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Hassoon AA, Smith SJ, Harrison RG. Cadmium and silver complexes of a pyridine containing ligand: syntheses, structural studies, biological activity and docking studies. RSC Adv 2024; 14:31850-31860. [PMID: 39380643 PMCID: PMC11459448 DOI: 10.1039/d4ra05305b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2024] [Accepted: 09/30/2024] [Indexed: 10/10/2024] Open
Abstract
The current study aimed to synthesize seven new metal coordination complexes (Q1-Q7) with potential biomedical applications. Novel mononuclear, polynuclear and mixed-ligand coordination compounds of the elements, cadmium(ii) and silver(i) derived from a pyridine containing ligand (2,4,6-tris-(2-pyridyl)-1,3,5-triazine (TPT)) have been synthesized successfully with the general formulae [Cd(TPT)Cl6]·H2O and [Ag x (TPT) y (L)2(ClO4)](ClO4) z (x = 1,2,3, y = 1,2,3, L = PPh3 or phen, z = 1,2). The structural features were fully characterized using various spectroscopic techniques, such as infrared, ultraviolet-visible spectroscopy, 1D and 2D-NMR (1H, 13C, 31P, 1H-1H COSY and 1H-13C HSQCAD), CHN analysis, molar conductance (Λ), thermogravimetric analysis (TGA), and powder X-ray diffraction analysis. The structure of complex Q6 was also confirmed by single-crystal X-ray analysis. The luminescence and electrochemical properties of complexes, in solution, have been studied. X-ray crystallographic determination of the [Ag(TPT)(PPh3)2]ClO4·EtOH (Q6) complex shows that the Ag+ cation is bonded to one tridentate TPT ligand through NNN set of donor atoms and two triphenylphosphine ligands, giving the Ag+ a distorted trigonal bipyramidal geometry. X-ray powder diffraction analysis showed that metal complexes Q3, Q6 and Q7 display crystalline peaks. The complexes were evaluated for their in vitro antibacterial efficacy against various bacterial and fungal species. The in vitro efficacy against the MCF-7 human breast cancer cell line was assessed to determine the anticancer activities. The tri-nuclear silver complex Q3 shows great potential as a therapeutic candidate for treating breast cancer, since it exhibits a half-maximal inhibition concentration (IC50) of 13.45 ± 0.9 μM. Molecular docking simulations were also carried out to evaluate the interaction strength and properties of the metal complexes with selected cancer and bacteria relevant proteins namely cyclin-dependent kinase 2 (CDK2), cyclin-dependent kinase 6 (CDK6), signal transducer and activator of transcription 3 (STAT3), and beta-lactamases from Escherichia coli and Staphylococcus aureus.
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Affiliation(s)
- Azza A Hassoon
- Chemistry Department, Faculty of Science, Mansoura University Mansoura 35516 Egypt
| | - Stacey J Smith
- Department of Chemistry & Biochemistry, Brigham Young University USA
| | - Roger G Harrison
- Department of Chemistry & Biochemistry, Brigham Young University USA
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2
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Hoang TNN, Ho LBN, Nguyen KNN, Dong TAD, Le THA. The inhibition activity on tyrosinase, xanthine oxidase, and lipase of Musa balbisiana parts grown in Vietnam. Food Sci Nutr 2024; 12:7428-7437. [PMID: 39479626 PMCID: PMC11521665 DOI: 10.1002/fsn3.4364] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2024] [Revised: 07/12/2024] [Accepted: 07/13/2024] [Indexed: 11/02/2024] Open
Abstract
Musa balbisiana Colla plant belongs to the Musaceae family, which is well-known for its nutritional and pharmacological properties. This study aimed to evaluate the anti-xanthine oxidase, anti-lipase, and anti-tyrosinase activities of samples of corm, pseudostem, inflorescence, fruit, peel, and seed of M. balbisiana. The results show that seed performed the highest capacity in the inhibition of three investigated enzymes, with IC50 values of 290.25 μg/mL (anti-tyrosinase), 141.51 μg/mL (anti-xanthine oxidase), and 25.66 μg/mL (anti-lipase). In addition, while fruit showed better performance in anti-lipase inhibition (IC50: 32.72 μg/mL), corm pointed out higher capability on anti-xanthine oxidase (IC50: 160.67 μg/mL) and anti-tyrosinase (IC50: 334.43 μg/mL). The data show the high potential of the application of M. balbisiana parts in medical aesthetics, dietary supplements, or medicine. This is the first report to systematically present the biological activities of all parts of M. balbisiana grown in Vietnam.
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Affiliation(s)
- Thi Ngoc Nhon Hoang
- Food Science and Technology FacultyHo Chi Minh City University of Industry and Trade (HUIT)Ho Chi Minh CityVietnam
| | - Le Bao Ngoc Ho
- Food Science and Technology FacultyHo Chi Minh City University of Industry and Trade (HUIT)Ho Chi Minh CityVietnam
| | - Kim Nhat Nguyet Nguyen
- Food Science and Technology FacultyHo Chi Minh City University of Industry and Trade (HUIT)Ho Chi Minh CityVietnam
| | - Thi Anh Dao Dong
- Department of Food Technology, Chemical Engineering FacultyHo Chi Minh City University of Technology (HCMUT)Ho Chi Minh CityVietnam
- Vietnam National University Ho Chi Minh CityHo Chi Minh CityVietnam
| | - Thi Hong Anh Le
- Food Science and Technology FacultyHo Chi Minh City University of Industry and Trade (HUIT)Ho Chi Minh CityVietnam
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3
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Sun T, Zhen T, Harakandi CH, Wang L, Guo H, Chen Y, Sun H. New insights into butyrylcholinesterase: Pharmaceutical applications, selective inhibitors and multitarget-directed ligands. Eur J Med Chem 2024; 275:116569. [PMID: 38852337 DOI: 10.1016/j.ejmech.2024.116569] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2024] [Revised: 05/30/2024] [Accepted: 06/02/2024] [Indexed: 06/11/2024]
Abstract
Butyrylcholinesterase (BChE), also known as pseudocholinesterase and serum cholinesterase, is an isoenzyme of acetylcholinesterase (AChE). It mediates the degradation of acetylcholine, especially under pathological conditions. Proverbial pharmacological applications of BChE, its mutants and modulators consist of combating Alzheimer's disease (AD), influencing multiple sclerosis (MS), addressing cocaine addiction, detoxifying organophosphorus poisoning and reflecting the progression or prognosis of some diseases. Of interest, recent reports have shed light on the relationship between BChE and lipid metabolism. It has also been proved that BChE is going to increase abnormally as a compensator for AChE in the middle and late stages of AD, and BChE inhibitors can alleviate cognitive disorders and positively influence some pathological features in AD model animals, foreboding favorable prospects and potential applications. Herein, the selective BChE inhibitors and BChE-related multitarget-directed ligands published in the last three years were briefly summarized, along with the currently known pharmacological applications of BChE, aiming to grasp the latest research directions. Thereinto, some emerging strategies for designing BChE inhibitors are intriguing, and the modulators based on target combination of histone deacetylase and BChE against AD is unprecedented. Furthermore, the involvement of BChE in the hydrolysis of ghrelin, the inhibition of low-density lipoprotein (LDL) uptake, and the down-regulation of LDL receptor (LDLR) expression suggests its potential to influence lipid metabolism disorders. This compelling prospect likely stimulates further exploration in this promising research direction.
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Affiliation(s)
- Tianyu Sun
- School of Pharmacy, China Pharmaceutical University, Nanjing, 211198, People's Republic of China
| | - Tengfei Zhen
- School of Pharmacy, China Pharmaceutical University, Nanjing, 211198, People's Republic of China
| | | | - Lei Wang
- School of Pharmacy, China Pharmaceutical University, Nanjing, 211198, People's Republic of China
| | - Huanchao Guo
- School of Pharmacy, China Pharmaceutical University, Nanjing, 211198, People's Republic of China
| | - Yao Chen
- School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing, 210023, People's Republic of China.
| | - Haopeng Sun
- School of Pharmacy, China Pharmaceutical University, Nanjing, 211198, People's Republic of China.
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4
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Tabbiche A, Bouchama A, Fadli K, Ahmad B, Kumar N, Chiter C, Yahiaoui M, Zaidi F, Boudjemaa K, Dege N, Djedouani A, Chafai N. Development of new benzil-hydrazone derivatives as anticholinesterase inhibitors: synthesis, X-ray analysis, DFT study and in vitro/ in silico evaluation. J Biomol Struct Dyn 2024:1-16. [PMID: 38193889 DOI: 10.1080/07391102.2023.2301683] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2023] [Accepted: 08/18/2023] [Indexed: 01/10/2024]
Abstract
Alzheimer's disease (AD) is a complex neurodegenerative disorder affecting the central nervous system. Current drugs for AD have limited effectiveness and often come with side effects. Consequently, there is a pressing need to develop new, safe, and more effective treatments for Alzheimer's disease. In this work, two novel benzil-hydrazone compounds, abbreviated 2-ClMHB and 2-ClBHB, were synthesized for the first time by refluxing the benzil with 2-Chloro phenyl hydrazine and they have been tested for their in vitro anti-cholinesterase activities and in silico acetyl and butyryl enzymes inhibition. The resulting products were characterized using UV-Vis and IR spectroscopy, while the single-crystal X-ray diffraction investigation was successful in establishing the structures of these compounds. DFT calculations have been successfully made to correlate the experimental data. According to biological studies, the synthesized hydrazones significantly inhibited both butyrylcholinesterase (2-ClMHB: 20.95 ± 1.29 µM and 2-ClBHB: 31.21 ± 1.50 µM) and acetylcholinesterase (2-ClMHB: 21.80 ± 1.10 µM and 2-ClBHB: 10.38 ± 1.27 µM). Moreover, molecular docking was also employed to locate the molecule with the optimum interaction and stability as well as to explain the experimental findings. The compound's dynamic nature, binding interaction, and protein-ligand stability were investigated using molecular dynamics (MD) simulations. Analyzing parameters such as RMSD and RMSF indicated that the compound remained stable throughout the 100 ns MD simulation. Finally, the drugs displayed high oral bioavailability, as per projected ADME and pharmacokinetic parameters.Communicated by Ramaswamy H. Sarma.
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Affiliation(s)
- Abdelkader Tabbiche
- Laboratoire de Chimie, Ingénierie Moléculaire et Nanostructures, Université Ferhat Abbas, Sétif, Algeria
- Département de Chimie, Faculté des Sciences, Université Ferhat Abbas, Sétif, Algérie
- Biotechnology Research Center, Ali Mendjli Nouvelle Ville UV03, Constantine, Algérie
| | - Abdelaziz Bouchama
- Laboratoire de Chimie, Ingénierie Moléculaire et Nanostructures, Université Ferhat Abbas, Sétif, Algeria
- Département de Chimie, Faculté des Sciences, Université Ferhat Abbas, Sétif, Algérie
| | - Khadidja Fadli
- Laboratoire de Chimie, Ingénierie Moléculaire et Nanostructures, Université Ferhat Abbas, Sétif, Algeria
- Département de Chimie, Faculté des Sciences, Université Ferhat Abbas, Sétif, Algérie
| | | | - Neeraj Kumar
- Department of Pharmaceutical Chemistry, B.N. College of Pharmacy, Udaipur, India
| | - Chaabane Chiter
- Département de Chimie, Faculté des Sciences, Université Ferhat Abbas, Sétif, Algérie
| | - Messaoud Yahiaoui
- Département de Chimie, Faculté des Sciences, Université Ferhat Abbas, Sétif, Algérie
| | - Farouk Zaidi
- Laboratoire de Chimie, Ingénierie Moléculaire et Nanostructures, Université Ferhat Abbas, Sétif, Algeria
- Département de Chimie, Faculté des Sciences, Université Ferhat Abbas, Sétif, Algérie
| | | | - Necmi Dege
- Department of Physics, Faculty of Arts and Sciences, Ondokuz Mayis University, Samsun, Turkey
| | - Amel Djedouani
- Ecole Normale Supérieure de Constantine, Constantine, Algeria
- Laboratory of Analytical Physicochemistry and Crystallochemistry of Organometallic and Biomolecular Materials, UFMC1, Constantine, Algeria
| | - Nadjib Chafai
- Laboratory of Electrochemistry of Molecular Materials and Complex (LEMMC), Department of Process Engineering, Faculty of Technology, University of Ferhat ABBAS, Sétif, Algeria
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5
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Belhi Z, Karci H, Dündar M, Gürbüz N, Özdemir İ, Koç A, Cheriti A, Özdemir İ. Novel benzimidazolium salts and their silver(I)- N-heterocyclic carbene complexes: synthesis, characterization and their biological properties. J COORD CHEM 2023. [DOI: 10.1080/00958972.2022.2164191] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Affiliation(s)
- Zeyneb Belhi
- Phytochemistry and Organic Synthesis Laboratory, Tahri Mohamed University, Bechar, Algeria
| | - Hüseyin Karci
- Drug Application and Research and Center, İnönü University, Malatya, Türkiye
- Catalysis Research and Application Center, İnönü University, Malatya, Türkiye
| | - Muhammet Dündar
- Department of Chemistry, Faculty of Science and Art, İnönü University, Malatya, Türkiye
| | - Nevin Gürbüz
- Drug Application and Research and Center, İnönü University, Malatya, Türkiye
- Catalysis Research and Application Center, İnönü University, Malatya, Türkiye
- Department of Chemistry, Faculty of Science and Art, İnönü University, Malatya, Türkiye
| | - İlknur Özdemir
- Drug Application and Research and Center, İnönü University, Malatya, Türkiye
- Catalysis Research and Application Center, İnönü University, Malatya, Türkiye
| | - Ahmet Koç
- Drug Application and Research and Center, İnönü University, Malatya, Türkiye
- Medical School, Department of Genetics, İnönü University, Malatya, Türkiye
| | - Abdelkrim Cheriti
- Phytochemistry and Organic Synthesis Laboratory, Tahri Mohamed University, Bechar, Algeria
- Department of Molecular Biology and Genetics, Faculty of Science and Art, İnönü University, Malatya, Türkiye
| | - İsmail Özdemir
- Drug Application and Research and Center, İnönü University, Malatya, Türkiye
- Catalysis Research and Application Center, İnönü University, Malatya, Türkiye
- Department of Chemistry, Faculty of Science and Art, İnönü University, Malatya, Türkiye
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6
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Nachon F, Brazzolotto X, Dias J, Courageux C, Drożdż W, Cao XY, Stefankiewicz AR, Lehn JM. Grid-Type Quaternary Metallosupramolecular Compounds Inhibit Human Cholinesterases through Dynamic Multivalent Interactions. Chembiochem 2022; 23:e202200456. [PMID: 36193860 DOI: 10.1002/cbic.202200456] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2022] [Revised: 09/14/2022] [Indexed: 01/25/2023]
Abstract
We report the implementation of coordination complexes containing two types of cationic moieties, i. e. pyridinium and ammonium quaternary salt, as potential inhibitors of human cholinesterase enzymes. Utilization of ligands containing NNO-coordination site and binding zinc metal ion allowed mono- and tetra-nuclear complexes to be obtained with corner and grid structural type, respectively, thus affecting the overall charge of the compounds (from +1 to +8). We were able to examine for the first time the multivalency effect of metallosupramolecular species on their inhibitory abilities towards acetylcholinesterase (AChE) and butyrylcholinesterase (BChE). Importantly, resolution of the crystal structures of the obtained enzyme-substrate complexes provided a better understanding of the inhibition process at the molecular level.
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Affiliation(s)
- Florian Nachon
- Département de Toxicologie et Risques Chimiques, Institut de Recherche Biomédicale des Armées, 1 place Gal Valérie André, BP87, 91220, Brétigny-sur-Orge, France
| | - Xavier Brazzolotto
- Département de Toxicologie et Risques Chimiques, Institut de Recherche Biomédicale des Armées, 1 place Gal Valérie André, BP87, 91220, Brétigny-sur-Orge, France
| | - José Dias
- Département de Toxicologie et Risques Chimiques, Institut de Recherche Biomédicale des Armées, 1 place Gal Valérie André, BP87, 91220, Brétigny-sur-Orge, France
| | - Charlotte Courageux
- Département de Toxicologie et Risques Chimiques, Institut de Recherche Biomédicale des Armées, 1 place Gal Valérie André, BP87, 91220, Brétigny-sur-Orge, France
| | - Wojciech Drożdż
- Faculty of Chemistry, Adam Mickiewicz University, Uniwersytetu Poznańskiego 8, 61-614, Poznań, Poland.,Center for Advanced Technology, Adam Mickiewicz University, Uniwersytetu Poznańskiego 10, 61-614, Poznań, Poland
| | - Xiao-Yu Cao
- Laboratoire de Chimie Supramoléculaire, Institut de Science et d'Ingénierie Supramoléculaires, Université de Strasbourg, 8 allée Gaspard Monge, 67000, Strasbourg, France
| | - Artur R Stefankiewicz
- Faculty of Chemistry, Adam Mickiewicz University, Uniwersytetu Poznańskiego 8, 61-614, Poznań, Poland.,Center for Advanced Technology, Adam Mickiewicz University, Uniwersytetu Poznańskiego 10, 61-614, Poznań, Poland
| | - Jean-Marie Lehn
- Laboratoire de Chimie Supramoléculaire, Institut de Science et d'Ingénierie Supramoléculaires, Université de Strasbourg, 8 allée Gaspard Monge, 67000, Strasbourg, France
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Hkiri S, Coşkun KA, Üstün E, Samarat A, Tutar Y, Şahin N, Sémeril D. Silver(I) Complexes Based on Oxadiazole-Functionalized α-Aminophosphonate: Synthesis, Structural Study, and Biological Activities. Molecules 2022; 27:8131. [PMID: 36500224 PMCID: PMC9738469 DOI: 10.3390/molecules27238131] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2022] [Revised: 11/15/2022] [Accepted: 11/16/2022] [Indexed: 11/25/2022] Open
Abstract
Two silver(I) complexes, bis{diethyl[(5-phenyl-1,3,4-oxadiazol-2-yl-κN3:κN4-amino) (4-trifluoromethylphenyl)methyl]phosphonate-(tetrafluoroborato-κF)}-di-silver(I) and tetrakis-{diethyl[(5-phenyl-1,3,4-oxadiazol-2-yl-κN3-amino)(4-trifluoromethylphenyl)methyl]phosphonate} silver(I) tetrafluoroborate, were prepared starting from the diethyl[(5-phenyl-1,3,4-oxadiazol-2-yl-amino)(4-trifluoromethylphenyl)methyl]phosphonate (1) ligand and AgBF4 salt in Ag/ligand ratios of 1/1 and 1/4, respectively. The structure, stoichiometry, and geometry of the silver complexes were fully characterized by elemental analyses, infrared, single-crystal X-ray diffraction studies, multinuclear NMR, and mass spectroscopies. The binuclear complex ([Ag2(1)2(BF4)2]; 2) crystallizes in the monoclinic asymmetric space group P21/c and contains two silver atoms adopting a {AgN2F} planar trigonal geometry, which are simultaneously bridged by two oxadiazole rings of two ligands, while the mononuclear complex ([Ag(1)4]BF4; 3) crystallizes in the non-usual cubic space group Fd-3c in which the silver atom binds to four distinct electronically enriched nitrogen atoms of the oxadiazole ring, in a slightly distorted {AgN4} tetrahedral geometry. The α-aminophosphonate and the monomeric silver complex were evaluated in vitro against MCF-7 and PANC-1 cell lines. The silver complex is promising as a drug candidate for breast cancer and the pancreatic duct with half-maximal inhibitory concentration (IC50) values of 8.3 ± 1.0 and 14.4 ± 0.6 μM, respectively. Additionally, the interactions of the ligand and the mononuclear complex with Vascular Endothelial Growth Factor Receptor-2 and DNA were evaluated by molecular docking methods.
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Affiliation(s)
- Shaima Hkiri
- Synthèse Organométallique et Catalyse, UMR-CNRS 7177, University of Strasbourg, 4 rue Blaise Pascal, 67008 Strasbourg, France
- Laboratory of Hetero-Organic Compounds and Nanostructured Materials (LR18ES11), Faculty of Sciences of Bizerte, University of Carthage, Bizerte 7021, Tunisia
| | - Kübra Açıkalın Coşkun
- Department of Medical Biology and Genetics, Faculty of Medicine, University of İstanbul Aydın, Istanbul 34295, Turkey
| | - Elvan Üstün
- Department of Chemistry, Faculty of Art and Science, University of Ordu, Ordu 52200, Turkey
| | - Ali Samarat
- Laboratory of Hetero-Organic Compounds and Nanostructured Materials (LR18ES11), Faculty of Sciences of Bizerte, University of Carthage, Bizerte 7021, Tunisia
| | - Yusuf Tutar
- Department of Basic Pharmaceutical Sciences, Faculty of Pharmacy, University of Health Sciences-Turkey, Istanbul 34668, Turkey
| | - Neslihan Şahin
- Department of Science Education, Faculty of Education, University of Cumhuriyet, Sivas 58140, Turkey
| | - David Sémeril
- Synthèse Organométallique et Catalyse, UMR-CNRS 7177, University of Strasbourg, 4 rue Blaise Pascal, 67008 Strasbourg, France
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8
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Hassen S, Zouaghi MO, Slimani I, Arfaoui Y, Namık Özdemir, Özdemir I, Gürbüz N, Mansour L, Gatri R, Hamdi N. Synthesis, crystal structures, DFT calculations, and catalytic application in hydrosilylation of acetophenone derivatives with triethylsilane of novel rhoduim-N-heterocyclic carbene (NHCs) complex. J Mol Struct 2022. [DOI: 10.1016/j.molstruc.2022.133397] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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9
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Synthesis, characterization, in vitro antibacterial, and anticancer studies of Ag(I)-N-heterocyclic carbene (NHC) complexes. CHEMICAL PAPERS 2022. [DOI: 10.1007/s11696-022-02498-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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10
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Aydın A, Korkmaz N, Kısa D, Türkmenoğlu B, Karadağ A. Dicyanoargentate(I)‐based complexes induced in vivo tumor inhibition by activating apoptosis‐related pathways. Appl Organomet Chem 2022. [DOI: 10.1002/aoc.6844] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Ali Aydın
- Department of Basic Medical Science, Faculty of Medicine Yozgat Bozok University Yozgat Türkiye
| | - Nesrin Korkmaz
- Department of Basic Sciences and Health Hemp Research Institute, Yozgat Bozok University Yozgat Türkiye
| | - Dursun Kısa
- Department of Molecular Biology and Genetics, Faculty of Science Bartin University Bartin Türkiye
| | - Burçin Türkmenoğlu
- Department of Analytical Chemistry, Faculty of Pharmacy Erzincan Binali Yıldırım University Türkiye
| | - Ahmet Karadağ
- Department of Chemistry, Science and Art Faculty Yozgat Bozok University Yozgat Türkiye
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11
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Phlorotannins of the Brown Algae Sargassum vulgare from the Mediterranean Sea Coast. Antioxidants (Basel) 2022; 11:antiox11061055. [PMID: 35739951 PMCID: PMC9219761 DOI: 10.3390/antiox11061055] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2022] [Revised: 05/23/2022] [Accepted: 05/24/2022] [Indexed: 11/17/2022] Open
Abstract
Brown seaweeds are a good source of bioactive compounds, particularly of phlorotannins, which may exert a wide spectrum of pharmacological properties. In the present study, phlorotannins of S. vulgare were extracted using a 70% acetone solution and the crude extract was further purified through liquid–liquid partition, giving rise to n-hexane, ethyl acetate and aqueous residue fractions. The crude extract and the purified fractions were evaluated for potential antioxidant abilities as well as for inhibitory potential towards the digestive enzymes α-amylase and pancreatic lipase, and anti-inflammatory potential through the hindering of albumin denaturation. Overall, the ethyl acetate fraction was the richest in phlorotannins (9.4 ± 0.03 mg PGE/g) and was also the most promising regarding the tested bioactive properties. Of note, its inhibitory potential towards α-amylase was about nine times that of the commercial drug acarbose and its inhibitory activity against high temperature-induced protein denaturation was superior to that of the non-steroidal drug ketoprofen. According to UHPLC-DAD-ESI-MS/MS analysis, this fraction contained a range of phlorotannins with at least six units of phloroglucinol, including dibenzodioxine-1,3,6,8-tetraol, fuhalol, pentaphlorethol, fucopentaphlorethol and dihydroxypentafuhalol, in addition to several less common phlorotannin sulfate derivatives.
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12
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Anti-diabetic potential, crystal structure, molecular docking, DFT, and optical-electrochemical studies of new dimethyl and diethyl carbamoyl-N, N′-disubstituted based thioureas. J Mol Struct 2022. [DOI: 10.1016/j.molstruc.2021.132207] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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13
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Sandeli AEK, Boulebd H, Khiri-Meribout N, Benzerka S, Bensouici C, Özdemir N, Gürbüz N, Özdemir İ. New benzimidazolium N-heterocyclic carbene precursors and their related Pd-NHC complex PEPPSI-type: Synthesis, structures, DFT calculations, biological activity, docking study, and catalytic application in the direct arylation. J Mol Struct 2022. [DOI: 10.1016/j.molstruc.2021.131504] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
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el-Krim Sandeli A, Khiri-Meribout N, Benzerka S, Boulebd H, Gürbüz N, Özdemir N, Özdemir İ. Synthesis, structures, DFT calculations, and catalytic application in the direct arylation of five-membered heteroarenes with aryl bromides of novel palladium-N-heterocyclic carbene PEPPSI-type complexes. NEW J CHEM 2021. [DOI: 10.1039/d1nj03388c] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
A new series of Pd-catalysts was synthesized and fully characterized via spectroscopic methods and the Pd–NHC complexes were evaluated via the direct arylation process.
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Affiliation(s)
- Abd el-Krim Sandeli
- Research Laboratory of Synthesis of Molecules with Biological Interest, Mentouri Constantine-1 University, Constantine, Algeria
- Catalysis Research and Application Center, Inönü University, 44280 Malatya, Turkey
| | - Naima Khiri-Meribout
- Research Laboratory of Synthesis of Molecules with Biological Interest, Mentouri Constantine-1 University, Constantine, Algeria
- Faculty of Science, Department of Chemistry, Mentouri Constantine-1 University, Constantine, Algeria
| | - Saida Benzerka
- Research Laboratory of Synthesis of Molecules with Biological Interest, Mentouri Constantine-1 University, Constantine, Algeria
- Faculty of Science, Department of Chemistry, Mentouri Constantine-1 University, Constantine, Algeria
| | - Houssem Boulebd
- Research Laboratory of Synthesis of Molecules with Biological Interest, Mentouri Constantine-1 University, Constantine, Algeria
- Faculty of Science, Department of Chemistry, Mentouri Constantine-1 University, Constantine, Algeria
| | - Nevin Gürbüz
- Catalysis Research and Application Center, Inönü University, 44280 Malatya, Turkey
- Faculty of Science and Art, Department of Chemistry, İnönü University, Malatya, Turkey
| | - Namık Özdemir
- Department of Mathematics and Science Education, Faculty of Education, Ondokuz Mayıs University, 55139 Samsun, Turkey
| | - İsmail Özdemir
- Catalysis Research and Application Center, Inönü University, 44280 Malatya, Turkey
- Faculty of Science and Art, Department of Chemistry, İnönü University, Malatya, Turkey
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