1
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Güleç Ö, Bilgiçli AT, Tüzün B, Taslimi P, Günsel A, Gülçin İ, Arslan M, Yarasir MN. Peripheral (E)-2-[(4-hydroxybenzylidene)-3,4-dihydronaphthalen-1(2H)-one)]-coordinated phthalocyanines with improved enzyme inhibition properties and photophysicochemical behaviors. Arch Pharm (Weinheim) 2024; 357:e2400209. [PMID: 38838335 DOI: 10.1002/ardp.202400209] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2024] [Revised: 05/06/2024] [Accepted: 05/08/2024] [Indexed: 06/07/2024]
Abstract
In this study, (E)-4-{4-[(1-oxo-3,4-dihydronaphthalen-2(1H)-ylidene)methyl]phenoxy}phthalonitrile (4) and its phthalocyanine derivatives (5-8) were synthesized for the first time. Aggregation behaviors of the novel soluble phthalocyanines in organic solvents were investigated. In addition, the efficiency of 1O2 production of (5) and ZnPc (6) was investigated. The singlet oxygen quantum yields (ΦΔ) for 2HPc (5) and ZnPc (6) were found to be 0.58 and 0.83, respectively. Additionally, novel phthalocyanines (5-8) were investigated for their ability to inhibit enzymes. They exhibited a highly potent inhibition effect on human carbonic anhydrase I and II (hCA I and II) and α-glycosidase (α-Gly) enzymes. Ki values are in the range of 2.60 ± 9.87 to 11.53 ± 6.92 µM, 3.35 ± 0.53 to 15.47 ± 1.20 µM, and 28.60 ± 4.82 to 40.58 ± 7.37 nM, respectively. The calculations of the studied molecule at the B3LYP, HF, and M062X levels in the 6-31G basis sets were made using the Gaussian package program. Afterward, the interactions occurring in the docking calculation against a protein that is the crystal structure of hCA I (PDB ID: 2CAB), the crystal structure of hCA II (PDB ID: 5AML), and the crystal structure of α-Gly (PDB ID: 1R47), were examined. Following that, Protein-Ligand Interaction Profiler (PLIP) analysis was used to look at the interactions that occurred during the docking calculation in further detail.
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Affiliation(s)
- Özcan Güleç
- Department of Chemistry, Sakarya University, Sakarya, Turkey
| | | | - Burak Tüzün
- Sivas Vocational School, Department of Plant and Animal Production, Sivas Cumhuriyet University, Sivas, Turkey
| | - Parham Taslimi
- Department of Biotechnology, Faculty of Sciences, Bartin University, Bartin, Turkey
| | - Armağan Günsel
- Department of Chemistry, Sakarya University, Sakarya, Turkey
| | - İlhami Gülçin
- Department of Chemistry, Faculty of Science, Ataturk University, Erzurum, Turkey
| | - Mustafa Arslan
- Department of Chemistry, Sakarya University, Sakarya, Turkey
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2
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Tokalı FS, Taslimi P, Taskin-Tok T, Karakuş A, Sadeghian N, Gulçin İ. Novel hydrazones derived from anthranilic acid as potent cholinesterases and α-glycosidase inhibitors: Synthesis, characterization, and biological effects. J Biochem Mol Toxicol 2024; 38:e23521. [PMID: 37706603 DOI: 10.1002/jbt.23521] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2023] [Revised: 07/05/2023] [Accepted: 08/21/2023] [Indexed: 09/15/2023]
Abstract
N-substitued anthranilic acid derivatives are commonly found in the structure of many biologically active molecules. In this study, new members of hydrazones derived from anthranilic acid (1-15) were synthesized and investigated their effect on some metabolic enzymes such as acetylcholinesterase (AChE), butyrylcholinesterase (BChE), and α-glycosidase (α-Gly). Results indicated that all the molecules exhibited potent inhibitory effects against all targets as compared to the standard inhibitors, revealed by IC50 values. Ki values of compounds for AChE, BChE, and α-Gly enzymes were obtained in the ranges 66.36 ± 8.30-153.82 ± 13.41, 52.68 ± 6.38-113.86, and 2.13 ± 0.25-2.84 nM, respectively. The molecular docking study was performed for the most active compounds to the determination of ligand-enzyme interactions. Binding affinities of the most active compound were found at the range of -9.70 to -9.00 kcal/mol for AChE, -11.60 to -10.60 kcal/mol for BChE, and -10.30 to -9.30 kcal/mol for α-Gly. Molecular docking simulations showed that the novel compounds had preferential interaction with AChE, BChE, and α-Gly. Drug-likeness properties and ADMET (absorption, distribution, metabolism, excretion, and toxicity) analyzes of all synthesized compounds (1-15) were estimated and their toxic properties were evaluated as well as their therapeutic properties. Moreover, molecular dynamics simulations were carried out to understand the accuracy of the most potent derivatives of docking studies.
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Affiliation(s)
- Feyzi Sinan Tokalı
- Department of Material and Material Processing Technologies, Kars Vocational School, Kafkas University, Kars, Turkey
| | - Parham Taslimi
- Department of Biotechnology, Faculty of Science, Bartin University, Bartin, Turkey
| | - Tugba Taskin-Tok
- Department of Chemistry, Faculty of Arts and Sciences, Gaziantep University, Gaziantep, Turkey
- Department of Bioinformatics and Computational Biology, Institute of Health Sciences, Gaziantep University, Gaziantep, Turkey
| | - Ahmet Karakuş
- Department of Biotechnology, Faculty of Science, Bartin University, Bartin, Turkey
| | - Nastaran Sadeghian
- Department of Biotechnology, Faculty of Science, Bartin University, Bartin, Turkey
| | - İlhami Gulçin
- Department of Chemistry, Faculty of Sciences, Atatürk University, Erzurum, Turkey
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3
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Öner E, Gök Y, Demir Y, Taskin-Tok T, Aktaş A, Gülçin İ, Yalın S. Benzimidazolium Salts Bearing Nitrile Moieties: Synthesis, Enzyme Inhibition Profiling, and Molecular Docking Analysis for Carbonic Anhydrase and Acetylcholinesterase. Chem Biodivers 2023; 20:e202301362. [PMID: 37953698 DOI: 10.1002/cbdv.202301362] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2023] [Revised: 11/03/2023] [Accepted: 11/04/2023] [Indexed: 11/14/2023]
Abstract
This report presents the synthesis and characterization of a range of benzimidazolium salts featuring 3-cyanopropyl groups on the 1st nitrogen atom and varied alkyl groups on the 3rd nitrogen atom within the benzimidazole structure. Benzimidazolium salts were synthesized by N-alkylation of 1-alkyl benzimidazole with 3-cyanopropyl-bromide. The new salts were characterized by 1 H and 13 C-NMR, FT-IR spectroscopic and elemental analysis techniques. In this study, the enzyme inhibition abilities of seven nitrile substituted benzimidazolium salts were investigated against acetylcholinesterase (AChE) and carbonic anhydrase isoenzymes I and II (hCA I and hCA II). They showed a highly potent inhibition effect on AChE, hCA I and hCA II (Ki values are in the range of 26.71-119.09 nM for AChE, 19.77 to 133.68 nM for hCA I and 13.09 to 266.38 nM for hCA II). Reflecting the binding mode of the synthesized cyanopropyl series, the importance of the 2,3,5,6-tetramethylbenzyl, 3-methylbenzyl and 3-benzyl groups for optimal interactions with target proteins, evaluated by molecular docking studies. At the same time, the docking findings support the inhibition constants (Ki ) values of the related compounds in this study. Potential compounds were also evaluated by their pharmacokinetic properties were predicted.
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Affiliation(s)
- Erkan Öner
- Department of Biochemistry, Faculty of Pharmacy, Adıyaman University, 02040-, Adıyaman, Türkiye
| | - Yetkin Gök
- Department of Chemistry, Faculty of Arts and Science, Inönü University, 44280-, Malatya, Türkiye
- Organic and Organometallic Chemistry Research Laboratory, Department of Chemistry, Faculty of Arts and Science, Inönü University, 44280-, Malatya, Türkiye
| | - Yeliz Demir
- Nihat Delibalta Göle Vocational High School, Ardahan University, 75700, -Ardahan, Türkiye
| | - Tugba Taskin-Tok
- Department of Chemistry, Faculty of Arts and Sciences, Gaziantep University, 27310-, Gaziantep, Türkiye
- Department of Bioinformatics and Computational Biology, Institute of Health Sciences, Gaziantep University, 27310-, Gaziantep, Türkiye
| | - Aydın Aktaş
- Organic and Organometallic Chemistry Research Laboratory, Department of Chemistry, Faculty of Arts and Science, Inönü University, 44280-, Malatya, Türkiye
- Vocational School of Health Service, Inonu University, 44280-, Malatya, Türkiye
| | - İlhami Gülçin
- Department of Chemistry, Faculty of Science, Atatürk University, 25240-, Erzurum, Türkiye
| | - Serap Yalın
- Department of Biochemistry, Faculty of Pharmacy, Mersin University, Türkiye
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4
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Gök Y, Taslimi P, Şen B, Bal S, Aktaş A, Aygün M, Sadeghi M, Gülçin İ. Design, Synthesis, Characterization, Crystal Structure, In silico Studies, and Inhibitory Properties of the PEPPSI Type Pd(II)NHC Complexes Bearing Chloro/Fluorobenzyl Group. Bioorg Chem 2023; 135:106513. [PMID: 37030104 DOI: 10.1016/j.bioorg.2023.106513] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2023] [Revised: 02/26/2023] [Accepted: 03/29/2023] [Indexed: 04/03/2023]
Abstract
This work contains synthesis, characterization, crystal structure, and biological activity of a new series of the PEPPSI type Pd(II)NHC complexes [(NHC)Pd(II)(3-Cl-py)]. NMR, FTIR, and elemental analysis techniques were used to characterize all (NHC)Pd(II)(3-Cl-py) complexes. Also, molecular and crystal structures of complex 1c were established by single-crystal X-ray diffraction. Regarding the X-ray studies, the palladium(II) atom has a slightly distorted square-planar coordination environment. Additionally, the enzyme inhibitory effect of new (NHC)Pd(II)(3-Cl-py) complexes (1a-1g) was studied. They exhibited highly potent inhibition effect on acetylcholinesterase (AChE), butyrylcholinesterase (BChE) and carbonic anhydrases (hCAs) (Ki values are in the range of 0.08 ± 0.01 to 0.65 ± 0.06 µM, 10.43 ± 0.98 to 22.48 ± 2.01 µM, 6.58 ± 0.30 to 10.88 ± 1.01 µM and 6.34 ± 0.37 to 9.02 ± 0.72 µM for AChE, BChE, hCA I, and hCA II, respectively). Based on the molecular docking, among the seven synthesized complexes, 1c, 1b, 1e, and 1a significantly inhibited AChE, BChE, hCA I, and hCA II enzymes, respectively. The findings highpoint that (NHC)Pd(II)(3-Cl-py) complexes can be considered as possible inhibitors via metabolic enzyme inhibition.
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5
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Fluorinated benzimidazolium salts: Synthesis, characterization, molecular docking studies and inhibitory properties against some metabolic enzymes. J Fluor Chem 2023. [DOI: 10.1016/j.jfluchem.2023.110094] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/10/2023]
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6
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Karaca EÖ, Bingöl Z, Gürbüz N, Özdemir İ, Gülçin İ. Vinyl functionalized 5,6-dimethylbenzimidazolium salts: Synthesis and biological activities. J Biochem Mol Toxicol 2023; 37:e23255. [PMID: 36424355 DOI: 10.1002/jbt.23255] [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: 03/17/2022] [Revised: 09/23/2022] [Accepted: 11/15/2022] [Indexed: 11/27/2022]
Abstract
A series of vinyl functionalized 5,6-dimethylbenzimidazolium salts are synthesized. All compounds were fully characterized by elemental analyses, MS, 1 H-NMR, 13 C-NMR, and IR spectroscopy techniques. Enzyme inhibition is a very active area of research in drug design and development. In this study, the synthesized novel benzimidazolium salts were evaluated toward the human erythrocyte carbonic anhydrase I (hCA I), and II (hCA II) isoenzymes, acetylcholinesterase (AChE) and butyrylcholinesterase (BChE) enzymes. They demonstrated highly potent inhibition ability against hCA I with Ki values of 484.8 ± 62.6-1389.7 ± 243.2 nM, hCA II with Ki values of 298.9 ± 55.7-926.1 ± 330.0 nM, α-glycosidase with Ki values of 170.3 ± 27-760.1 ± 269 μM, AChE with Ki values of 27.1 ± 3-77.6 ± 1.7 nM, and BChE with Ki values of 21.0 ± 5-61.3 ± 15 nM. As a result, novel vinyl functionalized 5,6-dimethylbenzimidazolium salts (1a-g) exhibited effective inhibition profiles toward studied metabolic enzymes. Therefore, we believe that these results may contribute to the development of new drugs particularly to treat some global disorders including glaucoma, Alzheimer's disease, and diabetes.
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Affiliation(s)
- Emine Ö Karaca
- Catalysis Research and Application Center, İnönü University, Malatya, Turkey.,Drug Application and Research Center, İnönü University, Malatya, Turkey
| | - Zeynebe Bingöl
- Tokat Vocational School of Health Services, Department of Medical Services and Techniques, Gaziosmanpasa University, Tokat, Turkey
| | - Nevin Gürbüz
- Catalysis Research and Application Center, İnönü University, Malatya, Turkey.,Drug Application and Research Center, İnönü University, Malatya, Turkey.,Department of Chemistry, Faculty of Science and Art, İnönü University, Malatya, Turkey
| | - İsmail Özdemir
- Catalysis Research and Application Center, İnönü University, Malatya, Turkey.,Drug Application and Research Center, İnönü University, Malatya, Turkey.,Department of Chemistry, Faculty of Science and Art, İnönü University, Malatya, Turkey
| | - İlhami Gülçin
- Department of Chemistry, Faculty of Sciences, Ataturk University, Erzurum, Turkey
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7
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Hamide M, Gök Y, Demir Y, Sevinçek R, Taskin-Tok T, Tezcan B, Aktaş A, Gülçin İ, Aygün M, Güzel B. Benzimidazolium Salts Containing Trifluoromethoxybenzyl: Synthesis, Characterization, Crystal Structure, Molecular Docking Studies and Enzymes Inhibitory Properties. Chem Biodivers 2022; 19:e202200257. [PMID: 36260838 DOI: 10.1002/cbdv.202200257] [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: 03/21/2022] [Accepted: 10/19/2022] [Indexed: 01/07/2023]
Abstract
The method for producing 4-trifluoromethoxybenzyl substituted benzimidazolium salts is described in this article. The method is based on the reaction of 4-trifluoromethoxybenzyl substituent alkylating agent with 1-alkylbenzimidazole. This method yielded 1-(4-trifluoromethoxybenzyl)-3-alkylbenzimidazolium bromide salts. These benzimidazolium salts were characterized by using 1 H-NMR, 13 C-NMR, FT-IR spectroscopy, and elemental analysis techniques. The crystal structure of 1f was enlightened by single crystal X-ray diffraction studies. Also, the enzyme inhibition effects of the synthesised compounds were investigated. They demonstrated highly potent inhibition effect on acetylcholinesterase (AChE) and carbonic anhydrases (hCAs) (Ki values are in the range of 7.24±0.99 to 39.12±5.66 nM, 5.57±0.96 to 43.07±11.76 nM, and 4.38±0.43 to 18.68±3.60 nM for AChE, hCA I, and hCA II, respectively). In molecular docking study, the interactions of active compounds showing activity against AChE and hCAs enzymes were examined. The most active compound 1f has -10.90 kcal/mol binding energy value against AChE enzyme, and the potential structure compound 1e, which has activity against hCA I and hCA II enzymes, was -7.51 and -8.93 kcal/mol, respectively.
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Affiliation(s)
- Mahmut Hamide
- Department of Chemistry, Faculty of Arts and Science, Cukurova University, 01330-, Adana, Türkiye
| | - Yetkin Gök
- Department of Chemistry, Faculty of Arts and Science, Inönü University, 44280-, Malatya, Türkiye
| | - Yeliz Demir
- Nihat Delibalta Göle Vocational High School, Ardahan University, 75700-, Ardahan, Türkiye
| | - Resul Sevinçek
- Dokuz Eylül University, Faculty of Science, Department of Physics, 35160-, Buca, İzmir, Türkiye
| | - Tugba Taskin-Tok
- Department of Chemistry, Faculty of Arts and Sciences, Gaziantep University, 27310-, Gaziantep, Türkiye.,Department of Bioinformatics and Computational Biology, Institute of Health Sciences, Gaziantep University, 27310-, Gaziantep, Türkiye
| | - Burcu Tezcan
- Department of Chemistry, Faculty of Arts and Science, Cukurova University, 01330-, Adana, Türkiye
| | - Aydın Aktaş
- Vocational School of Health Service, Inonu University, 44280-, Malatya, Türkiye
| | - İlhami Gülçin
- Department of Chemistry, Faculty of Science, Atatürk University, 25240-, Erzurum, Türkiye
| | - Muhittin Aygün
- Dokuz Eylül University, Faculty of Science, Department of Physics, 35160-, Buca, İzmir, Türkiye
| | - Bilgehan Güzel
- Department of Chemistry, Faculty of Arts and Science, Cukurova University, 01330-, Adana, Türkiye
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8
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Hamide M, Gök Y, Demir Y, Yakalı G, Tok TT, Aktaş A, Sevinçek R, Güzel B, Gülçin İ. Pentafluorobenzyl-substituted benzimidazolium salts: Synthesis, characterization, crystal structures, computational studies and inhibitory properties of some metabolic enzymes. J Mol Struct 2022. [DOI: 10.1016/j.molstruc.2022.133266] [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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9
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Aktaş A, Yakalı G, Demir Y, Gülçin İ, Aygün M, Gök Y. The palladium-based complexes bearing 1,3-dibenzylbenzimidazolium with morpholine, triphenylphosphine, and pyridine derivate ligands: synthesis, characterization, structure and enzyme inhibitions. Heliyon 2022; 8:e10625. [PMID: 36185151 PMCID: PMC9520214 DOI: 10.1016/j.heliyon.2022.e10625] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2022] [Revised: 07/17/2022] [Accepted: 09/08/2022] [Indexed: 11/19/2022] Open
Abstract
The palladium-based complexes bearing N-heterocyclic carbene (NHC) ligand have long attracted attention as active catalysts for many catalytic reactions. Recently, the biological activities of these complexes, which are stable to air and moisture, have also been wondered. With the aim, we report the synthesis of a series of (NHC)Pd(Br2)(L) complexes (NHC: 1,3-dibenzylbenzimidazolium, L: morpholine, triphenylphosphine, pyridine, 3-chloropyridine, and 2-aminopyridine). All complexes were characterized by NMR (1H and 13C), FTIR spectroscopic and elemental analysis techniques. In addition, the single crystal structures of the complex 3, 4, and 6 were determined through single crystal x-ray crystallographic method. Furthermore, the carbonic anhydrase I and II isoenzymes (hCAs) and acetylcholinesterase (AChE) inhibition effects of these palladium-based complexes bearing NHC ligand were investigated. They showed highly potent inhibition effect with Ki values are between 10.06 ± 1.49-68.56 ± 11.53 nM for hCA I isoenzyme, 7.74 ± 0.66 to 49.39 ± 6.50 nM for hCA II isoenzyme and 22.83 ± 3.21 to 64.09 ± 9.05 nM for AChE enzyme.
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Affiliation(s)
- Aydın Aktaş
- Inonu University, Vocational School of Health Service, 44280, Malatya, Turkey
| | - Gül Yakalı
- Department of Engineering Sciences, Faculty of Engineering, Izmir Katip Celebi University, 35620, Izmir, Turkey
| | - Yeliz Demir
- Department of Pharmacy Services, Nihat Delibalta Göle Vocational High School, Ardahan University, 75000, Ardahan, Turkey
| | - İlhami Gülçin
- Atatürk University, Faculty of Science, Department of Chemistry, 25240, Erzurum, Turkey
| | - Muhittin Aygün
- Department of Physics, Faculty of Arts and Sciences, Dokuz Eylül University, 35150, Izmir, Turkey
| | - Yetkin Gök
- Department of Chemistry, Faculty of Science and Arts, Inonu University, 44280, Malatya, Turkey
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10
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Tezcan B, Gök Y, Sevinçek R, Taslimi P, Taskin‐Tok T, Aktaş A, Güzel B, Aygün M, Gülçin I. Benzimidazolium salts bearing the trifluoromethyl group as organofluorine compounds: Synthesis, characterization, crystal structure, in silico study, and inhibitory profiles against acetylcholinesterase and α‐glycosidase. J Biochem Mol Toxicol 2022; 36:e23001. [DOI: 10.1002/jbt.23001] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2021] [Revised: 12/16/2021] [Accepted: 01/28/2022] [Indexed: 02/02/2023]
Affiliation(s)
- Burcu Tezcan
- Department of Chemistry, Faculty of Arts and Science Cukurova University Adana Turkey
| | - Yetkin Gök
- Department of Chemistry, Faculty of Arts and Science Inonu University Malatya Turkey
| | - Resul Sevinçek
- Department of Physics, Faculty of Science Dokuz Eylul University İzmir Buca Turkey
| | - Parham Taslimi
- Department of Biotechnology, Faculty of Science Bartin University Bartin Turkey
| | - Tugba Taskin‐Tok
- Department of Chemistry, Faculty of Arts and Sciences Gaziantep University Gaziantep Turkey
- Department of Bioinformatics and Computational Biology Institute of Health Sciences, Gaziantep University Gaziantep Turkey
| | - Aydın Aktaş
- Department of Pathology, Vocational School of Health Service Inonu University Malatya Turkey
| | - Bilgehan Güzel
- Department of Chemistry, Faculty of Arts and Science Cukurova University Adana Turkey
| | - Muhittin Aygün
- Department of Physics, Faculty of Science Dokuz Eylul University İzmir Buca Turkey
| | - İlhami Gülçin
- Department of Chemistry, Faculty of Science Atatürk University Erzurum Turkey
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11
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Osmaniye D, Evren AE, Sağlık BN, Levent S, Özkay Y, Kaplancıklı ZA. Design, synthesis, biological activity, molecular docking, and molecular dynamics of novel benzimidazole derivatives as potential AChE/MAO-B dual inhibitors. Arch Pharm (Weinheim) 2021; 355:e2100450. [PMID: 34931332 DOI: 10.1002/ardp.202100450] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2021] [Revised: 12/02/2021] [Accepted: 12/03/2021] [Indexed: 01/06/2023]
Abstract
To develop new acetylcholinesterase (AChE)-monoamine oxidase-B (MAO-B) dual inhibitors against Alzheimer's disease, the benzimidazole ring, which has a propargyl side chain with previously proven selective MAO-B inhibitory activity, was used as the main structure. Moreover, like donepezil, it was thought that the enzyme AChE would provide π-π interactions with the peripheral anionic side in this structure. Piperazine derivatives were chosen for the cationic active site. The synthesis of the compounds was carried out in five steps. The structures of the compounds were determined using 1 H-NMR (nuclear magnetic resonance), 13 C-NMR, and high-resolution mass spectrometry spectroscopic methods. First, the in vitro AChE, butyrylcholinesterase (BChE), MAO-A, and MAO-B inhibitory potentials of the obtained compounds were investigated. As a result of activity tests, compounds 5b, 5e, 5g, and 5h showed inhibitory activity against AChE; compounds 5e and 5g showed inhibitory activity against MAO-B. None of the compounds showed inhibitory activity against BChE or MAO-A. Compounds 5e and 5g showed dual inhibition. Among these compounds, compound 5g had inhibition potential similar to that of donepezil and selegiline. For compound 5g, further kinetic studies and Aβ-plaque inhibitory potentials were investigated using in vitro methods. Molecular docking studies were performed using both AChE and hMAO-B crystals to elucidate the compound's interactions with the enzyme active site. The binding modes of the compound on AChE were fully elucidated by molecular dynamics studies.
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Affiliation(s)
- Derya Osmaniye
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Anadolu University, Eskişehir, Turkey.,Doping and Narcotic Compounds Analysis Laboratory, Faculty of Pharmacy, Anadolu University, Eskişehir, Turkey
| | - Asaf E Evren
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Anadolu University, Eskişehir, Turkey.,Vocational School of Health Services, Department of Pharmacy Services, Bilecik Şeyh Edebali University, Bilecik, Turkey
| | - Begüm N Sağlık
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Anadolu University, Eskişehir, Turkey.,Doping and Narcotic Compounds Analysis Laboratory, Faculty of Pharmacy, Anadolu University, Eskişehir, Turkey
| | - Serkan Levent
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Anadolu University, Eskişehir, Turkey.,Doping and Narcotic Compounds Analysis Laboratory, Faculty of Pharmacy, Anadolu University, Eskişehir, Turkey
| | - Yusuf Özkay
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Anadolu University, Eskişehir, Turkey.,Doping and Narcotic Compounds Analysis Laboratory, Faculty of Pharmacy, Anadolu University, Eskişehir, Turkey
| | - Zafer A Kaplancıklı
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Anadolu University, Eskişehir, Turkey
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12
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Bal S, Demirci Ö, Şen B, Taşkın Tok T, Taslimi P, Aktaş A, Gök Y, Aygün M, Gülçin İ. Silver
N
‐heterocyclic carbene complexes bearing fluorinated benzyl group: Synthesis, characterization, crystal structure, computational studies, and inhibitory properties against some metabolic enzymes. Appl Organomet Chem 2021. [DOI: 10.1002/aoc.6312] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Affiliation(s)
- Selma Bal
- Department of Chemistry, Faculty of Science and Arts University of Kahramanmaraş Sütçü Imam Kahramanmaraş Turkey
| | - Özlem Demirci
- Department of Chemistry, Faculty of Science and Arts Inonu University Malatya Turkey
| | - Betül Şen
- Faculty of Science, Department of Physics Dokuz Eylül University İzmir Turkey
| | - Tuğba Taşkın Tok
- Faculty of Arts and Sciences, Department of Chemistry Gaziantep University Gaziantep Turkey
- Institute of Health Sciences, Department of Bioinformatics and Computational Biology Gaziantep University Gaziantep Turkey
| | - Parham Taslimi
- Department of Biotechnology, Faculty of Science Bartin University Bartin Turkey
- Department of Chemistry, Faculty of Science Istinye University Istanbul Turkey
| | - Aydın Aktaş
- Department of Chemistry, Faculty of Science and Arts Inonu University Malatya Turkey
- Vocational School of Health Service Inonu University Malatya Turkey
| | - Yetkin Gök
- Department of Chemistry, Faculty of Science and Arts Inonu University Malatya Turkey
| | - Muhittin Aygün
- Faculty of Science, Department of Physics Dokuz Eylül University İzmir Turkey
| | - İlhami Gülçin
- Faculty of Science, Department of Chemistry Atatürk University Erzurum Turkey
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