1
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Mohamed MA, Abouzied AS, Reyad A, Sayed Abdelsalam Zaki ME, Abdelgawad FE, Al-Humaidi JY, Gomha SM. Novel terpyridines as Staphylococcus aureus gyrase inhibitors: efficient synthesis and antibacterial assessment via solvent-drop grinding. Future Med Chem 2024; 16:205-220. [PMID: 38230640 DOI: 10.4155/fmc-2023-0278] [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: 09/24/2023] [Accepted: 11/28/2023] [Indexed: 01/18/2024] Open
Abstract
Aim: This study was designed to synthesize a novel series of terpyridines with potential antibacterial properties, targeting multidrug resistance. Materials & methods: Terpyridines (4a-h and 6a-c) were synthesized via a one-pot multicomponent reaction using 2,6-diacetylpyridines, benzaldehyde derivatives and malononitrile or ethyl 2-cyanoacetate. The reactions, conducted under grinding conditions with glacial acetic acid, produced high-yield compounds, confirmed by spectroscopic data. Results: The synthesized terpyridines exhibited potent antibacterial activity. Notably, compounds 4d and 4h demonstrated significant inhibition zones against Staphylococcus aureus and Bacillus subtilis, outperforming ciprofloxacin. Conclusion: Molecular docking studies highlighted compounds 4d, 4h and 6c as having strong binding affinity to DNA gyrase B, correlating with their robust antibacterial activity, suggesting their potential as effective agents against multidrug-resistant bacterial strains.
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Affiliation(s)
- Mahmoud Abdalla Mohamed
- Technology of Textile Department, Faculty of Technology and Education, Beni-Suef University, Beni-Suef, Egypt
- Chemistry Department, Faculty of Science and Humanity study, Afif, Shaqra University, Saudi Arabia
| | - Amr Salah Abouzied
- Department of Pharmaceutical Chemistry, College of Pharmacy, University of Hail, Hail, 81442, Saudi Arabia
- Department of Pharmaceutical Chemistry, National Organization for Drug Control & Research, Giza, 12311, Egypt
| | - Amany Reyad
- Botany Department, Faculty of Science, Fayoum University, Fayoum, 63514, Egypt
| | | | - Fathy Elsayed Abdelgawad
- Department of Chemistry, Faculty of Science, Islamic University of Madinah, Madinah 42351, Saudi Arabia
| | - Jehan Yahya Al-Humaidi
- Department of Chemistry, College of Science, Princess Nourah bint Abdulrahman University, P.O. BOX 84428, Riyadh 11671, Saudi Arabia
| | - Sobhi Mohamed Gomha
- Department of Chemistry, Faculty of Science, Islamic University of Madinah, Madinah 42351, Saudi Arabia
- Department of Chemistry, Faculty of Science, Cairo University, Giza, 12613, Egypt
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2
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Tkadlecová M, Lemrová B, Soural M. Synthesis of Polysubstituted Pyridines and Pyrazines via Truce-Smiles Rearrangement of Amino Acid-Based 4-Nitrobenzenesulfonamides. J Org Chem 2023; 88:3228-3237. [PMID: 36797215 PMCID: PMC10017029 DOI: 10.1021/acs.joc.2c03025] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/18/2023]
Abstract
Immobilized l-glutamic acid β-methyl ester was sulfonylated with 4-nitrobenzenesulfonyl chloride and alkylated with various α-haloketones. The resulting sulfonamides were reacted with potassium trimethylsilanolate. Then, upon cleavage from the polymer support, tetrasubstituted pyridines were produced as the result of one-step C-arylation, aldol condensation, and oxidation. When cleavage from the resin occurred before the trimethylsilanolate treatment, C-arylation was followed by enamination, which yielded trisubstituted pyrazines. Through the developed protocols, targeted synthesis of novel heterocyclic derivatives was performed using mild reaction conditions and a number of readily available starting materials.
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Affiliation(s)
- Michaela Tkadlecová
- Department of Organic Chemistry, Faculty of Science, Palacký University, 17. listopadu 12, 771 46 Olomouc, Czech Republic
| | - Barbora Lemrová
- Department of Organic Chemistry, Faculty of Science, Palacký University, 17. listopadu 12, 771 46 Olomouc, Czech Republic
| | - Miroslav Soural
- Department of Organic Chemistry, Faculty of Science, Palacký University, 17. listopadu 12, 771 46 Olomouc, Czech Republic
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3
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Das S, Paul S, Mitra B, Pariyar GC, Ghosh P. PEG-200: A versatile green solvent assisted catalyst-free one-pot three-component synthesis of functionalised N-amino-3-cyano-2-pyridone. RESULTS IN CHEMISTRY 2023. [DOI: 10.1016/j.rechem.2023.100871] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/02/2023] Open
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4
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Novel Set of Highly Substituted Bis-pyridines: Synthesis, Molecular Docking and Drug-Resistant Antibacterial Profile. Future Med Chem 2022; 14:1881-1897. [PMID: 36420816 DOI: 10.4155/fmc-2022-0196] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
Abstract
Aims: Development of antimicrobial agents having the ability to prevent bacterial biofilm formation which causes serious health problems, especially with antibiotic-resistant bacterial strains. Materials and methods: The use of 1,3-diaryl enones as structural motifs to access the pyridine core. Antimicrobial activities of the synthesized compounds against methicillin-susceptible Staphylococcus aureus, methicillin-resistant S. aureus and vancomycin-resistant S. aureus bacterial strains were investigated. Results: The newly synthesized bis-enones were used as building blocks to access some novel highly substituted bis-pyridine derivatives. Several novel bis-compounds showed great bacterial biofilm eradication activity. Conclusion: A new series of bis-chalcones was synthesized and their structural diversity was exploited to access the corresponding, more biologically active, pyridine core. These bis-pyridines showed respectable antibacterial activities against various drug-resistant bacterial strains: namely, methicillin-susceptible, methicillin-resistant and vancomycin-resistant S. aureus.
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5
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Fu H, Rong J, Chen Z, Zhou J, Collier T, Liang SH. Positron Emission Tomography (PET) Imaging Tracers for Serotonin Receptors. J Med Chem 2022; 65:10755-10808. [PMID: 35939391 DOI: 10.1021/acs.jmedchem.2c00633] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Serotonin (5-hydroxytryptamine, 5-HT) and 5-HT receptors (5-HTRs) have crucial roles in various neuropsychiatric disorders and neurodegenerative diseases, making them attractive diagnostic and therapeutic targets. Positron emission tomography (PET) is a noninvasive nuclear molecular imaging technique and is an essential tool in clinical diagnosis and drug discovery. In this context, numerous PET ligands have been developed for "visualizing" 5-HTRs in the brain and translated into human use to study disease mechanisms and/or support drug development. Herein, we present a comprehensive repertoire of 5-HTR PET ligands by focusing on their chemotypes and performance in PET imaging studies. Furthermore, this Perspective summarizes recent 5-HTR-focused drug discovery, including biased agonists and allosteric modulators, which would stimulate the development of more potent and subtype-selective 5-HTR PET ligands and thus further our understanding of 5-HTR biology.
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Affiliation(s)
- Hualong Fu
- Key Laboratory of Radiopharmaceuticals, Ministry of Education, College of Chemistry, Beijing Normal University, Beijing 100875, China
| | - Jian Rong
- Division of Nuclear Medicine and Molecular Imaging, Massachusetts General Hospital, Boston, Massachusetts 02114, United States.,Department of Radiology, Harvard Medical School, Boston, Massachusetts 02115, United States
| | - Zhen Chen
- Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, International Innovation Center for Forest Chemicals and Materials, College of Chemical Engineering, Nanjing Forestry University, Nanjing, Jiangsu 210037, China
| | - Jingyin Zhou
- Key Laboratory of Radiopharmaceuticals, Ministry of Education, College of Chemistry, Beijing Normal University, Beijing 100875, China
| | - Thomas Collier
- Division of Nuclear Medicine and Molecular Imaging, Massachusetts General Hospital, Boston, Massachusetts 02114, United States.,Department of Radiology, Harvard Medical School, Boston, Massachusetts 02115, United States
| | - Steven H Liang
- Division of Nuclear Medicine and Molecular Imaging, Massachusetts General Hospital, Boston, Massachusetts 02114, United States.,Department of Radiology, Harvard Medical School, Boston, Massachusetts 02115, United States
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6
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Han M, Zhang S, Cui X, Wang Q, Li G, Tang Z. Chiral Phosphoric Acid Catalyzed Enantioselective Desymmetrization of 1,4‐Dihydropyridines by C(sp
3
)−H Bromination. Angew Chem Int Ed Engl 2022; 61:e202201418. [DOI: 10.1002/anie.202201418] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2022] [Indexed: 11/11/2022]
Affiliation(s)
- Min Han
- Natural Products Research Center Chengdu Institution of Biology Chinese Academy of Science Chengdu Sichuan 610041 China
- Chengdu Institute of Organic Chemistry Chinese Academy of Sciences Chengdu Sichuan 610041 China
| | - Shi‐qi Zhang
- Natural Products Research Center Chengdu Institution of Biology Chinese Academy of Science Chengdu Sichuan 610041 China
| | - Xin Cui
- Natural Products Research Center Chengdu Institution of Biology Chinese Academy of Science Chengdu Sichuan 610041 China
| | - Qi‐wei Wang
- Chengdu Institute of Organic Chemistry Chinese Academy of Sciences Chengdu Sichuan 610041 China
- Department of Chemistry Xihua University Chengdu 610039 P. R. China
| | - Guang‐xun Li
- Natural Products Research Center Chengdu Institution of Biology Chinese Academy of Science Chengdu Sichuan 610041 China
| | - Zhuo Tang
- Natural Products Research Center Chengdu Institution of Biology Chinese Academy of Science Chengdu Sichuan 610041 China
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7
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Mangeant R, Dubost E, Cailly T, Collot V. Radiotracers for the Central Serotoninergic System. Pharmaceuticals (Basel) 2022; 15:ph15050571. [PMID: 35631397 PMCID: PMC9143978 DOI: 10.3390/ph15050571] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2022] [Revised: 04/27/2022] [Accepted: 04/28/2022] [Indexed: 12/10/2022] Open
Abstract
This review lists the most important radiotracers described so far for imaging the central serotoninergic system. Single-photon emission computed tomography and positron emission tomography radiotracers are reviewed and critically discussed for each receptor.
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Affiliation(s)
- Reynald Mangeant
- Centre d’Etudes et de Recherche sur le Médicament de Normandie (CERMN), UNICAEN, Normandie Univ., 14000 Caen, France; (R.M.); (E.D.)
- Institut Blood and Brain @ Caen Normandie (BB@C), Boulevard Henri Becquerel, 14000 Caen, France
| | - Emmanuelle Dubost
- Centre d’Etudes et de Recherche sur le Médicament de Normandie (CERMN), UNICAEN, Normandie Univ., 14000 Caen, France; (R.M.); (E.D.)
- Institut Blood and Brain @ Caen Normandie (BB@C), Boulevard Henri Becquerel, 14000 Caen, France
| | - Thomas Cailly
- Centre d’Etudes et de Recherche sur le Médicament de Normandie (CERMN), UNICAEN, Normandie Univ., 14000 Caen, France; (R.M.); (E.D.)
- Institut Blood and Brain @ Caen Normandie (BB@C), Boulevard Henri Becquerel, 14000 Caen, France
- UNICAEN, IMOGERE, Normandie Univ., 14000 Caen, France
- CHU Côte de Nacre, Department of Nuclear Medicine, 14000 Caen, France
- Correspondence: (T.C.); (V.C.)
| | - Valérie Collot
- Centre d’Etudes et de Recherche sur le Médicament de Normandie (CERMN), UNICAEN, Normandie Univ., 14000 Caen, France; (R.M.); (E.D.)
- Institut Blood and Brain @ Caen Normandie (BB@C), Boulevard Henri Becquerel, 14000 Caen, France
- Correspondence: (T.C.); (V.C.)
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8
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Han M, Zhang SQ, Cui X, Wang QW, Li G, Tang Z. Chiral Phosphoric Acid Catalyzed Enantioselective Desymmetrization of 1,4‐Dihydropyridines by C(sp3)–H Bromination. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202201418] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Min Han
- Chengdu Institute of Biology natural products reserch center CHINA
| | - Shi-qi Zhang
- Chengdu Institute of Biology natural products reserch center CHINA
| | - Xin Cui
- Chengdu Institute of Biology natural products reserch center CHINA
| | - Qi-wei Wang
- Chengdu Organic Chemistry Co Ltd: Chengdu Organic Chemicals Co Ltd natural products reserch center CHINA
| | - guangxun Li
- Chengdu institute of biology, Chinese academy of sciences Natural products research center Renming Road south, Block 4, NO 9 610041 Chengdu CHINA
| | - Zhuo Tang
- Chengdu Institute of Biology natural products reserch center CHINA
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9
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He D, Wang B, Duan K, Zhou Y, Li M, Jiang H, Wu W. Synthesis of Densely Substituted Pyridine Derivatives from 1-Methyl-1,3-(ar)enynes and Nitriles by a Formal [4+2] Cycloaddition Reaction. Org Lett 2022; 24:1292-1297. [PMID: 35112870 DOI: 10.1021/acs.orglett.1c04192] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
An attractive method for assembling densely substituted pyridine derivatives from 1-methyl-1,3-(ar)enynes and nitriles via a formal [4+2] cycloaddition has been established. The well-balanced affinities of two alkali metal salts enable C(sp3)-H bond activation and excellent chemo- and regioselectivities. Experimental studies revealed that nitrile functions only as a partial nitrogen source for pyridine synthesis, and the addition of a metalated imine intermediate to an intramolecular alkyne is the rate-limiting step.
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Affiliation(s)
- Dandan He
- School of Chemistry and Chemical Engineering, State Key Laboratory of Luminescent Materials and Devices, South China University of Technology, Guangzhou 510641, P. R. China
| | - Bowen Wang
- School of Chemistry and Chemical Engineering, State Key Laboratory of Luminescent Materials and Devices, South China University of Technology, Guangzhou 510641, P. R. China
| | - Kanghui Duan
- School of Chemistry and Chemical Engineering, State Key Laboratory of Luminescent Materials and Devices, South China University of Technology, Guangzhou 510641, P. R. China
| | - Yang Zhou
- School of Chemistry and Chemical Engineering, State Key Laboratory of Luminescent Materials and Devices, South China University of Technology, Guangzhou 510641, P. R. China
| | - Meng Li
- School of Chemistry and Chemical Engineering, State Key Laboratory of Luminescent Materials and Devices, South China University of Technology, Guangzhou 510641, P. R. China
| | - Huanfeng Jiang
- School of Chemistry and Chemical Engineering, State Key Laboratory of Luminescent Materials and Devices, South China University of Technology, Guangzhou 510641, P. R. China
| | - Wanqing Wu
- School of Chemistry and Chemical Engineering, State Key Laboratory of Luminescent Materials and Devices, South China University of Technology, Guangzhou 510641, P. R. China
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10
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Enamines and their variants as intermediates for synthesis of aza-heterocycles with applications in MCRs. Tetrahedron 2022. [DOI: 10.1016/j.tet.2021.132545] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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11
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Synthesis, characterization, and photophysical properties of some new thieno[2,3‐
b
]pyridines bearing phenylethenyl moiety. J Heterocycl Chem 2021. [DOI: 10.1002/jhet.4391] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
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12
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Torabi M, Zolfigol MA, Yarie M, Gu Y. Application of ammonium acetate as a dual rule reagent-catalyst in synthesis of new symmetrical terpyridines. MOLECULAR CATALYSIS 2021. [DOI: 10.1016/j.mcat.2021.111959] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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13
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Xiong Z, Duan J, Li X, Wang X, Addepalli Y, Lu M, Yao W, He L, Wang Z. Palladium-Catalyzed Selective [2 + 2 + 2] Annulation of 2-(2-Enynyl)pyridines with Arynes. J Org Chem 2021; 86:12403-12411. [PMID: 34379414 DOI: 10.1021/acs.joc.1c01393] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The palladium-catalyzed chemo- and stereoselective [2 + 2 + 2] annulation reaction of 2-(2-enynyl)pyridines with arynes has been developed. A wide range of (E)- or (E/Z)-isomers of 2-(2-enynyl)pyridines and arynes was tolerated, providing a spectrum of (E)-phenanthrenylated 2-alkenylpyridines in good yield, together with the generation of a chiral axis between an alkene and a phenanthrene ring.
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Affiliation(s)
- Zongli Xiong
- School of Pharmaceutical Sciences and Chongqing Key Laboratory of Natural Drug Research, Chongqing University, Chongqing 401331, P.R. China
| | - Jingxiang Duan
- School of Pharmaceutical Sciences and Chongqing Key Laboratory of Natural Drug Research, Chongqing University, Chongqing 401331, P.R. China
| | - Xiaoyi Li
- School of Pharmaceutical Sciences and Chongqing Key Laboratory of Natural Drug Research, Chongqing University, Chongqing 401331, P.R. China
| | - Xin Wang
- School of Pharmaceutical Sciences and Chongqing Key Laboratory of Natural Drug Research, Chongqing University, Chongqing 401331, P.R. China
| | - Yesu Addepalli
- School of Pharmaceutical Sciences and Chongqing Key Laboratory of Natural Drug Research, Chongqing University, Chongqing 401331, P.R. China
| | - Mengxue Lu
- School of Pharmaceutical Sciences and Chongqing Key Laboratory of Natural Drug Research, Chongqing University, Chongqing 401331, P.R. China
| | - Weijun Yao
- Department of Chemistry, Zhejiang Sci-Tech University, Hangzhou 310018, P.R. China
| | - Ling He
- School of Pharmaceutical Sciences and Chongqing Key Laboratory of Natural Drug Research, Chongqing University, Chongqing 401331, P.R. China
| | - Zhen Wang
- School of Pharmaceutical Sciences and Chongqing Key Laboratory of Natural Drug Research, Chongqing University, Chongqing 401331, P.R. China
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14
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Newman-Tancredi A, Depoortère RY, Kleven MS, Kołaczkowski M, Zimmer L. Translating biased agonists from molecules to medications: Serotonin 5-HT 1A receptor functional selectivity for CNS disorders. Pharmacol Ther 2021; 229:107937. [PMID: 34174274 DOI: 10.1016/j.pharmthera.2021.107937] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2021] [Revised: 06/01/2021] [Accepted: 06/17/2021] [Indexed: 12/18/2022]
Abstract
Biased agonism (or "functional selectivity") at G-protein-coupled receptors has attracted rapidly increasing interest as a means to improve discovery of more efficacious and safer pharmacotherapeutics. However, most studies are limited to in vitro tests of cellular signaling and few biased agonists have progressed to in vivo testing. As concerns 5-HT1A receptors, which exert a major control of serotonergic signaling in diverse CNS regions, study of biased agonism has previously been limited by the poor target selectivity and/or partial agonism of classically available ligands. However, a new generation of highly selective, efficacious and druggable agonists has advanced the study of biased agonism at this receptor and created new therapeutic opportunities. These novel agonists show differential properties for G-protein signaling, cellular signaling (particularly pERK), electrophysiological effects, neurotransmitter release, neuroimaging by PET and pharmacoMRI, and behavioral tests of mood, motor activity and side effects. Overall, NLX-101 (a.k.a. F15599) exhibits preferential activation of cortical and brain stem 5-HT1A receptors, whereas NLX-112 (a.k.a. befiradol or F13640) shows prominent activation of 5-HT1A autoreceptors in Raphe nuclei and in regions associated with motor control. Accordingly, NLX-101 is potently active in rodent models of depression and respiratory control, whereas NLX-112 shows promising activity in models of Parkinson's disease across several species - rat, marmoset and macaque. Moreover, NLX-112 has also been labeled with 18F to produce the first agonist PET radiopharmaceutical (known as [18F]-F13640) for investigation of the active state of 5-HT1A receptors in rodent, primate and human. The structure-functional activity relationships of biased agonists have been investigated by receptor modeling and novel compounds have been identified which exhibit increased affinity at 5-HT1A receptors and new profiles of cellular signaling bias, notably for β-arrestin recruitment versus pERK. Taken together, the data suggest that 5-HT1A receptor biased agonists constitute potentially superior pharmacological agents for treatment of CNS disorders involving serotonergic mechanisms.
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Affiliation(s)
| | | | | | | | - Luc Zimmer
- Université Claude Bernard Lyon1, Lyon, France; Hospices Civils de Lyon, Lyon, France; Lyon Neuroscience Research Center, CNRS-INSERM, France
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15
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Khalil KD, Riyadh SM, Jaremko M, Farghaly TA, Hagar M. Synthesis of Chitosan-La 2O 3 Nanocomposite and Its Utility as a Powerful Catalyst in the Synthesis of Pyridines and Pyrazoles. Molecules 2021; 26:3689. [PMID: 34204215 PMCID: PMC8234470 DOI: 10.3390/molecules26123689] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2021] [Revised: 06/07/2021] [Accepted: 06/08/2021] [Indexed: 12/23/2022] Open
Abstract
Recently, the development of nanocatalysts based on naturally occurring polysaccharides has received a lot of attention. Chitosan (CS), as a biodegradable and biocompatible polysaccharide, is considered to be an excellent template for the design of a hybrid biopolymer-based metal oxide nanocomposite. In this case, lanthanum oxide nanoparticles doped with chitosan at different weight percentages (5, 10, 15, and 20 wt% CS/La2O3) were prepared via a simple solution casting method. The prepared CS/La2O3 nanocomposite solutions were cast in a Petri dish in order to produce the developed catalyst, which was shaped as a thin film. The structural features of the hybrid nanocomposite film were studied by FTIR, SEM, and XRD analytical tools. FTIR spectra confirmed the presence of the major characteristic peaks of chitosan, which were modified by interaction with La2O3 nanoparticles. Additionally, SEM graphs showed dramatic morphological changes on the surface of chitosan, which is attributed to surface adsorption with La2O3 molecules. The prepared CS/La2O3 nanocomposite film (15% by weight) was investigated as an effective, recyclable, and heterogeneous base catalyst in the synthesis of pyridines and pyrazoles. The nanocomposite used was sufficiently stable and was collected and reused more than three times without loss of catalytic activity.
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Affiliation(s)
- Khaled D. Khalil
- Department of Chemistry, Faculty of Science, Cairo University, Giza 12613, Egypt; (S.M.R.); (T.A.F.)
- Department of Chemistry, Faculty of Science, Taibah University, Al-Madinah Almunawarah, Yanbu 46423, Saudi Arabia;
| | - Sayed M. Riyadh
- Department of Chemistry, Faculty of Science, Cairo University, Giza 12613, Egypt; (S.M.R.); (T.A.F.)
- Department of Chemistry, College of Science, Taibah University, Al-Madinah Almunawrah 30002, Saudi Arabia
| | - Mariusz Jaremko
- Biological and Environmental Sciences & Engineering Division (BESE), King Abdullah University of Science and Technology (KAUST), Thuwal 23955-6900, Saudi Arabia;
| | - Thoraya A. Farghaly
- Department of Chemistry, Faculty of Science, Cairo University, Giza 12613, Egypt; (S.M.R.); (T.A.F.)
- Department of Chemistry, Faculty of Applied Science, Umm Al-Qura University, Makkah Almukaramah 21514, Saudi Arabia
| | - Mohamed Hagar
- Department of Chemistry, Faculty of Science, Taibah University, Al-Madinah Almunawarah, Yanbu 46423, Saudi Arabia;
- Chemistry Department, Faculty of Science, Alexandria University, Alexandria 21321, Egypt
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16
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Chheda PR, Kummer DA, Nishimura RT, McClure KJ, Venkatesan H. One-Pot Reductive Alkylation of 2,4-Dihydroxy Quinolines and Pyridines. J Org Chem 2021; 86:7148-7162. [PMID: 33913727 DOI: 10.1021/acs.joc.1c00496] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A one-pot, Hantzsch ester-mediated Knoevenagel condensation-reduction reaction has been developed for alkylation of a wide range of substituted 2,4-quinoline diols and 2,4-pyridine diols with aldehydes. The process is operationally simple to perform, scalable, and provides highly useful C-3 alkylated quinoline and pyridine diols in yields of 58-92%. The alkylation products can be converted to 2,4-dihaloquinoline and pyridine substrates for further functionalization.
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Affiliation(s)
- Pratik R Chheda
- Discovery Chemistry, Janssen Research and Development, 3210 Merryfield Row, San Diego, California 92121, United States
| | - David A Kummer
- Lundbeck La Jolla Research Center, Inc., 10835 Road to the Cure, Suite 250, San Diego, California 92121, United States
| | - Rachel T Nishimura
- Discovery Chemistry, Janssen Research and Development, 3210 Merryfield Row, San Diego, California 92121, United States
| | - Kelly J McClure
- Discovery Chemistry, Janssen Research and Development, 3210 Merryfield Row, San Diego, California 92121, United States
| | - Hariharan Venkatesan
- Discovery Chemistry, Janssen Research and Development, 3210 Merryfield Row, San Diego, California 92121, United States
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17
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Design, synthesis and docking studies of novel thiazole derivatives incorporating pyridine moiety and assessment as antimicrobial agents. Sci Rep 2021; 11:7846. [PMID: 33846389 PMCID: PMC8041837 DOI: 10.1038/s41598-021-86424-7] [Citation(s) in RCA: 29] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2021] [Accepted: 03/15/2021] [Indexed: 02/02/2023] Open
Abstract
A novel series of substituted 4,6-dimethyl-2-oxo-1-(thiazol-2-ylamino)-1,2-dihydropyridine-3-carbonitrile derivatives 6, 9, 13, 15, and 17 was synthesized in a good to excellent yield from the reaction of 1-(3-cyano-4,6-dimethyl-2-oxopyridin-1(2H)-yl)thiourea with 2-oxo-N'-arylpropanehydrazonoyl chloride, chloroacetone, α-bromoketones, ethyl chloroacetate, and 2,3-dichloroquinoxaline, respectively. The potential DNA gyrase inhibitory activity was examined using in silico molecular docking simulation. The novel thiazoles exhibit dock score values between - 6.4 and - 9.2 kcal/mol and they were screened for their antimicrobial activities. Compound 13a shown good antibacterial activities with MIC ranged from 93.7-46.9 μg/mL, in addition, it shown good antifungal activities with MIC ranged from 7.8 and 5.8 μg/mL.
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18
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Chausset-Boissarie L, Le Guen C, Mazzah A, Penhoat M, Melnyk P, Rolando C. Direct and Regioselective C(sp3)–H Bond Fluorination of 2-Alkylazaarenes with Selectfluor. SYNTHESIS-STUTTGART 2021. [DOI: 10.1055/s-0040-1706482] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
AbstractHerein, a regioselective and direct monofluorination strategy of pyridylic and quinolinic C(sp3)–H bonds was developed under transition-metal-free conditions with Selectfluor. The reaction was performed under smooth conditions and afforded fluorinated azaheterocycles including 2-methylpyridines and -quinolines in moderate to good yields.
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Affiliation(s)
| | - Clothilde Le Guen
- USR CNRS 3290, MSAP, Miniaturisation pour la Synthèse, l’Analyse et la Protéomique, Université de Lille
| | - Ahmed Mazzah
- USR CNRS 3290, MSAP, Miniaturisation pour la Synthèse, l’Analyse et la Protéomique, Université de Lille
| | - Maël Penhoat
- USR CNRS 3290, MSAP, Miniaturisation pour la Synthèse, l’Analyse et la Protéomique, Université de Lille
| | - Patricia Melnyk
- Inserm, CHU Lille, U1172-Lille Neuroscience & Cognition, Université de Lille
| | - Christian Rolando
- USR CNRS 3290, MSAP, Miniaturisation pour la Synthèse, l’Analyse et la Protéomique, Université de Lille
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19
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Li X, Liu C, Guo S, Wang W, Zhang Y. PIFA‐Mediated Cross‐Dehydrogenative Coupling of
N
‐Heteroarenes with Cyclic Ethers: Ethanol as an Efficient Promoter. European J Org Chem 2020. [DOI: 10.1002/ejoc.202001354] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Affiliation(s)
- Xiang Li
- State Key Laboratory of Bioengineering Reactor, Shanghai Key Laboratory of New Drug Design School of Pharmacy East China University of Science and Technology Shanghai 200237 P. R. China
| | - Chaoyang Liu
- State Key Laboratory of Bioengineering Reactor, Shanghai Key Laboratory of New Drug Design School of Pharmacy East China University of Science and Technology Shanghai 200237 P. R. China
| | - Shixun Guo
- State Key Laboratory of Bioengineering Reactor, Shanghai Key Laboratory of New Drug Design School of Pharmacy East China University of Science and Technology Shanghai 200237 P. R. China
| | - Wei Wang
- State Key Laboratory of Bioengineering Reactor, Shanghai Key Laboratory of New Drug Design School of Pharmacy East China University of Science and Technology Shanghai 200237 P. R. China
- Department of Pharmacology and Toxicology and BIO5 Institute University of Arizona Tucson AZ 85721-0207 USA
| | - Yongqiang Zhang
- State Key Laboratory of Bioengineering Reactor, Shanghai Key Laboratory of New Drug Design School of Pharmacy East China University of Science and Technology Shanghai 200237 P. R. China
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20
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Kumar P, Kapur M. Unusual Reactivity of 4-Vinyl Isoxazoles in the Copper-Mediated Synthesis of Pyridines, Employing DMSO as a One-Carbon Surrogate. Org Lett 2020; 22:5855-5860. [DOI: 10.1021/acs.orglett.0c01935] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Pravin Kumar
- Department of Chemistry, Indian Institute of Science Education and Research Bhopal, Bhopal Bypass Road, Bhauri, Bhopal 462066, MP, India
| | - Manmohan Kapur
- Department of Chemistry, Indian Institute of Science Education and Research Bhopal, Bhopal Bypass Road, Bhauri, Bhopal 462066, MP, India
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21
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Sniecikowska J, Newman-Tancredi A, Kolaczkowski M. From Receptor Selectivity to Functional Selectivity: The Rise of Biased Agonism in 5-HT1A Receptor Drug Discovery. Curr Top Med Chem 2019; 19:2393-2420. [PMID: 31544717 DOI: 10.2174/1568026619666190911122040] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2019] [Revised: 08/27/2019] [Accepted: 08/28/2019] [Indexed: 02/08/2023]
Abstract
Despite extensive efforts to design serotonin 5-HT1A receptor compounds, there are currently no clinically available selective agonists to explore the therapeutic potential of activating this receptor. Commonly used drugs targeting 5-HT1A receptors, such as buspirone or other azapirone compounds, possess only limited selectivity over cross-reacting sites, act as partial agonists for 5-HT1A receptor activation, and are metabolically labile, generating active metabolites. In addition, drug discovery has been hampered by the multiplicity of 5-HT1A receptor subpopulations, expressed in different brain regions, that are coupled to distinct molecular signaling mechanisms and mediate a wide variety of physiological responses, both desired and undesired. In this context, advances in 5-HT1A receptor drug discovery have attracted attention of novel 'biased agonists' that are selective, efficacious and preferentially target the brain regions that mediate therapeutic activity without triggering side effects. The prototypical first-in-class compound NLX-101 (a.k.a. F15599; 3-chloro-4-fluorophenyl-[4-fluoro-4-[[(5-methylpyrimidin-2-ylmethyl)amino]methyl]piperidin- 1-yl]methanone), preferentially activates 5-HT1A receptors in cortical regions and exhibits potent, rapidacting and sustained antidepressant-like and procognitive properties in animal models. Here the background has been reviewed that led to the discovery of the class of 1-(1-benzoylpiperidin-4- yl)methanamine derivatives, including NLX-101, as well as recent advances in discovery of novel 5-HT1A receptor biased agonists, notably aryloxyethyl derivatives of 1‑(1-benzoylpiperidin-4yl)methanamine which show promising pharmacological activity both in vitro and in vivo. Overall, the results suggest that opportunities exist for innovative drug discovery of selective 5-HT1A receptor biased agonists that may open new avenues for the treatment of CNS disorders involving dysfunction of serotonergic neurotransmission.
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Affiliation(s)
- Joanna Sniecikowska
- Department of Medicinal Chemistry, Faculty of Pharmacy, Jagiellonian University Medical College, Chair of Pharmaceutical Chemistry, 9 Medyczna Street, 30-688 Krakow, Poland
| | | | - Marcin Kolaczkowski
- Department of Medicinal Chemistry, Faculty of Pharmacy, Jagiellonian University Medical College, Chair of Pharmaceutical Chemistry, 9 Medyczna Street, 30-688 Krakow, Poland
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22
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Nassar IF, El-Sayed WA, Ragab TIM, Shalaby ASG, Mehany ABM. Design, Synthesis of New Pyridine and Pyrimidine Sugar Compounds as Antagonists Targeting the ERα via Structure-Based Virtual Screening. Mini Rev Med Chem 2019; 19:395-409. [PMID: 30124151 DOI: 10.2174/1389557518666180820125210] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2018] [Revised: 07/29/2018] [Accepted: 08/03/2018] [Indexed: 11/22/2022]
Abstract
BACKGROUND New aryl substituted cyclohepta[b]pyridine and cyclohepta[d]pyrimidine derivatives were synthesized. The sugar hydrazones of the synthesized pyridine and pyrimidine compounds were also prepared. METHOD In addition, the 1,3,4-oxadiazolyl acyclic C-nucleoside analogs of the pyridine system were prepared. The hemolytic, prebiotic, anticancer and antimicrobial activities of some of the synthesized compounds were also studied. Compounds 10 and 12 showed high activity against MCF-7, HEPG-2 and HCT-116 cell lines with IC50 at range 3.56-8.55 µg/mL. In addition, the synthesized condensed thiopyrimidine derivative 10 exhibited more potent bactericidal activity while compound 7 demonstrated potent antifungal activity against Aspergillus niger. Furthermore, the synthetic compounds of the pyrimidine base promoted the growth of lactic acid bacteria. RESULTS The predicted binding patterns of three of the prepared derivatives as possible antagonists against ERα were investigated which showed good binding patterns.
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Affiliation(s)
- Ibrahim F Nassar
- Faculty of Specific Education, Ain Shams University, Abbassia, Cairo, Egypt
| | - Wael A El-Sayed
- Photochemistry Department, National Research Centre, El-Behouth St, Dokki, Cairo, Egypt
| | - Tamer I M Ragab
- Chemistry of Natural and Microbial Products Department, Pharmaceutical and Drug Industries Research, Division, National Research Centre, Dokki, Cairo, Egypt
| | - Al Shimaa Gamal Shalaby
- Chemistry of Natural and Microbial Products Department, Pharmaceutical and Drug Industries Research, Division, National Research Centre, Dokki, Cairo, Egypt
| | - Ahmed B M Mehany
- Department of Zoology, Faculty of Science Al-Azhar University, Cairo, Egypt
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23
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Sniecikowska J, Gluch-Lutwin M, Bucki A, Więckowska A, Siwek A, Jastrzebska-Wiesek M, Partyka A, Wilczyńska D, Pytka K, Pociecha K, Cios A, Wyska E, Wesołowska A, Pawłowski M, Varney MA, Newman-Tancredi A, Kolaczkowski M. Novel Aryloxyethyl Derivatives of 1-(1-Benzoylpiperidin-4-yl)methanamine as the Extracellular Regulated Kinases 1/2 (ERK1/2) Phosphorylation-Preferring Serotonin 5-HT 1A Receptor-Biased Agonists with Robust Antidepressant-like Activity. J Med Chem 2019; 62:2750-2771. [PMID: 30721053 DOI: 10.1021/acs.jmedchem.9b00062] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Novel 1-(1-benzoylpiperidin-4-yl)methanamine derivatives were designed as "biased agonists" of serotonin 5-HT1A receptors. The compounds were tested in signal transduction assays (ERK1/2 phosphorylation, cAMP inhibition, Ca2+ mobilization, and β-arrestin recruitment) which identified ERK1/2 phosphorylation-preferring aryloxyethyl derivatives. The novel series showed high 5-HT1A receptor affinity, >1000-fold selectivity versus noradrenergic α1, dopamine D2, serotonin 5-HT2A, histamine H1, and muscarinic M1 receptors, and favorable druglike properties (CNS-MPO, Fsp3, LELP). The lead structure, (3-chloro-4-fluorophenyl)(4-fluoro-4-(((2-(pyridin-2-yloxy)ethyl)amino)methyl)piperidin-1-yl)methanone (17, NLX-204), displayed high selectivity in the SafetyScreen44 panel (including hERG channel), high solubility, metabolic stability, and Caco-2 penetration and did not block CYP3A4, CYP2D6 isoenzymes, or P-glycoprotein. Preliminary in vivo studies confirmed its promising pharmacokinetic profile. 17 also robustly stimulated ERK1/2 phosphorylation in rat cortex and showed highly potent (MED = 0.16 mg/kg) and efficacious antidepressant-like activity, totally eliminating immobility in the rat Porsolt test. These data suggest that the present 5-HT1A receptor-biased agonists could constitute promising antidepressant drug candidates.
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Affiliation(s)
- Joanna Sniecikowska
- Faculty of Pharmacy , Jagiellonian University Medical College , 9 Medyczna Street , 30-688 Kraków , Poland
| | - Monika Gluch-Lutwin
- Faculty of Pharmacy , Jagiellonian University Medical College , 9 Medyczna Street , 30-688 Kraków , Poland
| | - Adam Bucki
- Faculty of Pharmacy , Jagiellonian University Medical College , 9 Medyczna Street , 30-688 Kraków , Poland
| | - Anna Więckowska
- Faculty of Pharmacy , Jagiellonian University Medical College , 9 Medyczna Street , 30-688 Kraków , Poland
| | - Agata Siwek
- Faculty of Pharmacy , Jagiellonian University Medical College , 9 Medyczna Street , 30-688 Kraków , Poland
| | | | - Anna Partyka
- Faculty of Pharmacy , Jagiellonian University Medical College , 9 Medyczna Street , 30-688 Kraków , Poland
| | - Daria Wilczyńska
- Faculty of Pharmacy , Jagiellonian University Medical College , 9 Medyczna Street , 30-688 Kraków , Poland
| | - Karolina Pytka
- Faculty of Pharmacy , Jagiellonian University Medical College , 9 Medyczna Street , 30-688 Kraków , Poland
| | - Krzysztof Pociecha
- Faculty of Pharmacy , Jagiellonian University Medical College , 9 Medyczna Street , 30-688 Kraków , Poland
| | - Agnieszka Cios
- Faculty of Pharmacy , Jagiellonian University Medical College , 9 Medyczna Street , 30-688 Kraków , Poland
| | - Elżbieta Wyska
- Faculty of Pharmacy , Jagiellonian University Medical College , 9 Medyczna Street , 30-688 Kraków , Poland
| | - Anna Wesołowska
- Faculty of Pharmacy , Jagiellonian University Medical College , 9 Medyczna Street , 30-688 Kraków , Poland
| | - Maciej Pawłowski
- Faculty of Pharmacy , Jagiellonian University Medical College , 9 Medyczna Street , 30-688 Kraków , Poland
| | - Mark A Varney
- Neurolixis Inc. , 34145 Pacific Coast Highway #504 , Dana Point , 92629 California , United States
| | - Adrian Newman-Tancredi
- Neurolixis Inc. , 34145 Pacific Coast Highway #504 , Dana Point , 92629 California , United States
| | - Marcin Kolaczkowski
- Faculty of Pharmacy , Jagiellonian University Medical College , 9 Medyczna Street , 30-688 Kraków , Poland
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24
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Salim KMM, Shamsiya A, Damodaran B. Green Synthesis of Fluorescent Peptidomimetic Triazoles from Biomass-Derived 5-(Chloromethyl)furfural. ChemistrySelect 2018. [DOI: 10.1002/slct.201802310] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Affiliation(s)
| | - Aranhikkal Shamsiya
- Department of Chemistry; University of Calicut, Malappuram-; 673635 Kerala India
| | - Bahulayan Damodaran
- Department of Chemistry; University of Calicut, Malappuram-; 673635 Kerala India
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25
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Hosseini H, Bayat M. An efficient and ecofriendly synthesis of highly functionalized pyridones via a one-pot three-component reaction. RSC Adv 2018; 8:27131-27143. [PMID: 35559211 PMCID: PMC9092425 DOI: 10.1039/c8ra05690k] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2018] [Accepted: 07/24/2018] [Indexed: 11/21/2022] Open
Abstract
A simple and convenient protocol has been developed for the synthesis of N-amino-3-cyano-2-pyridone derivatives by a one-pot reaction of cyanoacetohydrazide, activated nitrile substrates (malononitrile, ethyl cyanoacetate, cyanoacetamide) and aromatic aldehydes in the presence of piperidine in water or a mixture of water and ethanol. The sequence of cascade reactions includes Knoevenagel condensation, Michael addition, intramolecular cyclization, imine-enamine tautomerization and oxidative aromatization. The main advantages of this procedure are availability of starting compounds, simple procedure, mild conditions, easy purification of products and the use of water or water/ethanol as green solvents.
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Affiliation(s)
- Hajar Hosseini
- Department of Chemistry, Faculty of Science, Imam Khomeini International University Qazvin Iran +98(28)33780040
| | - Mohammad Bayat
- Department of Chemistry, Faculty of Science, Imam Khomeini International University Qazvin Iran +98(28)33780040
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26
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El-Sayed WA, Khalaf HS, Mohamed SF, Hussien HA, Kutkat OM, Amr AE. Synthesis and antiviral activity of 1,2,3-triazole glycosides based substituted pyridine via click cycloaddition. RUSS J GEN CHEM+ 2017. [DOI: 10.1134/s1070363217100279] [Citation(s) in RCA: 42] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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27
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Amer AA, Abdelhamid AA. Microwave-Assisted, One-Pot Multicomponent Synthesis of Some New Cyanopyridines. J Heterocycl Chem 2017. [DOI: 10.1002/jhet.2926] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Amer A. Amer
- Chemistry Department, Faculty of Science; Sohag University; Sohag 82524 Egypt
| | - Antar A. Abdelhamid
- Chemistry Department, Faculty of Science; Sohag University; Sohag 82524 Egypt
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28
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Liu S, Liu A, Zhang Y, Wang W. Direct Cα-heteroarylation of structurally diverse ethers via a mild N-hydroxysuccinimide mediated cross-dehydrogenative coupling reaction. Chem Sci 2017; 8:4044-4050. [PMID: 30155212 PMCID: PMC6094177 DOI: 10.1039/c6sc05697k] [Citation(s) in RCA: 70] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2016] [Accepted: 03/23/2017] [Indexed: 12/15/2022] Open
Abstract
An important challenge in the Cα-heteroarylation of ethers is the requirement of a large excess amount of ethers (that are used as solvents in many cases) to achieve effective transformations. This drawback has significantly restricted the Cα-heteroarylation of ethers to the use of simple and easily accessible ether substrates. To overcome this limitation, a new, efficient, N-hydroxysuccinimide (NHS) mediated, mild and metal-free CDC strategy for the direct Cα-heteroarylation of diverse ethers has been developed. Different to our previous benzaldehyde mediated photoredox Cα-heteroarylation, we have identified NHS as a new and efficient mediator without using light. A distinct non-photoredox engaged hydrogen-atom-transfer (HAT) mechanism that used a nitrogen-centered radical cation produced from NHS is initially revealed. Notably, only 5-10 equivalents of ethers as coupling partners are used, which allows for structurally diverse and complex ethers to engage in this process, to create highly medicinally relevant Cα-heteroarylated ethers. Furthermore, more structurally diverse heterocyclics can serve as reactants for this process.
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Affiliation(s)
- Shihui Liu
- Shanghai Key Laboratory of New Drug Design , School of Pharmacy , State Key Laboratory of Bioengineering Reactor , East China University of Science and Technology , 130 Mei-long Road , Shanghai 200237 , China . ;
| | - Aoxia Liu
- Shanghai Key Laboratory of New Drug Design , School of Pharmacy , State Key Laboratory of Bioengineering Reactor , East China University of Science and Technology , 130 Mei-long Road , Shanghai 200237 , China . ;
| | - Yongqiang Zhang
- Shanghai Key Laboratory of New Drug Design , School of Pharmacy , State Key Laboratory of Bioengineering Reactor , East China University of Science and Technology , 130 Mei-long Road , Shanghai 200237 , China . ;
| | - Wei Wang
- Shanghai Key Laboratory of New Drug Design , School of Pharmacy , State Key Laboratory of Bioengineering Reactor , East China University of Science and Technology , 130 Mei-long Road , Shanghai 200237 , China . ;
- Department of Chemistry and Chemical Biology , University of New Mexico , Albuquerque , NM 87131-0001 , USA
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29
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Huang Z, Dong G. Site-Selectivity Control in Organic Reactions: A Quest To Differentiate Reactivity among the Same Kind of Functional Groups. Acc Chem Res 2017; 50:465-471. [PMID: 28945402 DOI: 10.1021/acs.accounts.6b00476] [Citation(s) in RCA: 105] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Abstract
On our path to the perfection of organic synthesis lies the challenge of controlling site selectivity, which is the differentiation of reactivity among the same kind of functional groups. Overcoming this challenge would significantly enhance synthetic efficiency and minimize waste production, which in turn calls for the development of new catalysts, reagents, tactics, and innovative strategies.
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Affiliation(s)
- Zhongxing Huang
- Department of Chemistry, University of Chicago, 5735 South Ellis Avenue, Chicago, Illinois 60637, United States
| | - Guangbin Dong
- Department of Chemistry, University of Chicago, 5735 South Ellis Avenue, Chicago, Illinois 60637, United States
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30
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Kianmehr E, Pakbaznia A, Faghih N, Foroumadi A. Metal-free chemo- and regioselective acylation of pyridine derivatives with alcohols in water. Tetrahedron 2017. [DOI: 10.1016/j.tet.2017.01.039] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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31
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Soumya T, Muhammed Ajmal C, Bahulayan D. Synthesis of bioactive and fluorescent pyridine-triazole-coumarin peptidomimetics through sequential click-multicomponent reactions. Bioorg Med Chem Lett 2017; 27:450-455. [DOI: 10.1016/j.bmcl.2016.12.044] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2016] [Revised: 11/30/2016] [Accepted: 12/15/2016] [Indexed: 02/01/2023]
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32
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Sanchez LM, Pasquale G, Sathicq Á, Ruiz D, Jios J, Ferreira de Souza AL, Romanelli GP. Simple and ecofriendly synthesis of dihydropyrimidinones (thiones), dihydropyridines, and pyridines using 3-formylchromones as substrates assisted by a recyclable Preyssler heteropolyacid. HETEROATOM CHEMISTRY 2016. [DOI: 10.1002/hc.21340] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Laura M. Sanchez
- Departamento de Química; Facultad de Ciencias Exactas; Centro de Investigación y Desarrollo en Ciencias Aplicadas ‘Dr. J. J. Ronco’ (CINDECA); UNLP-CCT- La Plata-CONICET; La Plata Argentina
| | - Gustavo Pasquale
- Cátedra de Química Orgánica; Facultad de Ciencias Agrarias y Forestales; Universidad Nacional de La Plata; La Plata Argentina
| | - Ángel Sathicq
- Departamento de Química; Facultad de Ciencias Exactas; Centro de Investigación y Desarrollo en Ciencias Aplicadas ‘Dr. J. J. Ronco’ (CINDECA); UNLP-CCT- La Plata-CONICET; La Plata Argentina
| | - Diego Ruiz
- Cátedra de Química Orgánica; Facultad de Ciencias Agrarias y Forestales; Universidad Nacional de La Plata; La Plata Argentina
| | - Jorge Jios
- LaSeISiC; Departamento de Química; Facultad de Ciencias Exactas; UNLP-CICPBA; La Plata Argentina
| | | | - Gustavo P. Romanelli
- Departamento de Química; Facultad de Ciencias Exactas; Centro de Investigación y Desarrollo en Ciencias Aplicadas ‘Dr. J. J. Ronco’ (CINDECA); UNLP-CCT- La Plata-CONICET; La Plata Argentina
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33
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Becker G, Bolbos R, Costes N, Redouté J, Newman-Tancredi A, Zimmer L. Selective serotonin 5-HT1A receptor biased agonists elicitdistinct brain activation patterns: a pharmacoMRI study. Sci Rep 2016; 6:26633. [PMID: 27211078 PMCID: PMC4876409 DOI: 10.1038/srep26633] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2015] [Accepted: 05/06/2016] [Indexed: 11/09/2022] Open
Abstract
Serotonin 1A (5-HT1A) receptors are involved in several physiological and pathological processes and constitute therefore an important therapeutic target. The recent pharmacological concept of biased agonism asserts that highly selective agonists can preferentially direct receptor signaling to specific intracellular responses, opening the possibility of drugs targeting a receptor subtype in specific brain regions. The present study brings additional support to this concept thanks to functional magnetic resonance imaging (7 Tesla-fMRI) in anaesthetized rats. Three 5-HT1A receptor agonists (8-OH-DPAT, F13714 and F15599) and one 5-HT1A receptor antagonist (MPPF) were compared in terms of influence on the brain blood oxygen level-dependent (BOLD) signal. Our study revealed for the first time contrasting BOLD signal patterns of biased agonists in comparison to a classical agonist and a silent antagonist. By providing functional information on the influence of pharmacological activation of 5-HT1A receptors in specific brain regions, this neuroimaging approach, translatable to the clinic, promises to be useful in exploring the new concept of biased agonism in neuropsychopharmacology.
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Affiliation(s)
- G Becker
- Université Claude Bernard Lyon 1, Centre de Recherche en Neurosciences de Lyon, CNRS, INSERM, Lyon, France.,Hospices Civils de Lyon, Lyon, France
| | - R Bolbos
- CERMEP - Imagerie du vivant, Lyon, France
| | - N Costes
- CERMEP - Imagerie du vivant, Lyon, France
| | - J Redouté
- CERMEP - Imagerie du vivant, Lyon, France
| | | | - L Zimmer
- Université Claude Bernard Lyon 1, Centre de Recherche en Neurosciences de Lyon, CNRS, INSERM, Lyon, France.,Hospices Civils de Lyon, Lyon, France.,CERMEP - Imagerie du vivant, Lyon, France
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Goswami L, Gogoi S, Gogoi J, Boruah RK, Boruah RC, Gogoi P. Facile Diversity-Oriented Synthesis of Polycyclic Pyridines and Their Cytotoxicity Effects in Human Cancer Cell Lines. ACS COMBINATORIAL SCIENCE 2016; 18:253-61. [PMID: 26975927 DOI: 10.1021/acscombsci.5b00192] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
A three-component cascade method has been developed for the direct synthesis of polysubstituted pyridines. This strategy provides a very convenient route to pyridines using a variety of β-bromo-α,β-unsaturated aldehydes, 1,3-diketones, and ammonium acetate without any additional catalyst or metal salt under mild conditions. A variety of β-ketoesters and 4-hydroxycoumarin were also used instead of 1,3-diketones for the diverse synthesis of polycyclic pyridines. One of the synthesized pyridines has been unambiguously established by a single crystal XRD study. All of the synthesized pyridine derivatives were evaluated for their antiproliferative properties in vitro against the human cancer cell lines HeLa, Me180, and ZR751. Compounds 4{4,1} and 4{2,4} showed significant cytotoxicity in the human breast cancer cell line ZR751 and cervical cancer cell line Me180, respectively, and a few other compounds were found to have moderate activities.
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Affiliation(s)
- Limi Goswami
- Medicinal
Chemistry Division and ‡Analytical Chemistry Division, CSIR-North East Institute of Science and Technology, Jorhat, Assam 785006, India
| | - Shyamalee Gogoi
- Medicinal
Chemistry Division and ‡Analytical Chemistry Division, CSIR-North East Institute of Science and Technology, Jorhat, Assam 785006, India
| | - Junali Gogoi
- Medicinal
Chemistry Division and ‡Analytical Chemistry Division, CSIR-North East Institute of Science and Technology, Jorhat, Assam 785006, India
| | - Rajani K. Boruah
- Medicinal
Chemistry Division and ‡Analytical Chemistry Division, CSIR-North East Institute of Science and Technology, Jorhat, Assam 785006, India
| | - Romesh C. Boruah
- Medicinal
Chemistry Division and ‡Analytical Chemistry Division, CSIR-North East Institute of Science and Technology, Jorhat, Assam 785006, India
| | - Pranjal Gogoi
- Medicinal
Chemistry Division and ‡Analytical Chemistry Division, CSIR-North East Institute of Science and Technology, Jorhat, Assam 785006, India
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35
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Sharma R, Patel N, Vishwakarma RA, Bharatam PV, Bharate SB. Metal-free oxidative cyclization of acetophenones with diamines: a facile access to phenylpyridines. Chem Commun (Camb) 2016; 52:1009-12. [DOI: 10.1039/c5cc08498a] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
An efficient metal-free access to 2- and 3-phenylpyridines via oxidative coupling of acetophenones with 1,3-diaminopropane has been described.
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Affiliation(s)
- Rohit Sharma
- Medicinal Chemistry Division
- CSIR – Indian Institute of Integrative Medicine
- Jammu-180001
- India
- Academy of Scientific & Innovative Research (AcSIR)
| | - Neha Patel
- Department of Pharmacoinformatics and Department of Medicinal Chemistry
- National Institute of Pharmaceutical Education and Research (NIPER)
- Punjab-160062
- India
| | - Ram A. Vishwakarma
- Medicinal Chemistry Division
- CSIR – Indian Institute of Integrative Medicine
- Jammu-180001
- India
- Academy of Scientific & Innovative Research (AcSIR)
| | - Prasad V. Bharatam
- Department of Pharmacoinformatics and Department of Medicinal Chemistry
- National Institute of Pharmaceutical Education and Research (NIPER)
- Punjab-160062
- India
| | - Sandip B. Bharate
- Medicinal Chemistry Division
- CSIR – Indian Institute of Integrative Medicine
- Jammu-180001
- India
- Academy of Scientific & Innovative Research (AcSIR)
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36
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Prakash P, Gravel E, Li H, Miserque F, Habert A, den Hertog M, Ling WL, Namboothiri INN, Doris E. Direct and co-catalytic oxidative aromatization of 1,4-dihydropyridines and related substrates using gold nanoparticles supported on carbon nanotubes. Catal Sci Technol 2016. [DOI: 10.1039/c6cy00453a] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A heterogeneous catalyst was assembled by stabilization of gold nanoparticles on carbon nanotubes.
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Affiliation(s)
- Praveen Prakash
- Service de Chimie Bioorganique et de Marquage (SCBM)
- CEA
- Université Paris-Saclay
- 91191 Gif-sur-Yvette
- France
| | - Edmond Gravel
- Service de Chimie Bioorganique et de Marquage (SCBM)
- CEA
- Université Paris-Saclay
- 91191 Gif-sur-Yvette
- France
| | - Haiyan Li
- State Key Laboratory of Physical Chemistry for Solid Surfaces
- Department of Chemistry
- College of Chemistry and Chemical Engineering
- Xiamen University
- Xiamen 361005
| | - Frédéric Miserque
- DEN-Service de la corrosion et du comportement des matériaux dans leur environnement (SCCME)
- CEA
- Université Paris-Saclay
- 91191 Gif-sur-Yvette
- France
| | - Aurélie Habert
- Laboratoire Edifices Nanométriques
- NIMBE
- CEA
- Université Paris-Saclay
- 91191 Gif-sur-Yvette
| | - Martien den Hertog
- Département Physique LUmière Matière (PLUM)
- CNRS
- Institut Néel
- 38042 Grenoble
- France
| | - Wai Li Ling
- Institut de Biologie Structurale (IBS)
- CEA
- CNRS
- University Grenoble Alpes
- 38044 Grenoble
| | | | - Eric Doris
- Service de Chimie Bioorganique et de Marquage (SCBM)
- CEA
- Université Paris-Saclay
- 91191 Gif-sur-Yvette
- France
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37
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Wei H, Li Y, Xiao K, Cheng B, Wang H, Hu L, Zhai H. Synthesis of Polysubstituted Pyridines via a One-Pot Metal-Free Strategy. Org Lett 2015; 17:5974-7. [DOI: 10.1021/acs.orglett.5b02903] [Citation(s) in RCA: 60] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Hongbo Wei
- The
State Key Laboratory of Applied Organic Chemistry, College of Chemistry
and Chemical Engeneering, Lanzhou University, Lanzhou 730000, China
| | - Yun Li
- The
State Key Laboratory of Applied Organic Chemistry, College of Chemistry
and Chemical Engeneering, Lanzhou University, Lanzhou 730000, China
| | - Ke Xiao
- The
State Key Laboratory of Applied Organic Chemistry, College of Chemistry
and Chemical Engeneering, Lanzhou University, Lanzhou 730000, China
| | - Bin Cheng
- The
State Key Laboratory of Applied Organic Chemistry, College of Chemistry
and Chemical Engeneering, Lanzhou University, Lanzhou 730000, China
| | - Huifei Wang
- Laboratory
of Chemical Genomics, School of Chemical Biology and Biotechnology, Shenzhen Graduate School of Peking University, Shenzhen 518055, China
| | - Lin Hu
- Department
of Chemistry, Brandeis University, Waltham, Massachusetts 02454-9110, United States
| | - Hongbin Zhai
- The
State Key Laboratory of Applied Organic Chemistry, College of Chemistry
and Chemical Engeneering, Lanzhou University, Lanzhou 730000, China
- Laboratory
of Chemical Genomics, School of Chemical Biology and Biotechnology, Shenzhen Graduate School of Peking University, Shenzhen 518055, China
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin 300071, China
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38
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Gürdere MB, Öztürk SM, Ceylan M. One-pot Synthesis of 2,6-Diaryl-4-indolyl- and 4-Aryl-2,6-bis-(Indolyl)pyridine Derivatives in Neat Conditions. ORG PREP PROCED INT 2015. [DOI: 10.1080/00304948.2015.1088758] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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39
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Zhu C, Bi B, Ding Y, Zhang T, Chen QY. A mild and facile synthesis of polyfunctionalized pyridines: merging three-component cyclization and aerobic oxidation by amine/metal catalysts. Org Biomol Chem 2015; 13:6278-85. [DOI: 10.1039/c5ob00630a] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A mild and facile synthesis of polyfunctionalized pyridines from NH4OAc, β,γ-unsaturated α-ketoesters, and ketones/aldehydes has been reported through tandem three-component cyclization and aerobic oxidation using the combination of amine and metal catalysts.
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Affiliation(s)
- Chunyin Zhu
- School of Chemistry and Chemical Engineering
- Jiangsu University
- Zhenjiang 212013
- P. R. China
| | - Benwei Bi
- School of Chemistry and Chemical Engineering
- Jiangsu University
- Zhenjiang 212013
- P. R. China
| | - Ya Ding
- School of Chemistry and Chemical Engineering
- Jiangsu University
- Zhenjiang 212013
- P. R. China
| | - Te Zhang
- School of Chemistry and Chemical Engineering
- Jiangsu University
- Zhenjiang 212013
- P. R. China
| | - Qiu-Yun Chen
- School of Chemistry and Chemical Engineering
- Jiangsu University
- Zhenjiang 212013
- P. R. China
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40
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Vinoth P, Prasad PSR, Vivekanand T, Maheswari CU, Nagarajan S, Menéndez JC, Sridharan V. Expedient, catalyst-free, three-component synthesis of fused tetrahydropyridines in water. RSC Adv 2015. [DOI: 10.1039/c5ra18804k] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
An expedient, three-component synthesis of oxazolo[3,2-a]pyridines and pyrido[2,1-b][1,3]oxazines was achieved under catalyst-free conditions in water.
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Affiliation(s)
- Perumal Vinoth
- Organic Synthesis Group
- Department of Chemistry
- School of Chemical and Biotechnology
- SASTRA University
- Thanjavur 613401
| | - P. S. Ram Prasad
- Organic Synthesis Group
- Department of Chemistry
- School of Chemical and Biotechnology
- SASTRA University
- Thanjavur 613401
| | - Thavaraj Vivekanand
- Organic Synthesis Group
- Department of Chemistry
- School of Chemical and Biotechnology
- SASTRA University
- Thanjavur 613401
| | - C. Uma Maheswari
- Organic Synthesis Group
- Department of Chemistry
- School of Chemical and Biotechnology
- SASTRA University
- Thanjavur 613401
| | - Subbiah Nagarajan
- Organic Synthesis Group
- Department of Chemistry
- School of Chemical and Biotechnology
- SASTRA University
- Thanjavur 613401
| | - J. Carlos Menéndez
- Departamento de Química Orgánica y Farmacéutica
- Facultad de Farmacia
- Universidad Complutense
- 28040 Madrid
- Spain
| | - Vellaisamy Sridharan
- Organic Synthesis Group
- Department of Chemistry
- School of Chemical and Biotechnology
- SASTRA University
- Thanjavur 613401
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41
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Nikam PS, Patil SP, Kanawade SB, Gangurde SA, Rathi M, Toche RB. The Use of Pinner Type Reaction for the Synthesis of New Indeno[2,1- c]pyridine-4-carbonitrile Derivatives. J Heterocycl Chem 2015. [DOI: 10.1002/jhet.1990] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Prashant S. Nikam
- Organic Chemistry Research Center, Department of Chemistry; K.T.H.M. College, Affiliated to University of Pune; Gangapur Road Nashik 422 002 Maharashtra India
| | - Shivaraj P. Patil
- Organic Chemistry Research Center, Department of Chemistry; K.T.H.M. College, Affiliated to University of Pune; Gangapur Road Nashik 422 002 Maharashtra India
| | - Shrikant B. Kanawade
- Organic Chemistry Research Center, Department of Chemistry; K.T.H.M. College, Affiliated to University of Pune; Gangapur Road Nashik 422 002 Maharashtra India
| | - Sachin A. Gangurde
- Organic Chemistry Research Center, Department of Chemistry; K.T.H.M. College, Affiliated to University of Pune; Gangapur Road Nashik 422 002 Maharashtra India
| | - Meenakshi Rathi
- Organic Chemistry Research Center, Department of Chemistry; K.T.H.M. College, Affiliated to University of Pune; Gangapur Road Nashik 422 002 Maharashtra India
| | - Raghunath B. Toche
- Organic Chemistry Research Center, Department of Chemistry; K.T.H.M. College, Affiliated to University of Pune; Gangapur Road Nashik 422 002 Maharashtra India
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42
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Hussain AA, Abdulla MM, Amr AEGE, Al-Omar MA, Shalaby AFA. Anti-inflammatory activities of some newly synthesized pyridinyl- and indazolyl benzamide derivatives. RUSSIAN JOURNAL OF BIOORGANIC CHEMISTRY 2015; 41:87-96. [DOI: 10.1134/s106816201405015x] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/02/2023]
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43
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Androgen receptor antagonists and anti-prostate cancer activities of some newly synthesized substituted fused pyrazolo-, triazolo- and thiazolo-pyrimidine derivatives. Int J Mol Sci 2014; 15:21587-602. [PMID: 25421248 PMCID: PMC4264242 DOI: 10.3390/ijms151121587] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2014] [Revised: 11/17/2014] [Accepted: 11/18/2014] [Indexed: 11/22/2022] Open
Abstract
A series of substituted pyrazole, triazole and thiazole derivatives (2–13) were synthesized from 1-(naphtho[1,2-d]thiazol-2-yl)hydrazine as starting material and evaluated as androgen receptor antagonists and anti-prostate cancer agents. The newly synthesized compounds showed potent androgen receptor antagonists and anti-prostate cancer activities with low toxicity (lethal dose 50 (LD50)) comparable to Bicalutamide as reference drug. The structures of newly synthesized compounds were confirmed by IR, 1H-NMR, 13C-NMR, and MS spectral data and elemental analysis. The detailed synthesis, spectroscopic data, LD50 values and pharmacological activities of the synthesized compounds are reported.
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44
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Allais C, Grassot JM, Rodriguez J, Constantieux T. Metal-Free Multicomponent Syntheses of Pyridines. Chem Rev 2014; 114:10829-68. [DOI: 10.1021/cr500099b] [Citation(s) in RCA: 363] [Impact Index Per Article: 36.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Christophe Allais
- Aix Marseille Université, Centrale Marseille, CNRS, iSm2 UMR 7313, 13397 MARSEILLE, France
| | - Jean-Marie Grassot
- Aix Marseille Université, Centrale Marseille, CNRS, iSm2 UMR 7313, 13397 MARSEILLE, France
| | - Jean Rodriguez
- Aix Marseille Université, Centrale Marseille, CNRS, iSm2 UMR 7313, 13397 MARSEILLE, France
| | - Thierry Constantieux
- Aix Marseille Université, Centrale Marseille, CNRS, iSm2 UMR 7313, 13397 MARSEILLE, France
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45
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He Y, Guo S, Zhang X, Fan X. Zinc-Mediated One-Pot Tandem Reaction of Nitriles with Propargyl Bromides: An Access to 3-Alkynylpyridines. J Org Chem 2014; 79:10611-8. [DOI: 10.1021/jo501869d] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Affiliation(s)
- Yan He
- School of Environment, School
of Chemistry and Chemical Engineering, Collaborative Innovation Center
of Henan Province for Green Manufacturing of Fine Chemicals, Henan
Key Laboratory for Environmental Pollution Control, Henan Normal University, Xinxiang, Henan 453007, P. R. China
| | - Shenghai Guo
- School of Environment, School
of Chemistry and Chemical Engineering, Collaborative Innovation Center
of Henan Province for Green Manufacturing of Fine Chemicals, Henan
Key Laboratory for Environmental Pollution Control, Henan Normal University, Xinxiang, Henan 453007, P. R. China
| | - Xinying Zhang
- School of Environment, School
of Chemistry and Chemical Engineering, Collaborative Innovation Center
of Henan Province for Green Manufacturing of Fine Chemicals, Henan
Key Laboratory for Environmental Pollution Control, Henan Normal University, Xinxiang, Henan 453007, P. R. China
| | - Xuesen Fan
- School of Environment, School
of Chemistry and Chemical Engineering, Collaborative Innovation Center
of Henan Province for Green Manufacturing of Fine Chemicals, Henan
Key Laboratory for Environmental Pollution Control, Henan Normal University, Xinxiang, Henan 453007, P. R. China
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46
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Srinivasula Reddy L, Ram Reddy T, Gangi Reddy NC, Mohan RB, Lingappa Y. Pd-Mediated Multicomponent Synthesis of Highly Functionalized Pyridines and Consequential C-C Coupling Using Suzuki Reaction in One Pot: TheirIn VitroEvaluation as Potential Antibacterial Agents. J Heterocycl Chem 2014. [DOI: 10.1002/jhet.1855] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- L. Srinivasula Reddy
- Department of Chemistry; Sri Venkateswara University; Tirupati 517 502 Andhra Pradesh India
- Dr. Reddy's Laboratories Limited; Bollaram Road, Miyapur Hyderabad 500 049 Andhra Pradesh India
| | - T. Ram Reddy
- Department of Chemistry; Sri Venkateswara University; Tirupati 517 502 Andhra Pradesh India
- Dr. Reddy's Laboratories Limited; Bollaram Road, Miyapur Hyderabad 500 049 Andhra Pradesh India
| | - N. C. Gangi Reddy
- Department of Chemistry, School of Physical Sciences; Yogi Vemana University; Kadapa 516 003 Andhra Pradesh India
| | - Reddy Bodireddy Mohan
- Department of Chemistry, School of Physical Sciences; Yogi Vemana University; Kadapa 516 003 Andhra Pradesh India
| | - Y. Lingappa
- Department of Chemistry; Sri Venkateswara University; Tirupati 517 502 Andhra Pradesh India
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47
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Behbehani H, Ibrahim HM. A strategy for the synthesis of 2-aryl-3-dimethylaminopyrazolo-[3,4-c]pyridines that utilizes [4+1] cycloaddition reactions of 5-arylazo-2,3,6-trisubstituted pyridines. Tetrahedron 2013. [DOI: 10.1016/j.tet.2013.10.061] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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48
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Vanadium-Substituted Wells-Dawson Heteropolyacid as Catalyst for Liquid Phase Oxidation of 1,4-Dihydropyridine Derivative. Catal Letters 2013. [DOI: 10.1007/s10562-013-1111-6] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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49
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Patil UD, Mahulikar PP. An Innovative Protocol for the Synthesis of 3-(Pyridin-2-yl)-5- sec-aminobiphenyl-4-carbonitriles and 9,10-Dihydro-3-(pyridine-2-yl)-1- sec-aminophenanthrene-2-carbonitriles. J Heterocycl Chem 2013. [DOI: 10.1002/jhet.1712] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Umesh D. Patil
- School of Chemical Sciences; North Maharashtra University; Jalgaon; 425 001; India
| | - Pramod P. Mahulikar
- School of Chemical Sciences; North Maharashtra University; Jalgaon; 425 001; India
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50
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Non-concerted nucleophilic [4+1] cycloaddition of (dimethylamino)methoxycarbene to arylazonicotinates in the synthesis of pyrazolo[3,4-c]pyridines and pyrazolo[4′,3′:4,5]pyrido[2,3-d]pyrimidines. Tetrahedron 2013. [DOI: 10.1016/j.tet.2013.05.040] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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