π-acceptors: Experimental and DFT-TDDFT studies. J Mol Struct 2019. [DOI: 10.1016/j.molstruc.2018.07.074] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
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Soltani S, Magri P, Rogalski M, Kadri M. UV-Vis, FTIR, 1H, 13C NMR spectra and thermal studies of charge transfer complexes formed in the reaction of Gliclazide with π- and σ-electron acceptors. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2018; 205:170-178. [PMID: 30015022 DOI: 10.1016/j.saa.2018.07.026] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/17/2018] [Revised: 06/28/2018] [Accepted: 07/08/2018] [Indexed: 06/08/2023]
Abstract
Charge transfer interactions (CT) between a gliclazide (GLC) donor and a picric acid (PA) π acceptor or iodine σ acceptor, were studied in a chloroform solution and in the solid state. UV-vis spectroscopy elucidated the formation of the complexes, and allowed determination of the stoichiometry, stability constants (K), and thermodynamic quantities (ΔG°, ΔH°, and ΔS°), and spectroscopic properties such as the molar extinction coefficient (εCT), oscillator strength (f), transition dipole moment (μEN), and ionization potential (Ip). Beer's law was obeyed over the 2-8 and 4-12 μg mL-1 concentration ranges for GLC with PA (method A) and I2 (method B), respectively, with correlation coefficients of 0.9986 and 0.9989. The limits of detection (LOD) and limits of quantification (LOQ) have also been reported. The 1:1 stoichiometric CT complexes were synthesized and characterized by FTIR, 1H, and 13C NMR spectroscopy. The results indicated a favorable proton migration from PA to the donor molecule, and an interaction between the NH of GLC and iodine. Thermogravimetric analysis techniques (TGA/DTA) and differential scanning calorimetry (DSC) were used to determine the thermal stability of the synthesized CT complex. The kinetic parameters (ΔG*, ΔH*, and ΔS*) were calculated from thermal decomposition data using the Coats-Redfern method.
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Affiliation(s)
- Sara Soltani
- Laboratoire de Chimie Physique, Université 08 Mai 45, BP401, Guelma 24000, Algeria
| | - Pierre Magri
- Laboratoire de Chimie et de Physique Approches Multi-échelles des Milieux Complexes, Université de Lorraine, 1 Boulevard Arago, Technopole, 57070 Metz, France
| | - Marek Rogalski
- Laboratoire de Chimie et de Physique Approches Multi-échelles des Milieux Complexes, Université de Lorraine, 1 Boulevard Arago, Technopole, 57070 Metz, France
| | - Mekki Kadri
- Laboratoire de Chimie Physique, Université 08 Mai 45, BP401, Guelma 24000, Algeria.
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Amata E, Marrazzo A, Dichiara M, Modica MN, Salerno L, Prezzavento O, Nastasi G, Rescifina A, Romeo G, Pittalà V. Heme Oxygenase Database (HemeOxDB) and QSAR Analysis of Isoform 1 Inhibitors. ChemMedChem 2017; 12:1873-1881. [PMID: 28708269 DOI: 10.1002/cmdc.201700321] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2017] [Revised: 07/04/2017] [Indexed: 11/12/2022]
Abstract
Due to increasing interest in the field of heme oxygenases (HOs), we built a ligand database called HemeOxDB that includes the entire set of known HO-1 and HO-2 inhibitors, resulting in more than 400 compounds. The HemeOxDB is available online at http://www.researchdsf.unict.it/hemeoxdb/, and having a robust search engine allows end users to build complex queries, sort tabulated results, and generate color-coded two- and three-dimensional graphs. This database will grow to be a tool for the design of potent and selective HO-1 or HO-2 inhibitors. We were also interested in virtually searching for alternative inhibitors, and, for the first time in the field of HOs, a quantitative structure-activity relationship (QSAR) model was built using half-maximal inhibitory concentration (IC50 ) values of the whole set of known HO-1 inhibitors, taken from the HemeOxDB and employing the Monte Carlo technique. The statistical quality suggested that the model is robust and possesses desirable predictive potential. The screening of US Food and Drug Administration (FDA)-approved drugs, external to our dataset, suggested new predicted inhibitors, opening the way for replacing imidazole groups. The HemeOxDB and the QSAR model reported herein may help in prospectively identifying or repurposing new drugs with optimal structural attributes for HO enzyme inhibition.
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Affiliation(s)
- Emanuele Amata
- Department of Drug Sciences, University of Catania, Viale A. Doria 6, 95125, Catania, Italy
| | - Agostino Marrazzo
- Department of Drug Sciences, University of Catania, Viale A. Doria 6, 95125, Catania, Italy
| | - Maria Dichiara
- Department of Drug Sciences, University of Catania, Viale A. Doria 6, 95125, Catania, Italy
| | - Maria N Modica
- Department of Drug Sciences, University of Catania, Viale A. Doria 6, 95125, Catania, Italy
| | - Loredana Salerno
- Department of Drug Sciences, University of Catania, Viale A. Doria 6, 95125, Catania, Italy
| | - Orazio Prezzavento
- Department of Drug Sciences, University of Catania, Viale A. Doria 6, 95125, Catania, Italy
| | - Giovanni Nastasi
- Department of Mathematics and Computer Sciences, University of Catania, Viale A. Doria 6, 95125, Catania, Italy
| | - Antonio Rescifina
- Department of Drug Sciences, University of Catania, Viale A. Doria 6, 95125, Catania, Italy
| | - Giuseppe Romeo
- Department of Drug Sciences, University of Catania, Viale A. Doria 6, 95125, Catania, Italy
| | - Valeria Pittalà
- Department of Drug Sciences, University of Catania, Viale A. Doria 6, 95125, Catania, Italy
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Abd El-Wahed MG, El-Megharbel SM, El-Sayed MY, Zahran YM, Refat MS, Al-Omar MA, Naglah AM. Synthesis, spectral, antimicrobial, and thermal properties of Ce(III), Gd(III), Nd(III), Tb(III), and Er(III) gliclazide complexes. RUSS J GEN CHEM+ 2016. [DOI: 10.1134/s1070363216020328] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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