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Guo Z, Peng J, Zhou Z, Wang F, He M, Lu S, Chen X. Benzorhodol derived far-red/near-infrared fluorescent probes for selective and sensitive detection of butyrylcholinesterase activity in living cells and the non-alcoholic fatty liver of zebrafish. ANALYTICAL METHODS : ADVANCING METHODS AND APPLICATIONS 2024; 16:4054-4059. [PMID: 38869016 DOI: 10.1039/d4ay00662c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2024]
Abstract
Liver diseases are a growing public health concern and the development of non-alcoholic fatty liver disease (NAFLD) has a significant impact on human metabolism. Butyrylcholinesterase (BChE) is a vital biomarker for NAFLD, making it crucial to monitor BChE activity with high sensitivity and selectivity. In this study, we designed and synthesized a range of benzorhodol-derived far-red/near-infrared fluorescent probes, FRBN-B, NF-SB, and NF-B, for the quantitative detection and imaging of BChE. These probes differed in the size of their conjugated systems and in the number of incorporated cyclopropanecarboxylates, acting as the recognition site for BChE. Comprehensive characterization showed that FRBN-B and NF-SB fluorescence was triggered by BChE-mediated hydrolysis, while an additional cyclopropanecarboxylate in NF-B impeded the fluorescence release. High selectivity towards BChE was observed for FRBN-B and NF-SB, with a detection limit of 7.2 × 10-3 U mL-1 for FRBN-B and 1.9 × 10-3 U mL-1 for NF-SB. The probes were further employed in the evaluation of BChE inhibitor efficacy and imaging of intracellular BChE activity. Additionally, FRBN-B was utilized for imaging the BChE activity level in liver tissues in zebrafish, demonstrating its potential as a diagnostic tool for NAFLD.
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Affiliation(s)
- Ziwei Guo
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering, Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM), Nanjing Tech University, Nanjing 211816, China.
| | - Junqian Peng
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering, Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM), Nanjing Tech University, Nanjing 211816, China.
| | - Zhiqiang Zhou
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering, Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM), Nanjing Tech University, Nanjing 211816, China.
| | - Fang Wang
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering, Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM), Nanjing Tech University, Nanjing 211816, China.
| | - Mingfang He
- Institute of Translational Medicine, College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, Nanjing 211816, China
| | - Sheng Lu
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering, Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM), Nanjing Tech University, Nanjing 211816, China.
| | - Xiaoqiang Chen
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering, Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM), Nanjing Tech University, Nanjing 211816, China.
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Mousavi H, Rimaz M, Zeynizadeh B. Practical Three-Component Regioselective Synthesis of Drug-Like 3-Aryl(or heteroaryl)-5,6-dihydrobenzo[ h]cinnolines as Potential Non-Covalent Multi-Targeting Inhibitors To Combat Neurodegenerative Diseases. ACS Chem Neurosci 2024; 15:1828-1881. [PMID: 38647433 DOI: 10.1021/acschemneuro.4c00055] [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] [Indexed: 04/25/2024] Open
Abstract
Neurodegenerative diseases (NDs) are one of the prominent health challenges facing contemporary society, and many efforts have been made to overcome and (or) control it. In this research paper, we described a practical one-pot two-step three-component reaction between 3,4-dihydronaphthalen-1(2H)-one (1), aryl(or heteroaryl)glyoxal monohydrates (2a-h), and hydrazine monohydrate (NH2NH2•H2O) for the regioselective preparation of some 3-aryl(or heteroaryl)-5,6-dihydrobenzo[h]cinnoline derivatives (3a-h). After synthesis and characterization of the mentioned cinnolines (3a-h), the in silico multi-targeting inhibitory properties of these heterocyclic scaffolds have been investigated upon various Homo sapiens-type enzymes, including hMAO-A, hMAO-B, hAChE, hBChE, hBACE-1, hBACE-2, hNQO-1, hNQO-2, hnNOS, hiNOS, hPARP-1, hPARP-2, hLRRK-2(G2019S), hGSK-3β, hp38α MAPK, hJNK-3, hOGA, hNMDA receptor, hnSMase-2, hIDO-1, hCOMT, hLIMK-1, hLIMK-2, hRIPK-1, hUCH-L1, hPARK-7, and hDHODH, which have confirmed their functions and roles in the neurodegenerative diseases (NDs), based on molecular docking studies, and the obtained results were compared with a wide range of approved drugs and well-known (with IC50, EC50, etc.) compounds. In addition, in silico ADMET prediction analysis was performed to examine the prospective drug properties of the synthesized heterocyclic compounds (3a-h). The obtained results from the molecular docking studies and ADMET-related data demonstrated that these series of 3-aryl(or heteroaryl)-5,6-dihydrobenzo[h]cinnolines (3a-h), especially hit ones, can really be turned into the potent core of new drugs for the treatment of neurodegenerative diseases (NDs), and/or due to the having some reactionable locations, they are able to have further organic reactions (such as cross-coupling reactions), and expansion of these compounds (for example, with using other types of aryl(or heteroaryl)glyoxal monohydrates) makes a new avenue for designing novel and efficient drugs for this purpose.
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Affiliation(s)
- Hossein Mousavi
- Department of Organic Chemistry, Faculty of Chemistry, Urmia University, Urmia 5756151818, Iran
| | - Mehdi Rimaz
- Department of Chemistry, Payame Noor University, P.O. Box 19395-3697, Tehran 19395-3697, Iran
| | - Behzad Zeynizadeh
- Department of Organic Chemistry, Faculty of Chemistry, Urmia University, Urmia 5756151818, Iran
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Zhang SG, Wan YQ, Zhang WH. Discovery of Dehydroabietylamine Derivatives as Antibacterial and Antifungal Agents. JOURNAL OF NATURAL PRODUCTS 2024; 87:924-934. [PMID: 38513270 DOI: 10.1021/acs.jnatprod.3c01213] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/23/2024]
Abstract
A diverse array of biologically active derivatives was derived by modifying the chemically active sites of dehydroabietylamine. Herein, we describe the synthesis of a new series of C-19-arylated dehydroabietylamine derivatives using a palladium-catalyzed C(sp3)-H activation reaction. Five analogues (3b, 3d, 3h, 3n, and 4a) exhibited antibacterial activity against Escherichia coli. Compound 4a exhibited strong inhibitory activity against DNA Topo II and Topo IV. Molecular docking modeling indicated that it can bind effectively to the target through interactions with amino acid residues. The synthesized compounds were tested in vitro for their antifungal activity against six common phytopathogenic fungi. The mechanism of action of compound 4c against Rhizoctorzia solani was investigated, revealing that it disrupts the morphology of the mycelium and enhances cell membrane permeability.
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Affiliation(s)
- Shu-Guang Zhang
- Jiangsu Key Laboratory of Pesticide, College of Sciences, Nanjing Agricultural University, Nanjing 210095, People's Republic of China
| | - Yu-Qiang Wan
- Jiangsu Key Laboratory of Pesticide, College of Sciences, Nanjing Agricultural University, Nanjing 210095, People's Republic of China
| | - Wei-Hua Zhang
- Jiangsu Key Laboratory of Pesticide, College of Sciences, Nanjing Agricultural University, Nanjing 210095, People's Republic of China
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4
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Petrova AV, Poptsov AI, Heise NV, Csuk R, Kazakova OB. Diethoxyphosphoryloxy-oleanolic acid is a nanomolar-inhibitor of butyrylcholinesterase. Chem Biol Drug Des 2024; 103:e14506. [PMID: 38480508 DOI: 10.1111/cbdd.14506] [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: 11/15/2023] [Revised: 01/22/2024] [Accepted: 03/06/2024] [Indexed: 03/27/2024]
Abstract
A series of new betulin, lupeol, erythrodiol, and oleanolic acid phosphoryloxy- and furoyloxy-derivatives has been synthesized and their structure was confirmed by NMR spectroscopy. Synthesized compounds were subjected to Ellman's assays to determine their ability to inhibit the enzymes AChE and BChE. Among them, diethoxyphosphoryloxy-oleanolic acid inhibited BChE with a value of 99%, thereby acting as a mixed-type inhibitor holding very low Ki values of Ki = 6.59 nM and Ki ' = 1.97 nM, respectively.
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Affiliation(s)
- Anastasiya V Petrova
- Ufa Institute of Chemistry, Ufa Federal Research Centre, Russian Academy of Science, Ufa, Russia
| | - Alexandr I Poptsov
- Ufa Institute of Chemistry, Ufa Federal Research Centre, Russian Academy of Science, Ufa, Russia
| | - Niels V Heise
- Martin-Luther-University Halle-Wittenberg, Organic Chemistry, Halle (Saale), Germany
| | - René Csuk
- Martin-Luther-University Halle-Wittenberg, Organic Chemistry, Halle (Saale), Germany
| | - Oxana B Kazakova
- Ufa Institute of Chemistry, Ufa Federal Research Centre, Russian Academy of Science, Ufa, Russia
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Tretyakova E, Heise NV, Csuk R, Kazakova O. Inhibitory properties of quinopimaric acid derivatives towards cholinesterases. Nat Prod Res 2023:1-9. [PMID: 37812150 DOI: 10.1080/14786419.2023.2266107] [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: 05/03/2023] [Accepted: 09/27/2023] [Indexed: 10/10/2023]
Abstract
A series of new diterpene quinopimaric acid derivatives modified at the hydroxyl group with different pharmacophore fragments has been synthesised and their (along with previously obtained compounds) inhibitory properties towards cholinesterases were studied. Thereby an indole-3-acetyl derivative 7 and a propargyl substituted compound 28 were shown to be excellent and acetylcholinesterase-selective inhibitors. Both compounds inhibited the enzyme as a mixed type inhibitor, and Ki values of 0.41 and 0.44 µM and Ki' values of 0.98 and 2.26 µM were determined. The binding interactions between all active compounds and ligands protein were confirmed through molecular docking study.
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Affiliation(s)
- Elena Tretyakova
- Ufa Institute of Chemistry of the Ufa Federal Research Centre of the Russian Academy of Sciences, Ufa, Russian Federation
| | - Niels V Heise
- Martin-Luther-University Halle-Wittenberg, Halle (Saale), Germany
| | - René Csuk
- Martin-Luther-University Halle-Wittenberg, Halle (Saale), Germany
| | - Oxana Kazakova
- Ufa Institute of Chemistry of the Ufa Federal Research Centre of the Russian Academy of Sciences, Ufa, Russian Federation
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Pramanik S, Saha P, Ghosh P, Mukhopadhyay C. Steric-Hindrance-Induced Diastereoselective Radical Nitration of 3-Alkylidene-2-oxindoles Followed by Tosylhydrazine-Mediated Sulfonation. J Org Chem 2023; 88:3386-3402. [PMID: 36847251 DOI: 10.1021/acs.joc.2c01523] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/01/2023]
Abstract
Metal-free radical nitration of the β C-H bond of 3-alkylidene-2-oxindoles with tert-butyl nitrite (TBN) has been explored. Interestingly, (E)-3-(2-(aryl)-2-oxoethylidene)oxindole and (E)-3-ylidene oxindole give different diastereomers on nitration. The mechanistic investigation revealed that the diastereoselectivity was controlled by the size of the functional group. Another transformation of 3-(nitroalkylidene) oxindole into 3-(tosylalkylidene) oxindole was performed through metal and oxidant-free tosylhydrazine-mediated sulfonation. Both methods have the advantages of readily available starting materials and operational simplicity.
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Affiliation(s)
- Sayan Pramanik
- Department of Chemistry, University of Calcutta, 92 APC Road, Kolkata 700009, India
| | - Pinaki Saha
- Department of Chemistry, R. K. Mission Residential College, Narendrapur, Kolkata 700103, India
| | - Prasanta Ghosh
- Department of Chemistry, R. K. Mission Residential College, Narendrapur, Kolkata 700103, India
| | - Chhanda Mukhopadhyay
- Department of Chemistry, University of Calcutta, 92 APC Road, Kolkata 700009, India
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Xu RR, Wen D, Qi X, Wu XF. Palladium-catalyzed cascade Heck-type cyclization and reductive aminocarbonylation for the synthesis of functionalized amides. Org Biomol Chem 2022; 20:2605-2608. [PMID: 35293928 DOI: 10.1039/d2ob00299j] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
A palladium-catalyzed Heck/carbonylative cyclization process has been explored for the synthesis of functionalized amides. By using nitroarenes as readily accessible nitrogen sources, a variety of amide products were obtained in moderate to excellent yields with good functional group compatibility. Furthermore, a late-stage modification of a natural molecule is also achieved by this protocol.
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Affiliation(s)
- Ren-Rui Xu
- Department of Chemistry, Key Laboratory of Surface & Interface Science of Polymer Materials of Zhejiang Province, Zhejiang Sci-Tech University, Hangzhou, Zhejiang 310018, People's Republic of China.
| | - Dan Wen
- Department of Chemistry, Key Laboratory of Surface & Interface Science of Polymer Materials of Zhejiang Province, Zhejiang Sci-Tech University, Hangzhou, Zhejiang 310018, People's Republic of China.
| | - Xinxin Qi
- Department of Chemistry, Key Laboratory of Surface & Interface Science of Polymer Materials of Zhejiang Province, Zhejiang Sci-Tech University, Hangzhou, Zhejiang 310018, People's Republic of China.
| | - Xiao-Feng Wu
- Dalian National Laboratory for Clean Energy, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 116023, Dalian, Liaoning, China. .,Leibniz-Institut für Katalyse e.V., Albert-Einstein-Straße 29a, Rostock 18059, Germany.
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Heise N, Friedrich S, Temml V, Schuster D, Siewert B, Csuk R. N-methylated diazabicyclo[3.2.2]nonane substituted triterpenoic acids are excellent, hyperbolic and selective inhibitors for butyrylcholinesterase. Eur J Med Chem 2022; 227:113947. [PMID: 34731766 DOI: 10.1016/j.ejmech.2021.113947] [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: 07/12/2021] [Revised: 10/19/2021] [Accepted: 10/21/2021] [Indexed: 11/19/2022]
Abstract
Triterpenoic acids (oleanolic, ursolic, betulinic, platanic and glycyrrhetinic acid) were acetylated and coupled with 1,3- or 1,4-diazabicyclo[3.2.2]nonanes to yield amides. Reaction of these amides with methyl iodide at the distal nitrogen of the bicyclic system gave the corresponding quaternary ammonium salts. These compounds were shown to act as excellent inhibitors of the enzyme butyrylcholinesterase (BChE) while being only weak inhibitors for acetylcholinesterase (AChE). Evaluation of the enzyme kinetics revealed these compounds to act as hyperbolic inhibitors for BChE while the results from molecular modeling gave an explanation for their selectivity between AChE and BChE.
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Affiliation(s)
- Niels Heise
- Organic Chemistry, Martin-Luther University Halle-Wittenberg, Kurt-Mothes-Str. 2, D-06120, Halle (Saale), Germany
| | - Sander Friedrich
- Organic Chemistry, Martin-Luther University Halle-Wittenberg, Kurt-Mothes-Str. 2, D-06120, Halle (Saale), Germany
| | - Veronika Temml
- Pharmacy/ Pharmaceutical and Medicinal Chemistry Institute, Paracelsus Medical University Salzburg, Stubergasse 21, A-5020, Salzburg, Austria
| | - Daniela Schuster
- Pharmacy/ Pharmaceutical and Medicinal Chemistry Institute, Paracelsus Medical University Salzburg, Stubergasse 21, A-5020, Salzburg, Austria
| | - Bianka Siewert
- Pharmacy/Pharmacognosy, Center for Molecular Biosciences Innsbruck (CMBI), University of Innsbruck, Innrain 80/82, A-6020, Innsbruck, Austria
| | - René Csuk
- Organic Chemistry, Martin-Luther University Halle-Wittenberg, Kurt-Mothes-Str. 2, D-06120, Halle (Saale), Germany.
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Zheng YN, Zheng H, Li T, Wei WT. Recent Advances in Copper-Catalyzed C-N Bond Formation Involving N-Centered Radicals. CHEMSUSCHEM 2021; 14:5340-5358. [PMID: 34750973 DOI: 10.1002/cssc.202102243] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/19/2021] [Revised: 11/09/2021] [Indexed: 06/13/2023]
Abstract
C-N bonds are pervasive throughout organic-based materials, natural products, pharmaceutical compounds, and agricultural chemicals. Considering the widespread importance of C-N bonds, the development of greener and more convenient ways to form C-N bonds, especially in late-stage synthesis, has become one of the hottest research goals in synthetic chemistry. Copper-catalyzed radical reactions involving N-centered radicals have emerged as a sustainable and promising approach to build C-N bonds. As a chemically popular and diverse radical species, N-centered radicals have been used for all kinds of reactions for C-N bond formation by taking advantage of their inherently incredible reactive flexibility. Copper is also the most abundant and economic catalyst with the most relevant activity for facilitating the synthesis of valuable compounds. Therefore, the aim of the present Review was to illustrate recent and significant advances in C-N bond formation methods and to understand the unique advantages of copper catalysis in the generation of N-centered radicals since 2016. To provide an ease of understanding for the readers, this Review was organized based on the types of nitrogen sources (amines, amides, sulfonamides, oximes, hydrazones, azides, and tert-butyl nitrite).
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Affiliation(s)
- Yan-Nan Zheng
- Key Laboratory of Advanced Mass Spectrometry and Molecular Analysis of Zhejiang Province, School of Materials Science and Chemical Engineering, Ningbo University, Ningbo, Zhejiang, 315211, P. R. China
| | - Hongxing Zheng
- Institution of Functional Organic Molecules and Materials, School of Chemistry and Chemical Engineering, Liaocheng University, Liaocheng, Shandong, 252059, P. R. China
- College of Chemistry and Pharmaceutical Engineering, Nanyang Normal University, Nanyang, Henan, 473061, P. R. China
| | - Ting Li
- College of Chemistry and Pharmaceutical Engineering, Nanyang Normal University, Nanyang, Henan, 473061, P. R. China
| | - Wen-Ting Wei
- Key Laboratory of Advanced Mass Spectrometry and Molecular Analysis of Zhejiang Province, School of Materials Science and Chemical Engineering, Ningbo University, Ningbo, Zhejiang, 315211, P. R. China
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Kazakova O, Smirnova I, Lopatina T, Giniyatullina G, Petrova A, Khusnutdinova E, Csuk R, Serbian I, Loesche A. Synthesis and cholinesterase inhibiting potential of A-ring azepano- and 3-amino-3,4-seco-triterpenoids. Bioorg Chem 2020; 101:104001. [PMID: 32683137 DOI: 10.1016/j.bioorg.2020.104001] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2020] [Revised: 05/20/2020] [Accepted: 06/07/2020] [Indexed: 01/07/2023]
Abstract
In this study, a series of A-ring azepano- and 3-amino-3,4-seco-derivatives were synthesized from betulin, oleanolic, ursolic and glycyrrhetinic acids aiming to develop new cholinesterase inhibitors. Azepanobetulin, azepanoerythrodiol and azepanouvaol were modified to give amide and tosyl derivatives, while azepano-anhydrobetulines and azepano-glycyrrhetols were obtained for the first time. Oleanane and ursane type 3-amino-3,4-seco-4(23)-en triterpenic alcohols were synthesized by reducing the corresponding 2-cyano-derivatives accessible from Beckmann type 2 rearrangements. The compounds were screened in colorimetric Ellman's assays to determine their ability to act as inhibitors for the enzymes acetylcholinesterase (AChE, from electric eel) and butyrylcholinesterase (BChE, from equine serum). While most of these compounds were only moderate inhibitors for AChE, several of them were shown to be inhibitors for BChE acting as mixed-type inhibitors. Azepanobetulin 1, its C28-amide derivatives 7 and 8, azepano-11-deoxo-glycyrrhetol 12 and azepanouvaol 18 held inhibition constants Ki ranging between 0.21 ± 0.06 to 0.68 ± 0.19 μM. Thus, they were approximately 4 to 10 times more active than standard galantamine hydrobromide. For all of the compounds reasonably high docking scores for BChE were obtained being in good agreement with the experimental results from the enzymatic studies. As a result, A-ring azepano-triterpenoids were found to be new scaffolds for the development of BChE inhibitors.
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Affiliation(s)
- Oxana Kazakova
- Ufa Institute of Chemistry UFRC RAS, pr. Octyabrya 71, 450054 Ufa, Russian Federation.
| | - Irina Smirnova
- Ufa Institute of Chemistry UFRC RAS, pr. Octyabrya 71, 450054 Ufa, Russian Federation
| | - Tatyana Lopatina
- Ufa Institute of Chemistry UFRC RAS, pr. Octyabrya 71, 450054 Ufa, Russian Federation
| | | | - Anastasiya Petrova
- Ufa Institute of Chemistry UFRC RAS, pr. Octyabrya 71, 450054 Ufa, Russian Federation
| | - Elmira Khusnutdinova
- Ufa Institute of Chemistry UFRC RAS, pr. Octyabrya 71, 450054 Ufa, Russian Federation
| | - René Csuk
- Martin-Luther-University Halle-Wittenberg, Organic Chemistry, Kurt-Mothes-Str. 2, D-06120 Halle (Saale), Germany.
| | - Immo Serbian
- Martin-Luther-University Halle-Wittenberg, Organic Chemistry, Kurt-Mothes-Str. 2, D-06120 Halle (Saale), Germany
| | - Anne Loesche
- Martin-Luther-University Halle-Wittenberg, Organic Chemistry, Kurt-Mothes-Str. 2, D-06120 Halle (Saale), Germany
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Smirnova IE, Kazakova OB, Loesche A, Hoenke S, Csuk R. Evaluation of cholinesterase inhibitory activity and cytotoxicity of synthetic derivatives of di- and triterpene metabolites from Pinus silvestris and Dipterocarpus alatus resins. Med Chem Res 2020. [DOI: 10.1007/s00044-020-02566-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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