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Van Hoof M, Claes S, Boon K, Van Loy T, Schols D, Dehaen W, De Jonghe S. Exploration of Pyrido[3,4- d]pyrimidines as Antagonists of the Human Chemokine Receptor CXCR2. Molecules 2023; 28:molecules28052099. [PMID: 36903345 PMCID: PMC10004157 DOI: 10.3390/molecules28052099] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2023] [Revised: 02/20/2023] [Accepted: 02/20/2023] [Indexed: 02/26/2023] Open
Abstract
Upregulated CXCR2 signalling is found in numerous inflammatory, autoimmune and neurodegenerative diseases, as well as in cancer. Consequently, CXCR2 antagonism is a promising therapeutic strategy for treatment of these disorders. We previously identified, via scaffold hopping, a pyrido[3,4-d]pyrimidine analogue as a promising CXCR2 antagonist with an IC50 value of 0.11 µM in a kinetic fluorescence-based calcium mobilization assay. This study aims at exploring the structure-activity relationship (SAR) and improving the CXCR2 antagonistic potency of this pyrido[3,4-d]pyrimidine via systematic structural modifications of the substitution pattern. Almost all new analogues completely lacked the CXCR2 antagonism, the exception being a 6-furanyl-pyrido[3,4-d]pyrimidine analogue (compound 17b) that is endowed with similar antagonistic potency as the original hit.
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Affiliation(s)
- Max Van Hoof
- Molecular Design and Synthesis, Department of Chemistry, KU Leuven, Celestijnenlaan 200F, B-3001 Leuven, Belgium
| | - Sandra Claes
- Department of Microbiology, Immunology and Transplantation—Laboratory of Virology and Chemotherapy, KU Leuven—Rega Institute for Medical Research, Herestraat 49, B-3000 Leuven, Belgium
| | - Katrijn Boon
- Department of Microbiology, Immunology and Transplantation—Laboratory of Virology and Chemotherapy, KU Leuven—Rega Institute for Medical Research, Herestraat 49, B-3000 Leuven, Belgium
| | - Tom Van Loy
- Department of Microbiology, Immunology and Transplantation—Laboratory of Virology and Chemotherapy, KU Leuven—Rega Institute for Medical Research, Herestraat 49, B-3000 Leuven, Belgium
| | - Dominique Schols
- Department of Microbiology, Immunology and Transplantation—Laboratory of Virology and Chemotherapy, KU Leuven—Rega Institute for Medical Research, Herestraat 49, B-3000 Leuven, Belgium
| | - Wim Dehaen
- Molecular Design and Synthesis, Department of Chemistry, KU Leuven, Celestijnenlaan 200F, B-3001 Leuven, Belgium
| | - Steven De Jonghe
- Department of Microbiology, Immunology and Transplantation—Laboratory of Virology and Chemotherapy, KU Leuven—Rega Institute for Medical Research, Herestraat 49, B-3000 Leuven, Belgium
- Correspondence:
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2
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Pedron J, Boudot C, Brossas JY, Pinault E, Bourgeade-Delmas S, Sournia-Saquet A, Boutet-Robinet E, Destere A, Tronnet A, Bergé J, Bonduelle C, Deraeve C, Pratviel G, Stigliani JL, Paris L, Mazier D, Corvaisier S, Since M, Malzert-Fréon A, Wyllie S, Milne R, Fairlamb AH, Valentin A, Courtioux B, Verhaeghe P. New 8-Nitroquinolinone Derivative Displaying Submicromolar in Vitro Activities against Both Trypanosoma brucei and cruzi. ACS Med Chem Lett 2020; 11:464-472. [PMID: 32292551 PMCID: PMC7153024 DOI: 10.1021/acsmedchemlett.9b00566] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2019] [Accepted: 02/06/2020] [Indexed: 11/28/2022] Open
Abstract
An antikinetoplastid pharmacomodulation study was conducted at position 6 of the 8-nitroquinolin-2(1H)-one pharmacophore. Fifteen new derivatives were synthesized and evaluated in vitro against L. infantum, T. brucei brucei, and T. cruzi, in parallel with a cytotoxicity assay on the human HepG2 cell line. A potent and selective 6-bromo-substituted antitrypanosomal derivative 12 was revealed, presenting EC50 values of 12 and 500 nM on T. b. brucei trypomastigotes and T. cruzi amastigotes respectively, in comparison with four reference drugs (30 nM ≤ EC50 ≤ 13 μM). Moreover, compound 12 was not genotoxic in the comet assay and showed high in vitro microsomal stability (half life >40 min) as well as favorable pharmacokinetic behavior in the mouse after oral administration. Finally, molecule 12 (E° = -0.37 V/NHE) was shown to be bioactivated by type 1 nitroreductases, in both Leishmania and Trypanosoma, and appears to be a good candidate to search for novel antitrypanosomal lead compounds.
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Affiliation(s)
- Julien Pedron
- LCC-CNRS, Université de Toulouse, CNRS, UPS, 31077 Toulouse, France
| | - Clotilde Boudot
- Université de Limoges, UMR INSERM 1094, Faculté de Pharmacie, 2 rue du Dr Marcland, 87025 Limoges, France
| | - Jean-Yves Brossas
- AP-HP, Groupe Hospitalier Pitié-Salpêtrière, Service de Parasitologie Mycologie, 75013 Paris, France
| | - Emilie Pinault
- Université de Limoges, BISCEm Mass Spectrometry Platform, CBRS, 2 rue du Pr. Descottes, F-87025 Limoges, France
| | | | | | - Elisa Boutet-Robinet
- Toxalim, Université de Toulouse, INRA, ENVT, INP-Purpan, UPS, 31077 Toulouse, France
| | - Alexandre Destere
- Department of Pharmacology, Toxicology and Pharmacovigilance, CHU Limoges, France, INSERM, UMR 1248, University of Limoges, F-87025 Limoges, France
| | - Antoine Tronnet
- LCC-CNRS, Université de Toulouse, CNRS, UPS, 31077 Toulouse, France
| | - Justine Bergé
- LCC-CNRS, Université de Toulouse, CNRS, UPS, 31077 Toulouse, France
| | - Colin Bonduelle
- LCC-CNRS, Université de Toulouse, CNRS, UPS, 31077 Toulouse, France
| | - Céline Deraeve
- LCC-CNRS, Université de Toulouse, CNRS, UPS, 31077 Toulouse, France
| | | | | | - Luc Paris
- AP-HP, Groupe Hospitalier Pitié-Salpêtrière, Service de Parasitologie Mycologie, 75013 Paris, France
| | - Dominique Mazier
- CIMI-Paris, Sorbonne Université, 91 Boulevard de l’Hôpital, 75013 Paris, France
| | - Sophie Corvaisier
- Centre d’Etudes et de Recherche sur le Médicament de Normandie (CERMN), Normandie Université, 14032 Caen, France
| | - Marc Since
- Centre d’Etudes et de Recherche sur le Médicament de Normandie (CERMN), Normandie Université, 14032 Caen, France
| | - Aurélie Malzert-Fréon
- Centre d’Etudes et de Recherche sur le Médicament de Normandie (CERMN), Normandie Université, 14032 Caen, France
| | - Susan Wyllie
- University of Dundee, School of Life Sciences, Division of Biological Chemistry and Drug Discovery, Dow Street, Dundee DD1 5EH, United Kingdom
| | - Rachel Milne
- University of Dundee, School of Life Sciences, Division of Biological Chemistry and Drug Discovery, Dow Street, Dundee DD1 5EH, United Kingdom
| | - Alan H. Fairlamb
- University of Dundee, School of Life Sciences, Division of Biological Chemistry and Drug Discovery, Dow Street, Dundee DD1 5EH, United Kingdom
| | - Alexis Valentin
- UMR 152 PharmaDev, Université de Toulouse, IRD, UPS, 31077 Toulouse, France
| | - Bertrand Courtioux
- Université de Limoges, UMR INSERM 1094, Faculté de Pharmacie, 2 rue du Dr Marcland, 87025 Limoges, France
| | - Pierre Verhaeghe
- LCC-CNRS, Université de Toulouse, CNRS, UPS, 31077 Toulouse, France
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3
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Xu X, Chen Y, Fu Q, Ni D, Zhang J, Li X, Lu S. The chemical diversity and structure-based discovery of allosteric modulators for the PIF-pocket of protein kinase PDK1. J Enzyme Inhib Med Chem 2019; 34:361-374. [PMID: 30734603 PMCID: PMC6327997 DOI: 10.1080/14756366.2018.1553167] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2018] [Revised: 11/18/2018] [Accepted: 11/19/2018] [Indexed: 01/06/2023] Open
Abstract
Phosphoinositide-dependent protein kinase-1 (PDK1) is an important protein in mediating the PI3K-AKT pathway and is thus identified as a promising target. The catalytic activity of PDK1 is tightly regulated by allosteric modulators, which bind to the PDK1 Interacting Fragment (PIF) pocket of the kinase domain that is topographically distinct from the orthosteric, ATP binding site. Allosteric modulators by attaching to the less conserved PIF-pocket have remarkable advantages such as higher selectivity, less side effect, and lower toxicity. Targeting allosteric PIF-pocket of PDK1 has become the focus of recent attention. In this review, we summarise the current advances in the structure-based discovery of PDK1 allosteric modulators. We will first present the three-dimensional structure of PDK1 and illustrate the allosteric regulatory mechanism of PDK1 through the modulation of the PIF-pocket. Then, the recent advances of PDK1 allosteric modulators targeting the PIF-pocket will be recapitulated detailly according to the structural similarity of allosteric modulators.
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Affiliation(s)
- Xinyuan Xu
- Department of Pathophysiology, Key Laboratory of Cell Differentiation and Apoptosis of Chinese Ministry of Education, Shanghai Jiao Tong University, School of Medicine, Shanghai, China
| | - Yingyi Chen
- Department of Pathophysiology, Key Laboratory of Cell Differentiation and Apoptosis of Chinese Ministry of Education, Shanghai Jiao Tong University, School of Medicine, Shanghai, China
| | - Qiang Fu
- Department of Orthopedics, Shanghai General Hospital, Shanghai Jiao Tong University, School of Medicine, Shanghai, China
| | - Duan Ni
- Department of Pathophysiology, Key Laboratory of Cell Differentiation and Apoptosis of Chinese Ministry of Education, Shanghai Jiao Tong University, School of Medicine, Shanghai, China
| | - Jian Zhang
- Department of Pathophysiology, Key Laboratory of Cell Differentiation and Apoptosis of Chinese Ministry of Education, Shanghai Jiao Tong University, School of Medicine, Shanghai, China
| | - Xiaolong Li
- Department of Orthopedics, Changhai Hospital, Naval Military Medical University, Shanghai, China
| | - Shaoyong Lu
- Department of Pathophysiology, Key Laboratory of Cell Differentiation and Apoptosis of Chinese Ministry of Education, Shanghai Jiao Tong University, School of Medicine, Shanghai, China
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A comprehensive study on crystal structure of a novel sulfonamide-dihydroquinolinone through experimental and theoretical approaches. J Mol Model 2019; 25:205. [PMID: 31256254 DOI: 10.1007/s00894-019-4091-7] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2019] [Accepted: 06/04/2019] [Indexed: 10/26/2022]
Abstract
Quinolinones and sulfonamides are moieties with biological potential that can be linked to form new hybrid compounds with improved potential. However, there are few hybrids of these molecules reported. In this sense, this work presents a structural description of a new sulfonamide-dihydroquinolinone (E)-2-(2-methoxyphenyl)-3-(3-nitrobenzylidene)-1-(phenylsulfonyl)-2,3 dihydroquinolin-4(1H)-one (DHQ). The molecular structure of DHQ was elucidated by X-ray diffraction, nuclear magnetic resonance and infrared spectroscopy, and both molecular packing and intermolecular interactions were analyzed by Hirshfeld surfaces and fingerprint maps. In addition, theoretical calculations on frontier orbitals, molecular electrostatic potential maps, and assignments were performed. The crystal packing of DHQ was found to be stabilized by a dimer through a weak C-H⋯O interaction along the c axis. Moreover, the structure is stabilized mainly by C-H⋯O and C-H⋯π interactions, since the interaction C25-H25⋯π contributes to a chain formation. The Hirshfeld normalized surface shows that the closest interactions are around the atoms linked to the dimer formation. The calculations indicate that DHQ possesses electrophilic sites near O atoms and depleted electrons around the H atoms. There is a band GAP of 3.29 eV between its frontier orbitals, which indicates that DHQ is more reactive than other analogues published.
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Vennila K, Sunny D, Madhuri S, Ciattini S, Chelazzi L, Elango KP. Design, synthesis, crystal structures and anticancer activity of 4-substituted quinolines to target PDK1. Bioorg Chem 2018; 81:184-190. [DOI: 10.1016/j.bioorg.2018.08.007] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2018] [Revised: 07/31/2018] [Accepted: 08/06/2018] [Indexed: 12/11/2022]
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6
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Pedron J, Boudot C, Bourgeade-Delmas S, Sournia-Saquet A, Paloque L, Rastegari M, Abdoulaye M, El-Kashef H, Bonduelle C, Pratviel G, Wyllie S, Fairlamb A, Courtioux B, Verhaeghe P, Valentin A. Antitrypanosomatid Pharmacomodulation at Position 3 of the 8-Nitroquinolin-2(1H)-one Scaffold Using Palladium-Catalysed Cross-Coupling Reactions. ChemMedChem 2018; 13:2217-2228. [PMID: 30221468 PMCID: PMC7089779 DOI: 10.1002/cmdc.201800456] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2018] [Revised: 08/29/2018] [Indexed: 01/30/2023]
Abstract
An antikinetoplastid pharmacomodulation study at position 3 of the recently described hit molecule 3-bromo-8-nitroquinolin-2(1H)-one was conducted. Twenty-four derivatives were synthesised using the Suzuki-Miyaura cross-coupling reaction and evaluated in vitro on both Leishmania infantum axenic amastigotes and Trypanosoma brucei brucei trypomastigotes. Introduction of a para-carboxyphenyl group at position 3 of the scaffold led to the selective antitrypanosomal hit molecule 3-(4-carboxyphenyl)-8-nitroquinolin-2(1H)-one (21) with a lower reduction potential (-0.56 V) than the initial hit (-0.45 V). Compound 21 displays micromolar antitrypanosomal activity (IC50 =1.5 μm) and low cytotoxicity on the human HepG2 cell line (CC50 =120 μm), having a higher selectivity index (SI=80) than the reference drug eflornithine. Contrary to results previously obtained in this series, hit compound 21 is inactive toward L. infantum and is not efficiently bioactivated by T. brucei brucei type I nitroreductase, which suggests the existence of an alternative mechanism of action.
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Affiliation(s)
- Julien Pedron
- LCC-CNRS, Université de Toulouse, CNRS, UPS, 205 route de Narbonne, 31077 Toulouse, France
| | - Clotilde Boudot
- Université de Limoges, UMR INSERM 1094, Neuroépidémiologie Tropicale, Faculté de Pharmacie, 2 rue du Dr Marcland, 87025 Limoges, France
| | - Sandra Bourgeade-Delmas
- UMR 152 PharmaDev, Université de Toulouse, IRD, UPS, 35 Chemin des Maraîchers, 31400 Toulouse, France
| | - Alix Sournia-Saquet
- LCC-CNRS, Université de Toulouse, CNRS, UPS, 205 route de Narbonne, 31077 Toulouse, France
| | - Lucie Paloque
- LCC-CNRS, Université de Toulouse, CNRS, UPS, 205 route de Narbonne, 31077 Toulouse, France
| | - Maryam Rastegari
- LCC-CNRS, Université de Toulouse, CNRS, UPS, 205 route de Narbonne, 31077 Toulouse, France
| | - Mansour Abdoulaye
- LCC-CNRS, Université de Toulouse, CNRS, UPS, 205 route de Narbonne, 31077 Toulouse, France
| | - Hussein El-Kashef
- Assiut University, Faculty of Science, Department of Chemistry, 71516 Assiut, Egypt
| | - Colin Bonduelle
- LCC-CNRS, Université de Toulouse, CNRS, UPS, 205 route de Narbonne, 31077 Toulouse, France
| | - Geneviève Pratviel
- LCC-CNRS, Université de Toulouse, CNRS, UPS, 205 route de Narbonne, 31077 Toulouse, France
| | - Susan Wyllie
- University of Dundee, School of Life Sciences, Division of Biological Chemistry and Drug Discovery, Dow Street, Dundee DD1 5EH, Scotland, United Kingdom
| | - Alan Fairlamb
- University of Dundee, School of Life Sciences, Division of Biological Chemistry and Drug Discovery, Dow Street, Dundee DD1 5EH, Scotland, United Kingdom
| | - Bertrand Courtioux
- Université de Limoges, UMR INSERM 1094, Neuroépidémiologie Tropicale, Faculté de Pharmacie, 2 rue du Dr Marcland, 87025 Limoges, France
| | - Pierre Verhaeghe
- LCC-CNRS, Université de Toulouse, CNRS, UPS, 205 route de Narbonne, 31077 Toulouse, France
| | - Alexis Valentin
- UMR 152 PharmaDev, Université de Toulouse, IRD, UPS, 35 Chemin des Maraîchers, 31400 Toulouse, France
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Chuang TH, Chuang CP. Organic amine-mediated free-radical carbocyclization reactions of 2,2,2-trihalogeno-substituted N-(2-alkynylphenyl)acetamides. Org Biomol Chem 2018; 16:7265-7273. [PMID: 30259031 DOI: 10.1039/c8ob01870g] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
An efficient method for the synthesis of 3-halogeno-substituted 4-benzoylquinolin-2-(1H)-ones from N-(2-alkynylphenyl)-substituted trihaloacetamides has been developed, in which organic amines (TNPA and DIEA) act as the electron donors. In this carbocyclization reaction, a new C-C bond formation occurred regioselectively via a 6-exo-dig radical cyclization. A variety of useful functional groups are compatible with the reaction conditions. In this process, readily removable organic amines were employed and no heavy metal catalysts were required.
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Affiliation(s)
- Tsung-Han Chuang
- Department of Chemistry, National Cheng Kung University, Tainan, Taiwan 70101, Republic of China.
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8
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Pedron J, Boudot C, Hutter S, Bourgeade-Delmas S, Stigliani JL, Sournia-Saquet A, Moreau A, Boutet-Robinet E, Paloque L, Mothes E, Laget M, Vendier L, Pratviel G, Wyllie S, Fairlamb A, Azas N, Courtioux B, Valentin A, Verhaeghe P. Novel 8-nitroquinolin-2(1H)-ones as NTR-bioactivated antikinetoplastid molecules: Synthesis, electrochemical and SAR study. Eur J Med Chem 2018; 155:135-152. [PMID: 29885575 DOI: 10.1016/j.ejmech.2018.06.001] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2018] [Revised: 05/31/2018] [Accepted: 06/01/2018] [Indexed: 10/14/2022]
Abstract
To study the antiparasitic 8-nitroquinolin-2(1H)-one pharmacophore, a series of 31 derivatives was synthesized in 1-5 steps and evaluated in vitro against both Leishmania infantum and Trypanosoma brucei brucei. In parallel, the reduction potential of all molecules was measured by cyclic voltammetry. Structure-activity relationships first indicated that antileishmanial activity depends on an intramolecular hydrogen bond (described by X-ray diffraction) between the lactam function and the nitro group, which is responsible for an important shift of the redox potential (+0.3 V in comparison with 8-nitroquinoline). With the assistance of computational chemistry, a set of derivatives presenting a large range of redox potentials (from -1.1 to -0.45 V) was designed and provided a list of suitable molecules to be synthesized and tested. This approach highlighted that, in this series, only substrates with a redox potential above -0.6 V display activity toward L. infantum. Nevertheless, such relation between redox potentials and in vitro antiparasitic activities was not observed in T. b. brucei. Compound 22 is a new hit compound in the series, displaying both antileishmanial and antitrypanosomal activity along with a low cytotoxicity on the human HepG2 cell line. Compound 22 is selectively bioactivated by the type 1 nitroreductases (NTR1) of L. donovani and T. brucei brucei. Moreover, despite being mutagenic in the Ames test, as most of nitroaromatic derivatives, compound 22 was not genotoxic in the comet assay. Preliminary in vitro pharmacokinetic parameters were finally determined and pointed out a good in vitro microsomal stability (half-life > 40 min) and a 92% binding to human albumin.
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Affiliation(s)
- Julien Pedron
- LCC-CNRS Université de Toulouse, CNRS, UPS, Toulouse, France
| | - Clotilde Boudot
- Université de Limoges, UMR INSERM 1094, Neuroépidémiologie Tropicale, Faculté de Pharmacie, 2 rue du Dr Marcland, 87025, Limoges, France
| | - Sébastien Hutter
- IHU Méditerranée Infection, équipe VITROME « Vecteurs, Infections Tropicales et Méditerranéennes, 19-21 boulevard Jean Moulin, 13385, Marseille Cedex 05, France
| | | | | | | | - Alain Moreau
- LCC-CNRS Université de Toulouse, CNRS, UPS, Toulouse, France
| | - Elisa Boutet-Robinet
- Toxalim (Research Centre in Food Toxicology), Université de Toulouse, INRA, ENVT, INP-Purpan, UPS, Toulouse, France
| | - Lucie Paloque
- LCC-CNRS Université de Toulouse, CNRS, UPS, Toulouse, France
| | | | - Michèle Laget
- UMR MD1, U1261, AMU, INSERM, SSA, IRBA, MCT, Marseille, France
| | - Laure Vendier
- LCC-CNRS Université de Toulouse, CNRS, UPS, Toulouse, France
| | | | - Susan Wyllie
- University of Dundee, School of Life Sciences, Division of Biological Chemistry and Drug Discovery, Dow Street, Dundee, DD1 5EH, Scotland, United Kingdom
| | - Alan Fairlamb
- University of Dundee, School of Life Sciences, Division of Biological Chemistry and Drug Discovery, Dow Street, Dundee, DD1 5EH, Scotland, United Kingdom
| | - Nadine Azas
- IHU Méditerranée Infection, équipe VITROME « Vecteurs, Infections Tropicales et Méditerranéennes, 19-21 boulevard Jean Moulin, 13385, Marseille Cedex 05, France
| | - Bertrand Courtioux
- Université de Limoges, UMR INSERM 1094, Neuroépidémiologie Tropicale, Faculté de Pharmacie, 2 rue du Dr Marcland, 87025, Limoges, France
| | - Alexis Valentin
- UMR 152 PharmaDev, Université de Toulouse, IRD, UPS, Toulouse, France
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9
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Application of the Morita-Baylis-Hillman reaction in the synthesis of 3-[( N -cycloalkylbenzamido)methyl]-2-quinolones as potential HIV-1 integrase inhibitors. Bioorg Chem 2017; 75:310-316. [DOI: 10.1016/j.bioorg.2017.09.015] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2017] [Revised: 09/19/2017] [Accepted: 09/20/2017] [Indexed: 11/18/2022]
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10
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Zhang X, Liu H, Jia Y. A palladium-catalyzed intramolecular carbonylative annulation reaction for the synthesis of 4,5-fused tricyclic 2-quinolones. Chem Commun (Camb) 2016; 52:7665-7. [DOI: 10.1039/c6cc02600a] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
A new method for the synthesis of 4,5-fused tricyclic 2-quinolones via a palladium-catalyzed intramolecular carbonylative annulation reaction is described.
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Affiliation(s)
- Xiwu Zhang
- State Key Laboratory of Natural and Biomimetic Drugs
- School of Pharmaceutical Sciences
- Peking University
- Beijing 100191
- China
| | - Haichao Liu
- State Key Laboratory of Natural and Biomimetic Drugs
- School of Pharmaceutical Sciences
- Peking University
- Beijing 100191
- China
| | - Yanxing Jia
- State Key Laboratory of Natural and Biomimetic Drugs
- School of Pharmaceutical Sciences
- Peking University
- Beijing 100191
- China
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11
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OMAR WALAAAE, HORMI OSMOEO. Synthesis of Novel 5-(N-Substituted-Anilino)-8-Hydroxyquinolines via Hartwig-Buchwald Amination Reaction. J CHEM SCI 2015. [DOI: 10.1007/s12039-015-0960-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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12
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Tashima T. The structural use of carbostyril in physiologically active substances. Bioorg Med Chem Lett 2015; 25:3415-9. [PMID: 26112444 DOI: 10.1016/j.bmcl.2015.06.027] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2015] [Revised: 06/04/2015] [Accepted: 06/06/2015] [Indexed: 11/16/2022]
Abstract
Carbostyril (2-quinolinone, 2-quinolone) is an important structural component frequently used in natural products and in physiologically active substances including drugs. It is a 2-ring condensed heterocyclic compound containing several positions that can be replaced by arbitrary substituent groups and is used as a chemical building block, scaffold, fragment, and pharmacophore in drug design or discovery. Since the number of compounds that can be designed using carbostyril is exceedingly large, the steric structures of carbostyril derivatives can be adjusted to the unique, spatially oriented shape of, for example, the active sites of pharmaceutical target molecules. Moreover, the internal amide of the carbostyril unit exhibits distinctive features because of the fixed cis form of the lactam amide group. Because carbostyril has been used as a component in drugs and other bioactive compounds over time, carbostyril derivatives may improve absorption, distribution, metabolism, excretion, and toxicity (ADMET). Therefore, carbostyril derivatives have enormous potential. In this review, the potential and advantages of the use of carbostyril and its related molecular skeletons, such as 3,4-dihydrocarbostyril, are discussed by focusing on the physiologically active substances in which they are incorporated.
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Affiliation(s)
- Toshihiko Tashima
- Nippon Pharmaceutical Chemicals Co., Ltd, 2-8-18 Chodo, Higashi-Osaka, Osaka 577-0056, Japan.
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13
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Efficient one-pot synthesis of 3,7-disubstituted 1,6-naphthyridin-2(1H)-ones through regioselective palladium-catalyzed cross-coupling and SNAr reactions. Tetrahedron 2015. [DOI: 10.1016/j.tet.2015.03.110] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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