1
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Giannessi L, Longo M, Massera C, Radi M. Late-stage functionalization of the 4-amino-2-pyridone chemotype using electrochemical and MCR approaches. Chem Commun (Camb) 2024. [PMID: 39139069 DOI: 10.1039/d4cc02473g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/15/2024]
Abstract
We report the development and application of different strategies for the late-stage functionalization (LSF) of the biologically relevant 4-amino-2-pyridone chemotype. Using the recently discovered PCSK9 inhibitor 5c as a prototype, a series of electrochemical LSF (e-LSF) and multicomponent LSF (MCR-LSF) have been set-up to decorate the 4-amino-2-pyridone scaffold. The usefulness of these methods has been demonstrated by generating a series of novel derivatives in a site-selective and sustainable way.
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Affiliation(s)
- Lisa Giannessi
- Dipartimento di Scienze degli Alimenti e del Farmaco (DipALIFAR), Università degli Studi di Parma, Viale delle Scienze, 27/A, 43124 Parma, Italy.
| | - Matteo Longo
- Dipartimento di Scienze degli Alimenti e del Farmaco (DipALIFAR), Università degli Studi di Parma, Viale delle Scienze, 27/A, 43124 Parma, Italy.
| | - Chiara Massera
- Dipartimento di Scienze Chimiche, della Vita e della Sostenibilità Ambientale, Università degli Studi di Parma, Viale delle Scienze 17/A, Parma, 43124, Italy
| | - Marco Radi
- Dipartimento di Scienze degli Alimenti e del Farmaco (DipALIFAR), Università degli Studi di Parma, Viale delle Scienze, 27/A, 43124 Parma, Italy.
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2
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Suzuki H, Yamanokuchi S, Moro R, Matsuda T. Palladium-Catalyzed anti-Michael-Type Hydroamination of N-(Quinolin-8-yl)acrylamide with 2-Pyridones. Org Lett 2024; 26:6444-6448. [PMID: 39047185 DOI: 10.1021/acs.orglett.4c02234] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/27/2024]
Abstract
Here we report a palladium-catalyzed anti-Michael-type hydroamination of N-(quinolin-8-yl)acrylamide with 2-pyridones. The use of a palladium catalyst enables the α-addition of 2-pyridones, resulting in the formation of a range of N-substituted 2-pyridone carboxamides with yields ranging from 10% to 80%. Derivatization of the products highlights the utility of this transformation. Preliminary mechanistic investigations suggest that the reaction proceeds through the direct addition of a nitrogen atom of 2-pyridones, ruling out other pathways such as O-to-N-alkyl migration.
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Affiliation(s)
- Hirotsugu Suzuki
- Tenure-Track Program for Innovative Research, University of Fukui, 3-9-1 Bunkyo, Fukui-shi, Fukui 910-8507, Japan
| | - Soma Yamanokuchi
- Department of Applied Chemistry, Tokyo University of Science, 1-3 Kagurazaka, Shinjuku-ku, Tokyo 162-8601, Japan
| | - Ryota Moro
- Department of Applied Chemistry, Tokyo University of Science, 1-3 Kagurazaka, Shinjuku-ku, Tokyo 162-8601, Japan
| | - Takanori Matsuda
- Department of Applied Chemistry, Tokyo University of Science, 1-3 Kagurazaka, Shinjuku-ku, Tokyo 162-8601, Japan
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3
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Ibrahim MM, Azmi MN, Alhawarri MB, Kamal NNSNM, AbuMahmoud H. Synthesis, characterization and bioactivity of new pyridine-2(H)-one, nicotinonitrile, and furo[2,3-b]pyridine derivatives. Mol Divers 2024:10.1007/s11030-024-10934-5. [PMID: 39009909 DOI: 10.1007/s11030-024-10934-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2024] [Accepted: 07/09/2024] [Indexed: 07/17/2024]
Abstract
Pyridone heterocycles, such as furo[2,3-b]pyridines, have emerged as prominent scaffolds in medicinal chemistry due to their versatile pharmacological properties, including significant anticancer activity. In this study, we successfully synthesized new pyridine-2(H)-one, nicotinonitrile, and furo[2,3-b]pyridine derivatives from chalcones bearing 4-(benzyloxy)phenyl and dichlorothiophenyl subunits to explore their therapeutic potential against breast cancer. By employing a synthetic strategy involving Claisen-Schmidt condensation followed by sequential cyclizations and functional modifications, we synthesized and characterized four compounds (MI-S0, MI-S1, MI-S2, and MI-S3) using various spectroscopic methods, including FT-IR, 1H-NMR, 13C-NMR, DEPT, H,H- and C,H-COSY, and HRMS. The in vitro cytotoxic activity of these compounds was evaluated against two breast cancer cell lines, MCF-7 and MDA-MB-231, and compared with a noncancerous breast cell line, MCF-10A. All compounds exhibited potent cytotoxic activities with minimal selectivity toward normal cells. Molecular docking studies targeting the serine/threonine kinase AKT1, estrogen receptor alpha (ERα), and human epidermal growth factor receptor 2 (HER2) revealed strong binding affinities, suggesting a mechanism involving the disruption of key cellular signaling pathways. These findings underscore the potential of furo[2,3-b]pyridine derivatives as promising candidates for further development into anticancer agents, laying the groundwork for future investigations into their selective therapeutic efficacy and molecular mechanisms of action.
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Affiliation(s)
- Mohammad M Ibrahim
- Department of Chemistry, Faculty of Science, Al Al-Bayt University, P.O. BOX 130040, Al-Mafraq, 25113, Jordan.
| | - Mohamad Nurul Azmi
- School of Chemical Sciences, Universiti Sains Malaysia, 11800, Minden, Pulau Pinang, Malaysia
| | - Maram B Alhawarri
- Department of Pharmacy, Faculty of Pharmacy, Jadara University, P.O.Box 733, Irbid, 21110, Jordan
| | - Nik Nur Syazni Nik Mohamed Kamal
- Department of Toxicology, Advanced Medical and Dental Institute, Universiti Sains Malaysia, 13200, Kepala Batas, Penang, Malaysia
| | - Hasan AbuMahmoud
- Department of Chemistry, Faculty of Science, Al Al-Bayt University, P.O. BOX 130040, Al-Mafraq, 25113, Jordan
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4
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Wang N, Huang Y, Zi Y, Wang M, Huang W. P(NMe 2) 3-Mediated Regioselective N-Alkylation of 2-Pyridones via Direct Deoxygenation of α-Keto Esters. J Org Chem 2024; 89:3657-3665. [PMID: 38366991 DOI: 10.1021/acs.joc.3c02819] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/19/2024]
Abstract
A practical and regioselective direct N-alkylation of 2-pyridones is enabled by use of α-keto esters in the P(NMe2)3-mediated deoxygenation process. The reaction proceeds under mild conditions to produce N-alkylated 2-pyridones with high selectivity and generality, and the protocol is shown to be applicable for the scale-up synthesis, which makes it promising for practical applications.
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Affiliation(s)
- Nan Wang
- School of Chemistry and Chemical Engineering, Nantong University, Nantong 226019, P. R. China
| | - Yuanyuan Huang
- School of Chemistry and Chemical Engineering, Nantong University, Nantong 226019, P. R. China
| | - You Zi
- School of Chemistry and Chemical Engineering, Nantong University, Nantong 226019, P. R. China
| | - Mengke Wang
- School of Chemistry and Chemical Engineering, Nantong University, Nantong 226019, P. R. China
| | - Weichun Huang
- School of Chemistry and Chemical Engineering, Nantong University, Nantong 226019, P. R. China
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5
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Zhang Y, Vanderghinste J, Wang J, Das S. Challenges and recent advancements in the synthesis of α,α-disubstituted α-amino acids. Nat Commun 2024; 15:1474. [PMID: 38368416 PMCID: PMC10874380 DOI: 10.1038/s41467-024-45790-2] [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: 06/13/2023] [Accepted: 02/01/2024] [Indexed: 02/19/2024] Open
Abstract
α,α-Disubstituted α-amino acids (α-AAs) have improved properties compared to other types of amino acids. They serve as modifiers of peptide conformation and as precursors of bioactive compounds. Therefore, it has been a long-standing goal to construct this highly valuable scaffold efficiently in organic synthesis and drug discovery. However, access to α,α-disubstituted α-AAs is highly challenging and largely unexplored due to their steric constraints. To overcome these, remarkable advances have been made in the last decades. Emerging strategies such as synergistic enantioselective catalysis, visible-light-mediated photocatalysis, metal-free methodologies and CO2 fixation offer new avenues to access the challenging synthesis of α,α-disubstituted α-AAs and continuously bring additional contributions to this field. This review article aims to provide an overview of the recent advancements since 2015 and discuss existing challenges for the synthesis of α,α-disubstituted α-AAs and their derivatives.
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Affiliation(s)
- Yu Zhang
- Shanghai Frontiers Science Center for Chinese Medicine Chemical Biology, Institute of Interdisciplinary Integrative Medicine Research, Shanghai University of Traditional Chinese Medicine, No. 1200, Cailun Road, 201203, Shanghai, China.
- Department of Chemistry, University of Antwerp, Groenenborgerlaan 171, 2020, Antwerpen, Belgium.
| | - Jaro Vanderghinste
- Department of Chemistry, University of Antwerp, Groenenborgerlaan 171, 2020, Antwerpen, Belgium
| | - Jinxin Wang
- Shanghai Frontiers Science Center for Chinese Medicine Chemical Biology, Institute of Interdisciplinary Integrative Medicine Research, Shanghai University of Traditional Chinese Medicine, No. 1200, Cailun Road, 201203, Shanghai, China
| | - Shoubhik Das
- Department of Chemistry, University of Antwerp, Groenenborgerlaan 171, 2020, Antwerpen, Belgium.
- Department of Chemistry, University of Bayreuth, Bayreuth, Germany.
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6
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Sarkar S, Mayer Bridwell AE, Good JAD, Wang ER, McKee SR, Valenta J, Harrison GA, Flentie KN, Henry FL, Wixe T, Demirel P, Vagolu SK, Chatagnon J, Machelart A, Brodin P, Tønjum T, Stallings CL, Almqvist F. Design, Synthesis, and Evaluation of Novel Δ 2-Thiazolino 2-Pyridone Derivatives That Potentiate Isoniazid Activity in an Isoniazid-Resistant Mycobacterium tuberculosis Mutant. J Med Chem 2023; 66:11056-11077. [PMID: 37485869 PMCID: PMC10461229 DOI: 10.1021/acs.jmedchem.3c00358] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2023] [Indexed: 07/25/2023]
Abstract
Mycobacterium tuberculosis (Mtb) drug resistance poses an alarming threat to global tuberculosis control. We previously reported that C10, a ring-fused thiazolo-2-pyridone, inhibits Mtb respiration, blocks biofilm formation, and restores the activity of the antibiotic isoniazid (INH) in INH-resistant Mtb isolates. This discovery revealed a new strategy to address INH resistance. Expanding upon this strategy, we identified C10 analogues with improved potency and drug-like properties. By exploring three heterocycle spacers (oxadiazole, 1,2,3-triazole, and isoxazole) on the ring-fused thiazolo-2-pyridone scaffold, we identified two novel isoxazoles, 17h and 17j. 17h and 17j inhibited Mtb respiration and biofilm formation more potently with a broader therapeutic window, were better potentiators of INH-mediated inhibition of an INH-resistant Mtb mutant, and more effectively inhibited intracellular Mtb replication than C10. The (-)17j enantiomer showed further enhanced activity compared to its enantiomer and the 17j racemic mixture. Our potent second-generation C10 analogues offer promise for therapeutic development against drug-resistant Mtb.
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Affiliation(s)
- Souvik Sarkar
- Department
of Chemistry, Umeå University, SE-90187 Umeå, Sweden
| | - Anne E. Mayer Bridwell
- Department
of Molecular Microbiology, Center for Women’s Infectious Disease
Research, Washington University School of
Medicine, St. Louis, 63110 Missouri, United States
| | | | - Erin R. Wang
- Department
of Molecular Microbiology, Center for Women’s Infectious Disease
Research, Washington University School of
Medicine, St. Louis, 63110 Missouri, United States
| | - Samuel R. McKee
- Department
of Molecular Microbiology, Center for Women’s Infectious Disease
Research, Washington University School of
Medicine, St. Louis, 63110 Missouri, United States
| | - Joy Valenta
- Department
of Molecular Microbiology, Center for Women’s Infectious Disease
Research, Washington University School of
Medicine, St. Louis, 63110 Missouri, United States
| | - Gregory A. Harrison
- Department
of Molecular Microbiology, Center for Women’s Infectious Disease
Research, Washington University School of
Medicine, St. Louis, 63110 Missouri, United States
| | - Kelly N. Flentie
- Department
of Molecular Microbiology, Center for Women’s Infectious Disease
Research, Washington University School of
Medicine, St. Louis, 63110 Missouri, United States
| | - Frederick L. Henry
- Department
of Molecular Microbiology, Center for Women’s Infectious Disease
Research, Washington University School of
Medicine, St. Louis, 63110 Missouri, United States
| | - Torbjörn Wixe
- Department
of Chemistry, Umeå University, SE-90187 Umeå, Sweden
| | - Peter Demirel
- Department
of Chemistry, Umeå University, SE-90187 Umeå, Sweden
| | - Siva K. Vagolu
- Department
of Microbiology, University of Oslo, N-0316 Oslo, Norway
| | - Jonathan Chatagnon
- University
Lille, CNRS, INSERM, CHU Lille, Institut Pasteur de Lille, U1019-UMR
9017-CIIL-Center for Infection and Immunity of Lille, 59000 Lille, France
| | - Arnaud Machelart
- University
Lille, CNRS, INSERM, CHU Lille, Institut Pasteur de Lille, U1019-UMR
9017-CIIL-Center for Infection and Immunity of Lille, 59000 Lille, France
| | - Priscille Brodin
- University
Lille, CNRS, INSERM, CHU Lille, Institut Pasteur de Lille, U1019-UMR
9017-CIIL-Center for Infection and Immunity of Lille, 59000 Lille, France
| | - Tone Tønjum
- Department
of Microbiology, University of Oslo, N-0316 Oslo, Norway
- Oslo
University Hospital, N-0424 Oslo, Norway
| | - Christina L. Stallings
- Department
of Molecular Microbiology, Center for Women’s Infectious Disease
Research, Washington University School of
Medicine, St. Louis, 63110 Missouri, United States
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7
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Zhang FR, Cao F, Liu K, He YP, Luo G, Ye ZS. Bifunctional Lewis Base Catalyzed Asymmetric N-Allylic Alkylation of 2-Hydroxypyridines. Org Lett 2022; 24:8603-8608. [DOI: 10.1021/acs.orglett.2c03207] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Affiliation(s)
- Fei-Ruo Zhang
- Zhang Dayu School of Chemistry, Dalian University of Technology, Dalian 116024, P.R. China
| | - Fanshu Cao
- Institutes of Physical Science and Information Technology, Anhui University, Hefei 230601, P.R. China
| | - Kui Liu
- Zhang Dayu School of Chemistry, Dalian University of Technology, Dalian 116024, P.R. China
| | - Yi-Ping He
- Zhang Dayu School of Chemistry, Dalian University of Technology, Dalian 116024, P.R. China
| | - Gen Luo
- Institutes of Physical Science and Information Technology, Anhui University, Hefei 230601, P.R. China
| | - Zhi-Shi Ye
- Zhang Dayu School of Chemistry, Dalian University of Technology, Dalian 116024, P.R. China
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8
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Modified Fluoroquinolones as Antimicrobial Compounds Targeting Chlamydia trachomatis. Int J Mol Sci 2022; 23:ijms23126741. [PMID: 35743189 PMCID: PMC9224431 DOI: 10.3390/ijms23126741] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2022] [Revised: 06/13/2022] [Accepted: 06/14/2022] [Indexed: 02/01/2023] Open
Abstract
Chlamydia trachomatis causes the most common sexually transmitted bacterial infection and trachoma, an eye infection. Untreated infections can lead to sequelae, such as infertility and ectopic pregnancy in women and blindness. We previously enhanced the antichlamydial activity of the fluoroquinolone ciprofloxacin by grafting a metal chelating moiety onto it. In the present study, we pursued this pharmacomodulation and obtained nanomolar active molecules (EC50) against this pathogen. This gain in activity prompted us to evaluate the antibacterial activity of this family of molecules against other pathogenic bacteria, such as Neisseria gonorrhoeae and bacteria from the ESKAPE group. The results show that the novel molecules have selectively improved activity against C. trachomatis and demonstrate how the antichlamydial effect of fluoroquinolones can be enhanced.
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9
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Tu HF, Nie YH, Zheng C, You SL. Ir‐Catalyzed Intermolecular Asymmetric Allylic Amination with Pyridones. Adv Synth Catal 2022. [DOI: 10.1002/adsc.202200347] [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)
- Hang-Fei Tu
- Shanghai Institute of Organic Chemistry CHINA
| | - Yu-Han Nie
- Shanghai Institute of Organic Chemistry CHINA
| | - Chao Zheng
- Shanghai Institute of Organic Chemistry CHINA
| | - Shu-Li You
- Shanghai Institute of Organic Chemistry CHINA
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10
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Kwon Y, Kim W. Protecting Group‐Controlled Regioselective Synthesis for Unsymmetrical 3,5‐Disubstituted Pyridones. Adv Synth Catal 2022. [DOI: 10.1002/adsc.202101514] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Yong‐Ju Kwon
- Department of Chemistry and Nanoscience Ewha Womans University Seoul 03760 South Korea
| | - Won‐Suk Kim
- Department of Chemistry and Nanoscience Ewha Womans University Seoul 03760 South Korea
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11
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Wang Y, Xu Y, Khan S, Zhang Z, Khan A. Selective approach to N-substituted tertiary 2-pyridones. NEW J CHEM 2022. [DOI: 10.1039/d2nj01065h] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
Commercially available 2-hydroxypyridines are converted into enantiomerically enriched allylic 2-pyridones with elusive N-substituted tertiary carbon by means of Pd-catalyzed allylic amination of vinyl cyclic carbonates.
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Affiliation(s)
- Yu Wang
- Department of Chemistry, School of Chemistry, Xi’an Key Laboratory of Sustainable Energy Materials Chemistry and MOE Key Laboratory for Nonequilibrium and Modulation of Condensed Matter, Xi’an Jiao Tong University, Xi’an, 710049, P. R. China
| | - Yaoyao Xu
- Department of Chemistry, School of Chemistry, Xi’an Key Laboratory of Sustainable Energy Materials Chemistry and MOE Key Laboratory for Nonequilibrium and Modulation of Condensed Matter, Xi’an Jiao Tong University, Xi’an, 710049, P. R. China
| | - Shahid Khan
- Department of Chemistry, School of Chemistry, Xi’an Key Laboratory of Sustainable Energy Materials Chemistry and MOE Key Laboratory for Nonequilibrium and Modulation of Condensed Matter, Xi’an Jiao Tong University, Xi’an, 710049, P. R. China
| | - Zhunjie Zhang
- Department of Chemistry, School of Chemistry, Xi’an Key Laboratory of Sustainable Energy Materials Chemistry and MOE Key Laboratory for Nonequilibrium and Modulation of Condensed Matter, Xi’an Jiao Tong University, Xi’an, 710049, P. R. China
| | - Ajmal Khan
- Department of Chemistry, School of Chemistry, Xi’an Key Laboratory of Sustainable Energy Materials Chemistry and MOE Key Laboratory for Nonequilibrium and Modulation of Condensed Matter, Xi’an Jiao Tong University, Xi’an, 710049, P. R. China
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12
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Bharate JB, Ådén J, Gharibyan A, Adolfsson DE, Jayaweera SW, Singh P, Vielfort K, Tyagi M, Bonde M, Bergström S, Olofsson A, Almqvist F. K 2S 2O 8-mediated coupling of 6-amino-7-aminomethyl-thiazolino-pyridones with aldehydes to construct amyloid affecting pyrimidine-fused thiazolino-2-pyridones. Org Biomol Chem 2021; 19:9758-9772. [PMID: 34730163 DOI: 10.1039/d1ob01580j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We herein present the synthesis of diversely functionalized pyrimidine fused thiazolino-2-pyridones via K2S2O8-mediated oxidative coupling of 6-amino-7-(aminomethyl)-thiazolino-2-pyridones with aldehydes. The developed protocol is mild, has wide substrate scope, and does not require transition metal catalyst or base. Some of the synthesized compounds have an ability to inhibit the formation of Amyloid-β fibrils associated with Alzheimer's disease, while others bind to mature amyloid-β and α-synuclein fibrils.
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Affiliation(s)
| | - Jörgen Ådén
- Department of Chemistry, Umeå University, 901 87 Umeå, Sweden.
| | - Anna Gharibyan
- Department of Medical Biochemistry and Biophysics, Umeå University, 901 87 Umeå, Sweden
| | - Dan E Adolfsson
- Department of Chemistry, Umeå University, 901 87 Umeå, Sweden.
| | | | - Pardeep Singh
- Department of Chemistry, Umeå University, 901 87 Umeå, Sweden.
| | - Katarina Vielfort
- Department of Molecular Biology, Umeå University, 901 87 Umeå, Sweden
| | - Mohit Tyagi
- Department of Chemistry, Umeå University, 901 87 Umeå, Sweden.
| | - Mari Bonde
- Department of Chemistry, Umeå University, 901 87 Umeå, Sweden.
| | - Sven Bergström
- Department of Molecular Biology, Umeå University, 901 87 Umeå, Sweden
| | - Anders Olofsson
- Department of Medical Biochemistry and Biophysics, Umeå University, 901 87 Umeå, Sweden
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13
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Quantum Chemical and Experimental Studies of an Unprecedented Reaction Pathway of Nucleophilic Substitution of 2-Bromomethyl-1,3-thiaselenole with 1,3-Benzothiazole-2-thiol Proceeding Stepwise at Three Different Centers of Seleniranium Intermediates. Molecules 2021; 26:molecules26216685. [PMID: 34771094 PMCID: PMC8588063 DOI: 10.3390/molecules26216685] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2021] [Revised: 10/28/2021] [Accepted: 11/02/2021] [Indexed: 11/17/2022] Open
Abstract
The results of quantum chemical and experimental studies of the reaction of 2-bromomethyl-1,3-thiaselenole with 1,3-benzothiazole-2-thiol made it possible to discover the unprecedented pathway of this reaction, which proceeds stepwise at three different centers of seleniranium intermediates. The first stage includes an attack of thiolate anion at the selenium atom of the seleniranium cation accompanied by ring opening with the formation of (Z)-2-[(1,3-benzothiazol-2-ylsulfanyl)selanyl]ethenyl vinyl sulfide, which is converted to six-membered heterocycle, 2-(2,3-dihydro-1,4-thiaselenin-2-ylsulfanyl)-1,3-benzothiazole, in a 99% yield. The latter compound undergoes rearrangement with ring contraction producing five-membered heterocycle, 2-[(1,3-thiaselenol-2-ylmethyl)sulfanyl]-1,3-benzothiazole, in a 99% yield (the thermodynamic product). The formation of 1,2-bis[(Z)-2-(vinylsulfanyl)ethenyl] diselenide is the result of the disproportionation of (Z)-2-[(1,3-benzothiazol-2-ylsulfanyl)selanyl]ethenyl vinyl sulfide. Thus, based on the quantum chemical and experimental studies, a regioselective synthesis of the reaction products in high yields was developed.
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14
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Wang K, Liu Z, Xu G, Shao Y, Tang S, Chen P, Zhang X, Sun J. Chemo‐ and Enantioselective Insertion of Furyl Carbene into the N−H Bond of 2‐Pyridones. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202104708] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Kai Wang
- Jiangsu Key Laboratory of Advanced Catalytic Materials & Technology School of Petrochemical Engineering Changzhou University 1 Gehu Road 213164 Changzhou China
| | - Ziye Liu
- Shenzhen Bay Laboratory State Key Laboratory of Chemical Oncogeomics Peking University Shenzhen Graduate School Shenzhen 518055 China
| | - Guangyang Xu
- Jiangsu Key Laboratory of Advanced Catalytic Materials & Technology School of Petrochemical Engineering Changzhou University 1 Gehu Road 213164 Changzhou China
| | - Ying Shao
- Jiangsu Key Laboratory of Advanced Catalytic Materials & Technology School of Petrochemical Engineering Changzhou University 1 Gehu Road 213164 Changzhou China
| | - Shengbiao Tang
- Jiangsu Key Laboratory of Advanced Catalytic Materials & Technology School of Petrochemical Engineering Changzhou University 1 Gehu Road 213164 Changzhou China
| | - Ping Chen
- Shenzhen Jingtai Technology Co., Ltd. (XtalPi) Shenzhen 518000 China
| | - Xinhao Zhang
- Shenzhen Bay Laboratory State Key Laboratory of Chemical Oncogeomics Peking University Shenzhen Graduate School Shenzhen 518055 China
| | - Jiangtao Sun
- Jiangsu Key Laboratory of Advanced Catalytic Materials & Technology School of Petrochemical Engineering Changzhou University 1 Gehu Road 213164 Changzhou China
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15
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Wang K, Liu Z, Xu G, Shao Y, Tang S, Chen P, Zhang X, Sun J. Chemo- and Enantioselective Insertion of Furyl Carbene into the N-H Bond of 2-Pyridones. Angew Chem Int Ed Engl 2021; 60:16942-16946. [PMID: 34038015 DOI: 10.1002/anie.202104708] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2021] [Revised: 05/13/2021] [Indexed: 01/09/2023]
Abstract
Asymmetric carbene insertion reactions represent one of the most important protocols to construct carbon-heteroatom bonds. The use of donor-acceptor diazo compounds bearing an ester group is however a prerequisite for achieving high enantioselectivity. Herein, we report a chemo- and enantioselective formal N-H insertion of 2-pyridones that has been accomplished for the first time with enynones as the donor-donor carbene precursors. DFT calculations indicate an unprecedented enantioselective 1,4-proton transfer from O to C. The rhodium catalyst provides a chiral pocket in which the steric repulsion and the π-π interaction of the propeller ligand play a critical role in determining the selectivities.
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Affiliation(s)
- Kai Wang
- Jiangsu Key Laboratory of Advanced Catalytic Materials & Technology, School of Petrochemical Engineering, Changzhou University, 1 Gehu Road, 213164, Changzhou, China
| | - Ziye Liu
- Shenzhen Bay Laboratory, State Key Laboratory of Chemical Oncogeomics, Peking University Shenzhen Graduate School, Shenzhen, 518055, China
| | - Guangyang Xu
- Jiangsu Key Laboratory of Advanced Catalytic Materials & Technology, School of Petrochemical Engineering, Changzhou University, 1 Gehu Road, 213164, Changzhou, China
| | - Ying Shao
- Jiangsu Key Laboratory of Advanced Catalytic Materials & Technology, School of Petrochemical Engineering, Changzhou University, 1 Gehu Road, 213164, Changzhou, China
| | - Shengbiao Tang
- Jiangsu Key Laboratory of Advanced Catalytic Materials & Technology, School of Petrochemical Engineering, Changzhou University, 1 Gehu Road, 213164, Changzhou, China
| | - Ping Chen
- Shenzhen Jingtai Technology Co., Ltd. (XtalPi), Shenzhen, 518000, China
| | - Xinhao Zhang
- Shenzhen Bay Laboratory, State Key Laboratory of Chemical Oncogeomics, Peking University Shenzhen Graduate School, Shenzhen, 518055, China
| | - Jiangtao Sun
- Jiangsu Key Laboratory of Advanced Catalytic Materials & Technology, School of Petrochemical Engineering, Changzhou University, 1 Gehu Road, 213164, Changzhou, China
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16
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Wu YB, Wu YZ, Wu J, Xu D, Jiang H, Chang WW, Ma CY. Copper-Catalyzed Regioselective Coupling of Tosylhydrazones and 2-Pyridones: A Strategy for the Production of N-Alkylated Compounds. J Org Chem 2021; 86:6918-6926. [PMID: 33852298 DOI: 10.1021/acs.joc.1c00009] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The highly regioselective N-alkylation reaction of 2-pyridones was achieved through hydrazone chemistry, especially for substrates with bulky secondary alkyl groups. Described herein is a copper-catalyzed coupling reaction of pyridone derivatives with tosylhydrazones.
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Affiliation(s)
- Ye-Bin Wu
- Nanjing Chia Tai-Tianqing Pharmaceutical Co., Ltd., Hengguang Road No. 99-1, Qixia Nanjing, Jiangsu 210046, People's Rupublic of China
| | - You-Zhi Wu
- Nanjing Chia Tai-Tianqing Pharmaceutical Co., Ltd., Hengguang Road No. 99-1, Qixia Nanjing, Jiangsu 210046, People's Rupublic of China
| | - Jian Wu
- Nanjing Chia Tai-Tianqing Pharmaceutical Co., Ltd., Hengguang Road No. 99-1, Qixia Nanjing, Jiangsu 210046, People's Rupublic of China
| | - Dan Xu
- Nanjing Chia Tai-Tianqing Pharmaceutical Co., Ltd., Hengguang Road No. 99-1, Qixia Nanjing, Jiangsu 210046, People's Rupublic of China
| | - Hui Jiang
- Pharmaron (Shang Hai), Jinke Road No. 2727, Shang Hai 201203, People's Rupublic of China
| | - Wen-Wu Chang
- Pharmaron (Shang Hai), Jinke Road No. 2727, Shang Hai 201203, People's Rupublic of China
| | - Chang-You Ma
- Nanjing Chia Tai-Tianqing Pharmaceutical Co., Ltd., Hengguang Road No. 99-1, Qixia Nanjing, Jiangsu 210046, People's Rupublic of China
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17
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A 2-pyridone amide inhibitor of transcriptional activity in Chlamydia trachomatis. Antimicrob Agents Chemother 2021; 95:AAC.01826-20. [PMID: 33593835 PMCID: PMC8092867 DOI: 10.1128/aac.01826-20] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Chlamydia trachomatis is a strict intracellular bacterium that causes sexually transmitted infections and eye infections that can lead to life-long sequelae. Treatment options are limited to broad-spectrum antibiotics that disturb the commensal flora and contribute to selection of antibiotic-resistant bacteria. Hence, development of novel drugs that specifically target C. trachomatis would be beneficial. 2-pyridone amides are potent and specific inhibitors of Chlamydia infectivity. The first generation compound KSK120, inhibits the developmental cycle of Chlamydia resulting in reduced infectivity of progeny bacteria. Here, we show that the improved, highly potent second-generation 2-pyridone amide KSK213 allowed normal growth and development of C. trachomatis and the effect was only observable upon re-infection of new cells. Progeny elementary bodies (EBs) produced in the presence of KSK213 were unable to activate transcription of essential genes in early development and did not differentiate into the replicative form, the reticulate body (RB). The effect was specific to C. trachomatis since KSK213 was inactive in the closely related animal pathogen C. muridarum and in C. caviae The molecular target of KSK213 may thus be different in C. trachomatis or non-essential in C. muridarum and C. caviae Resistance to KSK213 was mediated by a combination of amino acid substitutions in both DEAD/DEAH RNA helicase and RNAse III, which may indicate inhibition of the transcriptional machinery as the mode of action. 2-pyridone amides provide a novel antibacterial strategy and starting points for development of highly specific drugs for C. trachomatis infections.
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18
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Inhibitory Activity of Pyrroloisoxazolidine Derivatives against Chlamydia trachomatis. BIOMED RESEARCH INTERNATIONAL 2021; 2021:8889247. [PMID: 33791384 PMCID: PMC7984888 DOI: 10.1155/2021/8889247] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/01/2020] [Revised: 01/26/2021] [Accepted: 03/01/2021] [Indexed: 11/18/2022]
Abstract
The obligate intracellular bacterium Chlamydia trachomatis is a group of worldwide human pathogens that can lead to serious reproductive problems. The frequent clinical treatment failure promoted the development of novel antichlamydial agents. Here, we firstly reported a group of pyrroloisoxazolidine-inhibited C. trachomatis in a dose-dependent manner in vitro. Among them, compounds 1 and 2 exhibited the strongest inhibitory activity with IC50 values from 7.25 to 9.73 μM. The compounds disturbed the whole intracellular life cycle of C. trachomatis, mainly targeting the middle reticulate body proliferation stages. Besides, the compounds partially inhibited the chlamydial infection by reducing elementary body infectivity at high concentration. Our findings suggest the potential of pyrroloisoxazolidine derivatives as promising lead molecules for the development of antichlamydial agents.
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19
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Chithanna S, Yang DY. Construction of 2-pyridones via oxidative cyclization of enamides: access to Pechmann dye derivatives. Org Biomol Chem 2021; 19:1565-1574. [PMID: 33508055 DOI: 10.1039/d0ob02376k] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
An efficient protocol for the construction of structurally diverse 2-pyridone derivatives from imines and α,β-unsaturated acid chlorides in a single operation is reported. The target compounds, including coumarin-8-oxoprotoberbine analogues and lamellarin G isomers, were prepared via thermal cyclization of the in situ generated enamides followed by thermal dehydrogenation. The cyclization of enamides was achieved by the introduction of an electron-withdrawing group on the α-carbon of acid chlorides. This methodology allows quick access to polycyclic Pechmann dyes via rare double oxidative cyclizations of dienamides under mild conditions.
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Affiliation(s)
- Sivanna Chithanna
- Department of Chemistry, Tunghai University, No. 1727, Sec. 4, Taiwan Boulevard, Xitun District, Taichung 407224, Taiwan.
| | - Ding-Yah Yang
- Department of Chemistry, Tunghai University, No. 1727, Sec. 4, Taiwan Boulevard, Xitun District, Taichung 407224, Taiwan. and Graduate Program for Biomedical and Materials Science, Tunghai University, No. 1727, Sec. 4, Taiwan Boulevard, Xitun District, Taichung 407224, Taiwan
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20
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Fayed EA, Bayoumi AH, Saleh AS, Ezz Al-Arab EM, Ammar YA. In vivo and in vitro anti-inflammatory, antipyretic and ulcerogenic activities of pyridone and chromenopyridone derivatives, physicochemical and pharmacokinetic studies. Bioorg Chem 2021; 109:104742. [PMID: 33647742 DOI: 10.1016/j.bioorg.2021.104742] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2020] [Revised: 02/05/2021] [Accepted: 02/09/2021] [Indexed: 01/07/2023]
Abstract
Throughout this study, we present the victorious synthesis of a novel class of 2(1H)-pyridone molecules, bearing a 4-hydroxyphenyl moiety through a one-pot reaction of 2-cyano-N-(4-hydroxyphenyl)acetamide with cyanoacetamide, acetylacetone or ethyl acetoacetate, and their corresponding aldehydes. In addition, the chromene moiety was introduced into the pyridine skeleton through the cyclization of the cyanoacetamide 2 with salicylaldehyde, followed by treatment with malononitrile, ethyl cyanoacetate, and cyanoacetamide, in order to improve their biological behaviour. Due to their anti-inflammatory, ulcerogenic, and antipyretic characters, the target molecules have undergone in-vitro and in-vivo examination, that display promising results. Moreover, in order to predict the physicochemical and ADME traits of all synthesized compounds and standard reference drugs, paracetamol and phenylbutazone, the in-silico prediction methodology was provided.
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Affiliation(s)
- Eman A Fayed
- Pharmaceutical Organic Chemistry Department, Faculty of Pharmacy (Girls), Al-Azhar University, Cairo 11754, Egypt.
| | - Ashraf H Bayoumi
- Pharmaceutical Organic Chemistry Department, Faculty of Pharmacy (Boys), Al-Azhar University, Cairo 11754, Egypt
| | - Aya S Saleh
- National Organization for Drug Control and Research, Cairo, Egypt
| | | | - Yousry A Ammar
- Chemistry Department, Faculty of Science (Boys), Al-Azhar University, Cairo 11754, Egypt.
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21
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Xu Q, Liang P, Lu H, Jin S, Dong Y, Zhang J. Design, Synthesis and Bioactivity of Fluopyram Derivatives Containing Diamide Moiety. CHINESE J ORG CHEM 2021. [DOI: 10.6023/cjoc202103021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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22
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Xu G, Shao Y, Tang S, Chen Q, Sun J. Dearomative Migratory Rearrangement of 2-Oxypyridines Enabled by α-Imino Rhodium Carbene. Org Lett 2020; 22:9303-9307. [DOI: 10.1021/acs.orglett.0c03533] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Guangyang Xu
- Jiangsu Key Laboratory of Advanced Catalytic Materials & Technology, School of Petrochemical Engineering, Changzhou University, Changzhou 213164, China
| | - Ying Shao
- Jiangsu Key Laboratory of Advanced Catalytic Materials & Technology, School of Petrochemical Engineering, Changzhou University, Changzhou 213164, China
| | - Shengbiao Tang
- Jiangsu Key Laboratory of Advanced Catalytic Materials & Technology, School of Petrochemical Engineering, Changzhou University, Changzhou 213164, China
| | - Qun Chen
- Jiangsu Key Laboratory of Advanced Catalytic Materials & Technology, School of Petrochemical Engineering, Changzhou University, Changzhou 213164, China
| | - Jiangtao Sun
- Jiangsu Key Laboratory of Advanced Catalytic Materials & Technology, School of Petrochemical Engineering, Changzhou University, Changzhou 213164, China
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23
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Seleem MA, Rodrigues de Almeida N, Chhonker YS, Murry DJ, Guterres ZDR, Blocker AM, Kuwabara S, Fisher DJ, Leal ES, Martinefski MR, Bollini M, Monge ME, Ouellette SP, Conda-Sheridan M. Synthesis and Antichlamydial Activity of Molecules Based on Dysregulators of Cylindrical Proteases. J Med Chem 2020; 63:4370-4387. [PMID: 32227948 DOI: 10.1021/acs.jmedchem.0c00371] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
Chlamydia trachomatis is the most common sexually transmitted bacterial disease globally and the leading cause of infertility and preventable infectious blindness (trachoma) in the world. Unfortunately, there is no FDA-approved treatment specific for chlamydial infections. We recently reported two sulfonylpyridines that halt the growth of the pathogen. Herein, we present a SAR of the sulfonylpyridine molecule by introducing substituents on the aromatic regions. Biological evaluation studies showed that several analogues can impair the growth of C. trachomatis without affecting host cell viability. The compounds did not kill other bacteria, indicating selectivity for Chlamydia. The compounds presented mild toxicity toward mammalian cell lines. The compounds were found to be nonmutagenic in a Drosophila melanogaster assay and exhibited a promising stability in both plasma and gastric fluid. The presented results indicate this scaffold is a promising starting point for the development of selective antichlamydial drugs.
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Affiliation(s)
- Mohamed A Seleem
- Department of Pharmaceutical Sciences, College of Pharmacy, University of Nebraska Medical Center, Omaha, Nebraska 68198, United States
| | - Nathalia Rodrigues de Almeida
- Department of Chemistry, College of Arts and Sciences, University of Nebraska at Omaha, Omaha, Nebraska 68182, United States
| | - Yashpal Singh Chhonker
- Clinical Pharmacology Laboratory, Department of Pharmacy Practice and Science, College of Pharmacy, University of Nebraska Medical Center, Omaha, Nebraska 68198, United States
| | - Daryl J Murry
- Clinical Pharmacology Laboratory, Department of Pharmacy Practice and Science, College of Pharmacy, University of Nebraska Medical Center, Omaha, Nebraska 68198, United States
| | - Zaira da Rosa Guterres
- Laboratory of Cytogenetics and Mutagenesis, State University of Mato Grosso do Sul, Mundo Novo, Matto Grasso do Sul, Brazil
| | - Amanda M Blocker
- School of Biological Sciences, Southern Illinois University Carbondale, Carbondale, Illinois 62901, United States
| | - Shiomi Kuwabara
- School of Biological Sciences, Southern Illinois University Carbondale, Carbondale, Illinois 62901, United States
| | - Derek J Fisher
- School of Biological Sciences, Southern Illinois University Carbondale, Carbondale, Illinois 62901, United States
| | - Emilse S Leal
- Centro de Investigaciones en BioNanociencias (CIBION), Consejo Nacional de Investigaciones Cientı́ficas y Técnicas (CONICET), Godoy Cruz, 2390 Ciudad de Buenos Aires, Argentina
| | - Manuela R Martinefski
- Centro de Investigaciones en BioNanociencias (CIBION), Consejo Nacional de Investigaciones Cientı́ficas y Técnicas (CONICET), Godoy Cruz, 2390 Ciudad de Buenos Aires, Argentina
| | - Mariela Bollini
- Centro de Investigaciones en BioNanociencias (CIBION), Consejo Nacional de Investigaciones Cientı́ficas y Técnicas (CONICET), Godoy Cruz, 2390 Ciudad de Buenos Aires, Argentina
| | - María Eugenia Monge
- Centro de Investigaciones en BioNanociencias (CIBION), Consejo Nacional de Investigaciones Cientı́ficas y Técnicas (CONICET), Godoy Cruz, 2390 Ciudad de Buenos Aires, Argentina
| | - Scot P Ouellette
- Department of Pathology and Microbiology, College of Medicine, University of Nebraska Medical Center, Omaha, Nebraska 68198, United States
| | - Martin Conda-Sheridan
- Department of Pharmaceutical Sciences, College of Pharmacy, University of Nebraska Medical Center, Omaha, Nebraska 68198, United States
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24
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Kulén M, Núñez-Otero C, Cairns AG, Silver J, Lindgren AEG, Wede E, Singh P, Vielfort K, Bahnan W, Good JAD, Svensson R, Bergström S, Gylfe Å, Almqvist F. Methyl sulfonamide substituents improve the pharmacokinetic properties of bicyclic 2-pyridone based Chlamydia trachomatis inhibitors. MEDCHEMCOMM 2019; 10:1966-1987. [PMID: 32206238 PMCID: PMC7069368 DOI: 10.1039/c9md00405j] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/20/2019] [Accepted: 09/20/2019] [Indexed: 01/03/2023]
Abstract
Methyl sulfonamide substituents effectively improve the pharmacokinetic properties of bicyclic 2-pyridones, a new class of Chlamydia trachomatis infectivity inhibitors.
Chlamydia trachomatis infections are a global health problem and new approaches to treat C. trachomatis with drugs of high specificity would be valuable. A library of substituted ring fused 2-pyridones has been synthesized and evaluated for their ability to attenuate C. trachomatis infectivity. In vivo pharmacokinetic studies were performed, with the best candidates demonstrating that a C8-methylsulfonamide substituent improved pharmacokinetic properties important for oral administration. C8-Methyl sulfonamide analogue 30 inhibited C. trachomatis infectivity in low micromolar concentrations. Further pharmacokinetic evaluation at an oral dose of 10 mg kg–1 showed an apparent bioavailability of 41%, compared to C8-cyclopropyl and -methoxy analogues which had negligible oral uptake. In vitro ADME (absorption, distribution, metabolism and excretion) testing of solubility and Caco-2 cell permeability revealed that both solubility and permeability is greatly improved with the C8-methyl sulfonamide 30, effectively moving it from BCS (Biopharmaceutical Classification System) class IV to II.
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Affiliation(s)
- Martina Kulén
- Department of Chemistry , Umeå University , 901 87 Umeå , Sweden . .,Umeå Centre for Microbial Research , Umeå University , 901 87 Umeå , Sweden . ;
| | - Carlos Núñez-Otero
- Umeå Centre for Microbial Research , Umeå University , 901 87 Umeå , Sweden . ; .,Laboratory for Molecular Infection Medicine Sweden (MIMS) , Umeå University , 901 87 Umeå , Sweden.,Department of Clinical microbiology , Umeå University , 901 85 Umeå , Sweden
| | - Andrew G Cairns
- Department of Chemistry , Umeå University , 901 87 Umeå , Sweden . .,Umeå Centre for Microbial Research , Umeå University , 901 87 Umeå , Sweden . ;
| | - Jim Silver
- Umeå Centre for Microbial Research , Umeå University , 901 87 Umeå , Sweden . ; .,Department of Molecular Biology , Umeå University , 901 87 Umeå , Sweden.,Laboratory for Molecular Infection Medicine Sweden (MIMS) , Umeå University , 901 87 Umeå , Sweden
| | - Anders E G Lindgren
- Department of Chemistry , Umeå University , 901 87 Umeå , Sweden . .,Umeå Centre for Microbial Research , Umeå University , 901 87 Umeå , Sweden . ;
| | - Emma Wede
- Umeå Centre for Microbial Research , Umeå University , 901 87 Umeå , Sweden . ; .,Department of Molecular Biology , Umeå University , 901 87 Umeå , Sweden.,Laboratory for Molecular Infection Medicine Sweden (MIMS) , Umeå University , 901 87 Umeå , Sweden
| | - Pardeep Singh
- Department of Chemistry , Umeå University , 901 87 Umeå , Sweden . .,Umeå Centre for Microbial Research , Umeå University , 901 87 Umeå , Sweden . ;
| | - Katarina Vielfort
- Umeå Centre for Microbial Research , Umeå University , 901 87 Umeå , Sweden . ; .,Department of Molecular Biology , Umeå University , 901 87 Umeå , Sweden.,Laboratory for Molecular Infection Medicine Sweden (MIMS) , Umeå University , 901 87 Umeå , Sweden
| | - Wael Bahnan
- Umeå Centre for Microbial Research , Umeå University , 901 87 Umeå , Sweden . ; .,Department of Molecular Biology , Umeå University , 901 87 Umeå , Sweden.,Laboratory for Molecular Infection Medicine Sweden (MIMS) , Umeå University , 901 87 Umeå , Sweden
| | - James A D Good
- Department of Chemistry , Umeå University , 901 87 Umeå , Sweden . .,Umeå Centre for Microbial Research , Umeå University , 901 87 Umeå , Sweden . ;
| | - Richard Svensson
- The Uppsala University Drug Optimization and Pharmaceutical Profiling Platform , Department of Pharmacy , Uppsala University , SE-751 23 Uppsala , Sweden.,SciLifeLab Drug Discovery and Development Platform , ADME of Therapeutics Facility , Uppsala University , SE-751 23 Uppsala , Sweden
| | - Sven Bergström
- Umeå Centre for Microbial Research , Umeå University , 901 87 Umeå , Sweden . ; .,Department of Molecular Biology , Umeå University , 901 87 Umeå , Sweden.,Laboratory for Molecular Infection Medicine Sweden (MIMS) , Umeå University , 901 87 Umeå , Sweden
| | - Åsa Gylfe
- Umeå Centre for Microbial Research , Umeå University , 901 87 Umeå , Sweden . ; .,Laboratory for Molecular Infection Medicine Sweden (MIMS) , Umeå University , 901 87 Umeå , Sweden.,Department of Clinical microbiology , Umeå University , 901 85 Umeå , Sweden
| | - Fredrik Almqvist
- Department of Chemistry , Umeå University , 901 87 Umeå , Sweden . .,Umeå Centre for Microbial Research , Umeå University , 901 87 Umeå , Sweden . ;
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25
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Singh P, Cairns AG, Adolfsson DE, Ådén J, Sauer UH, Almqvist F. Synthesis of Densely Functionalized N-Alkenyl 2-Pyridones via Benzyne-Induced Ring Opening of Thiazolino-Fused 2-Pyridones. Org Lett 2019; 21:6946-6950. [PMID: 31419146 DOI: 10.1021/acs.orglett.9b02549] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
We report the synthesis of 6-arylthio-substituted-N-alkenyl 2-pyridones by ring opening of bicyclic thiazolino-2-pyridones with arynes. Varied functionalization was used to investigate scope and substituent influences on reactivity. Selected conditions favor thioether ring opening over [4 + 2] cycloaddition and an unusual aryne incorporating ring expansion. Deuterium labeling was used to clarify observed reactivity. Using the knowledge, we produced drug-like molecules with complex substitution patterns and show how thioether ring opening can be used on scaffolds with competing reactivities.
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Affiliation(s)
- Pardeep Singh
- Department of Chemistry, Umeå University, 90187 Umeå, Sweden
| | - Andrew G Cairns
- Department of Chemistry, Umeå University, 90187 Umeå, Sweden
| | - Dan E Adolfsson
- Department of Chemistry, Umeå University, 90187 Umeå, Sweden
| | - Jörgen Ådén
- Department of Chemistry, Umeå University, 90187 Umeå, Sweden
| | - Uwe H Sauer
- Department of Chemistry, Umeå University, 90187 Umeå, Sweden
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26
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Huang J, Hu G, An S, Chen D, Li M, Li P. Synthesis of N-Alkylpyridin-4-ones and Thiazolo[3,2- a]pyridin-5-ones through Pummerer-Type Reactions. J Org Chem 2019; 84:9758-9769. [PMID: 31290663 DOI: 10.1021/acs.joc.9b01672] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
N-Alkylated 4-pyridones were obtained through a one-pot procedure involving either normal or interrupted Pummerer reactions between triflic anhydride-activated sulfoxides and 4-fluoropyridine derivatives, followed by hydrolysis. On the other hand, triflic anhydride-activated benzyl 6-fluoro-2-pyridyl sulfoxide could react with alkenes or alkynes to afford thiazolo[3,2-a]pyridin-5-ones, via the pyridinium salt intermediates.
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Affiliation(s)
- Jingjia Huang
- State Key Laboratory of Chemical Resource Engineering, Department of Organic Chemistry, Faculty of Science , Beijing University of Chemical Technology , Beijing 100029 , China
| | - Gang Hu
- State Key Laboratory of Chemical Resource Engineering, Department of Organic Chemistry, Faculty of Science , Beijing University of Chemical Technology , Beijing 100029 , China.,Department of Chemistry , Baotou Teacher's College , Baotou 014030 , China
| | - Shaoyu An
- State Key Laboratory of Chemical Resource Engineering, Department of Organic Chemistry, Faculty of Science , Beijing University of Chemical Technology , Beijing 100029 , China
| | - Dongding Chen
- State Key Laboratory of Chemical Resource Engineering, Department of Organic Chemistry, Faculty of Science , Beijing University of Chemical Technology , Beijing 100029 , China
| | - Minglei Li
- State Key Laboratory of Chemical Resource Engineering, Department of Organic Chemistry, Faculty of Science , Beijing University of Chemical Technology , Beijing 100029 , China
| | - Pingfan Li
- State Key Laboratory of Chemical Resource Engineering, Department of Organic Chemistry, Faculty of Science , Beijing University of Chemical Technology , Beijing 100029 , China
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27
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Mozaffari M, Nowrouzi N, Abbasi M. The use of Cr (CO)
6
as an alternative CO source in Pd‐catalyzed C‐N bond formation: Synthesis of benzamides. Appl Organomet Chem 2019. [DOI: 10.1002/aoc.5049] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Mozhdeh Mozaffari
- Department of Chemistry, Faculty of SciencesPersian Gulf University Bushehr 75169 Iran
| | - Najmeh Nowrouzi
- Department of Chemistry, Faculty of SciencesPersian Gulf University Bushehr 75169 Iran
| | - Mohammad Abbasi
- Department of Chemistry, Faculty of SciencesPersian Gulf University Bushehr 75169 Iran
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28
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Singh P, Adolfsson DE, Ådén J, Cairns AG, Bartens C, Brännström K, Olofsson A, Almqvist F. Pyridine-Fused 2-Pyridones via Povarov and A3 Reactions: Rapid Generation of Highly Functionalized Tricyclic Heterocycles Capable of Amyloid Fibril Binding. J Org Chem 2019; 84:3887-3903. [DOI: 10.1021/acs.joc.8b03015] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Affiliation(s)
| | | | | | | | - Christian Bartens
- Institute of Organic Chemistry and Center of Biomolecular Drug Research (BMWZ), Leibniz Universität Hannover, Schneiderberg 1b, Hannover 30167, Germany
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29
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Mojica SA, Eriksson AU, Davis RA, Bahnan W, Elofsson M, Gylfe Å. Red Fluorescent Chlamydia trachomatis Applied to Live Cell Imaging and Screening for Antibacterial Agents. Front Microbiol 2019; 9:3151. [PMID: 30619216 PMCID: PMC6305398 DOI: 10.3389/fmicb.2018.03151] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2018] [Accepted: 12/05/2018] [Indexed: 11/13/2022] Open
Abstract
In this study, we describe the application of a transformed Chlamydia trachomatis strain constitutively expressing the red fluorescent protein mCherry, to allow real-time monitoring of the infection cycle and screening for agents that block replication of C. trachomatis. The red fluorescent C. trachomatis strain was detected autonomously without antibody staining and was equally susceptible to doxycycline as the wild type strain. A high-throughput screening assay was developed using the transformed strain and automated fluorescence microscopy. The assay was used in a pilot screen of a 349 compound library containing natural products from Australian flora and fauna. Compounds with anti-chlamydial activity were tested for dose response and toxicity to host cells and two non-toxic compounds had 50% effective concentration (EC50) values in the low micromolar range. Natural products are valuable sources for drug discovery and the identified Chlamydia growth inhibition may be starting points for future drug development. Live cell imaging was used to visualize growth of the red fluorescent C. trachomatis strain over time. The screening assay reduced workload and reagents compared to an assay requiring immunostaining and could further be used to monitor the development of Chlamydia inclusions and anti-chlamydial effect in real time.
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Affiliation(s)
- Sergio A Mojica
- Department of Clinical Microbiology, Umeå University, Umeå, Sweden
| | - Anna U Eriksson
- Chemical Biology Consortium Sweden, Laboratories of Chemical Biology, Umeå University, Umeå, Sweden
| | - Rohan A Davis
- Griffith Institute for Drug Discovery, Griffith University, Brisbane, QLD, Australia
| | - Wael Bahnan
- Department of Molecular Biology, Umeå University, Umeå, Sweden
| | - Mikael Elofsson
- Department of Chemistry, Umeå University, Umeå, Sweden.,Molecular Infection Medicine Sweden, Umeå University, Umeå, Sweden.,Umeå Centre for Microbial Research, Umeå University, Umeå, Sweden
| | - Åsa Gylfe
- Department of Clinical Microbiology, Umeå University, Umeå, Sweden.,Molecular Infection Medicine Sweden, Umeå University, Umeå, Sweden.,Umeå Centre for Microbial Research, Umeå University, Umeå, Sweden
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30
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Xu G, Chen P, Liu P, Tang S, Zhang X, Sun J. Access to N-Substituted 2-Pyridones by Catalytic Intermolecular Dearomatization and 1,4-Acyl Transfer. Angew Chem Int Ed Engl 2018; 58:1980-1984. [DOI: 10.1002/anie.201812937] [Citation(s) in RCA: 37] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2018] [Revised: 12/04/2018] [Indexed: 11/08/2022]
Affiliation(s)
- Guangyang Xu
- Jiangsu Key Laboratory of Advanced Catalytic Materials & Technology; School of Petrochemical Engineering; Changzhou University; 1 Gehu Road 213164 Changzhou China
| | - Ping Chen
- Lab of Computational Chemistry and Drug Design; State Key Laboratory of Chemical Oncogeomics; Peking University Shenzhen Graduate School; Shenzhen 518055 China
| | - Pei Liu
- Jiangsu Key Laboratory of Advanced Catalytic Materials & Technology; School of Petrochemical Engineering; Changzhou University; 1 Gehu Road 213164 Changzhou China
| | - Shengbiao Tang
- Jiangsu Key Laboratory of Advanced Catalytic Materials & Technology; School of Petrochemical Engineering; Changzhou University; 1 Gehu Road 213164 Changzhou China
| | - Xinhao Zhang
- Lab of Computational Chemistry and Drug Design; State Key Laboratory of Chemical Oncogeomics; Peking University Shenzhen Graduate School; Shenzhen 518055 China
| | - Jiangtao Sun
- Jiangsu Key Laboratory of Advanced Catalytic Materials & Technology; School of Petrochemical Engineering; Changzhou University; 1 Gehu Road 213164 Changzhou China
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Xu G, Chen P, Liu P, Tang S, Zhang X, Sun J. Access to N-Substituted 2-Pyridones by Catalytic Intermolecular Dearomatization and 1,4-Acyl Transfer. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201812937] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Guangyang Xu
- Jiangsu Key Laboratory of Advanced Catalytic Materials & Technology; School of Petrochemical Engineering; Changzhou University; 1 Gehu Road 213164 Changzhou China
| | - Ping Chen
- Lab of Computational Chemistry and Drug Design; State Key Laboratory of Chemical Oncogeomics; Peking University Shenzhen Graduate School; Shenzhen 518055 China
| | - Pei Liu
- Jiangsu Key Laboratory of Advanced Catalytic Materials & Technology; School of Petrochemical Engineering; Changzhou University; 1 Gehu Road 213164 Changzhou China
| | - Shengbiao Tang
- Jiangsu Key Laboratory of Advanced Catalytic Materials & Technology; School of Petrochemical Engineering; Changzhou University; 1 Gehu Road 213164 Changzhou China
| | - Xinhao Zhang
- Lab of Computational Chemistry and Drug Design; State Key Laboratory of Chemical Oncogeomics; Peking University Shenzhen Graduate School; Shenzhen 518055 China
| | - Jiangtao Sun
- Jiangsu Key Laboratory of Advanced Catalytic Materials & Technology; School of Petrochemical Engineering; Changzhou University; 1 Gehu Road 213164 Changzhou China
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Cairns AG, Vazquez-Romero A, Mahdi Moein M, Ådén J, Elmore CS, Takano A, Arakawa R, Varrone A, Almqvist F, Schou M. Increased Brain Exposure of an Alpha-Synuclein Fibrillization Modulator by Utilization of an Activated Ester Prodrug Strategy. ACS Chem Neurosci 2018; 9:2542-2547. [PMID: 29901990 DOI: 10.1021/acschemneuro.8b00236] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023] Open
Abstract
Previous work in our laboratories has identified a series of peptidomimetic 2-pyridone molecules as modulators of alpha-synuclein (α-syn) fibrillization in vitro. As a first step toward developing molecules from this scaffold as positron emission tomography imaging agents, we were interested in evaluating their blood-brain barrier permeability in nonhuman primates (NHP) in vivo. For this purpose, 2-pyridone 12 was prepared and found to accelerate α-syn fibrillization in vitro. Acid 12, and its acetoxymethyl ester analogue 14, were then radiolabeled with 11C ( t1/2 = 20.4 min) at high radiochemical purity (>99%) and high specific radioactivity (>37 GBq/μmol). Following intravenous injection of each compound in NHP, a 4-fold higher radioactivity in brain was observed for [11C]14 compared to [11C]12 (0.8 vs 0.2 SUV, respectively). [11C]14 was rapidly eliminated from plasma, with [11C]12 as the major metabolic product observed by radio-HPLC. The presented prodrug approach paves the way for future development of 2-pyridones as imaging biomarkers for in vivo imaging of α-synuclein deposits in brain.
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Affiliation(s)
| | - Ana Vazquez-Romero
- Department of Clinical Neuroscience, Center for Psychiatry Research, Karolinska Institutet and Stockholm County Council, SE-171 76 Stockholm, Sweden
| | - Mohammad Mahdi Moein
- Department of Clinical Neuroscience, Center for Psychiatry Research, Karolinska Institutet and Stockholm County Council, SE-171 76 Stockholm, Sweden
| | - Jörgen Ådén
- Department of Chemistry, Umeå University, 901 87 Umeå, Sweden
| | - Charles S. Elmore
- Isotope Chemistry, Pharmaceutical Sciences, IMED Biotech Unit, AstraZeneca, Gothenburg, Sweden
| | - Akihiro Takano
- Department of Clinical Neuroscience, Center for Psychiatry Research, Karolinska Institutet and Stockholm County Council, SE-171 76 Stockholm, Sweden
| | - Ryosuke Arakawa
- Department of Clinical Neuroscience, Center for Psychiatry Research, Karolinska Institutet and Stockholm County Council, SE-171 76 Stockholm, Sweden
| | - Andrea Varrone
- Department of Clinical Neuroscience, Center for Psychiatry Research, Karolinska Institutet and Stockholm County Council, SE-171 76 Stockholm, Sweden
| | | | - Magnus Schou
- Department of Clinical Neuroscience, Center for Psychiatry Research, Karolinska Institutet and Stockholm County Council, SE-171 76 Stockholm, Sweden
- PET Science Centre, Precision Medicine and Genomics, IMED Biotech Unit, AstraZeneca, Karolinska Institutet, S-171 76 Stockholm, Sweden
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Kulén M, Lindgren M, Hansen S, Cairns AG, Grundström C, Begum A, van der Lingen I, Brännström K, Hall M, Sauer UH, Johansson J, Sauer-Eriksson AE, Almqvist F. Structure-Based Design of Inhibitors Targeting PrfA, the Master Virulence Regulator of Listeria monocytogenes. J Med Chem 2018; 61:4165-4175. [PMID: 29667825 DOI: 10.1021/acs.jmedchem.8b00289] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Listeria monocytogenes is a bacterial pathogen that controls much of its virulence through the transcriptional regulator PrfA. In this study, we describe structure-guided design and synthesis of a set of PrfA inhibitors based on ring-fused 2-pyridone heterocycles. Our most effective compound decreased virulence factor expression, reduced bacterial uptake into eukaryotic cells, and improved survival of chicken embryos infected with L. monocytogenes compared to previously identified compounds. Crystal structures identified an intraprotein "tunnel" as the main inhibitor binding site (AI), where the compounds participate in an extensive hydrophobic network that restricts the protein's ability to form functional DNA-binding helix-turn-helix (HTH) motifs. Our studies also revealed a hitherto unsuspected structural plasticity of the HTH motif. In conclusion, we have designed 2-pyridone analogues that function as site-AI selective PrfA inhibitors with potent antivirulence properties.
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Ji H, Wu C, Ni M, Feng N, Wang C, Zhao Y, Liu L, Yang S, Bao X. In vitro Antichlamydial Activity of 1,2,3,5-Tetrasubstituted Pyrrole Derivatives. Chemotherapy 2018; 63:96-100. [PMID: 29649816 DOI: 10.1159/000487880] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2017] [Accepted: 02/22/2018] [Indexed: 12/19/2022]
Abstract
BACKGROUND Chlamydia is a group of bacterial pathogens distributed worldwide that can lead to serious reproductive and other health problems. The rise of antibiotic-resistant pathogens promotes the development of novel antichlamydial agents. The aim of this study is to assess in vitro antichlamydial activity of our previously synthesized 1,2,3,5- tetrasubstituted pyrroles. METHODS The derivatives were screened for their antichlamydial activity against three Chlamydia strains by calculating IC50 values using concentration-response inhibition data between 1 and 32 μM. The action of the compounds on Chlamydia elementary body (EB) infectivity and the impact of the chemicals' administration time on their antichlamydial effect were evaluated to reveal the inhibitory mechanism. RESULTS Some of the compounds moderately inhibited the Chlamydia strains. Compound 10 exhibited the strongest inhibitory activity, with IC50 values from 4.34 to 5.83 μM. These pyrrole derivatives inhibited Chlamydia infection by reducing EB infectivity during the early stage and disturbing Chlamydia growth by targeting the early-to-middle stage prior to 12 h of the chlamydial life cycle. CONCLUSION Our findings highlight the potential of 1,2,3,5-tetrasubstituted pyrrole derivatives as promising lead molecules for the development of antichlamydial agents.
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Affiliation(s)
- Hongzhang Ji
- School of Pharmacy, Nantong University, Nantong, China
| | - Changyue Wu
- School of Medicine, Nantong University, Nantong, China
| | - Min Ni
- School of Pharmacy, Nantong University, Nantong, China
| | - Nannan Feng
- School of Pharmacy, Nantong University, Nantong, China
| | - Chan Wang
- The State Key Laboratory of Elemento-Organic Chemistry, Nankai University, Tianjin, China
| | - Yu Zhao
- School of Pharmacy, Nantong University, Nantong, China
| | - Lingyan Liu
- The State Key Laboratory of Elemento-Organic Chemistry, Nankai University, Tianjin, China
| | - Shengju Yang
- Department of Dermatology and Venereology, Affiliated Hospital of Nantong University, Nantong, China
| | - Xiaofeng Bao
- School of Pharmacy, Nantong University, Nantong, China
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Chen H, Ni M, Bao X, Wang C, Liu L, Chang W, Li J. The Diverse Reactivity of Homopropargylic Amines as “Masked” 1C Synthons for the Aza-Friedel-Crafts Alkylation of Indoles. European J Org Chem 2018. [DOI: 10.1002/ejoc.201701523] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Affiliation(s)
- Hao Chen
- The State Key Laboratory and Institute of Elemento-Organic Chemistry; College of Chemistry; Nankai University; Weijin Road 94# 300071 Tianjin China
| | - Min Ni
- School of Pharmacy; Nantong University; 226001 Nantong China
| | - Xiaofeng Bao
- School of Pharmacy; Nantong University; 226001 Nantong China
| | - Chan Wang
- The State Key Laboratory and Institute of Elemento-Organic Chemistry; College of Chemistry; Nankai University; Weijin Road 94# 300071 Tianjin China
| | - Lingyan Liu
- The State Key Laboratory and Institute of Elemento-Organic Chemistry; College of Chemistry; Nankai University; Weijin Road 94# 300071 Tianjin China
| | - Weixing Chang
- The State Key Laboratory and Institute of Elemento-Organic Chemistry; College of Chemistry; Nankai University; Weijin Road 94# 300071 Tianjin China
| | - Jing Li
- The State Key Laboratory and Institute of Elemento-Organic Chemistry; College of Chemistry; Nankai University; Weijin Road 94# 300071 Tianjin China
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin); 300071 Tianjin China
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36
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Synthesis of 5-imino- and 5-oxothiazolo[3,2-a]pyridines (microreview). Chem Heterocycl Compd (N Y) 2018. [DOI: 10.1007/s10593-018-2192-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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37
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Natural product inspired library synthesis - Identification of 2,3-diarylbenzofuran and 2,3-dihydrobenzofuran based inhibitors of Chlamydia trachomatis. Eur J Med Chem 2018; 143:1077-1089. [DOI: 10.1016/j.ejmech.2017.11.099] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2017] [Revised: 11/23/2017] [Accepted: 11/29/2017] [Indexed: 01/17/2023]
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38
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Good JAD, Kulén M, Silver J, Krishnan KS, Bahnan W, Núñez-Otero C, Nilsson I, Wede E, de Groot E, Gylfe Å, Bergström S, Almqvist F. Thiazolino 2-Pyridone Amide Isosteres As Inhibitors of Chlamydia trachomatis Infectivity. J Med Chem 2017; 60:9393-9399. [DOI: 10.1021/acs.jmedchem.7b00716] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- James A. D. Good
- Department
of Chemistry, Umeå University, 901 87 Umeå, Sweden
- Umeå
Centre for Microbial Research, Umeå University, 901 87 Umeå, Sweden
| | - Martina Kulén
- Department
of Chemistry, Umeå University, 901 87 Umeå, Sweden
- Umeå
Centre for Microbial Research, Umeå University, 901 87 Umeå, Sweden
| | - Jim Silver
- Umeå
Centre for Microbial Research, Umeå University, 901 87 Umeå, Sweden
- Department
of Molecular Biology, Umeå University, 901 87 Umeå, Sweden
- Laboratory
for Molecular Infection Medicine Sweden (MIMS), Umeå University, 901 87 Umeå, Sweden
| | - K. Syam Krishnan
- Department
of Chemistry, Umeå University, 901 87 Umeå, Sweden
- Umeå
Centre for Microbial Research, Umeå University, 901 87 Umeå, Sweden
| | - Wael Bahnan
- Umeå
Centre for Microbial Research, Umeå University, 901 87 Umeå, Sweden
- Department
of Molecular Biology, Umeå University, 901 87 Umeå, Sweden
- Laboratory
for Molecular Infection Medicine Sweden (MIMS), Umeå University, 901 87 Umeå, Sweden
| | - Carlos Núñez-Otero
- Umeå
Centre for Microbial Research, Umeå University, 901 87 Umeå, Sweden
- Laboratory
for Molecular Infection Medicine Sweden (MIMS), Umeå University, 901 87 Umeå, Sweden
- Clinical
microbiology, Umeå University, 901 85 Umeå, Sweden
| | - Ingela Nilsson
- Umeå
Centre for Microbial Research, Umeå University, 901 87 Umeå, Sweden
- Department
of Molecular Biology, Umeå University, 901 87 Umeå, Sweden
- Laboratory
for Molecular Infection Medicine Sweden (MIMS), Umeå University, 901 87 Umeå, Sweden
| | - Emma Wede
- Umeå
Centre for Microbial Research, Umeå University, 901 87 Umeå, Sweden
- Department
of Molecular Biology, Umeå University, 901 87 Umeå, Sweden
- Laboratory
for Molecular Infection Medicine Sweden (MIMS), Umeå University, 901 87 Umeå, Sweden
| | - Esmee de Groot
- Umeå
Centre for Microbial Research, Umeå University, 901 87 Umeå, Sweden
- Department
of Molecular Biology, Umeå University, 901 87 Umeå, Sweden
- Laboratory
for Molecular Infection Medicine Sweden (MIMS), Umeå University, 901 87 Umeå, Sweden
| | - Åsa Gylfe
- Umeå
Centre for Microbial Research, Umeå University, 901 87 Umeå, Sweden
- Laboratory
for Molecular Infection Medicine Sweden (MIMS), Umeå University, 901 87 Umeå, Sweden
- Clinical
microbiology, Umeå University, 901 85 Umeå, Sweden
| | - Sven Bergström
- Umeå
Centre for Microbial Research, Umeå University, 901 87 Umeå, Sweden
- Department
of Molecular Biology, Umeå University, 901 87 Umeå, Sweden
- Laboratory
for Molecular Infection Medicine Sweden (MIMS), Umeå University, 901 87 Umeå, Sweden
| | - Fredrik Almqvist
- Department
of Chemistry, Umeå University, 901 87 Umeå, Sweden
- Umeå
Centre for Microbial Research, Umeå University, 901 87 Umeå, Sweden
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N-Acylated Derivatives of Sulfamethoxazole Block Chlamydia Fatty Acid Synthesis and Interact with FabF. Antimicrob Agents Chemother 2017; 61:AAC.00716-17. [PMID: 28784680 DOI: 10.1128/aac.00716-17] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2017] [Accepted: 07/28/2017] [Indexed: 12/24/2022] Open
Abstract
The type II fatty acid synthesis (FASII) pathway is essential for bacterial lipid biosynthesis and continues to be a promising target for novel antibacterial compounds. Recently, it has been demonstrated that Chlamydia is capable of FASII and this pathway is indispensable for Chlamydia growth. Previously, a high-content screen with Chlamydia trachomatis-infected cells was performed, and acylated sulfonamides were identified to be potent growth inhibitors of the bacteria. C. trachomatis strains resistant to acylated sulfonamides were isolated by serial passage of a wild-type strain in the presence of low compound concentrations. Results from whole-genome sequencing of 10 isolates from two independent drug-resistant populations revealed that mutations that accumulated in fabF were predominant. Studies of the interaction between the FabF protein and small molecules showed that acylated sulfonamides directly bind to recombinant FabF in vitro and treatment of C. trachomatis-infected HeLa cells with the compounds leads to a decrease in the synthesis of Chlamydia fatty acids. This work demonstrates the importance of FASII for Chlamydia development and may lead to the development of new antimicrobials.
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40
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An improved synthesis of 3-[3-(trifluoromethyl)-3H-1,2-diazirin-3-yl]aniline: A key intermediate in the synthesis of photoaffinity probes. Tetrahedron Lett 2017. [DOI: 10.1016/j.tetlet.2017.07.031] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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41
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Cui SS, Huang R, Luo DY, Yan SJ, Lin J. Selective Synthesis of Highly Functionalized Bicyclic Pyridinone and 1,3-Oxazinane Derivatives. European J Org Chem 2017. [DOI: 10.1002/ejoc.201700283] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Shi-Sheng Cui
- Key Laboratory of Medicinal Chemistry for Natural Resource (Yunnan University); Ministry of Education; School of Chemical Science and Technology; Yunnan University; 650091 Kunming P. R. China
| | - Rong Huang
- Key Laboratory of Medicinal Chemistry for Natural Resource (Yunnan University); Ministry of Education; School of Chemical Science and Technology; Yunnan University; 650091 Kunming P. R. China
| | - Da-Yun Luo
- Key Laboratory of Medicinal Chemistry for Natural Resource (Yunnan University); Ministry of Education; School of Chemical Science and Technology; Yunnan University; 650091 Kunming P. R. China
| | - Sheng-Jiao Yan
- Key Laboratory of Medicinal Chemistry for Natural Resource (Yunnan University); Ministry of Education; School of Chemical Science and Technology; Yunnan University; 650091 Kunming P. R. China
| | - Jun Lin
- Key Laboratory of Medicinal Chemistry for Natural Resource (Yunnan University); Ministry of Education; School of Chemical Science and Technology; Yunnan University; 650091 Kunming P. R. China
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42
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Wang PY, Shao WB, Xue HT, Fang HS, Zhou J, Wu ZB, Song BA, Yang S. Synthesis of novel 1,3,4-oxadiazole derivatives containing diamides as promising antibacterial and antiviral agents. RESEARCH ON CHEMICAL INTERMEDIATES 2017. [DOI: 10.1007/s11164-017-2980-x] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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43
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Kumar R, Gaurav A, Pal S, Kumar KR, Sridhar B, Tewari AK. Reverse Intramolecular Stacking in o-Xylene Bridge Symmetrical Dimers of 2-Thiopyridine Derivative: Assessment of the Conformational Stability. ChemistrySelect 2017. [DOI: 10.1002/slct.201700269] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Ranjeet Kumar
- Department of Chemistry (Centre of Advanced Studies); Institute of Science; Banaras Hindu University; Varanasi 221005 India
| | - Archana Gaurav
- Department of Chemistry (Centre of Advanced Studies); Institute of Science; Banaras Hindu University; Varanasi 221005 India
| | - Shiv Pal
- Indian Institute of Science Education and Research, Pune; Dr. Homi Bhabha Road, Pashan Pune 411008 India
| | - Krishnan R. Kumar
- Laboratory of X-ray Crystallography; Indian Institute of Chemical Technology; Hyderabad 500 607 India
| | - Balasubramanian Sridhar
- Laboratory of X-ray Crystallography; Indian Institute of Chemical Technology; Hyderabad 500 607 India
| | - Ashish K. Tewari
- Department of Chemistry (Centre of Advanced Studies); Institute of Science; Banaras Hindu University; Varanasi 221005 India
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Chen C, Liu W, Zhou P. TBHP-mediated highly efficient dehydrogenative cross-oxidative coupling of methylarenes with acetanilides. Beilstein J Org Chem 2017; 12:2250-2255. [PMID: 28144291 PMCID: PMC5238673 DOI: 10.3762/bjoc.12.217] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2016] [Accepted: 10/11/2016] [Indexed: 11/23/2022] Open
Abstract
A TBHP-mediated dehydrogenative cross-oxidative-coupling approach has been developed for the synthesis of N-arylbenzamides from methylarenes and acetanilides. This cross-coupling method is free of transition metal catalysts and ligands, and no extra organic solvents are required, which make it an useful and attractive strategy for the straightforward construction of C–N bonds. Besides, this conversion is an important complement to the conventional C–N forming strategies.
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Affiliation(s)
- Cui Chen
- College of Chemical Engineering, Guangdong University of Petrochemical Technology, 2 Guandu Road, Maoming 525000, P. R. China. ; Tel: +86-668-2923444
| | - Weibing Liu
- College of Chemical Engineering, Guangdong University of Petrochemical Technology, 2 Guandu Road, Maoming 525000, P. R. China. ; Tel: +86-668-2923444
| | - Peng Zhou
- College of Chemical Engineering, Guangdong University of Petrochemical Technology, 2 Guandu Road, Maoming 525000, P. R. China. ; Tel: +86-668-2923444
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45
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Li B, Lin X, Zhang Y, Zhang D, Xiao Y, Lin F. Synthesis and characterization of novel N-phenylacetamide bearing 1,2,4-triazole derivatives as potential antimicrobial agents. Chem Res Chin Univ 2017. [DOI: 10.1007/s40242-017-6327-3] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
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46
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Du XX, Huang R, Yang CL, Lin J, Yan SJ. Synthesis and evaluation of the antitumor activity of highly functionalised pyridin-2-ones and pyrimidin-4-ones. RSC Adv 2017. [DOI: 10.1039/c7ra06466g] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
The methods for selective synthesis of two novel types of compounds including pyridin-2-ones 3 and pyrimidin-4-ones 4 were developed. The antitumor bioactivity screening showed that certain compounds had potent antitumor activity.
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Affiliation(s)
- Xuan-Xuan Du
- Key Laboratory of Medicinal Chemistry for Natural Resource (Yunnan University)
- Ministry of Education
- School of Chemical Science and Technology
- Yunnan University
- Kunming
| | - Rong Huang
- Key Laboratory of Medicinal Chemistry for Natural Resource (Yunnan University)
- Ministry of Education
- School of Chemical Science and Technology
- Yunnan University
- Kunming
| | - Chang-Long Yang
- Key Laboratory of Medicinal Chemistry for Natural Resource (Yunnan University)
- Ministry of Education
- School of Chemical Science and Technology
- Yunnan University
- Kunming
| | - Jun Lin
- Key Laboratory of Medicinal Chemistry for Natural Resource (Yunnan University)
- Ministry of Education
- School of Chemical Science and Technology
- Yunnan University
- Kunming
| | - Sheng-Jiao Yan
- Key Laboratory of Medicinal Chemistry for Natural Resource (Yunnan University)
- Ministry of Education
- School of Chemical Science and Technology
- Yunnan University
- Kunming
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47
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Diaz Ropero BPF, Elsegood MRJ, Fairley G, Pritchard GJ, Weaver GW. Pyridone Functionalization: Regioselective Deprotonation of 6-Methylpyridin-2(1H)- and -4(1H)-one Derivatives. European J Org Chem 2016. [DOI: 10.1002/ejoc.201601156] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
| | | | - Gary Fairley
- Darwin Building (310), Cambridge Science Park; AstraZeneca R&D
- Oncology iMed; Milton Road CB4 0WG Cambridge UK
| | | | - George W. Weaver
- Department of Chemistry; Loughborough University; LE11 3TU Loughborough UK
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48
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Liu J, Yan SJ, Cao ZM, Cui SS, Lin J. Synthesis of bicyclic 2-pyridones by regioselective annulations of heterocyclic ketene aminals with anhydrides. RSC Adv 2016. [DOI: 10.1039/c6ra23451h] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
An efficient strategy for the synthesis of substituted bicyclic 2-pyridones is developed. The proposed approach is based on the regioselective N-acylation of heterocyclic ketene aminals (HKAs) with methacrylic anhydride or crotonic anhydride.
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Affiliation(s)
- Jin Liu
- Key Laboratory of Medicinal Chemistry for Natural Resource (Yunnan University)
- Ministry Education
- School of Chemical Science and Technology
- Yunnan University
- Kunming
| | - Sheng-Jiao Yan
- Key Laboratory of Medicinal Chemistry for Natural Resource (Yunnan University)
- Ministry Education
- School of Chemical Science and Technology
- Yunnan University
- Kunming
| | - Zheng-Mao Cao
- Key Laboratory of Medicinal Chemistry for Natural Resource (Yunnan University)
- Ministry Education
- School of Chemical Science and Technology
- Yunnan University
- Kunming
| | - Shi-Sheng Cui
- Key Laboratory of Medicinal Chemistry for Natural Resource (Yunnan University)
- Ministry Education
- School of Chemical Science and Technology
- Yunnan University
- Kunming
| | - Jun Lin
- Key Laboratory of Medicinal Chemistry for Natural Resource (Yunnan University)
- Ministry Education
- School of Chemical Science and Technology
- Yunnan University
- Kunming
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