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Steinmüller SAM, Odaybat M, Galli G, Prischich D, Fuchter MJ, Decker M. Arylazobenzimidazoles: versatile visible-light photoswitches with tuneable Z-isomer stability. Chem Sci 2024; 15:5360-5367. [PMID: 38577348 PMCID: PMC10988581 DOI: 10.1039/d3sc05246j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2023] [Accepted: 02/28/2024] [Indexed: 04/06/2024] Open
Abstract
Benzimidazole heterocycles are of great importance in medicinal chemistry due to their applicability to a wide range of pharmacological targets, therefore representing a prototypical "privileged structure". In photopharmacology, azoheteroarene photoswitches have emerged as valuable tools for a variety of applications due to the high tuneability of their photophysical properties. Benzimidazole-based photoswitches could therefore enable the optically-controlled investigation of many pharmacological targets and find application in materials science. Here we report a combined experimental and computational investigation of such arylazobenzimidazoles, which allowed us to identify derivatives with near-quantitative bidirectional photoswitching using visible light and highly tuneable Z-isomer stability. We further demonstrate that arylazobenzimidazoles bearing a free benzimidazole N-H group not only exhibit efficient bidirectional photoswitching, but also excellent thermal Z-isomer stability, contrary to previously reported fast-relaxing Z-isomers of N-H azoheteroarenes. Finally, we describe derivatives which can be reversibly isomerized with cyan and red light, thereby enabling significantly "red-shifted" photocontrol over prior azoheteroarenes. The understanding gained in this study should enable future photopharmacological efforts by employing photoswitches based on the privileged benzimidazole structure.
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Affiliation(s)
- Sophie A M Steinmüller
- Pharmazeutische und Medizinische Chemie, Institut für Pharmazie und Lebensmittelchemie, Julius-Maximilians-Universität Würzburg Am Hubland 97074 Würzburg Germany
| | - Magdalena Odaybat
- Department of Chemistry, Molecular Sciences Research Hub, White City Campus, Imperial College London London W12 0BZ UK
| | - Giulia Galli
- Pharmazeutische und Medizinische Chemie, Institut für Pharmazie und Lebensmittelchemie, Julius-Maximilians-Universität Würzburg Am Hubland 97074 Würzburg Germany
| | - Davia Prischich
- Department of Chemistry, Molecular Sciences Research Hub, White City Campus, Imperial College London London W12 0BZ UK
| | - Matthew J Fuchter
- Department of Chemistry, Molecular Sciences Research Hub, White City Campus, Imperial College London London W12 0BZ UK
| | - Michael Decker
- Pharmazeutische und Medizinische Chemie, Institut für Pharmazie und Lebensmittelchemie, Julius-Maximilians-Universität Würzburg Am Hubland 97074 Würzburg Germany
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2
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Pyka P, Haberek W, Więcek M, Szymanska E, Ali W, Cios A, Jastrzębska-Więsek M, Satała G, Podlewska S, Di Giacomo S, Di Sotto A, Garbo S, Karcz T, Lambona C, Marocco F, Latacz G, Sudoł-Tałaj S, Mordyl B, Głuch-Lutwin M, Siwek A, Czarnota-Łydka K, Gogola D, Olejarz-Maciej A, Wilczyńska-Zawal N, Honkisz-Orzechowska E, Starek M, Dąbrowska M, Kucwaj-Brysz K, Fioravanti R, Nasim MJ, Hittinger M, Partyka A, Wesołowska A, Battistelli C, Zwergel C, Handzlik J. First-in-Class Selenium-Containing Potent Serotonin Receptor 5-HT 6 Agents with a Beneficial Neuroprotective Profile against Alzheimer's Disease. J Med Chem 2024; 67:1580-1610. [PMID: 38190615 PMCID: PMC10823479 DOI: 10.1021/acs.jmedchem.3c02148] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2023] [Revised: 12/08/2023] [Accepted: 12/14/2023] [Indexed: 01/10/2024]
Abstract
Alzheimer's disease (AD) has a complex and not-fully-understood etiology. Recently, the serotonin receptor 5-HT6 emerged as a promising target for AD treatment; thus, here a new series of 5-HT6R ligands with a 1,3,5-triazine core and selenoether linkers was explored. Among them, the 2-naphthyl derivatives exhibited strong 5-HT6R affinity and selectivity over 5-HT1AR (13-15), 5-HT7R (14 and 15), and 5-HT2AR (13). Compound 15 displayed high selectivity for 5-HT6R over other central nervous system receptors and exhibited low risk of cardio-, hepato-, and nephrotoxicity and no mutagenicity, indicating its "drug-like" potential. Compound 15 also demonstrated neuroprotection against rotenone-induced neurotoxicity as well as antioxidant and glutathione peroxidase (GPx)-like activity and regulated antioxidant and pro-inflammatory genes and NRF2 nuclear translocation. In rats, 15 showed satisfying pharmacokinetics, penetrated the blood-brain barrier, reversed MK-801-induced memory impairment, and exhibited anxiolytic-like properties. 15's neuroprotective and procognitive-like effects, stronger than those of the approved drug donepezil, may pave the way for the use of selenotriazines to inhibit both causes and symptoms in AD therapy.
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Affiliation(s)
- Patryk Pyka
- Department
of Technology and Biotechnology of Drugs, Jagiellonian University Medical College, Medyczna 9, 30-688 Kraków, Poland
- Division
of Bioorganic Chemistry, School of Pharmacy, Saarland University, Campus B 2.1, D-66123 Saarbrücken, Germany
- Doctoral
School of Medical and Health Sciences, Jagiellonian
University Medical College, św. Łazarza 15, 31-530 Kraków, Poland
| | - Wawrzyniec Haberek
- Department
of Technology and Biotechnology of Drugs, Jagiellonian University Medical College, Medyczna 9, 30-688 Kraków, Poland
- Division
of Bioorganic Chemistry, School of Pharmacy, Saarland University, Campus B 2.1, D-66123 Saarbrücken, Germany
- Doctoral
School of Medical and Health Sciences, Jagiellonian
University Medical College, św. Łazarza 15, 31-530 Kraków, Poland
| | - Małgorzata Więcek
- Department
of Technology and Biotechnology of Drugs, Jagiellonian University Medical College, Medyczna 9, 30-688 Kraków, Poland
| | - Ewa Szymanska
- Department
of Technology and Biotechnology of Drugs, Jagiellonian University Medical College, Medyczna 9, 30-688 Kraków, Poland
| | - Wesam Ali
- Department
of Technology and Biotechnology of Drugs, Jagiellonian University Medical College, Medyczna 9, 30-688 Kraków, Poland
- Division
of Bioorganic Chemistry, School of Pharmacy, Saarland University, Campus B 2.1, D-66123 Saarbrücken, Germany
| | - Agnieszka Cios
- Department
of Clinical Pharmacy, Faculty of Pharmacy, Jagiellonian University Medical College, Medyczna 9, 30-688 Kraków, Poland
| | - Magdalena Jastrzębska-Więsek
- Department
of Clinical Pharmacy, Faculty of Pharmacy, Jagiellonian University Medical College, Medyczna 9, 30-688 Kraków, Poland
| | - Grzegorz Satała
- Department
of Medicinal Chemistry, Maj Institute of Pharmacology, Polish Academy of Sciences, Smętna 12, 31-343 Kraków, Poland
| | - Sabina Podlewska
- Department
of Medicinal Chemistry, Maj Institute of Pharmacology, Polish Academy of Sciences, Smętna 12, 31-343 Kraków, Poland
| | - Silvia Di Giacomo
- Department
of Physiology and Pharmacology “V. Erspamer”, Sapienza University of Rome, Piazzale Aldo Moro 5, 00185 Rome, Italy
- Italian
National Institute of Health (ISS), Viale Regina Elena 299, 00161 Rome, Italy
| | - Antonella Di Sotto
- Department
of Physiology and Pharmacology “V. Erspamer”, Sapienza University of Rome, Piazzale Aldo Moro 5, 00185 Rome, Italy
| | - Sabrina Garbo
- Department
of Molecular Medicine, Istituto Pasteur Italia, Fondazione Cenci-Bolognetti, Sapienza University of Rome, Viale Regina Elena 324, 00161 Rome, Italy
| | - Tadeusz Karcz
- Department
of Technology and Biotechnology of Drugs, Jagiellonian University Medical College, Medyczna 9, 30-688 Kraków, Poland
| | - Chiara Lambona
- Department
of Drug Chemistry and Technologies, Sapienza
University of Rome, Piazzale Aldo Moro 5, 00185 Rome, Italy
| | - Francesco Marocco
- Department
of Molecular Medicine, Istituto Pasteur Italia, Fondazione Cenci-Bolognetti, Sapienza University of Rome, Viale Regina Elena 324, 00161 Rome, Italy
| | - Gniewomir Latacz
- Department
of Technology and Biotechnology of Drugs, Jagiellonian University Medical College, Medyczna 9, 30-688 Kraków, Poland
| | - Sylwia Sudoł-Tałaj
- Department
of Technology and Biotechnology of Drugs, Jagiellonian University Medical College, Medyczna 9, 30-688 Kraków, Poland
- Doctoral
School of Medical and Health Sciences, Jagiellonian
University Medical College, św. Łazarza 15, 31-530 Kraków, Poland
| | - Barbara Mordyl
- Department
of Pharmacobiology, Faculty of Pharmacy, Jagiellonian University Medical College, Medyczna 9, 30-688 Kraków, Poland
| | - Monika Głuch-Lutwin
- Department
of Pharmacobiology, Faculty of Pharmacy, Jagiellonian University Medical College, Medyczna 9, 30-688 Kraków, Poland
| | - Agata Siwek
- Department
of Pharmacobiology, Faculty of Pharmacy, Jagiellonian University Medical College, Medyczna 9, 30-688 Kraków, Poland
| | - Kinga Czarnota-Łydka
- Department
of Technology and Biotechnology of Drugs, Jagiellonian University Medical College, Medyczna 9, 30-688 Kraków, Poland
- Doctoral
School of Medical and Health Sciences, Jagiellonian
University Medical College, św. Łazarza 15, 31-530 Kraków, Poland
| | - Dawid Gogola
- Department
of Technology and Biotechnology of Drugs, Jagiellonian University Medical College, Medyczna 9, 30-688 Kraków, Poland
- Doctoral
School of Medical and Health Sciences, Jagiellonian
University Medical College, św. Łazarza 15, 31-530 Kraków, Poland
| | - Agnieszka Olejarz-Maciej
- Department
of Technology and Biotechnology of Drugs, Jagiellonian University Medical College, Medyczna 9, 30-688 Kraków, Poland
| | - Natalia Wilczyńska-Zawal
- Department
of Clinical Pharmacy, Faculty of Pharmacy, Jagiellonian University Medical College, Medyczna 9, 30-688 Kraków, Poland
| | - Ewelina Honkisz-Orzechowska
- Department
of Technology and Biotechnology of Drugs, Jagiellonian University Medical College, Medyczna 9, 30-688 Kraków, Poland
| | - Małgorzata Starek
- Department
of Inorganic and Analytical Chemistry, Jagiellonian
University Medical College, Medyczna 9, 30-688 Kraków, Poland
| | - Monika Dąbrowska
- Department
of Inorganic and Analytical Chemistry, Jagiellonian
University Medical College, Medyczna 9, 30-688 Kraków, Poland
| | - Katarzyna Kucwaj-Brysz
- Department
of Technology and Biotechnology of Drugs, Jagiellonian University Medical College, Medyczna 9, 30-688 Kraków, Poland
| | - Rossella Fioravanti
- Department
of Drug Chemistry and Technologies, Sapienza
University of Rome, Piazzale Aldo Moro 5, 00185 Rome, Italy
| | - Muhammad Jawad Nasim
- Division
of Bioorganic Chemistry, School of Pharmacy, Saarland University, Campus B 2.1, D-66123 Saarbrücken, Germany
| | - Marius Hittinger
- Department
of Drug Discovery, Pharmbiotec gGmbH, Nußkopf 39, 66578 Schiffweiler, Germany
- Department
of Drug Delivery, Pharmbiotec gGmbH, Nußkopf 39, 66578 Schiffweiler, Germany
| | - Anna Partyka
- Department
of Clinical Pharmacy, Faculty of Pharmacy, Jagiellonian University Medical College, Medyczna 9, 30-688 Kraków, Poland
| | - Anna Wesołowska
- Department
of Clinical Pharmacy, Faculty of Pharmacy, Jagiellonian University Medical College, Medyczna 9, 30-688 Kraków, Poland
| | - Cecilia Battistelli
- Department
of Molecular Medicine, Istituto Pasteur Italia, Fondazione Cenci-Bolognetti, Sapienza University of Rome, Viale Regina Elena 324, 00161 Rome, Italy
| | - Clemens Zwergel
- Division
of Bioorganic Chemistry, School of Pharmacy, Saarland University, Campus B 2.1, D-66123 Saarbrücken, Germany
- Department
of Drug Chemistry and Technologies, Sapienza
University of Rome, Piazzale Aldo Moro 5, 00185 Rome, Italy
- Department
of Drug Discovery, Pharmbiotec gGmbH, Nußkopf 39, 66578 Schiffweiler, Germany
| | - Jadwiga Handzlik
- Department
of Technology and Biotechnology of Drugs, Jagiellonian University Medical College, Medyczna 9, 30-688 Kraków, Poland
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3
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Steinmüller SAM, Fender J, Deventer MH, Tutov A, Lorenz K, Stove CP, Hislop JN, Decker M. Visible-Light Photoswitchable Benzimidazole Azo-Arenes as β-Arrestin2-Biased Selective Cannabinoid 2 Receptor Agonists. Angew Chem Int Ed Engl 2023; 62:e202306176. [PMID: 37269130 DOI: 10.1002/anie.202306176] [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: 05/03/2023] [Revised: 06/01/2023] [Accepted: 06/02/2023] [Indexed: 06/04/2023]
Abstract
The cannabinoid 2 receptor (CB2 R) has high therapeutic potential for multiple pathogenic processes, such as neuroinflammation. Pathway-selective ligands are needed to overcome the lack of clinical success and to elucidate correlations between pathways and their respective therapeutic effects. Herein, we report the design and synthesis of a photoswitchable scaffold based on the privileged structure of benzimidazole and its application as a functionally selective CB2 R "efficacy-switch". Benzimidazole azo-arenes offer huge potential for the broad extension of photopharmacology to a wide range of optically addressable biological targets. We used this scaffold to develop compound 10 d, a "trans-on" agonist, which serves as a molecular probe to study the β-arrestin2 (βarr2) pathway at CB2 R. βΑrr2 bias was observed in CB2 R internalization and βarr2 recruitment, while no activation occurred when looking at Gα16 or mini-Gαi . Overall, compound 10 d is the first light-dependent functionally selective agonist to investigate the complex mechanisms of CB2 R-βarr2 dependent endocytosis.
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Affiliation(s)
- Sophie A M Steinmüller
- Pharmazeutische und Medizinische Chemie, Institut für Pharmazie und Lebensmittelchemie, Julius-Maximilians-Universität Würzburg, Am Hubland, 97074, Würzburg, Germany
| | - Julia Fender
- Institut für Pharmakologie und Toxikologie, Julius-Maximilians-Universität Würzburg, Versbacher Str. 9, 97078, Würzburg, Germany
| | - Marie H Deventer
- Laboratory of Toxicology, Department of Bioanalysis, Faculty of Pharmaceutical Sciences, Ghent University, Ottergemsesteenweg 460, 9000, Ghent, Belgium
| | - Anna Tutov
- Pharmazeutische und Medizinische Chemie, Institut für Pharmazie und Lebensmittelchemie, Julius-Maximilians-Universität Würzburg, Am Hubland, 97074, Würzburg, Germany
| | - Kristina Lorenz
- Institut für Pharmakologie und Toxikologie, Julius-Maximilians-Universität Würzburg, Versbacher Str. 9, 97078, Würzburg, Germany
- Leibniz-Institut für Analytische Wissenschaften - ISAS-e.V., Bunsen-Kirchhoff-Straße 11, 44139, Dortmund, Germany
| | - Christophe P Stove
- Laboratory of Toxicology, Department of Bioanalysis, Faculty of Pharmaceutical Sciences, Ghent University, Ottergemsesteenweg 460, 9000, Ghent, Belgium
| | - James N Hislop
- School of Medicine, Medical Sciences and Nutrition, Institute of Medical Sciences, University of Aberdeen Foresterhill, Aberdeen, AB25 2ZD, UK
| | - Michael Decker
- Pharmazeutische und Medizinische Chemie, Institut für Pharmazie und Lebensmittelchemie, Julius-Maximilians-Universität Würzburg, Am Hubland, 97074, Würzburg, Germany
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Serotonin 5-HT 6 Receptor Ligands and Butyrylcholinesterase Inhibitors Displaying Antioxidant Activity-Design, Synthesis and Biological Evaluation of Multifunctional Agents against Alzheimer's Disease. Int J Mol Sci 2022; 23:ijms23169443. [PMID: 36012707 PMCID: PMC9409043 DOI: 10.3390/ijms23169443] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2022] [Revised: 08/18/2022] [Accepted: 08/20/2022] [Indexed: 11/17/2022] Open
Abstract
Neurodegeneration leading to Alzheimer’s disease results from a complex interplay of a variety of processes including misfolding and aggregation of amyloid beta and tau proteins, neuroinflammation or oxidative stress. Therefore, to address more than one of these, drug discovery programmes focus on the development of multifunctional ligands, preferably with disease-modifying and symptoms-reducing potential. Following this idea, herein we present the design and synthesis of multifunctional ligands and biological evaluation of their 5-HT6 receptor affinity (radioligand binding assay), cholinesterase inhibitory activity (spectroscopic Ellman’s assay), antioxidant activity (ABTS assay) and metal-chelating properties, as well as a preliminary ADMET properties evaluation. Based on the results we selected compound 14 as a well-balanced and potent 5-HT6 receptor ligand (Ki = 22 nM) and human BuChE inhibitor (IC50 = 16 nM) with antioxidant potential expressed as a reduction of ABTS radicals by 35% (150 μM). The study also revealed additional metal-chelating properties of compounds 15 and 18. The presented compounds modulating Alzheimer’s disease-related processes might be further developed as multifunctional ligands against the disease.
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Xu T, Zhu K, Beautrait A, Vendome J, Borrelli KW, Abel R, Friesner RA, Miller EB. Induced-Fit Docking Enables Accurate Free Energy Perturbation Calculations in Homology Models. J Chem Theory Comput 2022; 18:5710-5724. [PMID: 35972903 DOI: 10.1021/acs.jctc.2c00371] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Homology models have been used for virtual screening and to understand the binding mode of a known active compound; however, rarely have the models been shown to be of sufficient accuracy, comparable to crystal structures, to support free-energy perturbation (FEP) calculations. We demonstrate here that the use of an advanced induced-fit docking methodology reliably enables predictive FEP calculations on congeneric series across homology models ≥30% sequence identity. Furthermore, we show that retrospective FEP calculations on a congeneric series of drug-like ligands are sufficient to discriminate between predicted binding modes. Results are presented for a total of 29 homology models for 14 protein targets, showing FEP results comparable to those obtained using experimentally determined crystal structures for 86% of homology models with template structure sequence identities ranging from 30 to 50%. Implications for the use and validation of homology models in drug discovery projects are discussed.
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Affiliation(s)
- Tianchuan Xu
- Schrödinger, Inc., 1540 Broadway, New York, New York 10036, United States
| | - Kai Zhu
- Schrödinger, Inc., 1540 Broadway, New York, New York 10036, United States
| | | | - Jeremie Vendome
- Schrödinger, Inc., 1540 Broadway, New York, New York 10036, United States
| | - Kenneth W Borrelli
- Schrödinger, Inc., 1540 Broadway, New York, New York 10036, United States
| | - Robert Abel
- Schrödinger, Inc., 1540 Broadway, New York, New York 10036, United States
| | - Richard A Friesner
- Department of Chemistry, Columbia University, 3000 Broadway, MC 3110, New York, New York 10036, United States
| | - Edward B Miller
- Schrödinger, Inc., 1540 Broadway, New York, New York 10036, United States
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Bojić T, Sencanski M, Perovic V, Milicevic J, Glisic S. In Silico Screening of Natural Compounds for Candidates 5HT6 Receptor Antagonists against Alzheimer's Disease. MOLECULES (BASEL, SWITZERLAND) 2022; 27:molecules27092626. [PMID: 35565976 PMCID: PMC9101541 DOI: 10.3390/molecules27092626] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/31/2022] [Revised: 03/31/2022] [Accepted: 04/12/2022] [Indexed: 11/16/2022]
Abstract
Alzheimer's disease (AD), a devastating neurodegenerative disease, is the focus of pharmacological research. One of the targets that attract the most attention for the potential therapy of AD is the serotonin 5HT6 receptor, which is the receptor situated exclusively in CNS on glutamatergic and GABAergic neurons. The neurochemical impact of this receptor supports the hypothesis about its role in cognitive, learning, and memory systems, which are of critical importance for AD. Natural products are a promising source of novel bioactive compounds with potential therapeutic potential as a 5HT6 receptor antagonist in the treatment of AD dementia. The ZINC-natural product database was in silico screened in order to find the candidate antagonists of 5-HT6 receptor against AD. A virtual screening protocol that includes both short-and long-range interactions between interacting molecules was employed. First, the EIIP/AQVN filter was applied for in silico screening of the ZINC database followed by 3D QSAR and molecular docking. Ten best candidate compounds were selected from the ZINC Natural Product database as potential 5HT6 Receptor antagonists and were proposed for further evaluation. The best candidate was evaluated by molecular dynamics simulations and free energy calculations.
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Affiliation(s)
- Tijana Bojić
- Laboratory of Radiobiology and Molecular Genetics-080, Institute of Nuclear Sciences Vinca, National Institute of the Republic of Serbia, University of Belgrade, P.O. Box 522, 11000 Belgrade, Serbia
- Correspondence: (T.B.); (M.S.)
| | - Milan Sencanski
- Laboratory for Bioinformatics and Computational Chemistry, Institute of Nuclear Sciences Vinca, National Institute of the Republic of Serbia, University of Belgrade, P.O. Box 522, 11000 Belgrade, Serbia; (V.P.); (J.M.); (S.G.)
- Correspondence: (T.B.); (M.S.)
| | - Vladimir Perovic
- Laboratory for Bioinformatics and Computational Chemistry, Institute of Nuclear Sciences Vinca, National Institute of the Republic of Serbia, University of Belgrade, P.O. Box 522, 11000 Belgrade, Serbia; (V.P.); (J.M.); (S.G.)
| | - Jelena Milicevic
- Laboratory for Bioinformatics and Computational Chemistry, Institute of Nuclear Sciences Vinca, National Institute of the Republic of Serbia, University of Belgrade, P.O. Box 522, 11000 Belgrade, Serbia; (V.P.); (J.M.); (S.G.)
| | - Sanja Glisic
- Laboratory for Bioinformatics and Computational Chemistry, Institute of Nuclear Sciences Vinca, National Institute of the Republic of Serbia, University of Belgrade, P.O. Box 522, 11000 Belgrade, Serbia; (V.P.); (J.M.); (S.G.)
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Shi NN, Yin XM, Gao WS, Wang JM, Zhang SF, Fan YH, Wang M. Competition between electrocatalytic CO2 reduction and H+ reduction by Cu(II), Co(II) complexes containing redox-active ligand. Inorganica Chim Acta 2021. [DOI: 10.1016/j.ica.2021.120548] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Arrieta-Rodríguez L, Espinoza-Rosales D, Vera G, Cho YH, Cabezas D, Vásquez-Velásquez D, Mella-Raipán J, Lagos CF, Recabarren-Gajardo G. Novel N-Arylsulfonylindoles Targeted as Ligands of the 5-HT 6 Receptor. Insights on the Influence of C-5 Substitution on Ligand Affinity. Pharmaceuticals (Basel) 2021; 14:ph14060528. [PMID: 34206083 PMCID: PMC8227400 DOI: 10.3390/ph14060528] [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: 04/24/2021] [Revised: 05/27/2021] [Accepted: 05/28/2021] [Indexed: 11/18/2022] Open
Abstract
A new series of twenty-two C-5 substituted N-arylsulfonylindoles was prepared with the aim of exploring the influence of C-5 substitution on 5-HT6 receptor affinity. Eleven compounds showed moderate to high affinity at the receptor (Ki = 58–403 nM), with compound 4d being identified as the most potent ligand. However, regarding C-5 substitution, both methoxy and fluorine were detrimental for receptor affinity compared to our previously published unsubstituted compounds. In order to shed light on these observations, we performed docking and molecular dynamics simulations with the most potent compounds of each series (4d and 4l) and PUC-10, a highly active ligand previously reported by our group. The comparison brings about deeper insight about the influence of the C-5 substitution on the binding mode of the ligands, suggesting that these replacements are detrimental to the affinity due to precluding a ligand from reaching deeper inside the binding site. Additionally, CoMFA/CoMSIA studies were performed to systematize the information of the main structural and physicochemical characteristics of the ligands, which are responsible for their biological activity. The CoMFA and CoMSIA models presented high values of q2 (0.653; 0.692) and r2 (0.879; 0.970), respectively. Although the biological activity of the ligands can be explained in terms of the steric and electronic properties, it depends mainly on the electronic nature.
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Affiliation(s)
- Loreto Arrieta-Rodríguez
- Bioactive Heterocycles Synthesis Laboratory (BHSL), Departamento de Farmacia, Facultad de Química y de Farmacia, Pontificia Universidad Católica de Chile, Avenida Vicuña Mackenna 4860, Macul, Santiago 7820436, Chile; (L.A.-R.); (D.E.-R.); (G.V.); (Y.H.C.)
| | - Daniela Espinoza-Rosales
- Bioactive Heterocycles Synthesis Laboratory (BHSL), Departamento de Farmacia, Facultad de Química y de Farmacia, Pontificia Universidad Católica de Chile, Avenida Vicuña Mackenna 4860, Macul, Santiago 7820436, Chile; (L.A.-R.); (D.E.-R.); (G.V.); (Y.H.C.)
| | - Gonzalo Vera
- Bioactive Heterocycles Synthesis Laboratory (BHSL), Departamento de Farmacia, Facultad de Química y de Farmacia, Pontificia Universidad Católica de Chile, Avenida Vicuña Mackenna 4860, Macul, Santiago 7820436, Chile; (L.A.-R.); (D.E.-R.); (G.V.); (Y.H.C.)
| | - Young Hwa Cho
- Bioactive Heterocycles Synthesis Laboratory (BHSL), Departamento de Farmacia, Facultad de Química y de Farmacia, Pontificia Universidad Católica de Chile, Avenida Vicuña Mackenna 4860, Macul, Santiago 7820436, Chile; (L.A.-R.); (D.E.-R.); (G.V.); (Y.H.C.)
| | - David Cabezas
- Instituto de Química y Bioquímica, Facultad de Ciencias, Universidad de Valparaíso, Avenida Gran Bretaña 1111, Valparaíso 2360102, Chile; (D.C.); (J.M.-R.)
- Centro de Investigación Farmacopea Chilena (CIFAR), Universidad de Valparaíso, Santa Marta 183, Valparaíso 2360134, Chile
| | - David Vásquez-Velásquez
- Drug Development Laboratory, Faculty of Chemical and Pharmaceutical Sciences, Universidad de Chile, Sergio Livingstone 1007, Santiago 8380492, Chile;
| | - Jaime Mella-Raipán
- Instituto de Química y Bioquímica, Facultad de Ciencias, Universidad de Valparaíso, Avenida Gran Bretaña 1111, Valparaíso 2360102, Chile; (D.C.); (J.M.-R.)
- Centro de Investigación Farmacopea Chilena (CIFAR), Universidad de Valparaíso, Santa Marta 183, Valparaíso 2360134, Chile
| | - Carlos F. Lagos
- Chemical Biology & Drug Discovery Lab, Escuela de Química y Farmacia, Facultad de Medicina y Ciencia, Universidad San Sebastián, Lota 2465, Providencia, Santiago 7510157, Chile;
| | - Gonzalo Recabarren-Gajardo
- Bioactive Heterocycles Synthesis Laboratory (BHSL), Departamento de Farmacia, Facultad de Química y de Farmacia, Pontificia Universidad Católica de Chile, Avenida Vicuña Mackenna 4860, Macul, Santiago 7820436, Chile; (L.A.-R.); (D.E.-R.); (G.V.); (Y.H.C.)
- Centro Interdisciplinario de Neurociencias, Pontificia Universidad Católica de Chile, Marcoleta 391, Santiago 8330024, Chile
- Correspondence: ; Tel.: +56-2-23541418
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9
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Ujváry I, Christie R, Evans-Brown M, Gallegos A, Jorge R, de Morais J, Sedefov R. DARK Classics in Chemical Neuroscience: Etonitazene and Related Benzimidazoles. ACS Chem Neurosci 2021; 12:1072-1092. [PMID: 33760580 DOI: 10.1021/acschemneuro.1c00037] [Citation(s) in RCA: 46] [Impact Index Per Article: 15.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
Etonitazene and related 2-benzylbenzimidazoles are potent analgetics invented in the research laboratories of the Swiss pharmaceutical giant CIBA in the late 1950s. Though the unprecedented structure distinguishes this class of compounds from poppy-derived and other synthetic analgetics, a range of studies indicate that these drugs are selective μ opioid receptor agonists possessing morphine-like pharmacotoxicological properties in animals as well as humans. Several unscheduled members of this synthetically readily accessible class of opioids that are not controlled under the international and national drug control systems have recently emerged on the illicit drug market. Among them, isotonitazene has been implicated in at least 200 fatalities in Europe and North America. None of the 2-benzylbenzimidazole derivatives have been developed into medicines, but etonitazene and some of its derivatives have been used as receptor probes and in addiction behavior studies in animals. The unique structure has inspired research on such benzimidazoles and related benzimidazolones of which "brorphine" made its debut as one of the newest psychoactive substance to emerge on the illicit opioid drug market in mid-2019. This in-depth review provides a historical introduction, an overview on the chemistry, pharmacological profiles, adverse effects, addiction liability, regulatory status, and the impact on chemical neuroscience of the 2-benzylbenzimidazoles. Structurally related benzimidazoles with opioid and/or analgesic properties are also discussed briefly.
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Affiliation(s)
| | - Rachel Christie
- European Monitoring Centre for Drugs and Drug Addiction, 1249-289 Lisbon, Portugal
| | - Michael Evans-Brown
- European Monitoring Centre for Drugs and Drug Addiction, 1249-289 Lisbon, Portugal
| | - Ana Gallegos
- European Monitoring Centre for Drugs and Drug Addiction, 1249-289 Lisbon, Portugal
| | - Rita Jorge
- European Monitoring Centre for Drugs and Drug Addiction, 1249-289 Lisbon, Portugal
| | - Joanna de Morais
- European Monitoring Centre for Drugs and Drug Addiction, 1249-289 Lisbon, Portugal
| | - Roumen Sedefov
- European Monitoring Centre for Drugs and Drug Addiction, 1249-289 Lisbon, Portugal
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10
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Drug design of new 5-HT 6R antagonists aided by artificial neural networks. J Mol Graph Model 2021; 104:107844. [PMID: 33529936 DOI: 10.1016/j.jmgm.2021.107844] [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: 08/13/2020] [Revised: 01/06/2021] [Accepted: 01/08/2021] [Indexed: 11/23/2022]
Abstract
Alzheimer's Disease (AD) is the most frequent illness and cause of death amongst the age related-neurodegenerative disorders. The Alzheimer's Disease International (ADI) reported in 2019 that over 50 million people were living with dementia in the world and this number could potentially be around 152 million by 2050.5-hydroxtryptamine subtype 6 receptor (5-HT6R) has been identified as a potential anti-amnesic drug target and therefore, the administration of 5-HT6R antagonists can likely mitigate the memory loss and intellectual deterioration associated with AD. Herein, computational tools were applied to design new 5-HT6 antagonists and their biological activity values were predicted by our QSAR model obtained from Artificial Neural Networks (ANN). The proposed compounds here from the QSAR-ANN model presented significant biological activity values and some of them have achieved pKi above 9.00. Furthermore, our results suggest that the presence of halogen atoms (especially bromine) linked to the aromatic ring at para-position (HYD) contribute considerably to the increase of the biological activity values while bulky groups in the PI position do not culminate with the increase antagonist activity of compounds here analyzed. Finally, the ADME/Tox profile as well as the synthetic accessibility of new proposed compounds qualify them to go on further with experimental procedures and thenceforward their antagonist effects can be confirmed.
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11
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Buravchenko GI, Scherbakov AM, Dezhenkova LG, Monzote L, Shchekotikhin AE. Synthesis of 7-amino-6-halogeno-3-phenylquinoxaline-2-carbonitrile 1,4-dioxides: a way forward for targeting hypoxia and drug resistance of cancer cells. RSC Adv 2021; 11:38782-38795. [PMID: 35493230 PMCID: PMC9044171 DOI: 10.1039/d1ra07978f] [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: 10/30/2021] [Accepted: 11/16/2021] [Indexed: 01/01/2023] Open
Abstract
New water-soluble hypoxia activated 7-aminoquinoxaline 1,4-dioxides, prepared by the regioselective Beirut reaction, acted as HIF-1α suppressors and induced apoptosis in hypoxic and MDR cancer cells.
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Affiliation(s)
- Galina I. Buravchenko
- Gause Institute of New Antibiotics, 11 B. Pirogovskaya Street, Moscow 119021, Russia
- Mendeleyev University of Chemical Technology, 9 Miusskaya Square, Moscow 125190, Russia
| | - Alexander M. Scherbakov
- Blokhin National Medical Research Center of Oncology, 24 Kashirskoye Sh., Moscow 115522, Russia
| | - Lyubov G. Dezhenkova
- Gause Institute of New Antibiotics, 11 B. Pirogovskaya Street, Moscow 119021, Russia
| | - Lianet Monzote
- Department of Parasitology, Pedro Kouri Tropical Medicine Institute, Havana, Cuba
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12
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Pomeislová A, Vrzal L, Kozák J, Dobiaš J, Hubálek M, Dvořáková H, Reyes‐Gutiérrez PE, Teplý F, Veverka V. Kinetic Target-Guided Synthesis of Small-Molecule G-Quadruplex Stabilizers. ChemistryOpen 2020; 9:1236-1250. [PMID: 33304739 PMCID: PMC7713561 DOI: 10.1002/open.202000261] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2020] [Revised: 11/02/2020] [Indexed: 12/25/2022] Open
Abstract
The formation of a G-quadruplex motif in the promoter region of the c-MYC protooncogene prevents its expression. Accordingly, G-quadruplex stabilization by a suitable ligand may be a viable approach for anticancer therapy. In our study, we used the 4-(4-methylpiperazin-1-yl)aniline molecule, previously identified as a fragment library screen hit, as a template for the SAR-guided design of a new small library of clickable fragments and subjected them to click reactions, including kinetic target-guided synthesis in the presence of a G-quadruplex forming oligonucleotide Pu24. We tested the clickable fragments and products of click reactions for their G-quadruplex stabilizing activity and determined their mode of binding to the c-MYC G-quadruplex by NMR spectroscopy. The enhanced stabilizing potency of click products in biology assays (FRET, Polymerase extension assay) matched the increased yields of in situ click reactions. In conclusion, we identified the newly synthesized click products of bis-amino derivatives of 4-(4-methylpiperazin-1-yl)aniline as potent stabilizers of c-MYC G-quadruplex, and their further evolution may lead to the development of an efficient tool for cancer treatment.
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Affiliation(s)
- Alice Pomeislová
- Institute of Organic Chemistry and BiochemistryThe Czech Academy of Sciences Flemingovo nam. 2PragueCzech Republic
- Department of Organic ChemistryCharles UniversityPragueCzech Republic
| | - Lukáš Vrzal
- Institute of Organic Chemistry and BiochemistryThe Czech Academy of Sciences Flemingovo nam. 2PragueCzech Republic
- NMR laboratoryUniversity of Chemistry and TechnologyPragueCzech Republic
| | - Jaroslav Kozák
- Institute of Organic Chemistry and BiochemistryThe Czech Academy of Sciences Flemingovo nam. 2PragueCzech Republic
| | - Juraj Dobiaš
- Institute of Organic Chemistry and BiochemistryThe Czech Academy of Sciences Flemingovo nam. 2PragueCzech Republic
| | - Martin Hubálek
- Institute of Organic Chemistry and BiochemistryThe Czech Academy of Sciences Flemingovo nam. 2PragueCzech Republic
| | - Hana Dvořáková
- NMR laboratoryUniversity of Chemistry and TechnologyPragueCzech Republic
| | - Paul E. Reyes‐Gutiérrez
- Institute of Organic Chemistry and BiochemistryThe Czech Academy of Sciences Flemingovo nam. 2PragueCzech Republic
| | - Filip Teplý
- Institute of Organic Chemistry and BiochemistryThe Czech Academy of Sciences Flemingovo nam. 2PragueCzech Republic
| | - Václav Veverka
- Institute of Organic Chemistry and BiochemistryThe Czech Academy of Sciences Flemingovo nam. 2PragueCzech Republic
- Department of Cell BiologyCharles UniversityPragueCzech Republic
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13
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Rizvi SFA, Zhang H, Mehmood S, Sanad M. Synthesis of 99mTc-labeled 2-Mercaptobenzimidazole as a novel radiotracer to diagnose tumor hypoxia. Transl Oncol 2020; 13:100854. [PMID: 32862104 PMCID: PMC7475274 DOI: 10.1016/j.tranon.2020.100854] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2020] [Revised: 07/24/2020] [Accepted: 08/03/2020] [Indexed: 01/04/2023] Open
Abstract
Discovery of 99mTc-labeled imidazole derivatives as a potential radiotracer for hypoxic tumor imaging is considered to be of great interest because of non-invasive detection capabilities. 2-Mercaptobenzimidazole (2-MBI) was successfully synthesized, characterized and radiolabeled with [99mTc (CO)3(H2O)3]+ intermediate to form 99mTc-2-MBI complex with radiochemical purity of ≥95% yield as observed by instant-thin layer chromatography (ITLC) and radio-high performance liquid chromatography (radio-HPLC). The 99mTc-2-MBI complex was observed to be stable in saline and serum with no noticeable decomposition at room temperature and 37 °C, respectively, over a time period of 24 h. Biodistribution results in Balb/c mice bearing S180 tumor show that 99mTc-2-MBI highly internalized in tumor tissue, also possess preferably high tumor/muscle and tumor/blood ratios 4.14 ± 0.77 and 3.91 ± 0.63, respectively at 24 h incubation. Scintigraphic imaging study shows 99mTc-2-MBI is visibly accumulated in hypoxic tumor tissue, suggesting it would be a promising radiotracer for early stage diagnosis of tumor hypoxia. Radiolabeled imidazole derivatives are non-invasive imaging radiotracers Benzoimidazole as basic subunit of biomolecules Hypoxia or oxygen deprivation plays key role in tumor progression and resistance to therapy Imidazole moiety reduce into reactive intermediary metabolites to show high accumulation in viable hypoxic cells 99mTc-2-MBI radiotracer possess enhanced tumor/muscle and tumor/blood ratios
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Affiliation(s)
- Syed Faheem Askari Rizvi
- College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, Gansu, PR China; Isotope Production Group, Chemistry Division, Pakistan Institute of Nuclear Science and Technology (PINSTECH), P.O. Nilore, Islamabad, Punjab, Pakistan
| | - Haixia Zhang
- College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, Gansu, PR China.
| | - Sajid Mehmood
- Isotope Production Group, Chemistry Division, Pakistan Institute of Nuclear Science and Technology (PINSTECH), P.O. Nilore, Islamabad, Punjab, Pakistan
| | - Mahmoud Sanad
- Labeled Compounds Department, Hot Laboratories Center, Atomic Energy Authority, P.O. Box 13759, Cairo, Egypt
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14
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da Silva AP, de Angelo RM, de Paula H, Honório KM, da Silva ABF. Drug design of new 5-HT6 antagonists: a QSAR study of arylsulfonamide derivatives. Struct Chem 2020. [DOI: 10.1007/s11224-020-01513-z] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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15
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Qu Y, Zhao K, Wang C, Wu Y, Xia L, Wu H. Synthesis, crystal structure, fluorescent and electrochemical properties of three silver(I) complexes with 2,2’-(1,4-butanediyl)bis-1,3-benzimidazole bridging ligand. J Mol Struct 2020. [DOI: 10.1016/j.molstruc.2019.127424] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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16
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Vass M, Podlewska S, de Esch IJP, Bojarski AJ, Leurs R, Kooistra AJ, de Graaf C. Aminergic GPCR-Ligand Interactions: A Chemical and Structural Map of Receptor Mutation Data. J Med Chem 2018; 62:3784-3839. [PMID: 30351004 DOI: 10.1021/acs.jmedchem.8b00836] [Citation(s) in RCA: 48] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
The aminergic family of G protein-coupled receptors (GPCRs) plays an important role in various diseases and represents a major drug discovery target class. Structure determination of all major aminergic subfamilies has enabled structure-based ligand design for these receptors. Site-directed mutagenesis data provides an invaluable complementary source of information for elucidating the structural determinants of binding of different ligand chemotypes. The current study provides a comparative analysis of 6692 mutation data points on 34 aminergic GPCR subtypes, covering the chemical space of 540 unique ligands from mutagenesis experiments and information from experimentally determined structures of 52 distinct aminergic receptor-ligand complexes. The integrated analysis enables detailed investigation of structural receptor-ligand interactions and assessment of the transferability of combined binding mode and mutation data across ligand chemotypes and receptor subtypes. An overview is provided of the possibilities and limitations of using mutation data to guide the design of novel aminergic receptor ligands.
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Affiliation(s)
- Márton Vass
- Division of Medicinal Chemistry, Faculty of Sciences, Amsterdam Institute for Molecules, Medicines and Systems (AIMMS) , VU University Amsterdam , 1081HZ Amsterdam , The Netherlands
| | - Sabina Podlewska
- Department of Medicinal Chemistry, Institute of Pharmacology , Polish Academy of Sciences , Smętna 12 , PL31-343 Kraków , Poland
| | - Iwan J P de Esch
- Division of Medicinal Chemistry, Faculty of Sciences, Amsterdam Institute for Molecules, Medicines and Systems (AIMMS) , VU University Amsterdam , 1081HZ Amsterdam , The Netherlands
| | - Andrzej J Bojarski
- Department of Medicinal Chemistry, Institute of Pharmacology , Polish Academy of Sciences , Smętna 12 , PL31-343 Kraków , Poland
| | - Rob Leurs
- Division of Medicinal Chemistry, Faculty of Sciences, Amsterdam Institute for Molecules, Medicines and Systems (AIMMS) , VU University Amsterdam , 1081HZ Amsterdam , The Netherlands
| | - Albert J Kooistra
- Division of Medicinal Chemistry, Faculty of Sciences, Amsterdam Institute for Molecules, Medicines and Systems (AIMMS) , VU University Amsterdam , 1081HZ Amsterdam , The Netherlands.,Department of Drug Design and Pharmacology , University of Copenhagen , Universitetsparken 2 , 2100 Copenhagen , Denmark
| | - Chris de Graaf
- Division of Medicinal Chemistry, Faculty of Sciences, Amsterdam Institute for Molecules, Medicines and Systems (AIMMS) , VU University Amsterdam , 1081HZ Amsterdam , The Netherlands.,Sosei Heptares , Steinmetz Building, Granta Park, Great Abington , Cambridge CB21 6DG , U.K
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17
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Computer-Aided Studies for Novel Arylhydantoin 1,3,5-Triazine Derivatives as 5-HT₆ Serotonin Receptor Ligands with Antidepressive-Like, Anxiolytic and Antiobesity Action In Vivo. Molecules 2018; 23:molecules23102529. [PMID: 30282913 PMCID: PMC6222450 DOI: 10.3390/molecules23102529] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2018] [Revised: 09/22/2018] [Accepted: 09/24/2018] [Indexed: 01/22/2023] Open
Abstract
This study focuses on the design, synthesis, biological evaluation, and computer-aided structure-activity relationship (SAR) analysis for a novel group of aromatic triazine-methylpiperazines, with an hydantoin spacer between 1,3,5-traizine and the aromatic fragment. New compounds were synthesized and their affinities for serotonin 5-HT₆, 5-HT1A, 5-HT2A, 5-HT₇, and dopamine D₂ receptors were evaluated. The induced-fit docking (IFD) procedure was performed to explore the 5-HT₆ receptor conformation space employing two lead structures. It resulted in a consistent binding mode with the activity data. For the most active compounds found in each modification line, anti-obesity and anti-depressive-like activity in vivo, as well as "druglikeness" in vitro, were examined. Two 2-naphthyl compounds (18 and 26) were identified as the most active 5-HT₆R agents within each lead modification line, respectively. The 5-(2-naphthyl)hydantoin derivative 26, the most active one in the series (5-HT₆R: Ki = 87 nM), displayed also significant selectivity towards competitive G-protein coupled receptors (6⁻197-fold). Docking studies indicated that the hydantoin ring is stabilized by hydrogen bonding, but due to its different orientation, the hydrogen bonds form with S5.44 and N6.55 or Q6.58 for 18 and 26, respectively. Compound 26 exerted anxiolytic-like and antidepressant-like activities. Importantly, it demonstrated anti-obesity properties in animals fed palatable feed, and did not show toxic effects in vitro.
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18
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Alam MT, Maiti S, Mal P. An Intramolecular C(sp2
)-H Amidation Using N
-Iodosuccinimide. European J Org Chem 2018. [DOI: 10.1002/ejoc.201800688] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Md Toufique Alam
- School of Chemical Sciences; National Institute of Science Education and Research (NISER); Homi Bhabha National Institute (HBNI); 752050 Bhubaneswar, PO Bhimpur-Padanpur, Via Jatni Khurda District Odisha India
| | - Saikat Maiti
- School of Chemical Sciences; National Institute of Science Education and Research (NISER); Homi Bhabha National Institute (HBNI); 752050 Bhubaneswar, PO Bhimpur-Padanpur, Via Jatni Khurda District Odisha India
| | - Prasenjit Mal
- School of Chemical Sciences; National Institute of Science Education and Research (NISER); Homi Bhabha National Institute (HBNI); 752050 Bhubaneswar, PO Bhimpur-Padanpur, Via Jatni Khurda District Odisha India
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19
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A simple and efficient synthesis of benzimidazoles containing piperazine or morpholine skeleton at C-6 position as glucosidase inhibitors with antioxidant activity. Bioorg Chem 2018; 76:468-477. [DOI: 10.1016/j.bioorg.2017.12.019] [Citation(s) in RCA: 37] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2017] [Revised: 12/15/2017] [Accepted: 12/15/2017] [Indexed: 01/10/2023]
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20
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Staroń J, Mordalski S, Warszycki D, Satała G, Hogendorf A, Bojarski AJ. Pyrano[2,3,4- cd]indole as a Scaffold for Selective Nonbasic 5-HT 6R Ligands. ACS Med Chem Lett 2017; 8:390-394. [PMID: 28435524 DOI: 10.1021/acsmedchemlett.6b00482] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2016] [Accepted: 03/27/2017] [Indexed: 01/03/2023] Open
Abstract
In this letter, we report the synthesis of a pyrano[2,3,4-cd]indole chemical scaffold designed through a tandem bioisostere generation/virtual screening protocol in search of 5-HT6R ligands. The discovered chemical scaffold resulted in the design of highly active basic and nonbasic 5-HT6R ligands (5-HT6R Ki = 1 nM for basic compound 6b and 5-HT6R Ki = 4 nM for its neutral analog 7b). Additionally, molecular modeling suggested that the hydroxyl group of nonbasic ligands 7a-7d forms hydrogen bonds with aspartic acid D3×32 or D7.36×35.
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Affiliation(s)
- Jakub Staroń
- Institute of Pharmacology, Polish Academy of Sciences, 31-343 Kraków, 12 Smętna Street, Poland
| | - Stefan Mordalski
- Institute of Pharmacology, Polish Academy of Sciences, 31-343 Kraków, 12 Smętna Street, Poland
| | - Dawid Warszycki
- Institute of Pharmacology, Polish Academy of Sciences, 31-343 Kraków, 12 Smętna Street, Poland
| | - Grzegorz Satała
- Institute of Pharmacology, Polish Academy of Sciences, 31-343 Kraków, 12 Smętna Street, Poland
| | - Adam Hogendorf
- Institute of Pharmacology, Polish Academy of Sciences, 31-343 Kraków, 12 Smętna Street, Poland
| | - Andrzej J. Bojarski
- Institute of Pharmacology, Polish Academy of Sciences, 31-343 Kraków, 12 Smętna Street, Poland
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21
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Łażewska D, Kurczab R, Więcek M, Kamińska K, Satała G, Jastrzębska-Więsek M, Partyka A, Bojarski AJ, Wesołowska A, Kieć-Kononowicz K, Handzlik J. The computer-aided discovery of novel family of the 5-HT 6 serotonin receptor ligands among derivatives of 4-benzyl-1,3,5-triazine. Eur J Med Chem 2017; 135:117-124. [PMID: 28441580 DOI: 10.1016/j.ejmech.2017.04.033] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2017] [Revised: 03/16/2017] [Accepted: 04/12/2017] [Indexed: 01/14/2023]
Abstract
The work describes a discovery of new chemical family of potent ligands for the 5-HT6 serotonin receptors. During the search for new histamine H4 receptor antagonists among 1,3,5-triazine derivatives, compound 2 (4-benzyl-6-(4-methylpiperazin-1-yl)-1,3,5-triazin-2-amine) was found. Compound 2, weakly active for the H4 receptor but fitted in 3/4 of pharmacophore features of the 5-HT6R ligand, occurred to be a moderate 5-HT6R agent, useful as a lead structure for further modifications. A series of new derivatives (3-19) of the lead 2 was synthesized, evaluated in the radioligand binding assay (RBA) and explored in comprehensive molecular modelling, including both pharmacophore- and structure-based approaches with docking to the homology model of 5-HT6R. The most active compounds displayed a potent affinity for the 5-HT6R in the nanomolar range (Ki = 20-30 nM), some of them (4, 11 and 19) were tested in the rat forced swim test that revealed their antidepressant-like effect. SAR-analysis on the basis of both, RBA and docking results, indicated that action on the receptor is related to the hydrophobicity and the size of aromatic moiety substituted by a methylene linker at the position 4 of 1,3,5-triazine.
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Affiliation(s)
- Dorota Łażewska
- Department of Technology and Biotechnology of Drugs, Jagiellonian University, Medical College, Medyczna 9, PL 30-688 Kraków, Poland.
| | - Rafał Kurczab
- Department of Medicinal Chemistry Institute of Pharmacology, Polish Academy of Sciences, Smętna 12, PL 31-343 Kraków, Poland
| | - Małgorzata Więcek
- Department of Technology and Biotechnology of Drugs, Jagiellonian University, Medical College, Medyczna 9, PL 30-688 Kraków, Poland
| | - Katarzyna Kamińska
- Department of Technology and Biotechnology of Drugs, Jagiellonian University, Medical College, Medyczna 9, PL 30-688 Kraków, Poland
| | - Grzegorz Satała
- Department of Medicinal Chemistry Institute of Pharmacology, Polish Academy of Sciences, Smętna 12, PL 31-343 Kraków, Poland
| | | | - Anna Partyka
- Department of Clinical Pharmacy, Jagiellonian University, Medical College, Medyczna 9, PL 30-688 Kraków, Poland
| | - Andrzej J Bojarski
- Department of Medicinal Chemistry Institute of Pharmacology, Polish Academy of Sciences, Smętna 12, PL 31-343 Kraków, Poland
| | - Anna Wesołowska
- Department of Clinical Pharmacy, Jagiellonian University, Medical College, Medyczna 9, PL 30-688 Kraków, Poland
| | - Katarzyna Kieć-Kononowicz
- Department of Technology and Biotechnology of Drugs, Jagiellonian University, Medical College, Medyczna 9, PL 30-688 Kraków, Poland
| | - Jadwiga Handzlik
- Department of Technology and Biotechnology of Drugs, Jagiellonian University, Medical College, Medyczna 9, PL 30-688 Kraków, Poland.
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22
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Two silver(I) complexes with bis(benzimidazole)‐2‐oxopropane ligands: Syntheses, crystal structures and DNA binding studies. Appl Organomet Chem 2017. [DOI: 10.1002/aoc.3747] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
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23
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González-Vera JA, Medina RA, Martín-Fontecha M, Gonzalez A, de la Fuente T, Vázquez-Villa H, García-Cárceles J, Botta J, McCormick PJ, Benhamú B, Pardo L, López-Rodríguez ML. A new serotonin 5-HT 6 receptor antagonist with procognitive activity - Importance of a halogen bond interaction to stabilize the binding. Sci Rep 2017; 7:41293. [PMID: 28117458 PMCID: PMC5259792 DOI: 10.1038/srep41293] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2016] [Accepted: 12/16/2016] [Indexed: 12/13/2022] Open
Abstract
Serotonin 5-HT6 receptor has been proposed as a promising therapeutic target for cognition enhancement though the development of new antagonists is still needed to validate these molecules as a drug class for the treatment of Alzheimer's disease and other pathologies associated with memory deficiency. As part of our efforts to target the 5-HT6 receptor, new benzimidazole-based compounds have been designed and synthesized. Site-directed mutagenesis and homology models show the importance of a halogen bond interaction between a chlorine atom of the new class of 5-HT6 receptor antagonists identified herein and a backbone carbonyl group in transmembrane domain 4. In vitro pharmacological characterization of 5-HT6 receptor antagonist 7 indicates high affinity and selectivity over a panel of receptors including 5-HT2B subtype and hERG channel, which suggests no major cardiac issues. Compound 7 exhibited in vivo procognitive activity (1 mg/kg, ip) in the novel object recognition task as a model of memory deficit.
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Affiliation(s)
- Juan A. González-Vera
- Departamento de Química Orgánica I, Facultad de Ciencias Químicas, Universidad Complutense de Madrid, E-28040 Madrid, Spain
| | - Rocío A. Medina
- Departamento de Química Orgánica I, Facultad de Ciencias Químicas, Universidad Complutense de Madrid, E-28040 Madrid, Spain
| | - Mar Martín-Fontecha
- Departamento de Química Orgánica I, Facultad de Ciencias Químicas, Universidad Complutense de Madrid, E-28040 Madrid, Spain
| | - Angel Gonzalez
- Laboratori de Medicina Computacional, Unitat de Bioestadística, Facultat de Medicina, Universitat Autònoma de Barcelona, E-08193 Bellaterra, Spain
| | - Tania de la Fuente
- Departamento de Química Orgánica I, Facultad de Ciencias Químicas, Universidad Complutense de Madrid, E-28040 Madrid, Spain
| | - Henar Vázquez-Villa
- Departamento de Química Orgánica I, Facultad de Ciencias Químicas, Universidad Complutense de Madrid, E-28040 Madrid, Spain
| | - Javier García-Cárceles
- Departamento de Química Orgánica I, Facultad de Ciencias Químicas, Universidad Complutense de Madrid, E-28040 Madrid, Spain
| | - Joaquín Botta
- School of Pharmacy, University of East Anglia, NR4 7TJ Norwich, UK
| | | | - Bellinda Benhamú
- Departamento de Química Orgánica I, Facultad de Ciencias Químicas, Universidad Complutense de Madrid, E-28040 Madrid, Spain
| | - Leonardo Pardo
- Laboratori de Medicina Computacional, Unitat de Bioestadística, Facultat de Medicina, Universitat Autònoma de Barcelona, E-08193 Bellaterra, Spain
| | - María L. López-Rodríguez
- Departamento de Química Orgánica I, Facultad de Ciencias Químicas, Universidad Complutense de Madrid, E-28040 Madrid, Spain
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24
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Doganc F, Alp M, Goker H. Separation and identification of the mixture of 2-(3,4-dimethoxyphenyl)-1-n-propyl or (4-chlorobenzyl)-5 and (6)-1H-benzimidazolecarbonitriles. MAGNETIC RESONANCE IN CHEMISTRY : MRC 2016; 54:851-857. [PMID: 27320362 DOI: 10.1002/mrc.4463] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/11/2016] [Revised: 05/13/2016] [Accepted: 05/19/2016] [Indexed: 06/06/2023]
Affiliation(s)
- Fatima Doganc
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Ankara University, Tandogan, Ankara, 06100, Turkey
| | - Mehmet Alp
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Ankara University, Tandogan, Ankara, 06100, Turkey
| | - Hakan Goker
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Ankara University, Tandogan, Ankara, 06100, Turkey
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25
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Lai TT, Xie D, Zhou CH, Cai GX. Copper-Catalyzed Inter/Intramolecular N-Alkenylation of Benzimidazoles via Tandem Processes Involving Selectively Mild Iodination of sp3 C–H Bond at α-Position of Ester. J Org Chem 2016; 81:8806-8815. [DOI: 10.1021/acs.joc.6b01465] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Affiliation(s)
- Ting-Ting Lai
- Key Laboratory of Applied Chemistry of Chongqing Municipality, Institute of Bioorganic & Medicinal Chemistry, School of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, China
| | - Dan Xie
- Key Laboratory of Applied Chemistry of Chongqing Municipality, Institute of Bioorganic & Medicinal Chemistry, School of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, China
| | - Cheng-He Zhou
- Key Laboratory of Applied Chemistry of Chongqing Municipality, Institute of Bioorganic & Medicinal Chemistry, School of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, China
| | - Gui-Xin Cai
- Key Laboratory of Applied Chemistry of Chongqing Municipality, Institute of Bioorganic & Medicinal Chemistry, School of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, China
- Beijing National Laboratory for Molecular Sciences, Beijing 100190, China
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26
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Zhang H, Xu Y, Wu H, Aderinto SO, Fan X. Mono-, bi- and multi-nuclear silver complexes constructed from bis(benzimidazole)-2-oxapropane ligands and methacrylate: syntheses, crystal structures, DNA-binding properties and antioxidant activities. RSC Adv 2016. [DOI: 10.1039/c6ra09733b] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022] Open
Abstract
Three mono-, bi- and multi-nuclear Ag(i) complexes have been synthesized and characterized systematically. The complexes bind to DNA in a intercalate mode. Complex2has the potential ability to scavenge hydroxyl radicals inin vitrostudies.
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Affiliation(s)
- Han Zhang
- School of Chemical and Biological Engineering
- Lanzhou Jiaotong University
- Lanzhou
- PR China
| | - Yuling Xu
- School of Chemical and Biological Engineering
- Lanzhou Jiaotong University
- Lanzhou
- PR China
| | - Huilu Wu
- School of Chemical and Biological Engineering
- Lanzhou Jiaotong University
- Lanzhou
- PR China
| | | | - Xuyang Fan
- School of Chemical and Biological Engineering
- Lanzhou Jiaotong University
- Lanzhou
- PR China
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27
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Vass M, Jójárt B, Bogár F, Paragi G, Keserű GM, Tarcsay Á. Dynamics and structural determinants of ligand recognition of the 5-HT6 receptor. J Comput Aided Mol Des 2015; 29:1137-49. [PMID: 26572911 DOI: 10.1007/s10822-015-9883-y] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2015] [Accepted: 11/07/2015] [Indexed: 11/25/2022]
Abstract
In order to identify molecular models of the human 5-HT6 receptor suitable for virtual screening, homology modeling and membrane-embedded molecular dynamics simulations were performed. Structural requirements for robust enrichment were assessed by an unbiased chemometric analysis of enrichments from retrospective virtual screening studies. The two main structural features affecting enrichment are the outward movement of the second extracellular loop and the formation of a hydrophobic cavity deep in the binding site. These features appear transiently in the trajectories and furthermore the stretches of uniformly high enrichment may only last 4-10 ps. The formation of the inner hydrophobic cavity was also linked to the active-like to inactive-like transition of the receptor, especially the so-called connector region. The best structural models provided significant and robust enrichment over three independent ligand sets.
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Affiliation(s)
- Márton Vass
- Discovery Chemistry, Gedeon Richter Plc., Gyömrői út 19-21, Budapest, 1103, Hungary
- Division of Medicinal Chemistry, Faculty of Science, Amsterdam Institute for Molecules, Medicines and Systems (AIMMS), VU University Amsterdam, De Boelelaan 1083, 1081 HV, Amsterdam, The Netherlands
| | - Balázs Jójárt
- Department of Chemical Informatics, Faculty of Education, University of Szeged, Boldogasszony sgt. 6, Szeged, 6725, Hungary
| | - Ferenc Bogár
- MTA SZTE Supramolecular and Nanostructured Materials Research Group, Hungarian Academy of Sciences, University of Szeged, Dóm tér 8, Szeged, 6720, Hungary
| | - Gábor Paragi
- MTA SZTE Supramolecular and Nanostructured Materials Research Group, Hungarian Academy of Sciences, University of Szeged, Dóm tér 8, Szeged, 6720, Hungary
- Department of Theoretical Chemistry, VU University Amsterdam, De Boelelaan 1083, 1081 HV, Amsterdam, The Netherlands
| | - György M Keserű
- Research Centre for Natural Sciences, Hungarian Academy of Sciences, Magyar tudósok körútja 2, Budapest, 1117, Hungary
| | - Ákos Tarcsay
- Discovery Chemistry, Gedeon Richter Plc., Gyömrői út 19-21, Budapest, 1103, Hungary.
- ChemAxon Ltd., Záhony Str. 7, Budapest, 1031, Hungary.
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28
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Karila D, Freret T, Bouet V, Boulouard M, Dallemagne P, Rochais C. Therapeutic Potential of 5-HT6 Receptor Agonists. J Med Chem 2015; 58:7901-12. [PMID: 26099069 DOI: 10.1021/acs.jmedchem.5b00179] [Citation(s) in RCA: 61] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Given its predominant expression in the central nervous system (CNS), 5-hydroxytryptamine (5-HT: serotonin) subtype 6 receptor (5-HT6R) has been considered as a valuable target for the development of CNS drugs with limited side effects. After 2 decades of intense research, numerous selective ligands have been developed to target this receptor; this holds potential interest for the treatment of neuropathological disorders. In fact, some agents (mainly antagonists) are currently undergoing clinical trial. More recently, a series of potent and selective agonists have been developed, and preclinical studies have been conducted that suggest the therapeutic interest of 5-HT6R agonists. This review details the medicinal chemistry of these agonists, highlights their activities, and discusses their potential for treating cognitive issues associated with Alzheimer's disease (AD), depression, or obesity. Surprisingly, some studies have shown that both 5-HT6R agonists and antagonists exert similar procognitive activities. This article summarizes the hypotheses that could explain this paradox.
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Affiliation(s)
- Delphine Karila
- UNICAEN, CERMN (Centre d'Etudes et de Recherche sur le Médicament de Normandie), Université de Caen Basse-Normandie , F-14032 Caen, France
| | - Thomas Freret
- UNICAEN, GMPc (Groupe Mémoire et Plasticité Comportementale), Université de Caen Basse-Normandie , F-14032 Caen, France
| | - Valentine Bouet
- UNICAEN, GMPc (Groupe Mémoire et Plasticité Comportementale), Université de Caen Basse-Normandie , F-14032 Caen, France
| | - Michel Boulouard
- UNICAEN, GMPc (Groupe Mémoire et Plasticité Comportementale), Université de Caen Basse-Normandie , F-14032 Caen, France
| | - Patrick Dallemagne
- UNICAEN, CERMN (Centre d'Etudes et de Recherche sur le Médicament de Normandie), Université de Caen Basse-Normandie , F-14032 Caen, France
| | - Christophe Rochais
- UNICAEN, CERMN (Centre d'Etudes et de Recherche sur le Médicament de Normandie), Université de Caen Basse-Normandie , F-14032 Caen, France
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29
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Three- and four-coordinate Ag(I) complexes of crotonate and bis(benzimidazole)-2-oxapropane ligands: syntheses, crystal structures, DNA-binding studies and antioxidant activities. TRANSIT METAL CHEM 2015. [DOI: 10.1007/s11243-015-9948-8] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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30
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Maiti S, Mal P. Phenyliodine Diacetate-Mediated Intramolecular C(sp2)H Amidation for 1,2-Disubstituted Benzimidazole Synthesis under Metal-Free Conditions. Adv Synth Catal 2015. [DOI: 10.1002/adsc.201401110] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
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31
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Nishio M, Umezawa Y, Fantini J, Weiss MS, Chakrabarti P. CH-π hydrogen bonds in biological macromolecules. Phys Chem Chem Phys 2015; 16:12648-83. [PMID: 24836323 DOI: 10.1039/c4cp00099d] [Citation(s) in RCA: 335] [Impact Index Per Article: 37.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
This is a sequel to the previous Perspective "The CH-π hydrogen bond in chemistry. Conformation, supramolecules, optical resolution and interactions involving carbohydrates", which featured in a PCCP themed issue on "Weak Hydrogen Bonds - Strong Effects?": Phys. Chem. Chem. Phys., 2011, 13, 13873-13900. Evidence that weak hydrogen bonds play an enormously important role in chemistry and biochemistry has now accumulated to an extent that the rigid classical concept of hydrogen bonds formulated by Pauling needs to be seriously revised and extended. The concept of a more generalized hydrogen bond definition is indispensable for understanding the folding mechanisms of proteins. The CH-π hydrogen bond, a weak molecular force occurring between a soft acid CH and a soft base π-electron system, among all is one of the most important and plays a functional role in defining the conformation and stability of 3D structures as well as in many molecular recognition events. This concept is also valuable in structure-based drug design efforts. Despite their frequent occurrence in organic molecules and bio-molecules, the importance of CH-π hydrogen bonds is still largely unknown to many chemists and biochemists. Here we present a review that deals with the evidence, nature, characteristics and consequences of the CH-π hydrogen bond in biological macromolecules (proteins, nucleic acids, lipids and polysaccharides). It is hoped that the present Perspective will show the importance of CH-π hydrogen bonds and stimulate interest in the interactions of biological macromolecules, one of the most fascinating fields in bioorganic chemistry. Implication of this concept is enormous and valuable in the scientific community.
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Affiliation(s)
- Motohiro Nishio
- The CHPI Institute, 705-6-338, Minamioya, Machida-shi, Tokyo 194-0031, Japan.
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32
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Geiger DK, Geiger HC, Deck JM. Structure determination of three furan-substituted benzimidazoles and calculation of π-π and C-H···π interaction energies. ACTA CRYSTALLOGRAPHICA SECTION C-STRUCTURAL CHEMISTRY 2014; 70:1125-32. [PMID: 25471412 DOI: 10.1107/s205322961402405x] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/07/2014] [Accepted: 10/31/2014] [Indexed: 11/10/2022]
Abstract
The synthesis and structural characterization of 2-(furan-2-yl)-1-(furan-2-ylmethyl)-1H-benzimidazole [C16H12N2O2, (I)], 2-(furan-2-yl)-1-(furan-2-ylmethyl)-1H-benzimidazol-3-ium chloride monohydrate [C16H13N2O2(+)·Cl(-)·H2O, (II)] and the hydrobromide salt 5,6-dimethyl-2-(furan-2-yl)-1-(furan-2-ylmethyl)-1H-benzimidazol-3-ium bromide [C18H17N2O2(+)·Br(-), (III)] are described. Benzimidazole (I) displays two sets of aromatic interactions, each of which involves pairs of molecules in a head-to-tail arrangement. The first, denoted set (Ia), exhibits both intermolecular C-H···π interactions between the 2-(furan-2-yl) (abbreviated as Fn) and 1-(furan-2-ylmethyl) (abbreviated as MeFn) substituents, and π-π interactions involving the Fn substituents between inversion-center-related molecules. The second, denoted set (Ib), involves π-π interactions involving both the benzene ring (Bz) and the imidazole ring (Im) of benzimidazole. Hydrated salt (II) exhibits N-H···OH2···Cl hydrogen bonding that results in chains of molecules parallel to the a axis. There is also a head-to-head aromatic stacking of the protonated benzimidazole cations in which the Bz and Im rings of one molecule interact with the Im and Fn rings of adjacent molecules in the chain. Salt (III) displays N-H···Br hydrogen bonding and π-π interactions involving inversion-center-related benzimidazole rings in a head-to-tail arrangement. In all of the π-π interactions observed, the interacting moieties are shifted with respect to each other along the major molecular axis. Basis set superposition energy-corrected (counterpoise method) interaction energies were calculated for each interaction [DFT, M06-2X/6-31+G(d)] employing atomic coordinates obtained in the crystallographic analyses for heavy atoms and optimized H-atom coordinates. The calculated interaction energies are -43.0, -39.8, -48.5, and -55.0 kJ mol(-1) for (Ia), (Ib), (II), and (III), respectively. For (Ia), the analysis was used to partition the interaction energies into the C-H···π and π-π components, which are 9.4 and 24.1 kJ mol(-1), respectively. Energy-minimized structures were used to determine the optimal interplanar spacing, the slip distance along the major molecular axis, and the slip distance along the minor molecular axis for 2-(furan-2-yl)-1H-benzimidazole.
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Affiliation(s)
- David K Geiger
- Department of Chemistry, SUNY-College at Geneseo, Geneseo, NY 14454, USA
| | - H Cristina Geiger
- Department of Chemistry, SUNY-College at Geneseo, Geneseo, NY 14454, USA
| | - Jared M Deck
- Department of Chemistry, SUNY-College at Geneseo, Geneseo, NY 14454, USA
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33
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Benhamú B, Martín-Fontecha M, Vázquez-Villa H, Pardo L, López-Rodríguez ML. Serotonin 5-HT6 Receptor Antagonists for the Treatment of Cognitive Deficiency in Alzheimer’s Disease. J Med Chem 2014; 57:7160-81. [DOI: 10.1021/jm5003952] [Citation(s) in RCA: 120] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Affiliation(s)
- Bellinda Benhamú
- Departamento
de Química Orgánica I, Facultad de Ciencias Químicas, Universidad Complutense de Madrid, E-28040 Madrid, Spain
| | - Mar Martín-Fontecha
- Departamento
de Química Orgánica I, Facultad de Ciencias Químicas, Universidad Complutense de Madrid, E-28040 Madrid, Spain
| | - Henar Vázquez-Villa
- Departamento
de Química Orgánica I, Facultad de Ciencias Químicas, Universidad Complutense de Madrid, E-28040 Madrid, Spain
| | - Leonardo Pardo
- Laboratori
de Medicina Computacional, Unitat de Bioestadística, Facultat
de Medicina, Universitat Autònoma de Barcelona, E-08193 Bellaterra, Barcelona, Spain
| | - María L. López-Rodríguez
- Departamento
de Química Orgánica I, Facultad de Ciencias Químicas, Universidad Complutense de Madrid, E-28040 Madrid, Spain
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34
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Kołaczkowski M, Marcinkowska M, Bucki A, Pawłowski M, Mitka K, Jaśkowska J, Kowalski P, Kazek G, Siwek A, Wasik A, Wesołowska A, Mierzejewski P, Bienkowski P. Novel arylsulfonamide derivatives with 5-HT₆/5-HT₇ receptor antagonism targeting behavioral and psychological symptoms of dementia. J Med Chem 2014; 57:4543-57. [PMID: 24805037 DOI: 10.1021/jm401895u] [Citation(s) in RCA: 54] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
In order to target behavioral and psychological symptoms of dementia (BPSD), we used molecular modeling-assisted design to obtain novel multifunctional arylsulfonamide derivatives that potently antagonize 5-HT(6/7/2A) and D2 receptors, without interacting with M1 receptors and hERG channels. In vitro studies confirmed their antagonism of 5-HT(7/2A) and D2 receptors and weak interactions with key antitargets (M1R and hERG) associated with side effects. Marked 5-HT6 receptor affinities were also observed, notably for 6-fluoro-3-(piperidin-4-yl)-1,2-benzoxazole derivatives connected by a 3-4 unit alkyl linker with mono- or bicyclic, lipophilic arylsulfonamide moieties. N-[4-[4-(6-Fluoro-1,2-benzoxazol-3-yl)piperidin-1-yl]butyl]benzothiophene-2-sulfonamide (72) was characterized in vitro on 14 targets and antitargets. It displayed dual blockade of 5-HT6 and D2 receptors and negligible interactions at hERG and M1 receptors. Unlike reference antipsychotics, 72 displayed marked antipsychotic and antidepressant activity in rats after oral administration, in the absence of cognitive or motor impairment. This profile is particularly attractive when targeting a fragile, elderly BPSD patient population.
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35
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Rataj K, Witek J, Mordalski S, Kosciolek T, Bojarski AJ. Impact of template choice on homology model efficiency in virtual screening. J Chem Inf Model 2014; 54:1661-8. [PMID: 24813470 DOI: 10.1021/ci500001f] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
Homology modeling is a reliable method of predicting the three-dimensional structures of proteins that lack NMR or X-ray crystallographic data. It employs the assumption that a structural resemblance exists between closely related proteins. Despite the availability of many crystal structures of possible templates, only the closest ones are chosen for homology modeling purposes. To validate the aforementioned approach, we performed homology modeling of four serotonin receptors (5-HT1AR, 5-HT2AR, 5-HT6R, 5-HT7R) for virtual screening purposes, using 10 available G-Protein Coupled Receptors (GPCR) templates with diverse evolutionary distances to the targets, with various approaches to alignment construction and model building. The resulting models were further validated in two steps by means of ligand docking and enrichment calculation, using Glide software. The final quality of the models was determined in virtual screening-like experiments by the AUROC score of the resulting ROC curves. The outcome of this research showed that no correlation between sequence identity and model quality was found, leading to the conclusion that the closest phylogenetic relative is not always the best template for homology modeling.
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Affiliation(s)
- Krzysztof Rataj
- Department of Medicinal Chemistry, Institute of Pharmacology, Polish Academy of Sciences , 12 Smętna Street, 31-343 Krakow, Poland
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36
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Hu S, Huang Y, Wu YJ, He H, Grant-Young KA, Bertekap RL, Whiterock V, Brassil P, Lentz K, Sivaprakasam P, Langley DR, Westphal RS, Scola PM. Structure activity relationship studies of 3-arylsulfonyl-pyrido[1,2-a]pyrimidin-4-imines as potent 5-HT6 antagonists. Bioorg Med Chem 2014; 22:1782-90. [DOI: 10.1016/j.bmc.2014.01.003] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2013] [Revised: 12/20/2013] [Accepted: 01/01/2014] [Indexed: 10/25/2022]
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37
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Gonzalez A, Cordomí A, Matsoukas M, Zachmann J, Pardo L. Modeling of G Protein-Coupled Receptors Using Crystal Structures: From Monomers to Signaling Complexes. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2014; 796:15-33. [DOI: 10.1007/978-94-007-7423-0_2] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
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38
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Devegowda VN, Hong JR, Cho S, Lim EJ, Choo H, Keum G, Rhim H, Nam G. Synthesis and the 5-HT6 receptor antagonistic effect of 3-arylsulfonylamino-5,6-dihydro-6-substituted pyrazolo[3,4]pyridinones for neuropathic pain treatment. Bioorg Med Chem Lett 2013; 23:4696-700. [DOI: 10.1016/j.bmcl.2013.05.100] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2013] [Revised: 05/28/2013] [Accepted: 05/30/2013] [Indexed: 01/09/2023]
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39
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Caltabiano G, Gonzalez A, Cordomí A, Campillo M, Pardo L. The Role of Hydrophobic Amino Acids in the Structure and Function of the Rhodopsin Family of G Protein-Coupled Receptors. Methods Enzymol 2013; 520:99-115. [DOI: 10.1016/b978-0-12-391861-1.00005-8] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/19/2023]
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40
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Chaturvedi AK, Negi AS, Khare P. A simple and straightforward synthesis of substituted 2-arylbenzimidazoles over silica gel. RSC Adv 2013. [DOI: 10.1039/c3ra22435j] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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41
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Haque RA, Ghdhayeb MZ, Budagumpi S, Salman AW, Ahamed MBK, Majid AMSA. Non-symmetrically substituted N-heterocyclic carbene–Ag(I) complexes of benzimidazol-2-ylidenes: Synthesis, crystal structures, anticancer activity and transmetallation studies. Inorganica Chim Acta 2013. [DOI: 10.1016/j.ica.2012.09.013] [Citation(s) in RCA: 52] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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42
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Synthesis and biological evaluation of benzoisothiazole derivatives possessing N,N-dimethylformimidamide group as 5-HT₆ receptor antagonists. Bioorg Med Chem 2012; 20:2707-12. [PMID: 22405919 DOI: 10.1016/j.bmc.2012.02.020] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2011] [Revised: 02/07/2012] [Accepted: 02/07/2012] [Indexed: 11/23/2022]
Abstract
A series of novel N,N-dimethyl-N'-(5-(Ar-sulfonamido) benzo[d]isothiazol-3-yl)formimidamides was designed and synthesized as 5-HT(6) ligands. Here N,N-dimethyl formimidamides was used as a replacement for an aminoethyl moiety. In vitro functional assays demonstrated compounds 9b and 9i significantly inhibited the 5-HT-induced Ca(2+) increases (9b; IC(50)=0.36 μM and 9i; IC(50)=0.44 μM), indicating that 9b and 9i were potent 5-HT(6) receptor antagonists. Compounds 9i also showed good selectivity on the 5-HT(6) over 5-HT(4) and 5-HT(7) receptors.
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43
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Tripathy R, McHugh RJ, Bacon ER, Salvino JM, Morton GC, Aimone LD, Huang Z, Mathiasen JR, DiCamillo A, Huffman MJ, McKenna BA, Kopec K, Lu LD, Qian J, Angeles TS, Connors T, Spais C, Holskin B, Duzic E, Schaffhauser H, Rossé GC. Discovery of 7-arylsulfonyl-1,2,3,4, 4a,9a-hexahydro-benzo[4,5]furo[2,3-c]pyridines: Identification of a potent and selective 5-HT6 receptor antagonist showing activity in rat social recognition test. Bioorg Med Chem Lett 2012; 22:1421-6. [DOI: 10.1016/j.bmcl.2011.12.026] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2011] [Revised: 12/01/2011] [Accepted: 12/05/2011] [Indexed: 01/01/2023]
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44
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Sundar BG, Bailey TR, Dunn DD, Bacon ER, Salvino JM, Morton GC, Aimone LD, Zeqi H, Mathiasen JR, Dicamillo A, Huffman MJ, McKenna BA, Kopec K, Lu LD, Brown R, Qian J, Angeles T, Connors T, Spais C, Holskin B, Galinis D, Duzic E, Schaffhauser H, Rosse GC. Novel brain penetrant benzofuropiperidine 5-HT6 receptor antagonists. Bioorg Med Chem Lett 2012; 22:120-3. [DOI: 10.1016/j.bmcl.2011.11.050] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2011] [Accepted: 11/14/2011] [Indexed: 11/26/2022]
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Marco I, Valhondo M, Martín-Fontecha M, Vázquez-Villa H, Del Río J, Planas A, Sagredo O, Ramos JA, Torrecillas IR, Pardo L, Frechilla D, Benhamú B, López-Rodríguez ML. New serotonin 5-HT(1A) receptor agonists with neuroprotective effect against ischemic cell damage. J Med Chem 2011; 54:7986-99. [PMID: 22029386 DOI: 10.1021/jm2007886] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
We report the synthesis of new compounds 4-35 based on structural modifications of different moieties of previously described lead UCM-2550. The new nonpiperazine derivatives, representing second-generation agonists, were assessed for binding affinity, selectivity, and functional activity at the 5-HT(1A) receptor (5-HT(1A)R). Computational β(2)-based homology models of the ligand-receptor complexes were used to explain the observed structure-affinity relationships. Selected candidates were also evaluated for their potential in vitro and in vivo neuroprotective properties. Interestingly, compound 26 (2-{6-[(3,4-dihydro-2H-chromen-2-ylmethyl)amino]hexyl}tetrahydro-1H-pyrrolo[1,2-c]imidazole-1,3(2H)-dione) has been characterized as a high-affinity and potent 5-HT(1A)R agonist (K(i) = 5.9 nM, EC(50) = 21.8 nM) and exhibits neuroprotective effect in neurotoxicity assays in primary cell cultures from rat hippocampus and in the MCAO model of focal cerebral ischemia in rats.
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Affiliation(s)
- Isabel Marco
- Departamento de Química Orgánica I, Universidad Complutense de Madrid, E-28040 Madrid, Spain
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van Loevezijn A, Venhorst J, Iwema Bakker WI, de Korte CG, de Looff W, Verhoog S, van Wees JW, van Hoeve M, van de Woestijne RP, van der Neut MAW, Borst AJM, van Dongen MJP, de Bruin NMWJ, Keizer HG, Kruse CG. N′-(Arylsulfonyl)pyrazoline-1-carboxamidines as Novel, Neutral 5-Hydroxytryptamine 6 Receptor (5-HT6R) Antagonists with Unique Structural Features. J Med Chem 2011; 54:7030-54. [DOI: 10.1021/jm200466r] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Arnold van Loevezijn
- Abbott Healthcare Products B.V. (formerly Solvay Pharmaceuticals B.V.), C. J. van Houtenlaan 36, 1381 CP Weesp, The Netherlands
| | - Jennifer Venhorst
- Abbott Healthcare Products B.V. (formerly Solvay Pharmaceuticals B.V.), C. J. van Houtenlaan 36, 1381 CP Weesp, The Netherlands
| | - Wouter I. Iwema Bakker
- Abbott Healthcare Products B.V. (formerly Solvay Pharmaceuticals B.V.), C. J. van Houtenlaan 36, 1381 CP Weesp, The Netherlands
| | - Cor G. de Korte
- Abbott Healthcare Products B.V. (formerly Solvay Pharmaceuticals B.V.), C. J. van Houtenlaan 36, 1381 CP Weesp, The Netherlands
| | - Wouter de Looff
- Abbott Healthcare Products B.V. (formerly Solvay Pharmaceuticals B.V.), C. J. van Houtenlaan 36, 1381 CP Weesp, The Netherlands
| | - Stefan Verhoog
- Abbott Healthcare Products B.V. (formerly Solvay Pharmaceuticals B.V.), C. J. van Houtenlaan 36, 1381 CP Weesp, The Netherlands
| | - Jan-Willem van Wees
- Abbott Healthcare Products B.V. (formerly Solvay Pharmaceuticals B.V.), C. J. van Houtenlaan 36, 1381 CP Weesp, The Netherlands
| | - Martijn van Hoeve
- Abbott Healthcare Products B.V. (formerly Solvay Pharmaceuticals B.V.), C. J. van Houtenlaan 36, 1381 CP Weesp, The Netherlands
| | - Rob P. van de Woestijne
- Abbott Healthcare Products B.V. (formerly Solvay Pharmaceuticals B.V.), C. J. van Houtenlaan 36, 1381 CP Weesp, The Netherlands
| | - Martina A. W. van der Neut
- Abbott Healthcare Products B.V. (formerly Solvay Pharmaceuticals B.V.), C. J. van Houtenlaan 36, 1381 CP Weesp, The Netherlands
| | - Alice J. M. Borst
- Abbott Healthcare Products B.V. (formerly Solvay Pharmaceuticals B.V.), C. J. van Houtenlaan 36, 1381 CP Weesp, The Netherlands
| | - Maria J. P. van Dongen
- Abbott Healthcare Products B.V. (formerly Solvay Pharmaceuticals B.V.), C. J. van Houtenlaan 36, 1381 CP Weesp, The Netherlands
| | - Natasja M. W. J. de Bruin
- Abbott Healthcare Products B.V. (formerly Solvay Pharmaceuticals B.V.), C. J. van Houtenlaan 36, 1381 CP Weesp, The Netherlands
| | - Hiskias G. Keizer
- Abbott Healthcare Products B.V. (formerly Solvay Pharmaceuticals B.V.), C. J. van Houtenlaan 36, 1381 CP Weesp, The Netherlands
| | - Chris G. Kruse
- Abbott Healthcare Products B.V. (formerly Solvay Pharmaceuticals B.V.), C. J. van Houtenlaan 36, 1381 CP Weesp, The Netherlands
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Ozawa T, Okazaki K, Kitaura K. CH/π hydrogen bonds play a role in ligand recognition and equilibrium between active and inactive states of the β2 adrenergic receptor: An ab initio fragment molecular orbital (FMO) study. Bioorg Med Chem 2011; 19:5231-7. [DOI: 10.1016/j.bmc.2011.07.004] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2011] [Revised: 07/01/2011] [Accepted: 07/02/2011] [Indexed: 10/17/2022]
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Abstract
Mounting evidence accumulated over the past few years indicates that the neurotransmitter serotonin plays a significant role in cognition. As a drug target, serotonin receptors have received notable attention due in particular to the role of several serotonin-receptor subclasses in cognition and memory. The intimate anatomical and neurochemical association of the serotonergic system with brain areas that regulate memory and learning has directed current drug discovery programmes to focus on this system as a major therapeutic drug target. Thus far, none of these programmes has yielded unambiguous data that suggest that any of the new drug entities possesses disease-modifying properties, and significantly more research in this promising area of investigation is required. Compounds are currently being investigated for activity against serotonin 5-HT(1), 5-HT(4) and 5-HT(6) receptors. This review concludes that most work done in the development of selective serotonin receptor ligands is in the pre-clinical or early clinical phase. Also, while many of these compounds will likely find application as adjuvant therapy in the symptomatic treatment of Alzheimer's disease, there are currently only a few drug entities with activity against serotonin receptors that may offer the potential to alter the progression of the disease.
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Affiliation(s)
- Werner J Geldenhuys
- Department of Pharmaceutical Sciences, Northeast Ohio Medical University, Rootstown, USA
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Congreve M, Langmead CJ, Mason JS, Marshall FH. Progress in structure based drug design for G protein-coupled receptors. J Med Chem 2011; 54:4283-311. [PMID: 21615150 PMCID: PMC3308205 DOI: 10.1021/jm200371q] [Citation(s) in RCA: 166] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2011] [Indexed: 12/12/2022]
Affiliation(s)
- Miles Congreve
- Heptares Therapeutics Limited, BioPark, Welwyn Garden City, Hertfordshire, UK.
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Ozawa T, Okazaki K, Kitaura K. Importance of CH/π hydrogen bonds in recognition of the core motif in proline-recognition domains: an ab initio fragment molecular orbital study. J Comput Chem 2011; 32:2774-82. [PMID: 21710635 DOI: 10.1002/jcc.21857] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2011] [Revised: 05/11/2011] [Accepted: 05/13/2011] [Indexed: 11/07/2022]
Abstract
We examined CH/π hydrogen bonds in protein/ligand complexes involving at least one proline residue using the ab initio fragment molecular orbital (FMO) method and the program CHPI. FMO calculations were carried out at the Hartree-Fock (HF)/6-31G*, HF/6-31G**, second-order Møller-Plesset perturbation (MP2)/6-31G*, and MP2/6-31G** levels for three Src homology 3 (SH3) domains and five proline-recognition domains (PRDs) complexed with their corresponding ligand peptides. PRDs use a conserved set of aromatic residues to recognize proline-rich sequences of specific ligands. Many CH/π hydrogen bonds were identified in these complexes. CH/π hydrogen bonds occurred, in particular, in the central part of the proline-rich motifs. Our results suggest that CH/π hydrogen bonds are important in the recognition of SH3 and PRDs by their ligand peptides and play a vital role in the signal transduction system. Combined use of the FMO method and CHPI analysis is a valuable tool for the study of protein/protein and protein/ligand interactions and may be useful in rational drug design.
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Affiliation(s)
- Tomonaga Ozawa
- Central Research Laboratory, Kissei Pharmaceutical Company Ltd, Azumino-city, Nagano, 399-8304, Japan.
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