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Bielenica A, Szulczyk D, Olejarz W, Madeddu S, Giliberti G, Materek IB, Koziol AE, Struga M. 1H-Tetrazol-5-amine and 1,3-thiazolidin-4-one derivatives containing 3-(trifluoromethyl)phenyl scaffold: Synthesis, cytotoxic and anti-HIV studies. Biomed Pharmacother 2017; 94:804-812. [PMID: 28802233 DOI: 10.1016/j.biopha.2017.07.152] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2017] [Revised: 07/17/2017] [Accepted: 07/30/2017] [Indexed: 02/07/2023] Open
Abstract
On the basis of recently reported biologically active 3-(trifluoromethyl)phenylthioureas, a series of diaryl derivatives incorporating 1H-tetrazol-5-yl (1a-11a, 1a'-11a') and 1,3-thiazolidin-4-one (1b-11b) scaffolds were synthesized. The synthesis pathway was confirmed by an X-ray crystallographic studies of 3a', 6a, 8a, 6b and 8b. The cytotoxicity against MT-4 cells and anti-HIV properties of new derivatives were evaluated. As compared to initial thiourea connections, the cyclisation reduced the cytotoxicity of compounds by 2-15 times. The most promising N-(4-nitrophenyl)-1H-tetrazol-5-amine 7a was found to be more active than the origin thiourea. Its cytotoxicity was evaluated on A549, HTB-140 and HaCaT cell lines using MTT assay. The compound shows significant influence on cancer, but not on normal cells. Obtained results can provide some constructive data for further designing of novel family of potentially bioactive analogs.
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Affiliation(s)
- Anna Bielenica
- Chair and Department of Biochemistry, Medical University of Warsaw, 02-097 Warszawa, Poland.
| | - Daniel Szulczyk
- Department of Biochemistry and Pharmacogenomics, Medical University of Warsaw, 02-097 Warszawa, Poland
| | - Wioletta Olejarz
- Department of Biochemistry and Pharmacogenomics, Medical University of Warsaw, 02-097 Warszawa, Poland; Laboratory of Centre for Preclinical Research, Medical University of Warsaw, 02-097 Warszawa, Poland
| | - Silvia Madeddu
- Department of Biomedical Sciences, University of Cagliari, Cittadella Universitaria, 09042 Monserrato, Cagliari, Italy
| | - Gabriele Giliberti
- Department of Biomedical Sciences, University of Cagliari, Cittadella Universitaria, 09042 Monserrato, Cagliari, Italy
| | - Ilona B Materek
- Faculty of Chemistry, Maria Curie-Sklodowska University, 20-031 Lublin, Poland
| | - Anna E Koziol
- Faculty of Chemistry, Maria Curie-Sklodowska University, 20-031 Lublin, Poland
| | - Marta Struga
- Chair and Department of Biochemistry, Medical University of Warsaw, 02-097 Warszawa, Poland; Laboratory of Centre for Preclinical Research, Medical University of Warsaw, 02-097 Warszawa, Poland
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Interactions between the Kynurenine and the Endocannabinoid System with Special Emphasis on Migraine. Int J Mol Sci 2017; 18:ijms18081617. [PMID: 28758944 PMCID: PMC5578009 DOI: 10.3390/ijms18081617] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2017] [Revised: 07/18/2017] [Accepted: 07/21/2017] [Indexed: 12/15/2022] Open
Abstract
Both the kynurenine and the endocannabinoid systems are involved in several neurological disorders, such as migraine and there are increasing number of reports demonstrating that there are interactions of two systems. Although their cooperation has not yet been implicated in migraine, there are reports suggesting this possibility. Additionally, the individual role of the endocannabinoid and kynurenine system in migraine is reviewed here first, focusing on endocannabinoids, kynurenine metabolites, in particular kynurenic acid. Finally, the function of NMDA and cannabinoid receptors in the trigeminal system-which has a crucial role in the pathomechanisms of migraine-will also be discussed. The interaction of the endocannabinoid and kynurenine system has been demonstrated to be therapeutically relevant in a number of pathological conditions, such as cannabis addiction, psychosis, schizophrenia and epilepsy. Accordingly, the cross-talk of these two systems may imply potential mechanisms related to migraine, and may offer new approaches to manage the treatment of this neurological disorder.
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Design, Synthesis, Pharmacological Evaluation and Docking Studies of GluN2B-Selective NMDA Receptor Antagonists with a Benzo[7]annulen-7-amine Scaffold. ChemMedChem 2017; 12:1212-1222. [DOI: 10.1002/cmdc.201700311] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2017] [Revised: 07/07/2017] [Indexed: 11/07/2022]
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Hatano M, Nishikawa K, Ishihara K. Enantioselective Cycloaddition of Styrenes with Aldimines Catalyzed by a Chiral Magnesium Potassium Binaphthyldisulfonate Cluster as a Chiral Brønsted Acid Catalyst. J Am Chem Soc 2017; 139:8424-8427. [PMID: 28557451 DOI: 10.1021/jacs.7b04795] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A chiral magnesium potassium binaphthyldisulfonate cluster, as a chiral Brønsted acid catalyst, was shown to catalyze an enantioselective cycloaddition of styrenes with aldimines for the first time. The strong Brønsted acidity of the catalyst precursors, which might dissolve drying agents and take up the leached Mg2+ and K+, serendipitously led to good enantioselectivity. Mechanistic aspects were supported by X-ray and ESI-MS analysis of the catalyst and a kinetics study of the reaction. Useful transformations to optically active 1,3-amino alcohols on a gram scale were also demonstrated.
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Affiliation(s)
- Manabu Hatano
- Graduate School of Engineering, Nagoya University , Furo-cho, Chikusa, Nagoya 464-8603, Japan
| | - Keisuke Nishikawa
- Graduate School of Engineering, Nagoya University , Furo-cho, Chikusa, Nagoya 464-8603, Japan
| | - Kazuaki Ishihara
- Graduate School of Engineering, Nagoya University , Furo-cho, Chikusa, Nagoya 464-8603, Japan
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55
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Shuto Y, Thum S, Temme L, Schepmann D, Kitamura M, Wünsch B. Do GluN2B subunit containing NMDA receptors tolerate a fluorine atom in the phenylalkyl side chain? MEDCHEMCOMM 2017; 8:975-981. [PMID: 30108812 PMCID: PMC6072303 DOI: 10.1039/c6md00621c] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/07/2016] [Accepted: 02/27/2017] [Indexed: 12/12/2022]
Abstract
The influence of an F-atom in the side chain of benzo[7]annulen-7-amines on the affinity towards GluN2B subunit containing NMDA receptors and the selectivity over related receptors was investigated. The synthesis of 5a and 5b was performed by reductive amination of the ketone 6 with primary alkanamines 14a and 14b bearing an F-atom in β-position. The GluN2B affinities of non-fluorinated and fluorinated ligands 4 and 5 are almost identical. The low impact of the F-atom on GluN2B affinity was unexpected, as it influences several chemical and physicochemical properties of the ligands. However, introduction of the F-atom led to reduced selectivity over σ receptors. Whereas 5a and 5b display still a 2-3-fold preference for GluN2B over σ1 receptors, they show almost the same affinity to GluN2B and σ2 receptors.
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Affiliation(s)
- Yoshihiro Shuto
- Graduate School of Pharmaceutical Sciences , Nagoya University Chikusa , Nagoya 464-8602 , Japan
| | - Simone Thum
- Institut für Pharmazeutische und Medizinische Chemie der Universität Münster , Corrensstraße 48 , D-48149 Münster , Germany . ; ; Tel: +49 251 8333311
| | - Louisa Temme
- Institut für Pharmazeutische und Medizinische Chemie der Universität Münster , Corrensstraße 48 , D-48149 Münster , Germany . ; ; Tel: +49 251 8333311
| | - Dirk Schepmann
- Institut für Pharmazeutische und Medizinische Chemie der Universität Münster , Corrensstraße 48 , D-48149 Münster , Germany . ; ; Tel: +49 251 8333311
| | - Masato Kitamura
- Graduate School of Pharmaceutical Sciences , Nagoya University Chikusa , Nagoya 464-8602 , Japan
| | - Bernhard Wünsch
- Institut für Pharmazeutische und Medizinische Chemie der Universität Münster , Corrensstraße 48 , D-48149 Münster , Germany . ; ; Tel: +49 251 8333311
- Cells-in-Motion Cluster of Excellence (EXC 1003 - CiM) , Westfälische Wilhelms-Universität Münster , Germany
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56
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γ-Glutamyl-dipeptides: Easy tools to rapidly probe the stereoelectronic properties of the ionotropic glutamate receptor binding pocket. Tetrahedron 2016. [DOI: 10.1016/j.tet.2016.11.025] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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57
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Quick MP, Wünsch B. Heck Reaction as Key Step in the Synthesis of Hydrogenated 2-benzazepin-1-ones. J Heterocycl Chem 2016. [DOI: 10.1002/jhet.2452] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Matthias P. Quick
- Institut für Pharmazeutische und Medizinische Chemie der Westfälischen Wilhelms-Universität Münster; Corrensstraße 48 D-48149 Münster Germany
| | - Bernhard Wünsch
- Institut für Pharmazeutische und Medizinische Chemie der Westfälischen Wilhelms-Universität Münster; Corrensstraße 48 D-48149 Münster Germany
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59
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Clausen RP, Mohr AØ, Riise E, Jensen AA, Gill A, Madden DR, Kastrup JS, Skottrup PD. A parallel panning scheme used for selection of a GluA4-specific Fab targeting the ligand-binding domain. Int J Biol Macromol 2016; 92:779-787. [PMID: 27402461 DOI: 10.1016/j.ijbiomac.2016.07.026] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2016] [Revised: 06/21/2016] [Accepted: 07/07/2016] [Indexed: 12/29/2022]
Abstract
A method for development of murine Fab fragments towards extracellular domains of a surface receptor is presented. The GluA4 ionotropic glutamate receptor is used as a model system. Recombinant GluA4 ectodomain comprising both the N-terminal domain (NTD) and the ligand-binding domain (LBD) in one molecule was used for immunization. A Fab-phage library was constructed and a parallel panning approach enabled selection of murine Fab fragments towards either intact ectodomain or the isolated LBD of the GluA4 receptor. One LBD-Fab (FabL9) showed exclusive selectivity for the GluA4 LBD, over a panel of LBDs from GluA2, GluK1, GluK2 and GluD2. Soluble FabL9 was produced in amounts suitable for characterization. Competitive ELISA and rat-brain immunoprecipitation experiments confirmed that the FabL9 epitope is conserved in the LBD and in the intact native receptor. By an alignment of GluA2 and GluA4, the likely binding epitope for FabL9 was predicted. This study demonstrates a simple approach for development of antibody fragments towards specific sub-domains of a large ligand-gated ion channel, and this method could be utilized for all multi-domain surface receptors where antibody domain-selectivity may be desirable. Furthermore, we present for the first time a GluA4 subtype-specific murine Fab fragment targeting the LBD of the receptor.
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Affiliation(s)
- Rasmus P Clausen
- Department of Drug Design and Pharmacology, University of Copenhagen, Universitetsparken 2, DK-2100 Copenhagen, Denmark.
| | - Andreas Ø Mohr
- Department of Drug Design and Pharmacology, University of Copenhagen, Universitetsparken 2, DK-2100 Copenhagen, Denmark
| | - Erik Riise
- Department of Drug Design and Pharmacology, University of Copenhagen, Universitetsparken 2, DK-2100 Copenhagen, Denmark
| | - Anders A Jensen
- Department of Drug Design and Pharmacology, University of Copenhagen, Universitetsparken 2, DK-2100 Copenhagen, Denmark
| | - Avinash Gill
- Department of Biochemistry & Cell Biology, Geisel School of Medicine at Dartmouth, Hanover, NH 03755, USA
| | - Dean R Madden
- Department of Biochemistry & Cell Biology, Geisel School of Medicine at Dartmouth, Hanover, NH 03755, USA
| | - Jette S Kastrup
- Department of Drug Design and Pharmacology, University of Copenhagen, Universitetsparken 2, DK-2100 Copenhagen, Denmark
| | - Peter D Skottrup
- Department of Drug Design and Pharmacology, University of Copenhagen, Universitetsparken 2, DK-2100 Copenhagen, Denmark; Department of Clinical Biochemistry, Copenhagen University Hospital, Hvidovre, DK-2650, Denmark.
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60
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Tewes B, Frehland B, Fröhlich R, Wünsch B. Crystal structure of (1S*,2R*)-7-benz-yloxy-2-methyl-3-tosyl-2,3,4,5-tetra-hydro-1H-3-benz-azepin-1-ol: elucidation of the relative configuration of potent allosteric GluN2B selective NMDA receptor antagonists. ACTA CRYSTALLOGRAPHICA SECTION E-CRYSTALLOGRAPHIC COMMUNICATIONS 2016; 72:683-6. [PMID: 27308018 PMCID: PMC4908544 DOI: 10.1107/s2056989016005855] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/04/2016] [Accepted: 04/08/2016] [Indexed: 11/11/2022]
Abstract
Tetrahydro-3-benzazepines with a hydroxy group in the 1-position and a methyl group in the 2-position were designed as conformationally restricted ifenprodil analogues. The enantiomerically pure 3-benzazepine (S,R)-4 representing a constitutional isomer of ifenprodil shows high affinity towards the ifenprodil binding site (Ki = 26 nM) and high antagonistic activity at the NMDA receptor (IC50 = 9.0 nM). The crystal structure analysis of the intermediate sulfonamide (S,R)-2 was performed in order to assign unequivocally the relative configuration of the methyl and hydroxy groups. In the title compound, C25H27NO4S, which crystallized as a racemate, the relative configuration of the adjacent OH and CH3 groups on the azepine ring is trans. The seven-membered azepin ring has a chair-like conformation. The planar aromatic rings of the benzyl and tosylate moiety are inclined to the planar 3-benzazepine ring by 78.39 (15) and 77.03 (14)°, respectively, and to each another by 13.82 (15)°. In the crystal, molecules are linked via O—H⋯O and C—H⋯O hydrogen bonds, forming double-stranded chains along the a-axis direction. The chains are linked via C—H⋯π interactions, forming a three-dimensional architecture.
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Affiliation(s)
- Bastian Tewes
- Institut für Pharmazeutische und Medizinische Chemie der Universität Münster, Corrensstrasse 48, D-48149 Münster, Germany
| | - Bastian Frehland
- Institut für Pharmazeutische und Medizinische Chemie der Universität Münster, Corrensstrasse 48, D-48149 Münster, Germany
| | - Roland Fröhlich
- Organisch-chemisches Institut der Westfälischen Wilhelms-Universität Münster, Corrensstr. 40, D-48149-Münster, Germany
| | - Bernhard Wünsch
- Institut für Pharmazeutische und Medizinische Chemie der Universität Münster, Corrensstrasse 48, D-48149 Münster, Germany; Cells-in-Motion Cluster of Excellence (EXC 1003 - CiM), Universität Münster, Germany
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61
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Tewes B, Frehland B, Fröhlich R, Wünsch B. Novel GluN2B selective NMDA receptor antagonists: relative configuration of 7-meth-oxy-2-methyl-2,3,4,5-tetra-hydro-1H-3-benzazepin-1-ols. ACTA CRYSTALLOGRAPHICA SECTION E-CRYSTALLOGRAPHIC COMMUNICATIONS 2016; 72:687-91. [PMID: 27308019 PMCID: PMC4908524 DOI: 10.1107/s2056989016005843] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/04/2016] [Accepted: 04/08/2016] [Indexed: 12/05/2022]
Abstract
Introduction of the flexible aminoalcohol substructure of ifenprodil into a more rigid ring system resulted in 2-methyl-2,3,4,5-tetrahydro-1H-3-benzazepin-1-ols, (3) and (4), showing GluN2B affinity in the low nanomolar range. The chiral pool synthesis starting with (R)-alanine led to two diastereomers. The relative configuration of the benzazepines (3) and (4), that crystallized as racemates, was determined to be (S*,R*)-3 and (R*,R*)-4. The title compounds, C22H29NO2 (3) and C22H29NO2 (4) [systematic names: (1S*,2R*)-7-methoxy-2-methyl-3-(4-phenylbutyl)-2,3,4,5-tetrahydro-1H-3-benzazepin-1-ol and (1R*,2R*)-7-methoxy-2-methyl-3-(4-phenylbutyl)-2,3,4,5-tetrahydro-1H-3-benzazepin-1-ol, are diastereomers with the relative configuration of the adjacent hydroxyl and methyl groups at the seven-membered azepine ring being trans in (3) and cis in (4). In the crystals the orientation of these groups is −anti-periplanar (3) and +syn-clinal (4). In both cases, the crystals studied proved to be of a racemic mixture, with relative configurations (R*,S*)-3 and (R*,R*)-4. In both compounds, the seven-membered azepine ring has a chair-like conformation, and the 4-phenylbutyl side chain adopts a extended conformation in (R*,S*)-3, but a twisted conformation in (R*,R*)-4. In the crystal of (S*,R*)-3, molecules are linked via C—H⋯O hydrogen bonds, forming slabs parallel to the ac plane. In the crystal of (R*,R*)-4, molecules are linked via O—H⋯N hydrogen bonds, forming chains propagating along the c-axis direction. The chains are linked by C—H⋯O hydrogen bonds, forming slabs parallel to the ac plane.
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Affiliation(s)
- Bastian Tewes
- Institut für Pharmazeutische und Medizinische Chemie der Universität Münster, Corrensstrasse 48, D-48149 Münster, Germany
| | - Bastian Frehland
- Institut für Pharmazeutische und Medizinische Chemie der Universität Münster, Corrensstrasse 48, D-48149 Münster, Germany
| | - Roland Fröhlich
- Organisch-chemisches Institut der Westfälischen Wilhelms-Universität Münster, Corrensstr. 40, D-48149-Münster, Germany
| | - Bernhard Wünsch
- Institut für Pharmazeutische und Medizinische Chemie der Universität Münster, Corrensstrasse 48, D-48149 Münster, Germany; Cells-in-Motion Cluster of Excellence (EXC 1003 - CiM), Universität Münster, Germany
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62
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Synthesis of new benzimidazole and phenylhydrazinecarbothiomide hybrids and their anticonvulsant activity. Med Chem Res 2016. [DOI: 10.1007/s00044-016-1570-6] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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63
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Azam F, Mohamed N, Alhussen F. Molecular interaction studies of green tea catechins as multitarget drug candidates for the treatment of Parkinson's disease: computational and structural insights. NETWORK (BRISTOL, ENGLAND) 2016; 26:97-115. [PMID: 27030558 DOI: 10.3109/0954898x.2016.1146416] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Green tea catechins have extensively been studied for their imminent role in reducing the risk of various neurodegenerative diseases such as Parkinson's disease (PD). Understanding the molecular interaction of these compounds with various anti-Parkinsonian drug targets is of interest. The present study is intended to explore binding modes of catechins with molecular targets having potential role in PD. Lamarckian genetic algorithm methodology was adopted for molecular docking simulations employing AutoDock 4.2 program. Toxicity potential and molecular properties responsible for good pharmacokinetic profile were calculated by Osiris property explorer and Molinspiration online toolkit, respectively. A strong correlation coefficient (r(2) = 0.893) was obtained between experimentally reported and docking predicted activities of native co-crystallized ligands of the 18 target receptors used in current study. Analysis of docked conformations revealed monoamine oxidase-B as most promising, while N-methyl-D-aspartate receptor was recognized as the least favorable target for catechins. Benzopyran skeleton with a phenyl group substituted at the 2-position and a hydroxyl (or ester) function at the 3-position has been identified as common structural requirements at majority of the targets. The present findings suggest that epigallocatechin gallate is the most promising lead to be developed as multitarget drug for the design and development of novel anti-Parkinsonian agents.
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Affiliation(s)
- Faizul Azam
- a Department of Pharmaceutical Chemistry, Faculty of Pharmacy , Misurata University , Misurata , Libya
| | - Najah Mohamed
- a Department of Pharmaceutical Chemistry, Faculty of Pharmacy , Misurata University , Misurata , Libya
| | - Fatma Alhussen
- a Department of Pharmaceutical Chemistry, Faculty of Pharmacy , Misurata University , Misurata , Libya
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Wang SY, Larsen Y, Navarrete CV, Jensen AA, Nielsen B, Al-Musaed A, Frydenvang K, Kastrup JS, Pickering DS, Clausen RP. Tweaking Subtype Selectivity and Agonist Efficacy at (S)-2-Amino-3-(3-hydroxy-5-methyl-isoxazol-4-yl)propionic acid (AMPA) Receptors in a Small Series of BnTetAMPA Analogues. J Med Chem 2016; 59:2244-54. [PMID: 26862980 DOI: 10.1021/acs.jmedchem.5b01982] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A series of analogues of the (S)-2-Amino-3-(3-hydroxy-5-methyl-isoxazol-4-yl)propionic acid (AMPA) receptor agonist BnTetAMPA (5b) were synthesized and characterized pharmacologically in radioligand binding assays at native and cloned AMPA receptors and functionally by two-electrode voltage clamp electrophysiology at the four homomeric AMPA receptors expressed in Xenopus laevis oocytes. The analogues 6 and 7 exhibit very different pharmacological profiles with binding affinity preference for the subtypes GluA1 and GluA3, respectively. X-ray crystal structures of three ligands (6, 7, and 8) in complex with the agonist binding domain (ABD) of GluA2 show that they induce full domain closure despite their low agonist efficacies. Trp767 in GluA2 ABD could be an important determinant for partial agonism of this compound series at AMPA receptors, since agonist efficacy also correlated with the location of the Trp767 side chain.
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Affiliation(s)
- Shuang-Yan Wang
- Department of Drug Design and Pharmacology, Faculty of Health and Medical Sciences, University of Copenhagen , Universitetsparken 2, DK 2100 Copenhagen, Denmark.,Department of Biochemistry and Molecular Biology, Gene Engineering and Biotechnology Beijing Key Laboratory, Beijing Normal University , Beijing 100875, P. R. of China
| | - Younes Larsen
- Department of Drug Design and Pharmacology, Faculty of Health and Medical Sciences, University of Copenhagen , Universitetsparken 2, DK 2100 Copenhagen, Denmark
| | - Cristina Vara Navarrete
- Department of Drug Design and Pharmacology, Faculty of Health and Medical Sciences, University of Copenhagen , Universitetsparken 2, DK 2100 Copenhagen, Denmark
| | - Anders A Jensen
- Department of Drug Design and Pharmacology, Faculty of Health and Medical Sciences, University of Copenhagen , Universitetsparken 2, DK 2100 Copenhagen, Denmark
| | - Birgitte Nielsen
- Department of Drug Design and Pharmacology, Faculty of Health and Medical Sciences, University of Copenhagen , Universitetsparken 2, DK 2100 Copenhagen, Denmark
| | - Ali Al-Musaed
- Department of Drug Design and Pharmacology, Faculty of Health and Medical Sciences, University of Copenhagen , Universitetsparken 2, DK 2100 Copenhagen, Denmark
| | - Karla Frydenvang
- Department of Drug Design and Pharmacology, Faculty of Health and Medical Sciences, University of Copenhagen , Universitetsparken 2, DK 2100 Copenhagen, Denmark
| | - Jette Sandholm Kastrup
- Department of Drug Design and Pharmacology, Faculty of Health and Medical Sciences, University of Copenhagen , Universitetsparken 2, DK 2100 Copenhagen, Denmark
| | - Darryl S Pickering
- Department of Drug Design and Pharmacology, Faculty of Health and Medical Sciences, University of Copenhagen , Universitetsparken 2, DK 2100 Copenhagen, Denmark
| | - Rasmus Prætorius Clausen
- Department of Drug Design and Pharmacology, Faculty of Health and Medical Sciences, University of Copenhagen , Universitetsparken 2, DK 2100 Copenhagen, Denmark
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Soltani Rad MN, Behrouz S, Sadeghi Dehchenari V, Hoseini SJ. Cu/Graphene/Clay Nanohybrid: A Highly Efficient Heterogeneous Nanocatalyst for Synthesis of New 5-Substituted-1H-Tetrazole Derivatives Tethered to BioactiveN-Heterocyclic Cores. J Heterocycl Chem 2016. [DOI: 10.1002/jhet.2591] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Affiliation(s)
- Mohammad Navid Soltani Rad
- Medicinal Chemistry Research Laboratory, Department of Chemistry; Shiraz University of Technology; Shiraz 71555-313 Iran
| | - Somayeh Behrouz
- Medicinal Chemistry Research Laboratory, Department of Chemistry; Shiraz University of Technology; Shiraz 71555-313 Iran
| | - Vahid Sadeghi Dehchenari
- Medicinal Chemistry Research Laboratory, Department of Chemistry; Shiraz University of Technology; Shiraz 71555-313 Iran
| | - S. Jafar Hoseini
- Department of Chemistry, Faculty of Sciences; Yasouj University; Yasouj 7591874831 Iran
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66
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Ugale VG, Bari SB. Identification of potential Gly/NMDA receptor antagonists by cheminformatics approach: a combination of pharmacophore modelling, virtual screening and molecular docking studies. SAR AND QSAR IN ENVIRONMENTAL RESEARCH 2016; 27:125-145. [PMID: 26911562 DOI: 10.1080/1062936x.2015.1136679] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
The Gly/NMDA receptor has become known as potential target for the management of neurodegenerative diseases. Discovery of Gly/NMDA antagonists has thus attracted much attention in recent years. In the present research, a cheminformatics approach has been used to determine structural requirements for Gly/NMDA antagonism and to identify potential antagonists. Here, 37 quinoxaline derivatives were selected to develop a significant pharmacophore model with good certainty. The selected model was validated by leave-one-out cross-validation, an external test set, decoy set and Y-randomization test. Applicability domain was verified by the standardization approach. The validated 3D-QSAR model was used to screen virtual hits from the ZINC database by pharmacophore mapping. Molecular docking was used for assessment of receptor-ligand binding modes and binding affinities. The GlideScore and molecular interactions with critical amino acids were considered as crucial features to identify final hits. Furthermore, hits were analysed for in silico pharmacokinetic parameters and Lipinski's rule of five, demonstrating their potential as drug-like candidates. The PubChem and SciFinder search tools were used to authenticate the novelty of leads retrieved. Finally, five different leads have been suggested as putative novel candidates for the exploration of potent Gly/NMDA receptor antagonists.
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Affiliation(s)
- V G Ugale
- a Department of Pharmaceutical Chemistry , R. C. Patel Institute of Pharmaceutical Education and Research , Shirpur ( Dhule ), Maharashtra , India
| | - S B Bari
- b Department of Pharmaceutical Chemistry , H. R. Patel Institute of Pharmaceutical Education and Research , Shirpur ( Dhule ), Maharashtra , India
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67
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Benzo[7]annulene-based GluN2B selective NMDA receptor antagonists: Surprising effect of a nitro group in 2-position. Bioorg Med Chem Lett 2015; 25:5748-51. [DOI: 10.1016/j.bmcl.2015.10.076] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2015] [Revised: 10/23/2015] [Accepted: 10/25/2015] [Indexed: 11/19/2022]
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68
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Pan X, Nasaruddin MB, Elliott CT, McGuinness B, Passmore AP, Kehoe PG, Hölscher C, McClean PL, Graham SF, Green BD. Alzheimer's disease-like pathology has transient effects on the brain and blood metabolome. Neurobiol Aging 2015; 38:151-163. [PMID: 26827653 DOI: 10.1016/j.neurobiolaging.2015.11.014] [Citation(s) in RCA: 88] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2015] [Revised: 11/09/2015] [Accepted: 11/23/2015] [Indexed: 12/18/2022]
Abstract
The pathogenesis of Alzheimer's disease (AD) is complex involving multiple contributing factors. The extent to which AD pathology affects the metabolome is still not understood nor is it known how disturbances change as the disease progresses. For the first time, we have profiled longitudinally (6, 8, 10, 12, and 18 months) both the brain and plasma metabolome of APPswe/PS1deltaE9 double transgenic and wild-type mice. A total of 187 metabolites were quantified using a targeted metabolomic methodology. Multivariate statistical analysis produced models that distinguished APPswe/PS1deltaE9 from wild-type mice at 8, 10, and 12 months. Metabolic pathway analysis found perturbed polyamine metabolism in both brain and blood plasma. There were other disturbances in essential amino acids, branched-chain amino acids, and also in the neurotransmitter serotonin. Pronounced imbalances in phospholipid and acylcarnitine homeostasis were evident in 2 age groups. AD-like pathology, therefore, affects greatly on both the brain and blood metabolomes, although there appears to be a clear temporal sequence whereby changes to brain metabolites precede those in blood.
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Affiliation(s)
- Xiaobei Pan
- Advanced Asset Technology Centre, Institute for Global Food Security, Queen's University Belfast, Belfast, Northern Ireland, UK
| | - Muhammad Bin Nasaruddin
- Advanced Asset Technology Centre, Institute for Global Food Security, Queen's University Belfast, Belfast, Northern Ireland, UK
| | - Christopher T Elliott
- Advanced Asset Technology Centre, Institute for Global Food Security, Queen's University Belfast, Belfast, Northern Ireland, UK
| | - Bernadette McGuinness
- Centre for Public Health, School of Medicine, Dentistry and Biomedical Sciences, Queen's University Belfast, Belfast, Northern Ireland, UK
| | - Anthony P Passmore
- Centre for Public Health, School of Medicine, Dentistry and Biomedical Sciences, Queen's University Belfast, Belfast, Northern Ireland, UK
| | - Patrick G Kehoe
- Dementia Research Group, Institute of Clinical Neurosciences, School of Clinical Sciences, University of Bristol, Bristol, UK
| | - Christian Hölscher
- Division of Biomedical and Life Sciences, Lancaster University, Lancaster, UK
| | - Paula L McClean
- School of Biomedical Sciences, University of Ulster, Coleraine, UK
| | | | - Brian D Green
- Advanced Asset Technology Centre, Institute for Global Food Security, Queen's University Belfast, Belfast, Northern Ireland, UK.
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69
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Tewes B, Frehland B, Schepmann D, Robaa D, Uengwetwanit T, Gaube F, Winckler T, Sippl W, Wünsch B. Enantiomerically Pure 2-Methyltetrahydro-3-benzazepin-1-ols Selectively Blocking GluN2B Subunit Containing N-Methyl-d-aspartate Receptors. J Med Chem 2015; 58:6293-305. [DOI: 10.1021/acs.jmedchem.5b00897] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Bastian Tewes
- Institut für
Pharmazeutische und Medizinische Chemie der Universität Münster, Corrensstraße 48, D-48149 Münster, Germany
| | - Bastian Frehland
- Institut für
Pharmazeutische und Medizinische Chemie der Universität Münster, Corrensstraße 48, D-48149 Münster, Germany
| | - Dirk Schepmann
- Institut für
Pharmazeutische und Medizinische Chemie der Universität Münster, Corrensstraße 48, D-48149 Münster, Germany
| | - Dina Robaa
- Institut
für Pharmazie, Martin-Luther-Universität Halle-Wittenberg, Wolfgang-Langenbeck-Strasse
4, D-06120 Halle/Saale, Germany
| | - Tanaporn Uengwetwanit
- Institut
für Pharmazie, Martin-Luther-Universität Halle-Wittenberg, Wolfgang-Langenbeck-Strasse
4, D-06120 Halle/Saale, Germany
| | - Friedemann Gaube
- Institut für
Pharmazie der Friedrich-Schiller-Universität Jena, Semmelweisstraße 10, D-07743 Jena, Germany
| | - Thomas Winckler
- Institut für
Pharmazie der Friedrich-Schiller-Universität Jena, Semmelweisstraße 10, D-07743 Jena, Germany
| | - Wolfgang Sippl
- Institut
für Pharmazie, Martin-Luther-Universität Halle-Wittenberg, Wolfgang-Langenbeck-Strasse
4, D-06120 Halle/Saale, Germany
| | - Bernhard Wünsch
- Institut für
Pharmazeutische und Medizinische Chemie der Universität Münster, Corrensstraße 48, D-48149 Münster, Germany
- Cells-in-Motion
Cluster of Excellence (EXC 1003-CiM), Universität Münster, 48149 Münster, Germany
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70
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Synthesis, structure-activity relationships, and anticonvulsant activities of 2-amino-4H-pyrido[3,2-e][1,3]thiazin-4-one derivatives as orally active AMPA receptor antagonists. Bioorg Med Chem 2015; 23:1788-99. [PMID: 25792143 DOI: 10.1016/j.bmc.2015.02.033] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2014] [Revised: 02/16/2015] [Accepted: 02/17/2015] [Indexed: 11/23/2022]
Abstract
As part of a program aimed at discovering orally active 2-amino-3-(3-hydroxy-5-methyl-4-isoxazolyl)propionic acid (AMPA) receptor antagonists, we screened our compound library and identified 2-[allyl(4-methylphenyl)amino]-4H-pyrido[3,2-e][1,3]thiazin-4-one (7) as a lead compound that inhibited kainate-induced neurotoxicity mediated by AMPA receptors in rat hippocampal cultures. Structure-activity relationship studies of a series of 2-amino-4H-pyrido[3,2-e][1,3]thiazin-4-one derivatives revealed that substituents on the phenyl ring attached to the 2-amino group and the 4H-pyrido[3,2-e][1,3]thiazin-4-one ring system play an important role in inhibitory activity against kainate-induced neurotoxicity. Several analogs bearing a phenyl group with a 4-substituent or five- or six-membered ring fused at the 3,4-positions exhibited potent inhibitory activity against kainate-induced neurotoxicity. Further, some of these compounds exhibited significant suppression of maximal electroshock seizure in mice following oral administration. Of these compounds, 2-[(4-chlorophenyl)(methyl)amino]-4H-pyrido[3,2-e][1,3]thiazin-4-one (16i) (YM928) demonstrated the most potent inhibitory effect with an ED50 value of 7.4mg/kg.
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71
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Pippione AC, Dosio F, Ducime A, Federico A, Martina K, Sainas S, Frølund B, Gooyit M, Janda KD, Boschi D, Lolli ML. Substituted 4-hydroxy-1,2,3-triazoles: synthesis, characterization and first drug design applications through bioisosteric modulation and scaffold hopping approaches. MEDCHEMCOMM 2015. [DOI: 10.1039/c5md00182j] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
The hydroxytriazole system is here analysed and used to modulate acidic moieties present in lead compounds.
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72
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Harris L, Gilpin M, Thompson AL, Cowley AR, Moloney MG. Uncatalysed diaryldiazo cyclopropanations on bicyclic lactams: access to annulated prolines. Org Biomol Chem 2015; 13:6522-50. [DOI: 10.1039/c5ob00648a] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
The uncatalysed cycloaddition of substituted diaryldiazo compounds onto bicyclic unsaturated lactams derived from pyroglutamic acid efficiently leads to highly functionalised azatricyclononanes.
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Affiliation(s)
- Lawrence Harris
- The Department of Chemistry
- Chemistry Research Laboratory
- The University of Oxford
- Oxford
- UK
| | | | - Amber L. Thompson
- The Department of Chemistry
- Chemistry Research Laboratory
- The University of Oxford
- Oxford
- UK
| | - Andrew R. Cowley
- The Department of Chemistry
- Chemistry Research Laboratory
- The University of Oxford
- Oxford
- UK
| | - Mark G. Moloney
- The Department of Chemistry
- Chemistry Research Laboratory
- The University of Oxford
- Oxford
- UK
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73
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Kumar KSA, Chattopadhyay S. d-Glucose based syntheses of β-hydroxy derivatives of l-glutamic acid, l-glutamine, l-proline and a dihydroxy pyrrolidine alkaloid. RSC Adv 2015. [DOI: 10.1039/c5ra01340b] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022] Open
Abstract
The β-hydroxy derivatives of l-glutamic acid, l-glutamine and l-proline, useful for peptide/protein studies, were synthesized starting from d-glucose.
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74
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Tamborini L, Mastronardi F, Dall'Oglio F, De Micheli C, Nielsen B, Lo Presti L, Conti P, Pinto A. Synthesis of unusual isoxazoline containing β and γ-dipeptides as potential glutamate receptor ligands. MEDCHEMCOMM 2015. [DOI: 10.1039/c5md00159e] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Unconventional beta and gamma dipeptides as tools to investigate the iGluR binding domain.
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Affiliation(s)
- Lucia Tamborini
- Dipartimento di Scienze Farmaceutiche DISFARM
- Università degli Studi di Milano
- 20133 Milano
- Italy
| | - Federica Mastronardi
- Dipartimento di Scienze Farmaceutiche DISFARM
- Università degli Studi di Milano
- 20133 Milano
- Italy
| | - Federica Dall'Oglio
- Dipartimento di Scienze Farmaceutiche DISFARM
- Università degli Studi di Milano
- 20133 Milano
- Italy
| | - Carlo De Micheli
- Dipartimento di Scienze Farmaceutiche DISFARM
- Università degli Studi di Milano
- 20133 Milano
- Italy
| | - Birgitte Nielsen
- Department of Drug Design and Pharmacology
- Faculty of Health and Medical Sciences
- University of Copenhagen
- Universitetsparken 2
- 2100 Copenhagen OE
| | - Leonardo Lo Presti
- Dipartimento di Chimica
- Università degli Studi di Milano
- 20133 Milano
- Italy
| | - Paola Conti
- Dipartimento di Scienze Farmaceutiche DISFARM
- Università degli Studi di Milano
- 20133 Milano
- Italy
| | - Andrea Pinto
- Dipartimento di Scienze Farmaceutiche DISFARM
- Università degli Studi di Milano
- 20133 Milano
- Italy
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75
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Nitoker N, Major DT. Understanding the Reaction Mechanism and Intermediate Stabilization in Mammalian Serine Racemase Using Multiscale Quantum-Classical Simulations. Biochemistry 2014; 54:516-27. [DOI: 10.1021/bi500984m] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Affiliation(s)
- Neta Nitoker
- Department
of Chemistry and
the Lise Meitner-Minerva Center of Computational Quantum Chemistry, Bar-Ilan University, Ramat-Gan 52900, Israel
| | - Dan Thomas Major
- Department
of Chemistry and
the Lise Meitner-Minerva Center of Computational Quantum Chemistry, Bar-Ilan University, Ramat-Gan 52900, Israel
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76
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Gawaskar S, Schepmann D, Bonifazi A, Wünsch B. Synthesis, GluN2B affinity and selectivity of benzo[7]annulen-7-amines. Bioorg Med Chem 2014; 22:6638-6646. [DOI: 10.1016/j.bmc.2014.10.004] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2014] [Revised: 09/30/2014] [Accepted: 10/06/2014] [Indexed: 11/30/2022]
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77
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Varano F, Catarzi D, Colotta V, Squarcialupi L, Matucci R. 1,2,4-Benzothiadiazine-1,1-dioxide Derivatives as Ionotropic Glutamate Receptor Ligands: Synthesis and Structure-Activity Relationships. Arch Pharm (Weinheim) 2014; 347:777-85. [DOI: 10.1002/ardp.201400192] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2014] [Revised: 06/30/2014] [Accepted: 07/03/2014] [Indexed: 11/05/2022]
Affiliation(s)
- Flavia Varano
- Dipartimento di Neuroscienze, Psicologia, Area del Farmaco e Salute del Bambino, Sezione di Farmaceutica e Nutraceutica; Università di Firenze; Sesto Fiorentino Italy
| | - Daniela Catarzi
- Dipartimento di Neuroscienze, Psicologia, Area del Farmaco e Salute del Bambino, Sezione di Farmaceutica e Nutraceutica; Università di Firenze; Sesto Fiorentino Italy
| | - Vittoria Colotta
- Dipartimento di Neuroscienze, Psicologia, Area del Farmaco e Salute del Bambino, Sezione di Farmaceutica e Nutraceutica; Università di Firenze; Sesto Fiorentino Italy
| | - Lucia Squarcialupi
- Dipartimento di Neuroscienze, Psicologia, Area del Farmaco e Salute del Bambino, Sezione di Farmaceutica e Nutraceutica; Università di Firenze; Sesto Fiorentino Italy
| | - Rosanna Matucci
- Dipartimento di Neuroscienze, Psicologia, Area del Farmaco e Salute del Bambino; Sezione di Farmacologia e Tossicologia, Università di Firenze; Firenze Italy
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78
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Analogues of 3-hydroxyisoxazole-containing glutamate receptor ligands based on the 3-hydroxypyrazole-moiety: design, synthesis and pharmacological characterization. Neurochem Res 2014; 39:1895-905. [PMID: 24848194 DOI: 10.1007/s11064-014-1332-0] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2014] [Revised: 05/09/2014] [Accepted: 05/10/2014] [Indexed: 10/25/2022]
Abstract
A series of analogues of the glutamate receptor ligands (S)-2-amino-3-(3-hydroxy-5-methyl-isoxazol-4-yl)propionic acid (AMPA) and AMOA were synthesized in which the 3-hydroxyisoxazole moiety was exchanged for a 3-hydroxypyrazole moiety. This exchange enables further substitution at the additional nitrogen atom in the heterocyclic core. Several of the analogues have activity at AMPA receptors equipotent to the antagonist ATPO, demonstrating that additional substitution can be accommodated in the antagonist binding site. Modelling studies offer an explanation for the pharmacological pattern observed for the compounds and suggest that this scaffold may be developed further to obtain subtype selective antagonists.
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79
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Efficient synthesis of novel glutamate homologues and investigation of their affinity and selectivity profile at ionotropic glutamate receptors. Bioorg Med Chem Lett 2014; 24:1980-2. [PMID: 24630559 DOI: 10.1016/j.bmcl.2014.02.058] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2014] [Revised: 02/18/2014] [Accepted: 02/20/2014] [Indexed: 11/21/2022]
Abstract
A convenient synthesis of four new enantiomerically pure acidic amino acids is reported and their affinity at ionotropic glutamate receptors was determined. The new compounds are higher homologues of glutamic acid in which the molecular complexity has been increased by introducing an aromatic/heteroaromatic ring, that is a phenyl or a thiophene ring, that could give additional electronic interactions with the receptors. The results of the present investigation indicate that the insertion of an aromatic/heteroaromatic ring into the amino acid skeleton of glutamate higher homologues is well tolerated and this modification could be exploited to generate a new class of NMDA antagonists.
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80
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Pinto A, Tamborini L, Mastronardi F, Ettari R, Safoz Y, Bunch L, Nielsen B, Jensen AA, De Micheli C, Conti P. Synthesis of (3-hydroxy-pyrazolin-5-yl)glycine based ligands interacting with ionotropic glutamate receptors. Eur J Med Chem 2014; 75:151-8. [PMID: 24531228 DOI: 10.1016/j.ejmech.2014.01.029] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2013] [Revised: 11/27/2013] [Accepted: 01/20/2014] [Indexed: 11/18/2022]
Abstract
Following the concept that increasing the molecular complexity may enhance the receptor selectivity, we replaced the 3-hydroxy-isoxazoline ring of model compound tricholomic acid with a 3-hydroxy-pyrazoline ring, which could be variously decorated at the N1 position, inserting groups characterized by different electronic and steric properties. Binding assays on rat brain synaptic membranes showed that, depending on the nature of the substituent, some of the new synthesized ligands interacted with either AMPA or KA receptors, with affinities in the mid-micromolar range.
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Affiliation(s)
- Andrea Pinto
- Dipartimento di Scienze Farmaceutiche, Università degli Studi di Milano, Via Mangiagalli 25, 20133 Milano, Italy.
| | - Lucia Tamborini
- Dipartimento di Scienze Farmaceutiche, Università degli Studi di Milano, Via Mangiagalli 25, 20133 Milano, Italy
| | - Federica Mastronardi
- Dipartimento di Scienze Farmaceutiche, Università degli Studi di Milano, Via Mangiagalli 25, 20133 Milano, Italy
| | - Roberta Ettari
- Dipartimento di Scienze Farmaceutiche, Università degli Studi di Milano, Via Mangiagalli 25, 20133 Milano, Italy
| | - Yeliz Safoz
- Dipartimento di Scienze Farmaceutiche, Università degli Studi di Milano, Via Mangiagalli 25, 20133 Milano, Italy; Department of Drug Design and Pharmacology, Faculty of Health and Medical Sciences, University of Copenhagen, Universitetsparken 2, 2100 Copenhagen OE, Denmark
| | - Lennart Bunch
- Department of Drug Design and Pharmacology, Faculty of Health and Medical Sciences, University of Copenhagen, Universitetsparken 2, 2100 Copenhagen OE, Denmark
| | - Birgitte Nielsen
- Department of Drug Design and Pharmacology, Faculty of Health and Medical Sciences, University of Copenhagen, Universitetsparken 2, 2100 Copenhagen OE, Denmark
| | - Anders A Jensen
- Department of Drug Design and Pharmacology, Faculty of Health and Medical Sciences, University of Copenhagen, Universitetsparken 2, 2100 Copenhagen OE, Denmark
| | - Carlo De Micheli
- Dipartimento di Scienze Farmaceutiche, Università degli Studi di Milano, Via Mangiagalli 25, 20133 Milano, Italy
| | - Paola Conti
- Dipartimento di Scienze Farmaceutiche, Università degli Studi di Milano, Via Mangiagalli 25, 20133 Milano, Italy
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81
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Benner A, Bonifazi A, Shirataki C, Temme L, Schepmann D, Quaglia W, Shoji O, Watanabe Y, Daniliuc C, Wünsch B. GluN2B-selective N-methyl-D-aspartate (NMDA) receptor antagonists derived from 3-benzazepines: synthesis and pharmacological evaluation of benzo[7]annulen-7-amines. ChemMedChem 2014; 9:741-51. [PMID: 24677663 DOI: 10.1002/cmdc.201300547] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2013] [Indexed: 11/11/2022]
Abstract
Given their high neuroprotective potential, ligands that block GluN2B-containing N-methyl-D-aspartate (NMDA) receptors by interacting with the ifenprodil binding site located on the GluN2B subunit are of great interest for the treatment of various neuronal disorders. In this study, a novel class of GluN2B-selective NMDA receptor antagonists with the benzo[7]annulene scaffold was prepared and pharmacologically evaluated. The key intermediate, N-(2-methoxy-5-oxo-6,7,8,9-tetrahydro-5H-benzo[7]annulen-7-yl)acetamide (11), was obtained by cyclization of 3-acetamido-5-(3-methoxyphenyl)pentanoic acid (10 b). The final reaction steps comprise hydrolysis of the amide, reduction of the ketone, and reductive alkylation, leading to cis- and trans-configured 7-(ω-phenylalkylamino)benzo[7]annulen-5-ols. High GluN2B affinity was observed with cis-configured γ-amino alcohols substituted with a 3-phenylpropyl moiety at the amino group. Removal of the benzylic hydroxy moiety led to the most potent GluN2B antagonists of this series: 2-methoxy-N-(3-phenylpropyl)-6,7,8,9-tetrahydro-5H-benzo[7]annulen-7-amine (20 a, Ki =10 nM) and 2-methoxy-N-methyl-N-(3-phenylpropyl)-6,7,8,9-tetrahydro-5H-benzo[7]annulen-7-amine (23 a, Ki =7.9 nM). The selectivity over related receptors (phencyclidine binding site of the NMDA receptor, σ1 and σ2 receptors) was recorded. In a functional assay measuring the cytoprotective activity of the benzo[7]annulenamines, all tested compounds showed potent NMDA receptor antagonistic activity. Cytotoxicity induced via GluN2A subunit-containing NMDA receptors was not inhibited by the new ligands.
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Affiliation(s)
- Andre Benner
- Institut für Pharmazeutische und Medizinische Chemie der Universität, Münster, Corrensstraße 48, 48149 Münster (Germany)
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82
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Heinzelmann G, Chen PC, Kuyucak S. Computation of standard binding free energies of polar and charged ligands to the glutamate receptor GluA2. J Phys Chem B 2014; 118:1813-24. [PMID: 24479628 DOI: 10.1021/jp412195m] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Accurate calculation of the binding affinity of small molecules to proteins has the potential to become an important tool in rational drug design. In this study, we use the free energy perturbation (FEP) method with restraints to calculate the standard binding free energy of five ligands (ACPA, AMPA, CNQX, DNQX, and glutamate) to the glutamate receptor GluA2, which plays an essential role in synaptic transmission. To deal with the convergence problem in FEP calculations with charged ligands, we use a protocol where the ligand is coupled in the binding site while it is decoupled in bulk solution simultaneously. The contributions from the conformational, rotational, and translational entropies to the standard binding free energy are determined by applying/releasing respective restraints to the ligand in bulk/binding site. We also employ the confine-and-release approach, which helps to resolve convergence problems in FEP calculations. Our results are in good agreement with the experimental values for all five ligands, including the charged ones which are often problematic in FEP calculations. We also analyze the different contributions to the binding free energy of each ligand to GluA2 and discuss the nature of these interactions.
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83
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Hatakeyama S. Total Synthesis of Biologically Active Natural Products Based on Highly Selective Synthetic Methodologies. Chem Pharm Bull (Tokyo) 2014; 62:1045-61. [DOI: 10.1248/cpb.c14-00474] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Affiliation(s)
- Susumi Hatakeyama
- Graduate School of Biomedical Sciences, Nagasaki University, 1–14 Bunkyo-machi, Nagasaki 852–8521, Japan
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84
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Chernykh AV, Radchenko DS, Grygorenko OO, Volochnyuk DM, Shishkina SV, Shishkin OV, Komarov IV. Conformationally restricted glutamic acid analogues: stereoisomers of 1-aminospiro[3.3]heptane-1,6-dicarboxylic acid. RSC Adv 2014. [DOI: 10.1039/c3ra47725h] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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85
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Martinez-Perez JA, Iyengar S, Shannon HE, Bleakman D, Alt A, Arnold BM, Bell MG, Bleisch TJ, Castaño AM, Del Prado M, Dominguez E, Escribano AM, Filla SA, Ho KH, Hudziak KJ, Jones CK, Mateo A, Mathes BM, Mattiuz EL, Ogden AML, Simmons RMA, Stack DR, Stratford RE, Winter MA, Wu Z, Ornstein PL. GluK1 antagonists from 6-(carboxy)phenyl decahydroisoquinoline derivatives. SAR and evaluation of a prodrug strategy for oral efficacy in pain models. Bioorg Med Chem Lett 2013; 23:6459-62. [DOI: 10.1016/j.bmcl.2013.09.046] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2013] [Revised: 09/13/2013] [Accepted: 09/13/2013] [Indexed: 11/25/2022]
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86
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Kuribayashi N, Uchida D, Kinouchi M, Takamaru N, Tamatani T, Nagai H, Miyamoto Y. The role of metabotropic glutamate receptor 5 on the stromal cell-derived factor-1/CXCR4 system in oral cancer. PLoS One 2013; 8:e80773. [PMID: 24236200 PMCID: PMC3827474 DOI: 10.1371/journal.pone.0080773] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2013] [Accepted: 10/06/2013] [Indexed: 01/23/2023] Open
Abstract
We have demonstrated that blocking CXCR4 may be a potent anti-metastatic therapy for CXCR4-related oral cancer. However, as CXCR4 antagonists are currently in clinical use to induce the mobilization of hematopoietic stem cells, continuous administration as an inhibitor for the metastasis may lead to persistent leukocytosis. In this study, we investigated the novel therapeutic downstream target(s) of the SDF-1/CXCR4 system, using B88-SDF-1 cells, which have an autocrine SDF-1/CXCR4 system and exhibit distant metastatic potential in vivo. Microarray analysis revealed that 418 genes were upregulated in B88-SDF-1 cells. We identified a gene that is highly upregulated in B88-SDF-1 cells, metabotropic glutamate receptor 5 (mGluR5), which was downregulated following treatment with 1,1’ -[1,4-Phenylenebis(methylene)]bis-1,4,8,11-tetraazacyclotetradecane octahydrochloride (AMD3100), a CXCR4 antagonist. The upregulation of mGluR5 mRNA in the SDF-1/CXCR4 system was predominately regulated by the Ras-extracellular signal-regulated kinase (ERK)1/2 pathway. Additionally, the growth of B88-SDF-1 cells was not affected by the mGluR5 agonist (S)-3,5-DHPG (DHPG) or the mGluR5 antagonists 2-Methyl-6-(phenylethynyl)pyridine (MPEP) and 3-((2-Methyl-1,3-thiazol-4-yl)ethynyl)pyridine (MTEP). However, we observed that DHPG promoted B88-SDF-1 cell migration, whereas both MPEP and MTEP inhibited B88-SDF-1 cell migration. To assess drug toxicity, the antagonists were intraperitoneally injected into immunocompetent mice for 4 weeks. Mice injected with MPEP (5 mg/kg) and MTEP (5 mg/kg) did not exhibit any side effects, such as hematotoxicity, allergic reactions or weight loss. The administration of antagonists significantly inhibited the metastasis of B88-SDF-1 cells to the lungs of nude mice. These results suggest that blocking mGluR5 with antagonists such as MPEP and MTEP could prevent metastasis in CXCR4-related oral cancer without causing side effects.
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Affiliation(s)
- Nobuyuki Kuribayashi
- Department of Oral Surgery, Subdivision of Molecular Oral Medicine, Division of Integrated Sciences of Translational Research, Institute of Health Biosciences, The University of Tokushima Graduate School, Kuramoto, Tokushima, Japan
| | - Daisuke Uchida
- Department of Oral Surgery, Subdivision of Molecular Oral Medicine, Division of Integrated Sciences of Translational Research, Institute of Health Biosciences, The University of Tokushima Graduate School, Kuramoto, Tokushima, Japan
- * E-mail:
| | - Makoto Kinouchi
- Department of Oral Surgery, Subdivision of Molecular Oral Medicine, Division of Integrated Sciences of Translational Research, Institute of Health Biosciences, The University of Tokushima Graduate School, Kuramoto, Tokushima, Japan
| | - Natsumi Takamaru
- Department of Oral Surgery, Subdivision of Molecular Oral Medicine, Division of Integrated Sciences of Translational Research, Institute of Health Biosciences, The University of Tokushima Graduate School, Kuramoto, Tokushima, Japan
| | - Tetsuya Tamatani
- Department of Oral Surgery, Subdivision of Molecular Oral Medicine, Division of Integrated Sciences of Translational Research, Institute of Health Biosciences, The University of Tokushima Graduate School, Kuramoto, Tokushima, Japan
| | - Hirokazu Nagai
- Department of Oral Surgery, Subdivision of Molecular Oral Medicine, Division of Integrated Sciences of Translational Research, Institute of Health Biosciences, The University of Tokushima Graduate School, Kuramoto, Tokushima, Japan
| | - Youji Miyamoto
- Department of Oral Surgery, Subdivision of Molecular Oral Medicine, Division of Integrated Sciences of Translational Research, Institute of Health Biosciences, The University of Tokushima Graduate School, Kuramoto, Tokushima, Japan
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87
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Gargano AFG, Buchinger S, Kohout M, Lindner W, Lämmerhofer M. Single-Step Ugi Multicomponent Reaction for the Synthesis of Phosphopeptidomimetics. J Org Chem 2013; 78:10077-87. [DOI: 10.1021/jo401372x] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Andrea F. G. Gargano
- Department
of Analytical Chemistry, University of Vienna, Waehringer Strasse 38, 1090 Vienna, Austria
| | - Stefanie Buchinger
- Department
of Analytical Chemistry, University of Vienna, Waehringer Strasse 38, 1090 Vienna, Austria
| | - Michal Kohout
- Department
of Analytical Chemistry, University of Vienna, Waehringer Strasse 38, 1090 Vienna, Austria
| | - Wolfgang Lindner
- Department
of Analytical Chemistry, University of Vienna, Waehringer Strasse 38, 1090 Vienna, Austria
| | - Michael Lämmerhofer
- Institute
of Pharmaceutical Sciences, University of Tübingen, Auf
der Morgenstelle 8, 72076 Tübingen, Germany
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88
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Kvist T, Steffensen TB, Greenwood JR, Mehrzad Tabrizi F, Hansen KB, Gajhede M, Pickering DS, Traynelis SF, Kastrup JS, Bräuner-Osborne H. Crystal structure and pharmacological characterization of a novel N-methyl-D-aspartate (NMDA) receptor antagonist at the GluN1 glycine binding site. J Biol Chem 2013; 288:33124-35. [PMID: 24072709 DOI: 10.1074/jbc.m113.480210] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
NMDA receptors are ligand-gated ion channels that mediate excitatory neurotransmission in the brain. They are tetrameric complexes composed of glycine-binding GluN1 and GluN3 subunits together with glutamate-binding GluN2 subunits. Subunit-selective antagonists that discriminate between the glycine sites of GluN1 and GluN3 subunits would be valuable pharmacological tools for studies on the function and physiological roles of NMDA receptor subtypes. In a virtual screening for antagonists that exploit differences in the orthosteric binding site of GluN1 and GluN3 subunits, we identified a novel glycine site antagonist, 1-thioxo-1,2-dihydro-[1,2,4]triazolo[4,3-a]quinoxalin-4(5H)-one (TK40). Here, we show by Schild analysis that TK40 is a potent competitive antagonist with Kb values of 21-63 nM at the GluN1 glycine-binding site of the four recombinant GluN1/N2A-D receptors. In addition, TK40 displayed >100-fold selectivity for GluN1/N2 NMDA receptors over GluN3A- and GluN3B-containing NMDA receptors and no appreciable effects at AMPA receptors. Binding experiments on rat brain membranes and the purified GluN1 ligand-binding domain using glycine site GluN1 radioligands further confirmed the competitive interaction and high potency. To delineate the binding mechanism, we have solved the crystal structure of the GluN1 ligand-binding domain in complex with TK40 and show that TK40 binds to the orthosteric binding site of the GluN1 subunit with a binding mode that was also predicted by virtual screening. Furthermore, the structure reveals that the imino acetamido group of TK40 acts as an α-amino acid bioisostere, which could be of importance in bioisosteric replacement strategies for future ligand design.
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Affiliation(s)
- Trine Kvist
- From the Department of Drug Design and Pharmacology, Faculty of Health and Medical Sciences, University of Copenhagen, Universitetsparken 2, DK-2100 Copenhagen, Denmark
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89
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Li K, Tan G, Huang J, Song F, You J. Iron-Catalyzed Oxidative CH/CH Cross-Coupling: An Efficient Route to α-Quaternary α-Amino Acid Derivatives. Angew Chem Int Ed Engl 2013; 52:12942-5. [DOI: 10.1002/anie.201306181] [Citation(s) in RCA: 104] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2013] [Indexed: 11/11/2022]
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90
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Li K, Tan G, Huang J, Song F, You J. Iron-Catalyzed Oxidative CH/CH Cross-Coupling: An Efficient Route to α-Quaternary α-Amino Acid Derivatives. Angew Chem Int Ed Engl 2013. [DOI: 10.1002/ange.201306181] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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91
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Acker TM, Khatri A, Vance KM, Slabber C, Bacsa J, Snyder JP, Traynelis SF, Liotta DC. Structure-activity relationships and pharmacophore model of a noncompetitive pyrazoline containing class of GluN2C/GluN2D selective antagonists. J Med Chem 2013; 56:6434-56. [PMID: 23909910 DOI: 10.1021/jm400652r] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Here we describe the synthesis and structure-activity relationship for a class of pyrazoline-containing dihydroquinolone negative allosteric modulators of the NMDA receptor that show strong subunit selectivity for GluN2C- and GluN2D-containing receptors over GluN2A- and GluN2B-containing receptors. Several members of this class inhibit NMDA receptor responses in the nanomolar range and are more than 50-fold selective over GluN1/GluN2A and GluN1/GluN2B NMDA receptors, as well as AMPA, kainate, GABA, glycine, nicotinic, serotonin, and purinergic receptors. Analysis of the purified enantiomers of one of the more potent and selective compounds shows that the S-enantiomer is both more potent and more selective than the R-enantiomer. The S-enantiomer had an IC50 of 0.17-0.22 μM at GluN2D- and GluN2C-containing receptors, respectively, and showed over 70-fold selectivity over other NMDA receptor subunits. The subunit selectivity of this class of compounds should be useful in defining the role of GluN2C- and GluN2D-containing receptors in specific brain circuits in both physiological and pathophysiological conditions.
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Affiliation(s)
- Timothy M Acker
- Department of Chemistry, Emory University, 1515 Dickey Drive, Atlanta, Georgia 30322, United States.
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92
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Risgaard R, Nielsen SD, Hansen KB, Jensen CM, Nielsen B, Traynelis SF, Clausen RP. Development of 2'-substituted (2S,1'R,2'S)-2-(carboxycyclopropyl)glycine analogues as potent N-methyl-d-aspartic acid receptor agonists. J Med Chem 2013; 56:4071-81. [PMID: 23614571 DOI: 10.1021/jm400346a] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A series of 2'-substituted analogues of the selective NMDA receptor ligand (2S,1'R,2'S)-2-(carboxycyclopropyl)glycine ((S)-CCG-IV) have been designed, synthesized, and pharmacologically characterized. The design was based on a docking study hypothesizing that substituents in the 2'-position would protrude into a region where differences among the NMDA receptor GluN2 subunits exist. Various synthetic routes were explored, and two different routes provided a series of alkyl-substituted analogues. Pharmacological characterization revealed that these compounds are NMDA receptor agonists and that potency decreases with increasing size of the alkyl groups. Variations in agonist activity are observed at the different recombinant NMDA receptor subtypes. This study demonstrates that it is possible to introduce substituents in the 2'-position of (S)-CCG-IV while maintaining agonist activity and that variation among NMDA receptor subtypes may be achieved by probing this region of the receptor.
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Affiliation(s)
- Rune Risgaard
- Department of Drug Design and Pharmacology, Faculty of Health and Medical Sciences, University of Copenhagen, 2 Universitetsparken, DK-2100 Copenhagen, Denmark
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93
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Trippier PC, Labby KJ, Hawker DD, Mataka JJ, Silverman RB. Target- and mechanism-based therapeutics for neurodegenerative diseases: strength in numbers. J Med Chem 2013; 56:3121-47. [PMID: 23458846 PMCID: PMC3637880 DOI: 10.1021/jm3015926] [Citation(s) in RCA: 102] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
The development of new therapeutics for the treatment of neurodegenerative pathophysiologies currently stands at a crossroads. This presents an opportunity to transition future drug discovery efforts to target disease modification, an area in which much still remains unknown. In this Perspective we examine recent progress in the areas of neurodegenerative drug discovery, focusing on some of the most common targets and mechanisms: N-methyl-d-aspartic acid (NMDA) receptors, voltage gated calcium channels (VGCCs), neuronal nitric oxide synthase (nNOS), oxidative stress from reactive oxygen species, and protein aggregation. These represent the key players identified in neurodegeneration and are part of a complex, intertwined signaling cascade. The synergistic delivery of two or more compounds directed against these targets, along with the design of small molecules with multiple modes of action, should be explored in pursuit of more effective clinical treatments for neurodegenerative diseases.
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Affiliation(s)
- Paul C. Trippier
- Department of Chemistry, Northwestern University, Evanston, Illinois 60208-3113, USA
| | - Kristin Jansen Labby
- Department of Chemistry, Northwestern University, Evanston, Illinois 60208-3113, USA
| | - Dustin D. Hawker
- Department of Chemistry, Northwestern University, Evanston, Illinois 60208-3113, USA
| | - Jan J. Mataka
- Department of Chemistry, Northwestern University, Evanston, Illinois 60208-3113, USA
| | - Richard B. Silverman
- Department of Chemistry, Northwestern University, Evanston, Illinois 60208-3113, USA
- Department of Molecular Biosciences, Chemistry of Life Processes Institute, Center for Molecular Innovation and Drug Discovery, Northwestern University, Evanston, IL, USA
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94
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Ung AT, Pyne SG, Bischoff F, Lesage AS, Skelton BW, White AH. Synthesis and inhibitory activities at mGluRs of 3-alkylated and N-alkylated cyclopentyl-glutamate analogues. Tetrahedron 2013. [DOI: 10.1016/j.tet.2013.01.054] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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95
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Abstract
The carboxylic acid functional group can be an important constituent of a pharmacophore, however, the presence of this moiety can also be responsible for significant drawbacks, including metabolic instability, toxicity, as well as limited passive diffusion across biological membranes. To avoid some of these shortcomings while retaining the desired attributes of the carboxylic acid moiety, medicinal chemists often investigate the use of carboxylic acid (bio)isosteres. The same type of strategy can also be effective for a variety other purposes, for example, to increase the selectivity of a biologically active compound or to create new intellectual property. Several carboxylic acid isosteres have been reported, however, the outcome of any isosteric replacement cannot be readily predicted as this strategy is generally found to be dependent upon the particular context (i.e., the characteristic properties of the drug and the drug-target). As a result, screening of a panel of isosteres is typically required. In this context, the discovery and development of novel carboxylic acid surrogates that could complement the existing palette of isosteres remains an important area of research. The goal of this Minireview is to provide an overview of the most commonly employed carboxylic acid (bio)isosteres and to present representative examples demonstrating the use and utility of each isostere in drug design.
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Affiliation(s)
- Carlo Ballatore
- Department of Chemistry, University of Pennsylvania, 231 South 34th St., Philadelphia, PA 19104, USA.
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96
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97
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England PM. Developing a photoreactive antagonist. Methods Mol Biol 2013; 995:121-129. [PMID: 23494376 DOI: 10.1007/978-1-62703-345-9_9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
Light is an exquisite reagent for controlling the activity of biological systems, often offering improved temporal and spatial resolution over strictly genetic, biochemical, or pharmacological manipulations. This chapter describes a general approach for developing small molecules that, upon irradiation with light, may be used to rapidly inactivate targeted proteins expressed on the surfaces of cells. Highlighted is ANQX, a photoreactive AMPA receptor antagonist developed to irreversibly inactivate a subtype of glutamate-gated ion channels natively expressed on neurons.
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Affiliation(s)
- Pamela M England
- Department of Pharmaceutical Chemistry, University of California San Francisco, San Francisco, CA, USA
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98
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Sim N, Gottschalk S, Pal R, Engelmann J, Parker D, Mishra A. Responsive MR-imaging probes for N-methyl-d-aspartate receptors and direct visualisation of the cell-surface receptors by optical microscopy. Chem Sci 2013. [DOI: 10.1039/c3sc50903f] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
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99
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Asymmetric synthesis of conformationally constrained L-AP4 analogues using chiral sulfinyl auxiliary. Tetrahedron 2013. [DOI: 10.1016/j.tet.2012.10.085] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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100
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Altava B, Isabel Burguete M, Carbó N, Luis SV, Martí-Centelles V, Vicent C. Bis(amino amides) derived from natural amino acids as chiral receptors for N-protected dicarboxylic amino acids. Tetrahedron Lett 2013. [DOI: 10.1016/j.tetlet.2012.10.099] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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