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Etsè KS, Zaragoza G, Demonceau A. Novel trans iodo(2-(N-alkylsulfamoyl)phenyl)bis(-triphenylphosphine palladium) complexes: Synthesis, mass spectrometry, X-ray structural description, steric map, near infrared analyses and catalytic activities evaluation. Polyhedron 2022. [DOI: 10.1016/j.poly.2022.116013] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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Etsè KS, Djidjolé Etsè K, Zaragoza G, Mouithys-Mickalad A. Structural description, IR, TGA, antiradical, HRP activity inhibition and molecular docking exploration of N-cyclohexyl-N-tosylformamide. J Mol Struct 2022. [DOI: 10.1016/j.molstruc.2022.133731] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Design, synthesis and biochemical evaluation of novel 2-amino-3-(7-methoxybenzo[d][1,3]dioxol-5-yl)propanoic acid using Horseradish peroxidase (HRP) activity, cellular ROS inhibition and molecular docking study. J Mol Struct 2022. [DOI: 10.1016/j.molstruc.2021.131668] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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Das TK, Kundu M, Mondal B, Ghosh P, Das S. Organocatalytic synthesis of (Het)biaryl scaffolds via photoinduced intra/intermolecular C(sp 2)-H arylation by 2-pyridone derivatives. Org Biomol Chem 2021; 20:208-218. [PMID: 34878476 DOI: 10.1039/d1ob01798e] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
A unique N,O-bidentate ligand 6-oxo-1,6-dihydro-pyridone-2-carboxylic acid dimethylamide (L1) catalyzed direct C(sp2)-H (intra/intermolecular) arylation of unactivated arenes has been developed to expedite access to (Het)biaryl scaffolds under UV-irradiation at room temperature. The protocol tolerated diverse functional groups and substitution patterns, affording the target products in moderate to excellent yields. Mechanistic investigations were also carried out to better understand the reaction pathway. Furthermore, the synthetic applicability of this unified approach has been showcased via the construction of biologically relevant 4-quinolone, tricyclic lactam and sultam derivatives.
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Affiliation(s)
- Tapas Kumar Das
- TCG Lifesciences Pvt. Ltd., BN-7, Sector V, Salt Lake City, Kolkata-700091, India. .,Department of Chemistry, University of North Bengal, Darjeeling, 734013, India.
| | - Mrinalkanti Kundu
- TCG Lifesciences Pvt. Ltd., BN-7, Sector V, Salt Lake City, Kolkata-700091, India.
| | - Biswajit Mondal
- TCG Lifesciences Pvt. Ltd., BN-7, Sector V, Salt Lake City, Kolkata-700091, India. .,Department of Chemistry, University of North Bengal, Darjeeling, 734013, India.
| | - Prasanjit Ghosh
- Department of Chemistry, University of North Bengal, Darjeeling, 734013, India.
| | - Sajal Das
- Department of Chemistry, University of North Bengal, Darjeeling, 734013, India.
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Easy preparation of novel 3,3-dimethyl-3,4-dihydro-2H-1,2,4-benzothiadiazine 1,1-dioxide: Molecular structure, Hirshfeld surface, NCI analyses and molecular docking on AMPA receptors. J Mol Struct 2021. [DOI: 10.1016/j.molstruc.2021.130435] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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Etsè KS, Etsè KD, Nyssen P, Mouithys-Mickalad A. Assessment of anti-inflammatory-like, antioxidant activities and molecular docking of three alkynyl-substituted 3-ylidene-dihydrobenzo[d]isothiazole 1,1-dioxide derivatives. Chem Biol Interact 2021; 344:109513. [PMID: 33974901 DOI: 10.1016/j.cbi.2021.109513] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2020] [Revised: 04/12/2021] [Accepted: 05/05/2021] [Indexed: 11/19/2022]
Abstract
The presence of enyne and benzoisothiazole functions in the molecular architecture of compounds 1, 2 and 3 were expected to provide biochemical activities. In the present work, we first examined the molecular surface contact of three alkynyl-substituted 3-ylidenedihydrobenzo[d] isothiazole 1,1-dioxides. The analysis of the Hirshfeld surfaces reveals that only compound 3 exhibited a well-defined red spots, indicating intermolecular interactions identified as S-O⋯H, C-H⋯O and C-O⋯H contacts. Comparative fingerprint histograms of the three compounds show that close pair interactions are dominated by C-H⋯H-C contact. By UV-visible analysis, compound 1 showed the most intense absorbances at 407 and 441 nm, respectively. The radical scavenging activity explored in the DPPH test, shows that only 1 exhibited low anti-radical activity. Furthermore, cellular antioxidant capacity of benzoisothiazoles 1-3 was investigated with PMA-activated HL-60 cells using chemiluminescence and fluorescence techniques in the presence of L-012 and Amplex Red probe, respectively. Results highlight that compound 1 exhibited moderate anti-ROS capacity while compounds 2 and 3 enhanced ROS production. The cytotoxicity test performed on HL-60 cells, using the MTS assay, confirmed the lack of toxicity of the tested benzoisothiazole 1 compared to 2 and 3 which show low cytotoxicity (≤30%). Anti-catalytic activity was evaluated by following the inhibitory potential of the benzoisothiazoles on MPO activity and depicted benzoisothiazoles-MPO interactions by docking. Both SIEFED and docking studies demonstrated an anti-catalytic activity of the tested benzoisothiazoles towards MPO with the best activity for compound 2.
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Affiliation(s)
- Koffi Sénam Etsè
- Laboratory of Medicinal Chemistry, Center for Interdisciplinary Research on Medicines (CIRM), University of Liège, Quartier Ho^pital B36 Av. Hippocrate 15 B-4000 Liège, Belgium
| | - Kodjo Djidjolé Etsè
- Laboratoire de Physiologie et Biotechnologie Végétales (LPBV), Faculté des Sciences (FDS), Université de Lomé (UL), Lomé, Togo
| | - Pauline Nyssen
- Biomedical Spectroscopy Laboratory, Department of Physics, CESAM, ULiège, Sart-Tilman, B-4000 Liège, Belgium
| | - Ange Mouithys-Mickalad
- Center for Oxygen, Research and Development (CORD) and Center for Interdisciplinary Research on Medicine (CIRM) Institute of Chemistry University of Liège, Sart-Tilman (B.6a), 4000 Liège, Belgium.
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New N-methylimidazolium hexachloroantimonate: Synthesis, crystal structure, Hirshfeld surface and catalytic activity of in cyclopropanation of stryrene. INORG CHEM COMMUN 2020. [DOI: 10.1016/j.inoche.2020.108291] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Etse KS, Lamela LC, Zaragoza G, Pirotte B. Synthesis, crystal structure, Hirshfeld surface and interaction energies analysis of 5-methyl-1,3-bis(3-nitrobenzyl)pyrimidine-2,4(1H,3H)-dione. ACTA ACUST UNITED AC 2020. [DOI: 10.5155/eurjchem.11.2.91-99.1973] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
The title compound 5-methyl-1,3-bis(3-nitrobenzyl)pyrimidine-2,4(1H,3H)-dione was obtained by reaction of thymine with 3-nitrobenzylbromide in the presence of cesium carbonate. Characterization of the product was achieved by NMR spectroscopy and its stability was probed in basic condition using UV-Visible analysis. Furthermore, the molecular structure was confirmed by X-ray diffraction analysis. The compound crystallizes in orthorhombic Pna21 space group with unit cell parameters a = 14.9594 (15) Å, b = 25.711 (3) Å, c = 4.5004 (4) Å, V = 1731.0 (3) Å3 and Z = 4. The crystal packing of the title compound is stabilized by intermolecular hydrogen bond, π···π and C−H···π stacking interactions. The intermolecular interactions were furthermore analyzed through the mapping of different Hirshfeld surfaces. The two-dimensional fingerprint revealed that the most important contributions to these surfaces come from O···H (37.1%), H···H (24%) and H···C/C···H (22.6%) interactions. The interaction energies stabilizing the crystal packing were calculated and were presented graphically as framework energy diagrams. Finally, the energy-framework analysis reveals that π···π and C−H···π interactions energies are mainly dispersive and are the most important forces in the crystal.
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Affiliation(s)
- Koffi Senam Etse
- Laboratory of Medicinal Chemistry, Center for Interdisciplinary Research on Medicines (CIRM), University of Liège, Quartier Hôpital B36 Av. Hippocrate 15 B-4000 Liège, Belgium
| | - Laura Comeron Lamela
- Laboratory of Medicinal Chemistry, Center for Interdisciplinary Research on Medicines (CIRM), University of Liège, Quartier Hôpital B36 Av. Hippocrate 15 B-4000 Liège, Belgium
| | - Guillermo Zaragoza
- Unidade de Difracción de Raios X, RIAIDT, Universidade de Santiago de Compostela, Campus VIDA, 15782 Santiago de Compostela, Spain
| | - Bernard Pirotte
- Laboratory of Medicinal Chemistry, Center for Interdisciplinary Research on Medicines (CIRM), University of Liège, Quartier Hôpital B36 Av. Hippocrate 15 B-4000 Liège, Belgium
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Etse KS, Zaragoza G, Pirotte B. Crystal structure and Hirshfeld surface analysis of N-(2-(N-methylsulfamoyl)phenyl)formamide: Degradation product of 2-methyl-2H-1,2,4-benzothiadiazine 1,1-dioxide. ACTA ACUST UNITED AC 2019. [DOI: 10.5155/eurjchem.10.3.189-194.1903] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
The hydrolysis of 2-methyl-2H-1,2,4-benzothiadiazine 1,1-dioxide (2) during crystallization under humidity (85 %) conditions, lead to N-(2-(N-methylsulfamoyl)phenyl)formamide as second step hydrolysis product, identified in the proposed degradation mechanism. Crystal of N-(2-(N-methylsulfamoyl)phenyl)formamide C8H10N2O3S (4), was obtained and characterized. The molecular structure determination was carried out with MoKα X-ray and data measured at 100 K. The compound 4 crystallizes in triclinic P͞1 space group with unit cell parameters a = 4.8465(4) Å, b = 8.1942(9) Å, c = 11.8686(13) Å, α = 77.080(4)°, β = 82.069(4)°, γ = 80.648(4)°, V = 450.76 (8) Å3 and Z = 2. The crystal structure is stabilized by intramolecular N-H···O and intermolecular C-H···O and N-H···O hydrogen bonds that extended as infinite 1D chain along [100]. Stabilization is also ensured by oxygen-π stacking interaction between the aromatic ring and oxygen of the sulfonamide group. The analysis of intermolecular interactions through the mapping of dnorm and shape-index revel that the most significant contributions to the Hirshfeld surface 40.6 and 33.9% are from H···H and O···H contacts, respectively.
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Affiliation(s)
- Koffi Senam Etse
- Laboratory of Medicinal Chemistry, Center for Interdisciplinary Research on Medicines (CIRM), University of Liège, Quartier Hôpital B36 Av. Hippocrate 15 B-4000 Liège, Belgium
| | - Guillermo Zaragoza
- Unidade de Difracción de Raios X, RIAIDT, Universidade de Santiago de Compostela, Campus VIDA, 15782 Santiago de Compostela, Spain
| | - Bernard Pirotte
- Laboratory of Medicinal Chemistry, Center for Interdisciplinary Research on Medicines (CIRM), University of Liège, Quartier Hôpital B36 Av. Hippocrate 15 B-4000 Liège, Belgium
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