1
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Chang Y, Liu L, Peng W, Lin L, Chan Y, Tsai F. Stille coupling for the synthesis of isoflavones by a reusable palladium catalyst in water. J CHIN CHEM SOC-TAIP 2021. [DOI: 10.1002/jccs.202000478] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Ya‐Ting Chang
- Institute of Organic and Polymeric Materials National Taipei University of Technology Taipei Taiwan
| | - Ling‐Jun Liu
- Institute of Organic and Polymeric Materials National Taipei University of Technology Taipei Taiwan
| | - Wen‐Sheng Peng
- Institute of Organic and Polymeric Materials National Taipei University of Technology Taipei Taiwan
| | - Lin‐Ting Lin
- Department of Chemistry National Taiwan University Taipei Taiwan
| | - Yi‐Tsu Chan
- Department of Chemistry National Taiwan University Taipei Taiwan
| | - Fu‐Yu Tsai
- Institute of Organic and Polymeric Materials National Taipei University of Technology Taipei Taiwan
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2
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Mengheres G, Rice CR, Olajide OA, Hemming K. Synthesis of novel isoflavone/benzo-δ-sultam hybrids as potential anti-inflammatory drugs. Bioorg Med Chem Lett 2021; 34:127761. [PMID: 33359607 DOI: 10.1016/j.bmcl.2020.127761] [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: 09/02/2020] [Revised: 12/15/2020] [Accepted: 12/20/2020] [Indexed: 10/22/2022]
Abstract
A small series of novel isoflavone/benzo-δ-sultam hybrids was synthesised and evaluated as potential anti-inflammatory and neuroprotective drugs in LPS-activated BV2 microglia. The benzo-δ-sultam core was constructed in a two-step reaction by coupling 2-halobenzenesulfonamide derivatives with terminal alkynes, followed by a 6-endo-dig cyclisation. The synthesised compounds, including precursors and hybrids, were tested for their ability to inhibit NO and TNF-α production in LPS-stimulated BV2 microglial cells, and the results are promising. The most potent hybrid reduces the NO production to 41%, and the TNF-α to 34% at 20 µM final concentration in the well.
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Affiliation(s)
- Gabriel Mengheres
- Department of Chemical Sciences, School of Applied Sciences, University of Huddersfield, Huddersfield HD1 3DH, United Kingdom.
| | - Craig R Rice
- Department of Chemical Sciences, School of Applied Sciences, University of Huddersfield, Huddersfield HD1 3DH, United Kingdom
| | - Olumayokun A Olajide
- Department of Pharmacy, School of Applied Sciences, University of Huddersfield, Huddersfield HD1 3DH, United Kingdom
| | - Karl Hemming
- Department of Chemical Sciences, School of Applied Sciences, University of Huddersfield, Huddersfield HD1 3DH, United Kingdom.
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3
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Yang F, Zhang Y, Hu MQ, Dai KL, Yu LF, Liu T, Tang J. A One-Pot Approach to Construct 3-(2-Methoxypyridin-3-yl)-4H-chromen-4-ones via Meinwald Rearrangement/Intramolecular Demethylation Annulation of Epoxides. HETEROCYCLES 2021. [DOI: 10.3987/com-21-14459] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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4
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Uddin MS, Mamun AA, Rahman MA, Kabir MT, Alkahtani S, Alanazi IS, Perveen A, Ashraf GM, Bin-Jumah MN, Abdel-Daim MM. Exploring the Promise of Flavonoids to Combat Neuropathic Pain: From Molecular Mechanisms to Therapeutic Implications. Front Neurosci 2020; 14:478. [PMID: 32587501 PMCID: PMC7299068 DOI: 10.3389/fnins.2020.00478] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2020] [Accepted: 04/17/2020] [Indexed: 01/10/2023] Open
Abstract
Neuropathic pain (NP) is the result of irregular processing in the central or peripheral nervous system, which is generally caused by neuronal injury. The management of NP represents a great challenge owing to its heterogeneous profile and the significant undesirable side effects of the frequently prescribed psychoactive agents, including benzodiazepines (BDZ). Currently, several established drugs including antidepressants, anticonvulsants, topical lidocaine, and opioids are used to treat NP, but they exert a wide range of adverse effects. To reduce the burden of adverse effects, we need to investigate alternative therapeutics for the management of NP. Flavonoids are the most common secondary metabolites of plants used in folkloric medicine as tranquilizers, and have been claimed to have a selective affinity to the BDZ binding site. Several studies in animal models have reported that flavonoids can reduce NP. In this paper, we emphasize the potentiality of flavonoids for the management of NP.
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Affiliation(s)
- Md Sahab Uddin
- Department of Pharmacy, Southeast University, Dhaka, Bangladesh.,Pharmakon Neuroscience Research Network, Dhaka, Bangladesh
| | - Abdullah Al Mamun
- Department of Pharmacy, Southeast University, Dhaka, Bangladesh.,Pharmakon Neuroscience Research Network, Dhaka, Bangladesh
| | - Md Ataur Rahman
- Center for Neuroscience, Brain Science Institute, Korea Institute of Science and Technology, Seoul, South Korea
| | | | - Saad Alkahtani
- Department of Zoology, College of Science, King Saud University, Riyadh, Saudi Arabia
| | - Ibtesam S Alanazi
- Department of Biology, Faculty of Sciences, Univesity of Hafr Al Batin, Hafr Al Batin, Saudi Arabia
| | - Asma Perveen
- Glocal School of Life Sciences, Glocal University, Saharanpur, India
| | - Ghulam Md Ashraf
- King Fahd Medical Research Center, King Abdulaziz University, Jeddah, Saudi Arabia.,Department of Medical Laboratory Technology, Faculty of Applied Medical Sciences, King Abdulaziz University, Jeddah, Saudi Arabia
| | - May N Bin-Jumah
- Department of Biology, College of Science, Princess Nourah bint Abdulrahman University, Riyadh, Saudi Arabia
| | - Mohamed M Abdel-Daim
- Department of Zoology, College of Science, King Saud University, Riyadh, Saudi Arabia.,Pharmacology Department, Faculty of Veterinary Medicine, Suez Canal University, Ismailia, Egypt
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5
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Alizadeh A, Bagherinejad A. A Catalyst‐Free Synthetic Route to Modified Isoflavone
via
Multi‐Component Reaction. ChemistrySelect 2020. [DOI: 10.1002/slct.201904674] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Abdolali Alizadeh
- Department of ChemistryTarbiat Modares University, P.O. Box 14115-175 Tehran Iran
| | - Akram Bagherinejad
- Department of ChemistryTarbiat Modares University, P.O. Box 14115-175 Tehran Iran
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6
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Liu J, Ba D, Chen Y, Wen S, Cheng G. Synthesis of 3-(2-quinolyl) chromones from ynones and quinoline N-oxides via tandem reactions under transition metal- and additive-free conditions. Chem Commun (Camb) 2020; 56:4078-4081. [DOI: 10.1039/c9cc09460a] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
The synthesis of 3-(2-quinolyl) chromones from ynones and quinoline N-oxides via a sequential [3+2] cycloaddition/ring-opening/O-arylation reaction under transition metal- and additive-free conditions is reported.
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Affiliation(s)
- Jing Liu
- College of Materials Science & Engineering
- Huaqiao University
- Xiamen 361021
- China
| | - Dan Ba
- College of Materials Science & Engineering
- Huaqiao University
- Xiamen 361021
- China
| | - Yanhui Chen
- College of Materials Science & Engineering
- Huaqiao University
- Xiamen 361021
- China
| | - Si Wen
- College of Materials Science & Engineering
- Huaqiao University
- Xiamen 361021
- China
| | - Guolin Cheng
- College of Materials Science & Engineering
- Huaqiao University
- Xiamen 361021
- China
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7
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Zebrafish behavioural profiling identifies GABA and serotonin receptor ligands related to sedation and paradoxical excitation. Nat Commun 2019; 10:4078. [PMID: 31501447 PMCID: PMC6733874 DOI: 10.1038/s41467-019-11936-w] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2019] [Accepted: 08/13/2019] [Indexed: 02/08/2023] Open
Abstract
Anesthetics are generally associated with sedation, but some anesthetics can also increase brain and motor activity—a phenomenon known as paradoxical excitation. Previous studies have identified GABAA receptors as the primary targets of most anesthetic drugs, but how these compounds produce paradoxical excitation is poorly understood. To identify and understand such compounds, we applied a behavior-based drug profiling approach. Here, we show that a subset of central nervous system depressants cause paradoxical excitation in zebrafish. Using this behavior as a readout, we screened thousands of compounds and identified dozens of hits that caused paradoxical excitation. Many hit compounds modulated human GABAA receptors, while others appeared to modulate different neuronal targets, including the human serotonin-6 receptor. Ligands at these receptors generally decreased neuronal activity, but paradoxically increased activity in the caudal hindbrain. Together, these studies identify ligands, targets, and neurons affecting sedation and paradoxical excitation in vivo in zebrafish. Some anesthetics despite being generally associated with sedation, can also increase brain activity—a phenomenon called paradoxical excitation. The authors identified dozens of compounds that generally decrease neuronal activity, but increase activity in the caudal hindbrain of zebrafish.
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8
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Solomon VR, Tallapragada VJ, Chebib M, Johnston G, Hanrahan JR. GABA allosteric modulators: An overview of recent developments in non-benzodiazepine modulators. Eur J Med Chem 2019; 171:434-461. [DOI: 10.1016/j.ejmech.2019.03.043] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2018] [Revised: 02/17/2019] [Accepted: 03/17/2019] [Indexed: 01/13/2023]
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9
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Qian J, Lin Z, Wang Z, Peng Z, Wu L, Lu P, Wang Y. Copper-Carbene-Triggered Electrophilic Cyclization of o-Hydroxyarylenaminones with 3-Diazoindolin-2-imines: Synthesis of 3-Indolyl-4H-chromen-4-ones and Pyrido[2,3-b:6,5-b′]diindoles. J Org Chem 2019; 84:6395-6404. [DOI: 10.1021/acs.joc.9b00755] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Jing Qian
- Department of Chemistry, Zhejiang University, Hangzhou 310027, P. R. China
| | - Zhenwei Lin
- Department of Chemistry, Zhejiang University, Hangzhou 310027, P. R. China
| | - Zaibin Wang
- Department of Chemistry, Zhejiang University, Hangzhou 310027, P. R. China
| | - Zhixing Peng
- Department of Chemistry, Zhejiang University, Hangzhou 310027, P. R. China
| | - Li Wu
- Department of Chemistry, Zhejiang University, Hangzhou 310027, P. R. China
| | - Ping Lu
- Department of Chemistry, Zhejiang University, Hangzhou 310027, P. R. China
| | - Yanguang Wang
- Department of Chemistry, Zhejiang University, Hangzhou 310027, P. R. China
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10
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Reductive Amination as an Aminomethylation Method for Isoflavone Ring B. Chem Nat Compd 2016. [DOI: 10.1007/s10600-016-1782-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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11
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Hanrahan JR, Chebib M, Johnston GAR. Interactions of flavonoids with ionotropic GABA receptors. ADVANCES IN PHARMACOLOGY (SAN DIEGO, CALIF.) 2014; 72:189-200. [PMID: 25600371 DOI: 10.1016/bs.apha.2014.10.007] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
In this overview, we highlight some recent advances in the interaction of natural and synthetic flavonoids with ionotropic GABA receptors. Examples of positive, negative, and neutralizing allosteric modulators as well as allosteric agonists are given. Flavonoids appear to act via multiple binding sites on GABA receptors. Unraveling these active sites remains a major task.
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Affiliation(s)
- Jane R Hanrahan
- Faculty of Pharmacy, The University of Sydney, Sydney, New South Wales, Australia
| | - Mary Chebib
- Faculty of Pharmacy, The University of Sydney, Sydney, New South Wales, Australia
| | - Graham A R Johnston
- School of Medical Sciences, Pharmacology, The University of Sydney, Sydney, New South Wales, Australia.
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12
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Rueda DC, De Mieri M, Hering S, Hamburger M. HPLC-based activity profiling for GABAA receptor modulators in Adenocarpus cincinnatus. JOURNAL OF NATURAL PRODUCTS 2014; 77:640-649. [PMID: 24571311 DOI: 10.1021/np500016z] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
In a two-microelectrode voltage clamp assay with Xenopus laevis oocytes, a dichloromethane extract of Adenocarpus cincinnatus roots and tubers (Leguminosae) enhanced the GABA-induced chloride current (IGABA) through receptors of the subtype α1β2γ2s by 126.5 ± 25.1% when tested at 100 μg/mL. By means of HPLC-based activity profiling, 15 flavonoid and isoflavonoid derivatives, including eight new compounds, were identified in the active fractions of the extract. Isoflavone 11 and pterocarpans 2 and 8 showed promising activity in the oocyte assay, with EC50 values between 2.8 ± 1.4 and 18.8 ± 2.3 μM. Maximal potentiation of IGABA ranged between 490% and 640%. This is the first report of pterocarpans as GABAA receptor modulators.
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Affiliation(s)
- Diana C Rueda
- Division of Pharmaceutical Biology, University of Basel , Klingelbergstrasse 50, 4056 Basel, Switzerland
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13
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Bensulong S, Boonsombat J, Ruchirawat S. DBU-mediated regioselective intramolecular cyclization/dehydration of ortho diketo phenoxyethers: a synthesis of 2,3-substituted γ-benzopyranones. Tetrahedron 2013. [DOI: 10.1016/j.tet.2013.07.104] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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14
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Zaninetti R, Cortese SV, Aprile S, Massarotti A, Canonico PL, Sorba G, Grosa G, Genazzani AA, Pirali T. A Concise Synthesis of Pyrazole Analogues of Combretastatin A1 as Potent Anti-Tubulin Agents. ChemMedChem 2013; 8:633-43. [DOI: 10.1002/cmdc.201200561] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2012] [Revised: 01/23/2013] [Indexed: 01/22/2023]
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15
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Zhou ZZ, Yan GH, Chen WH, Yang XM. Microwave-Assisted Efficient Synthesis of 2-Hydroxydeoxybenzoins from the Alkali Degradation of Readily Prepared 3-Aryl-4-hydroxycoumarins in Water. Chem Pharm Bull (Tokyo) 2013; 61:1166-72. [DOI: 10.1248/cpb.c13-00604] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Affiliation(s)
- Zhong-Zhen Zhou
- School of Pharmaceutical Sciences, Southern Medical University
| | - Guang-Hua Yan
- School of Pharmaceutical Sciences, Southern Medical University
| | - Wen-Hua Chen
- School of Pharmaceutical Sciences, Southern Medical University
| | - Xue-Mei Yang
- School of Pharmaceutical Sciences, Southern Medical University
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16
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Palladium-catalyzed oxidative arylation of chromones via a double C–H activation: an expedient approach to flavones. Tetrahedron Lett 2012. [DOI: 10.1016/j.tetlet.2012.03.100] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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17
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Abstract
Benzodiazepines are the most widely prescribed class of psychoactive drugs in current therapeutic use, despite the important unwanted side effects that they produce, such as sedation, myorelaxation, ataxia, amnesia, and ethanol and barbiturate potentiation and tolerance. They exert their therapeutic effects via binding to the benzodiazepine binding site of gamma-aminobutyric acid (GABA) type A receptors, and allosterically modulating the chloride flux through the ion channel complex. First isolated from plants used as tranquilizers in folkloric medicine, some natural flavonoids have been shown to possess selective affinity for the benzodiazepine binding site with a broad spectrum of central nervous system effects. Since the initial search for alternative benzodiazepine ligands amongst the flavonoids, a list of successful synthetic derivatives has been generated with enhanced activities. This review provides an update on research developments that have established the activity of natural and synthetic flavonoids on GABA type A receptors. Flavonoids are prominent drugs in the treatment of mental disorders, and can also be used as tools to study modulatory sites at GABA type A receptors and to develop GABA type A selective agents further.
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Affiliation(s)
- Cristina Wasowski
- Instituto de Química y Fisicoquímica Biológicas, Facultad de Farmacia y Bioquímica, Universidad de Buenos Aires, Buenos Aires, Argentina
| | - Mariel Marder
- Instituto de Química y Fisicoquímica Biológicas, Facultad de Farmacia y Bioquímica, Universidad de Buenos Aires, Buenos Aires, Argentina
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