1
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Synthesis of polyfluorinated 4‑hydroxyquinolin-2(1H)‑ones based on the cyclization of 2-alkynylanilines with carbon dioxide. J Fluor Chem 2021. [DOI: 10.1016/j.jfluchem.2020.109720] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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2
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Krishna A, Vijayakumar V, Sarveswari S. Synthesis of New 3‐(2‐Amino‐6‐arylpyrimidin‐4‐yl)‐4‐hydroxyquinolin‐2(1
H
)‐ones and Their In Vitro Antimicrobial and “DPPH” Scavenging Activity Evaluation. ChemistrySelect 2020. [DOI: 10.1002/slct.202002082] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Alla. Krishna
- Department of ChemistryVellore Institute of Technology Vellore 632014 Tamilnadu India
- LGC Promochem private limited Bangalore India
| | - V. Vijayakumar
- Department of ChemistryVellore Institute of Technology Vellore 632014 Tamilnadu India
| | - S. Sarveswari
- Department of ChemistryVellore Institute of Technology Vellore 632014 Tamilnadu India
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3
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Krishna A, Sarveswari S. One‐Pot Synthesis of 2‐Amino‐6‐(1,2‐dihydro‐4‐hydroxy‐2‐oxoquinolin‐3‐yl)‐4‐arylpyridine‐3‐carbonitriles Catalysed by NbCl
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and Their In Vitro Antimicrobial Studies. ChemistrySelect 2019. [DOI: 10.1002/slct.201901866] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Alla. Krishna
- Department of ChemistryVellore Institute of Technology 632014, Tamilnadu Vellore India
- LGC Promochem private limited Bangalore
| | - S. Sarveswari
- Department of ChemistryVellore Institute of Technology 632014, Tamilnadu Vellore India
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4
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Alla K, Sarveswari S. An Ultrasound-Promoted Efficient Synthesis of New 4-Hydroxy-2(1H)-quinolone-Derived Amino Nitrile Pyridines. IRANIAN JOURNAL OF SCIENCE AND TECHNOLOGY, TRANSACTIONS A: SCIENCE 2018. [DOI: 10.1007/s40995-018-0567-z] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
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5
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El Bakali J, Muccioli GG, Body-Malapel M, Djouina M, Klupsch F, Ghinet A, Barczyk A, Renault N, Chavatte P, Desreumaux P, Lambert DM, Millet R. Conformational Restriction Leading to a Selective CB2 Cannabinoid Receptor Agonist Orally Active Against Colitis. ACS Med Chem Lett 2015; 6:198-203. [PMID: 25699149 DOI: 10.1021/ml500439x] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2014] [Accepted: 12/04/2014] [Indexed: 12/23/2022] Open
Abstract
The CB2 cannabinoid receptor has been implicated in the regulation of intestinal inflammation. Following on from the promising activity of a series of 4-oxo-1,4-dihydroquinoline-3-carboxamide, we developed constrained analogues based on a 2H-pyrazolo[4,3-c]quinolin-3(5H)-one scaffold, with improved affinity for the hCB2 receptor and had very high selectivity over the hCB1 receptor. Importantly, the lead of this series (26, hCB2: K i = 0.39 nM, hCB1: K i > 3000 nM) was found to protect mice against experimental colitis after oral administration.
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Affiliation(s)
- Jamal El Bakali
- Institut
de Chimie Pharmaceutique Albert Lespagnol, Université de Lille Nord de France, E.A 4481, IFR 114, 3 rue du Pr. Laguesse, B.P.
83, F-59006 Lille
Cedex, France
| | - Giulio G. Muccioli
- Unité
de Chimie Pharmaceutique et de Radiopharmacie, Louvain Drug Research
Institute, Université catholique de Louvain, 73 avenue
E. Mounier UCL-CMFA (7340), B-1200 Bruxelles, Belgium
| | - Mathilde Body-Malapel
- Digestive inflammatory diseases: pathophysiology and development of therapeutic targets. U995 INSERM, Université Lille Nord de France, IFR 114, Amphis J & K, Boulevard du Professeur J. Leclercq, 59045 Lille Cedex, France
| | - Madjid Djouina
- Digestive inflammatory diseases: pathophysiology and development of therapeutic targets. U995 INSERM, Université Lille Nord de France, IFR 114, Amphis J & K, Boulevard du Professeur J. Leclercq, 59045 Lille Cedex, France
| | - Frédérique Klupsch
- Institut
de Chimie Pharmaceutique Albert Lespagnol, Université de Lille Nord de France, E.A 4481, IFR 114, 3 rue du Pr. Laguesse, B.P.
83, F-59006 Lille
Cedex, France
| | - Alina Ghinet
- Institut
de Chimie Pharmaceutique Albert Lespagnol, Université de Lille Nord de France, E.A 4481, IFR 114, 3 rue du Pr. Laguesse, B.P.
83, F-59006 Lille
Cedex, France
| | - Amélie Barczyk
- Institut
de Chimie Pharmaceutique Albert Lespagnol, Université de Lille Nord de France, E.A 4481, IFR 114, 3 rue du Pr. Laguesse, B.P.
83, F-59006 Lille
Cedex, France
| | - Nicolas Renault
- Institut
de Chimie Pharmaceutique Albert Lespagnol, Université de Lille Nord de France, E.A 4481, IFR 114, 3 rue du Pr. Laguesse, B.P.
83, F-59006 Lille
Cedex, France
| | - Philippe Chavatte
- Institut
de Chimie Pharmaceutique Albert Lespagnol, Université de Lille Nord de France, E.A 4481, IFR 114, 3 rue du Pr. Laguesse, B.P.
83, F-59006 Lille
Cedex, France
| | - Pierre Desreumaux
- Digestive inflammatory diseases: pathophysiology and development of therapeutic targets. U995 INSERM, Université Lille Nord de France, IFR 114, Amphis J & K, Boulevard du Professeur J. Leclercq, 59045 Lille Cedex, France
| | - Didier M. Lambert
- Unité
de Chimie Pharmaceutique et de Radiopharmacie, Louvain Drug Research
Institute, Université catholique de Louvain, 73 avenue
E. Mounier UCL-CMFA (7340), B-1200 Bruxelles, Belgium
| | - Régis Millet
- Institut
de Chimie Pharmaceutique Albert Lespagnol, Université de Lille Nord de France, E.A 4481, IFR 114, 3 rue du Pr. Laguesse, B.P.
83, F-59006 Lille
Cedex, France
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6
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Mori T, Shimokawa Y, Matsui T, Kinjo K, Kato R, Noguchi H, Sugio S, Morita H, Abe I. Cloning and structure-function analyses of quinolone- and acridone-producing novel type III polyketide synthases from Citrus microcarpa. J Biol Chem 2013; 288:28845-58. [PMID: 23963450 DOI: 10.1074/jbc.m113.493155] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
Two novel type III polyketide synthases, quinolone synthase (QNS) and acridone synthase (ACS), were cloned from Citrus microcarpa (Rutaceae). The deduced amino acid sequence of C. microcarpa QNS is unique, and it shared only 56-60% identities with C. microcarpa ACS, Medicago sativa chalcone synthase (CHS), and the previously reported Aegle marmelos QNS. In contrast to the quinolone- and acridone-producing A. marmelos QNS, C. microcarpa QNS produces 4-hydroxy-N-methylquinolone as the "single product" by the one-step condensation of N-methylanthraniloyl-CoA and malonyl-CoA. However, C. microcarpa ACS shows broad substrate specificities and produces not only acridone and quinolone but also chalcone, benzophenone, and phloroglucinol from 4-coumaroyl-CoA, benzoyl-CoA, and hexanoyl-CoA, respectively. Furthermore, the x-ray crystal structures of C. microcarpa QNS and ACS, solved at 2.47- and 2.35-Å resolutions, respectively, revealed wide active site entrances in both enzymes. The wide active site entrances thus provide sufficient space to facilitate the binding of the bulky N-methylanthraniloyl-CoA within the catalytic centers. However, the active site cavity volume of C. microcarpa ACS (760 Å(3)) is almost as large as that of M. sativa CHS (750 Å(3)), and ACS produces acridone by employing an active site cavity and catalytic machinery similar to those of CHS. In contrast, the cavity of C. microcarpa QNS (290 Å(3)) is significantly smaller, which makes this enzyme produce the diketide quinolone. These results as well as mutagenesis analyses provided the first structural bases for the anthranilate-derived production of the quinolone and acridone alkaloid by type III polyketide synthases.
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Affiliation(s)
- Takahiro Mori
- From the Graduate School of Pharmaceutical Sciences, University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033
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7
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Goncalves V, Brannigan JA, Whalley D, Ansell KH, Saxty B, Holder AA, Wilkinson AJ, Tate EW, Leatherbarrow RJ. Discovery of Plasmodium vivax N-myristoyltransferase inhibitors: screening, synthesis, and structural characterization of their binding mode. J Med Chem 2012; 55:3578-82. [PMID: 22439843 DOI: 10.1021/jm300040p] [Citation(s) in RCA: 54] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
N-Myristoyltransferase (NMT) is a prospective drug target against parasitic protozoa. Herein we report the successful discovery of a series of Plasmodium vivax NMT inhibitors by high-throughput screening. A high-resolution crystal structure of the hit compound in complex with NMT was obtained, allowing understanding of its novel binding mode. A set of analogues was designed and tested to define the chemical groups relevant for activity and selectivity.
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Affiliation(s)
- Victor Goncalves
- Department of Chemistry, Imperial College London, London SW7 2AZ, United Kingdom
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8
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Farran D, Archirel P, Toupet L, Martinez J, Dewynter G. Enantiodivergent Transannular Rearrangement of 3-Isopropyl-1,4-benzodiazepine-2,5-dione by Memory of Chirality. European J Org Chem 2011. [DOI: 10.1002/ejoc.201100030] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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9
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Brouillette Y, Martinez J, Lisowski V. Chemistry of Ring‐Fused Oxazine‐2,4‐diones. European J Org Chem 2009. [DOI: 10.1002/ejoc.200801007] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Yann Brouillette
- Institut des Biomolécules Max‐Mousseron, UMR 5247, CNRS, Universités Montpellier I et II, UFR de Sciences Pharmaceutiques et Biologiques, 15 Avenue Charles Flahault, 34093 Montpellier, France, Fax: +33‐4‐67 54 86 54
| | - Jean Martinez
- Institut des Biomolécules Max‐Mousseron, UMR 5247, CNRS, Universités Montpellier I et II, UFR de Sciences Pharmaceutiques et Biologiques, 15 Avenue Charles Flahault, 34093 Montpellier, France, Fax: +33‐4‐67 54 86 54
| | - Vincent Lisowski
- Institut des Biomolécules Max‐Mousseron, UMR 5247, CNRS, Universités Montpellier I et II, UFR de Sciences Pharmaceutiques et Biologiques, 15 Avenue Charles Flahault, 34093 Montpellier, France, Fax: +33‐4‐67 54 86 54
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10
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Fan J, Wan C, Sun G, Wang Z. Cascade Synthesis of 3-Quinolinecarboxylic Ester via Benzylation/ Propargylation−Cyclization. J Org Chem 2008; 73:8608-11. [DOI: 10.1021/jo8017654] [Citation(s) in RCA: 55] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Jinmin Fan
- Hefei National Laboratory for Physical Science at Microscale, Joint laboratory of Green Synthetic Chemistry and Department of Chemistry, University of Science and Technology of China, Hefei, Anhui 230026, P. R. China
| | - Changfeng Wan
- Hefei National Laboratory for Physical Science at Microscale, Joint laboratory of Green Synthetic Chemistry and Department of Chemistry, University of Science and Technology of China, Hefei, Anhui 230026, P. R. China
| | - Gaojun Sun
- Hefei National Laboratory for Physical Science at Microscale, Joint laboratory of Green Synthetic Chemistry and Department of Chemistry, University of Science and Technology of China, Hefei, Anhui 230026, P. R. China
| | - Zhiyong Wang
- Hefei National Laboratory for Physical Science at Microscale, Joint laboratory of Green Synthetic Chemistry and Department of Chemistry, University of Science and Technology of China, Hefei, Anhui 230026, P. R. China
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11
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Stern E, Muccioli GG, Bosier B, Hamtiaux L, Millet R, Poupaert JH, Hénichart JP, Depreux P, Goossens JF, Lambert DM. Pharmacomodulations around the 4-Oxo-1,4-dihydroquinoline-3-carboxamides, a Class of Potent CB2-Selective Cannabinoid Receptor Ligands: Consequences in Receptor Affinity and Functionality. J Med Chem 2007; 50:5471-84. [DOI: 10.1021/jm070387h] [Citation(s) in RCA: 58] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Eric Stern
- Institut de Chimie Pharmaceutique Albert Lespagnol, Université de Lille 2, EA 2692, 3 rue du Pr. Laguesse, B.P. 83, F-59006 Lille, France, Unité de Chimie Pharmaceutique et de Radiopharmacie, Ecole de Pharmacie, Faculté de Médecine, Université catholique de Louvain, 73 avenue E. Mounier UCL-CMFA (7340), B-1200 Bruxelles, Belgium, and Laboratoire de Chimie Analytique, EA 4034, Faculté des Sciences Pharmaceutiques et Biologiques, Université de Lille 2, 3 rue du Pr. Laguesse, B.P. 83, F-59006 Lille, France
| | - Giulio G. Muccioli
- Institut de Chimie Pharmaceutique Albert Lespagnol, Université de Lille 2, EA 2692, 3 rue du Pr. Laguesse, B.P. 83, F-59006 Lille, France, Unité de Chimie Pharmaceutique et de Radiopharmacie, Ecole de Pharmacie, Faculté de Médecine, Université catholique de Louvain, 73 avenue E. Mounier UCL-CMFA (7340), B-1200 Bruxelles, Belgium, and Laboratoire de Chimie Analytique, EA 4034, Faculté des Sciences Pharmaceutiques et Biologiques, Université de Lille 2, 3 rue du Pr. Laguesse, B.P. 83, F-59006 Lille, France
| | - Barbara Bosier
- Institut de Chimie Pharmaceutique Albert Lespagnol, Université de Lille 2, EA 2692, 3 rue du Pr. Laguesse, B.P. 83, F-59006 Lille, France, Unité de Chimie Pharmaceutique et de Radiopharmacie, Ecole de Pharmacie, Faculté de Médecine, Université catholique de Louvain, 73 avenue E. Mounier UCL-CMFA (7340), B-1200 Bruxelles, Belgium, and Laboratoire de Chimie Analytique, EA 4034, Faculté des Sciences Pharmaceutiques et Biologiques, Université de Lille 2, 3 rue du Pr. Laguesse, B.P. 83, F-59006 Lille, France
| | - Laurie Hamtiaux
- Institut de Chimie Pharmaceutique Albert Lespagnol, Université de Lille 2, EA 2692, 3 rue du Pr. Laguesse, B.P. 83, F-59006 Lille, France, Unité de Chimie Pharmaceutique et de Radiopharmacie, Ecole de Pharmacie, Faculté de Médecine, Université catholique de Louvain, 73 avenue E. Mounier UCL-CMFA (7340), B-1200 Bruxelles, Belgium, and Laboratoire de Chimie Analytique, EA 4034, Faculté des Sciences Pharmaceutiques et Biologiques, Université de Lille 2, 3 rue du Pr. Laguesse, B.P. 83, F-59006 Lille, France
| | - Régis Millet
- Institut de Chimie Pharmaceutique Albert Lespagnol, Université de Lille 2, EA 2692, 3 rue du Pr. Laguesse, B.P. 83, F-59006 Lille, France, Unité de Chimie Pharmaceutique et de Radiopharmacie, Ecole de Pharmacie, Faculté de Médecine, Université catholique de Louvain, 73 avenue E. Mounier UCL-CMFA (7340), B-1200 Bruxelles, Belgium, and Laboratoire de Chimie Analytique, EA 4034, Faculté des Sciences Pharmaceutiques et Biologiques, Université de Lille 2, 3 rue du Pr. Laguesse, B.P. 83, F-59006 Lille, France
| | - Jacques H. Poupaert
- Institut de Chimie Pharmaceutique Albert Lespagnol, Université de Lille 2, EA 2692, 3 rue du Pr. Laguesse, B.P. 83, F-59006 Lille, France, Unité de Chimie Pharmaceutique et de Radiopharmacie, Ecole de Pharmacie, Faculté de Médecine, Université catholique de Louvain, 73 avenue E. Mounier UCL-CMFA (7340), B-1200 Bruxelles, Belgium, and Laboratoire de Chimie Analytique, EA 4034, Faculté des Sciences Pharmaceutiques et Biologiques, Université de Lille 2, 3 rue du Pr. Laguesse, B.P. 83, F-59006 Lille, France
| | - Jean-Pierre Hénichart
- Institut de Chimie Pharmaceutique Albert Lespagnol, Université de Lille 2, EA 2692, 3 rue du Pr. Laguesse, B.P. 83, F-59006 Lille, France, Unité de Chimie Pharmaceutique et de Radiopharmacie, Ecole de Pharmacie, Faculté de Médecine, Université catholique de Louvain, 73 avenue E. Mounier UCL-CMFA (7340), B-1200 Bruxelles, Belgium, and Laboratoire de Chimie Analytique, EA 4034, Faculté des Sciences Pharmaceutiques et Biologiques, Université de Lille 2, 3 rue du Pr. Laguesse, B.P. 83, F-59006 Lille, France
| | - Patrick Depreux
- Institut de Chimie Pharmaceutique Albert Lespagnol, Université de Lille 2, EA 2692, 3 rue du Pr. Laguesse, B.P. 83, F-59006 Lille, France, Unité de Chimie Pharmaceutique et de Radiopharmacie, Ecole de Pharmacie, Faculté de Médecine, Université catholique de Louvain, 73 avenue E. Mounier UCL-CMFA (7340), B-1200 Bruxelles, Belgium, and Laboratoire de Chimie Analytique, EA 4034, Faculté des Sciences Pharmaceutiques et Biologiques, Université de Lille 2, 3 rue du Pr. Laguesse, B.P. 83, F-59006 Lille, France
| | - Jean-François Goossens
- Institut de Chimie Pharmaceutique Albert Lespagnol, Université de Lille 2, EA 2692, 3 rue du Pr. Laguesse, B.P. 83, F-59006 Lille, France, Unité de Chimie Pharmaceutique et de Radiopharmacie, Ecole de Pharmacie, Faculté de Médecine, Université catholique de Louvain, 73 avenue E. Mounier UCL-CMFA (7340), B-1200 Bruxelles, Belgium, and Laboratoire de Chimie Analytique, EA 4034, Faculté des Sciences Pharmaceutiques et Biologiques, Université de Lille 2, 3 rue du Pr. Laguesse, B.P. 83, F-59006 Lille, France
| | - Didier M. Lambert
- Institut de Chimie Pharmaceutique Albert Lespagnol, Université de Lille 2, EA 2692, 3 rue du Pr. Laguesse, B.P. 83, F-59006 Lille, France, Unité de Chimie Pharmaceutique et de Radiopharmacie, Ecole de Pharmacie, Faculté de Médecine, Université catholique de Louvain, 73 avenue E. Mounier UCL-CMFA (7340), B-1200 Bruxelles, Belgium, and Laboratoire de Chimie Analytique, EA 4034, Faculté des Sciences Pharmaceutiques et Biologiques, Université de Lille 2, 3 rue du Pr. Laguesse, B.P. 83, F-59006 Lille, France
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Abe I, Abe T, Wanibuchi K, Noguchi H. Enzymatic formation of quinolone alkaloids by a plant type III polyketide synthase. Org Lett 2007; 8:6063-5. [PMID: 17165930 DOI: 10.1021/ol0625233] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
[Structure: see text] Benzalacetone synthase from Rheum palmatum efficiently catalyzed condensation of N-methylanthraniloyl-CoA (or anthraniloyl-CoA) with malonyl-CoA (or methylmalonyl-CoA) to produce 4-hydroxy-2(1H)-quinolones, a novel alkaloidal scaffold produced by a type III polyketide synthase (PKS). Manipulation of the functionally divergent type III PKSs by a nonphysiological substrate thus provides an efficient method for production of pharmaceutically important quinolone alkaloids.
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Affiliation(s)
- Ikuro Abe
- School of Pharmaceutical Sciences and the COE 21 Program, University of Shizuoka, Shizuoka 422-8526, Japan.
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13
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4-hydroxy-2-quinolones. 94. Improved synthesis and structure of 1-hydroxy-3-oxo-5,6-dihydro-3h-pyrrolo[3,2,1-i,j]-quinoline-2-carboxylic acid ethyl ester. Chem Heterocycl Compd (N Y) 2006. [DOI: 10.1007/s10593-006-0138-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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14
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Chimichi S, Boccalini M, Hassan MM, Viola G, Dall'Acqua F, Curini M. Synthesis, structural determination and photo-antiproliferative activity of new 3-pyrazolyl or -isoxazolyl substituted 4-hydroxy-2(1H)-quinolinones. Tetrahedron 2006. [DOI: 10.1016/j.tet.2005.09.135] [Citation(s) in RCA: 40] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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15
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Dittmer DC, Li Q, Avilov DV. Synthesis of Coumarins, 4-Hydroxycoumarins, and 4-Hydroxyquinolinones by Tellurium-Triggered Cyclizations1. J Org Chem 2005; 70:4682-6. [PMID: 15932305 DOI: 10.1021/jo050070u] [Citation(s) in RCA: 65] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Coumarins, 4-hydroxycoumarins, and 4-hydroxyquinolin-2(1H)-ones can be conveniently prepared by treatment of alpha-halocarboxylic acid esters of salicylaldehyde, o-hydroxyacetophenone, methyl salicylate, and methyl N-methyl- or N-phenylanthranilates with sodium or lithium telluride. Phenylketene formation competes with cyclization of the alpha-chlorophenylacetate ester of methyl salicylate as demonstrated by a trapping experiment with benzylamine. Elemental tellurium may be recovered and reused.
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Affiliation(s)
- Donald C Dittmer
- Department of Chemistry, Syracuse University, Room 1-014 CST, Syracuse, New York 13244, USA.
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16
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Athanasellis G, Gavrielatos E, Igglessi-Markopoulou O, Markopoulos J. Novel ‘quinolone’ metal complexes: Synthesis and spectroscopic studies of mg(II), zn(II) and ba(II) complexes with N-methyl (or NH)-3-acetyl-4-hydroxy quinolin-2-one ligands. J Heterocycl Chem 2003. [DOI: 10.1002/jhet.5570400413] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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17
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Cappelli A, Anzini M, Vomero S, Mennuni L, Makovec F, Doucet E, Hamon M, Menziani MC, De Benedetti PG, Giorgi G, Ghelardini C, Collina S. Novel potent 5-HT(3) receptor ligands based on the pyrrolidone structure: synthesis, biological evaluation, and computational rationalization of the ligand-receptor interaction modalities. Bioorg Med Chem 2002; 10:779-801. [PMID: 11814868 DOI: 10.1016/s0968-0896(01)00332-7] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Novel conformationally constrained derivatives of classical 5-HT(3) receptor antagonists were designed and synthesized with the aim of probing the central 5-HT(3) receptor recognition site in a systematic way. The newly-synthesized compounds were tested for their potential ability to inhibit [(3)H]granisetron specific binding to 5-HT(3) receptor in rat cortical membranes. These studies revealed subnanomolar affinity in some of the compounds under study. The most potent ligand in this series was found to be quinuclidine derivative (S)-7i, which showed an affinity comparable with that of the reference ligand granisetron. The potential 5-HT(3) agonist/antagonist activity of some selected compounds was assessed in vitro on the 5-HT(3) receptor-dependent [(14)C]guanidinium uptake in NG 108-15 cells. Both of the tropane derivatives tested in this functional assay (7a and 9a) showed antagonist properties, while the quinuclidine derivatives studied [the enantiomers of compounds 7i, 8g, and 9g, and compound (R)-8h] showed a full range of intrinsic efficacies. Therefore, the functional behavior of these 5-HT(3) receptor ligands appears to be affected by the structural features of both the azabicyclo moiety and the heteroaromatic portion. In agreement with the data obtained on NG 108-15 cells, investigations on the 5-HT(3) receptor-dependent Bezold-Jarisch reflex in urethane-anaesthetized rats confirmed the 5-HT(3) receptor antagonist properties of compounds 7a and (S)-7i showing for these compounds ID(50) values of 2.8 and 181 microg/kg, respectively. Finally, compounds 7a, (S)-7i and 9a (at the doses of 0.01, 1.0, and 0.01 mg/kg ip, respectively) prevented scopolamine-induced amnesia in the mouse passive avoidance test suggestive of a potential usefulness in cognitive disorders for these compounds. Qualitative and quantitative structure-affinity relationship studies were carried out by means of theoretical descriptors derived on a single structure and ad-hoc defined size and shape descriptors (indirect approach). The results showed to be useful in capturing information relevant to ligand-receptor interaction. Additional information derived by the analysis of the energy minimized 3-D structures of the ligand-receptor complexes (direct approach) suggested interesting mechanistic and methodological considerations on the binding mode multiplicity at the 5-HT(3) receptors and on the degree of tolerance allowed in the alignment of molecules for the indirect approach, respectively.
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Affiliation(s)
- Andrea Cappelli
- Dipartimento Farmaco Chimico Tecnologico, Università di Siena, Via A. Moro, 53100 Siena, Italy.
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Kobayashi K, Nakashima T, Mano M, Morikawa O, Konishi H. Synthesis of 4-Hydroxy-3-quinolinecarboxylic Acid Derivatives by a Condensation/Cyclization Sequence betweeno-Isocyanobenzoates and Magnesium Enolates. CHEM LETT 2001. [DOI: 10.1246/cl.2001.602] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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19
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Collin X, Robert JM, Duflos M, Wielgosz G, Le Baut G, Bobin-Dubigeon C, Grimaud N, Lang F, Petit JY, Robin-Dubigeon C. Synthesis of N-pyridinyl(methyl)-1,2-dihydro-4-hydroxy-2-oxoquinoline-3-carboxamides and analogues and their anti-inflammatory activity in mice and rats. J Pharm Pharmacol 2001; 53:417-23. [PMID: 11291760 DOI: 10.1211/0022357011775505] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022]
Abstract
The topical anti-inflammatory activity of a series of N-pyridinyl(methyl)1,2-dihydro-4-hydroxy-2-oxoquinoline-3-carboxamides, analogues of roquinimex, has been evaluated by measuring their inhibitory effect in the phorbol myristate acetate (PMA)-induced mouse ear swelling test, used as a screening test. All the eight carboxamides tested (9-16) exhibited significant inhibitory activity at 0.4 and 0.2 mM kg(-1). The most potent compound, the 6-bromo derivative 12, induced a 73% inhibition at 0.2 mM kg(-1). Pharmacomodulation was carried out by heterocycle opening and molecular simplification leading to pentafluorobenzoylacetamide 17, pentafluorocinnamamides 18 and 19, and pentafluorobenzaldimines 20 and 21. All the five compounds exerted a reduction in swelling (49-63% at 0.2 mM kg(-1)) comparable with ibuprofen (56%). Anti-inflammatory activity of the most efficient compounds was evaluated by carrageenan-induced rat paw oedema inhibition. The pentafluorobenzaldimine 20 showed the highest activity with an inhibition percentage of 85% at 0.2 mM kg(-1).
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Affiliation(s)
- X Collin
- Laboratories de Chimie Organique et de Chimie Thérapeutique, Faculté de Pharmacie, Nantes, France
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20
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21
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Direct agonists for serotonin receptors enhance locomotor function in rats that received neural transplants after neonatal spinal transection. J Neurosci 1999. [PMID: 10407057 DOI: 10.1523/jneurosci.19-14-06213.1999] [Citation(s) in RCA: 69] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
We analyzed whether acute treatment with serotonergic agonists would improve motor function in rats with transected spinal cords (spinal rats) and in rats that received transplants of fetal spinal cord into the transection site (transplant rats). Neonates received midthoracic spinal transections within 48 hr of birth; transplant rats received fetal (embryonic day 14) spinal cord grafts at the time of transection. At 3 weeks, rats began 1-2 months of training in treadmill locomotion. Rats in the transplant group developed better weight-supported stepping than spinal rats. Systemic administration of two directly acting agonists for serotonergic 5-HT(2) receptor subtypes, quipazine and (+/-)-1-[2, 5]-dimethoxy-4-iodophenyl-2-aminopropane), further increased weight-supported stepping in transplant rats. The improvement was dose-dependent and greatest in rats with poor to moderate baseline weight support. In contrast, indirectly acting serotonergic agonists, which block reuptake of 5-HT (sertraline) or release 5-HT and block its reuptake (D-fenfluramine), failed to enhance motor function. Neither direct nor indirect agonists significantly improved locomotion in spinal rats as a group, despite equivalent upregulation of 5-HT(2) receptors in the lumbar ventral horn of lesioned rats with and without transplants. The distribution of immunoreactive serotonergic fibers within and caudal to the transplant did not appear to correspond to restoration of motor function. Our results confirm our previous demonstration that transplants improve motor performance in spinal rats. Additional stimulation with agonists at subtypes of 5-HT receptors produces a beneficial interaction with transplants that further improves motor competence.
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Ismaïli L, Refouvelet B, Robert JF. Synthesis of new pyrazolo[4,3-c]quinolin-3-one derivatives and some oxazolo[4,5-c]quinoline-2,4-diones. J Heterocycl Chem 1999. [DOI: 10.1002/jhet.5570360323] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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23
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Igglessi-Markopoulou O, Mitsos C, Zografos A. Synthesis of 3-Substituted 4-Hydroxyquinolin-2-ones via C-Acylation Reactions of Active Methylene Compounds with Functionalized 3,1-Benzoxazin-4-ones. HETEROCYCLES 1999. [DOI: 10.3987/com-99-8508] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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24
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Igglessi-Markopoulou O, Zografos A, Mitsos C. A Tandem C-Acylation-Cyclization Reaction Sequence for the Synthesis of New N-Acyl-3-substituted 1,8-Naphthyridine-2,4-diones. HETEROCYCLES 1999. [DOI: 10.3987/com-99-8496] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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25
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Sim MM, Lee CL, Ganesan A. Solid-phase combinatorial synthesis of 4-hydroxyquinolin-2(1H)-ones. Tetrahedron Lett 1998. [DOI: 10.1016/s0040-4039(98)01320-3] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/16/2022]
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26
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Arias-Pérez MS, Alejo A, Maroto A. Structural study of 3-azabicyclo[3.3.1]nonane derivatives functionalized at 1 and/or 9-positions by molecular mechanics calculations and NMR spectroscopy. Tetrahedron 1997. [DOI: 10.1016/s0040-4020(97)00832-6] [Citation(s) in RCA: 19] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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27
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Affiliation(s)
- L M Gaster
- SmithKline Beecham Pharmaceuticals, New Frontiers Science Park, Harlow, Essex, U.K
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28
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Abstract
Serotonin (5-hydroxytryptamine) is an important biogenic amine that fulfills the role of neurotransmitter and neuromodulator. It has been a focus of interest during the last decade. Its diversity of pharmacologic actions is related to a wide variety of receptors and effector mechanisms. Seven serotonin receptor families have been identified thus far. They are genetically different transmembrane proteins composed of several hundred amino acids. The majority of these are G-protein-coupled, except the 5-HT3 receptors, which are directly ligand gated to fast ion channels. Serotonin is widely distributed in the body within the central and peripheral nervous systems, smooth muscles, and platelets, in particular. Consequently, its effects manifest mainly in these organs and influence a wide variety of neural, vascular, smooth muscle, and platelet functions. (Melatonin, a physiologically active metabolite of serotonin, is also instrumental in affecting many neural and hormonal functions.) Several selective agonists and particularly many selective antagonists have been developed for serotonin, which helped the serotonin receptor subtype classification. Some of these drugs are also used therapeutically in the treatment of migraine (eg, sumatriptan, which is a 5-HT1 receptor agonist), vascular disorders (5-HT2 antagonists), and nausea and vomiting (5-HT3 antagonists, eg, dolasetron, granisetron, ondansetron, and tropisetron), and have been investigated in gastrointestinal motility disorders (5-HT4 antagonists) and behavioral psychopathologies (5-HT1 agonists and 5-HT2-4 antagonists). Serotonin reuptake inhibitors are of particular clinical importance in the treatment of psychological illness. Future use of these drugs is also envisioned in the treatment of certain types of pain syndromes. Awareness of the serotonergic drugs and the recognition of possible drug interactions among drugs that influence serotonergic mechanisms in humans are becoming increasingly important in the practice of anesthesiology.
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Affiliation(s)
- L Gyermek
- Department of Anesthesiology, UCLA School of Medicine, Harbor-UCLA Medical Center, Torrance 90509, USA
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29
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Csillik-Perczel V, Bakonyi A, Yemane T, Vitalis B, Horvath E, Solyom S, Szekely JI, Harsing LG. GYKI-46 903, a non-competitive antagonist for 5-HT3 receptors. PHARMACOLOGY & TOXICOLOGY 1996; 79:32-9. [PMID: 8841094 DOI: 10.1111/j.1600-0773.1996.tb00238.x] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
The effects of GYKI-46 903 ((+)endo-4-propionyloxy-6-(4-fluorophenyl)-1-azabicyclo [3.3.1]non-6-ene HCl), on 5-HT3 receptors have been studied and compared with ondansetron in peripheral organs in vitro and in vivo, and in a receptor binding assay in membranes prepared from rat cerebral cortex. GYKI-46 903 was found to be a non-competitive antagonist at 5-HT3 receptors present in non-stimulated longitudinal muscle strip of guinea-pig ileum (pD2' against serotonin = 5.54), and also in 5-methoxytryptamine-pretreated electrically stimulated ileal preparations (pD2' against serotonin = 5.26). On the contrary, ondansetron was found to be a competitive antagonist for 5-HT3 receptors; the pA2 value against serotonin was 7.40 in non-stimulated ileum, and it was 7.08 in electrically stimulated ileal preparation pretreated with 5-methoxytryptamine. In displacement studies, the pIC50 values of GYKI-46 903 and ondansetron against [3H]granisetron binding to rat cerebral cortex membranes were 6.91 and 8.58 respectively. GYKI-46 903, when administered by intravenous infusion, antagonized the decrease in heart rate evoked by serotonin (Bezold-Jarisch reflex) in anaesthetized rats, and the maximal reversal was less than 50%. This was in striking contrast with ondansetron, which, after intravenous injection, completely antagonized the serotonin-induced bradycardia with an ID50 value of 3.28 ug/kg. These data classify GYKI-46 903 as a non-competitive antagonist for 5-HT3 receptors.
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MESH Headings
- 5-Methoxytryptamine/pharmacology
- Animals
- Binding, Competitive
- Bradycardia/drug therapy
- Bridged Bicyclo Compounds, Heterocyclic/administration & dosage
- Bridged Bicyclo Compounds, Heterocyclic/pharmacology
- Bridged Bicyclo Compounds, Heterocyclic/therapeutic use
- Cerebral Cortex/drug effects
- Cerebral Cortex/metabolism
- Electric Stimulation
- Guinea Pigs
- Heart Rate/drug effects
- Ileum/drug effects
- Ileum/metabolism
- In Vitro Techniques
- Infusions, Intravenous
- Male
- Muscle Contraction/drug effects
- Muscle, Smooth/drug effects
- Ondansetron/administration & dosage
- Ondansetron/metabolism
- Ondansetron/toxicity
- Radioligand Assay
- Rats
- Rats, Sprague-Dawley
- Receptors, Serotonin/drug effects
- Receptors, Serotonin/metabolism
- Receptors, Serotonin, 5-HT3
- Serotonin Antagonists/metabolism
- Serotonin Antagonists/pharmacology
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30
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Abstract
The serotonin 5-HT3 receptor is unique among the seven serotonin receptor "families" that have been recognized so far. It functions not as a G-protein coupled but as a direct ion channel gated receptor. Because of the varied neural functions linked to this receptor, intensive research interest has developed in recent years about its basic and clinical pharmacology, which are summarized in this review. Some new agonists and many new antagonists have been developed. These agents have a useful role as selective pharmacologic research probes, and some of them can be used therapeutically as potent and selective anti-nausea and antiemetic drugs, particularly in patients undergoing cancer chemotherapy treatment or general anesthesia procedures. Potential applications of these agents include the treatment of some behavioral disorders in mental disease, drug addiction, and certain types of pain syndromes.
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Affiliation(s)
- L Gyermek
- Department of Anesthesiology, Harbor-UCLA Medical Center, Torrance 90509, USA
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31
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Structural study of ethyl 3-methyl-9-oxo-3-azabicyclo[3.3.1]nonane-1-carboxylate by two-dimensional NMR spectroscopy. J Mol Struct 1995. [DOI: 10.1016/0022-2860(95)08736-f] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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32
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Eglen RM, Bonhaus DW, Clark RD, Johnson LG, Lee CH, Leung E, Smith WL, Wong EH, Whiting RL. (R) and (S) RS 56532: mixed 5-HT3 and 5-HT4 receptor ligands with opposing enantiomeric selectivity. Neuropharmacology 1994; 33:515-26. [PMID: 7984291 DOI: 10.1016/0028-3908(94)90083-3] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
The pharmacological properties of the (R) and (S) enantiomers of RS 56532 have been studied in vitro and in vivo. In radioligand binding studies at 5-HT4 receptors in guinea-pig striatum, (S) RS 56532 exhibited a higher affinity than (R) RS 56532 (-log Ki = 7.6 and 6.5, respectively). (S) RS 56532 acted as a potent agonist at 5-HT4 receptors mediating relaxation of rat oesophageal muscularis mucosae (-log EC50 = 7.9) while (R) RS 56532 acted as a weaker agonist at this receptor (-log EC50 < 6.0). These data suggest that at 5-HT4 receptors, the enantiomeric selectivity of RS 56532 was (S) > (R). In binding studies at 5-HT3 receptors in rat cortex, (R) RS 56532, conversely, exhibited a higher affinity than (R) RS 56532 (-log Ki = 9.1 and 8.0, respectively). At 5-HT3 receptors in guinea-pig isolated ileum, (R) RS 56532 exhibited an affinity (-log KB) of 7.9, whereas (S) RS 56532 (1 nM-1 microM) was inactive. No agonism was observed at ileal 5-HT3 receptors with either enantiomers. These data suggest that at 5-HT3 receptors in rat and guinea-pig, both enantiomers acted as antagonists, with (R) > (S) RS 56532. At the non-5-HT3, high affinity '(R) zacopride' site, (R) RS 56532 exhibited a higher affinity than (S) RS 56532 (-log Ki = 6.1 and 4.9). This site was insensitive to potent 5-HT3 antagonists such as (R) YM 060 or ondansetron. However, it was recognized with relatively high affinity (-log Ki = 7.5) by the (R), but not (S) enantiomer, of RS 42358 (-log Ki = 4.7). Since (S) RS 42358 is a high affinity 5-HT3 receptor antagonist, these data further highlight the dissimilarity between the 5-HT3 receptor and the '(R) zacopride' site. The '(R) zacopride' site also appeared to be pharmacologically distinct from the 5-HT4 receptor, since 5-HT4 ligands such as renzapride, SDZ 205,557 or RS 23597-190 exhibited low affinities. The enantiomeric selectivity of (R) and (S) RS 56532 in vivo was consistent with findings in vitro. At 5-HT4 receptors mediating tachycardia in the pig, 5-HT induced a dose-dependent tachycardia (ED50 = 3 micrograms kg-1, i.v.; maximum response = 90-100 beats min-1). (S) RS 56532 increased heart rate by 88 min-1 with a potency of (ED50) of 3 micrograms kg-1, i.v.(ABSTRACT TRUNCATED AT 400 WORDS)
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Affiliation(s)
- R M Eglen
- Institute of Pharmacology, Syntex Discovery Research, Palo Alto, CA 94304
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