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Showing 1-20 of 1,493 results
  1. Microwave-Assisted Synthesis and Functionalization of 2-Pyridones, 2-Quinolones and Other Ring-Fused 2-Pyridones

    2-pyridones are important heterocycles with great applicability in medicinal chemistry and this core structure can be found in compounds with...
    Nils Pemberton, Erik Chorell, Fredrik Almqvist in Microwave-Assisted Synthesis of Heterocycles
    Chapter
  2. Simultaneous determination of four quinolones in honey by nickel/aluminum-layered double hydroxide-based air-assisted dispersive solid-phase extraction and high-performance liquid chromatography

    A novel air-assisted dispersive solid-phase extraction method based on nickel/aluminum-layered double hydroxides combined with high performance...

    Tian Liu, Ling Ma, ... Yi Yang in Journal of Food Measurement and Characterization
    Article 29 August 2022
  3. Ionic liquid-based dispersive liquid–liquid microextraction followed by magnetic solid-phase extraction for determination of quinolones

    An ionic liquid-based dispersive liquid–liquid microextraction (IL-DLLME) combined with magnetic solid-phase extraction (MSPE) was developed for...

    Jiawei Hong, **aomei Liu, ... Longshan Zhao in Microchimica Acta
    Article 04 December 2021
  4. Sorption-Fluorimetric Determination of Quinolones in Waste and Natural Waters with a Smartphone

    Abstract

    A simple, affordable, and safe (green chemistry) method is proposed for determining 17 quinolone antibiotics in waste and natural waters by...

    V. G. Amelin, Z. A. Ch. Shogah, D. S. Bolshakov in Moscow University Chemistry Bulletin
    Article 01 July 2021
  5. Facile synthesis of new pyrano[3,2-c]quinolones via the reaction of quinolin-2-ones with ethene-1,2,3,4-tetracarbonitrile

    Synthesis of heteroannulated pyrano[3,2- c ]quinolones was established starting from the reaction of 4-hydroxyquinolin-2-ones with...

    Ashraf A. Aly, Hisham A. Abd El-Naby, ... Lamiaa E. Abd El-Haleem in Monatshefte für Chemie - Chemical Monthly
    Article 03 March 2022
  6. Design, Synthesis, SAR, Pharmacokinetic Prediction of New 4-Quinolones as Anti-Microbial Agents

    Abstract

    s of new 4-quinolone derivatives was synthesized by conventional heating method. For the synthesized compounds, we performed pharmacokinetic...

    G. G. Dubal, P. R. Vachchharajani, ... V. H. Shah in Russian Journal of General Chemistry
    Article 01 October 2022
  7. Development and validation of an LC-HRMS method for the determination of pyrrolizidine alkaloids and quinolones in honey employing a simple alkaline sample dilution

    Honey residue and contaminant assessments are extremely important, as they deal with food and therapeutic safety issues of a widely consumed animal...

    Thiago Bousquet Bandini, Bernardete Ferraz Spisso in Journal of Food Measurement and Characterization
    Article 08 July 2021
  8. Solid-Phase-Fluorimetric Determination of Quinolones in Medicinal Preparations on Cellulose Paper and in a Thin Silica Layer Using a Smartphone

    Abstract

    A simple and an available method is proposed for the determination of quinolone antibiotics using solid-phase fluorescence digital...

    V. G. Amelin, Z. A. Ch. Shogah, D. S. Bol’shakov in Journal of Analytical Chemistry
    Article 03 July 2021
  9. Facile synthesis of 5-aminopyrazolo-quinolones

    Catalyzed by triethylamine, 4-hydrazino-quinolin-2-one derivatives and 2-(1-ethoxy-substituted-ene)malononitrile were refluxed together in ethanol to...

    Mohammed A. I. Elbastawesy, Ashraf A. Aly, ... Mohamed Ramadan in Monatshefte für Chemie - Chemical Monthly
    Article 01 September 2023
  10. Determination of 12 quinolones in honey by vortex-assisted dispersive liquid liquid microextraction performed in syringe based on deep eutectic solvent combine with ultra performance liquid chromatography-mass spectrometry

    A novel vortex-assisted dispersive liquid–liquid microextraction method based on deep eutectic solvent (VA–DLLME–DES) completed in syringe has been...

    Yixia Wang, Sijun Zhao, ... Cun Li in European Food Research and Technology
    Article 15 October 2021
  11. Noncovalent interactions as a solution for the metal-free one-pot asymmetric synthesis of (S)-2-aryl-2,3-dihydro-4(1H)-quinolones

    4-Quinolones compose a remarkable class of compounds that show various pharmacological applications. In particular, the activities of both ( S ) and ( R )...

    Patrick de Lima Lopes Rocha, Fernando Martins dos Santos Jr., ... Rodolfo Goetze Fiorot in Journal of Molecular Modeling
    Article 28 October 2022
  12. Rapid Detection of Quinolone Antibiotics in Aquatic Products by Surface-Enhanced Raman Spectroscopy Combined with Thin Layer Chromatography

    Abstract

    This study presents the establishment of surface-enhanced Raman spectroscopy ( SERS ) combined with the thin-layer chromatography ( TLC ) method...

    Zhang Min, Ren Qiyong, ... Zhang Honglian in Journal of Analytical Chemistry
    Article 01 December 2023
  13. Chitosan@Tannic Acid-Supported Fe3O4 Magnetic Bionanocomposite as Green and Recyclable Catalyst for the Synthesis of Benzo[g]thiazolo[3,2-a]quinolones Based on Nitroketene N,S-Acetal

    To prepare an efficient magnetic bionanocomposite and to protect ferrite nanoparticles from oxidation and aggregation, the prepared Fe 3 O 4 was...

    Fatemeh Fazelinia, Mohammad Bayat, ... Ali Maleki in Catalysis Surveys from Asia
    Article 04 September 2023
  14. Novel Synthetic Antibacterial Agents

    Classical (fermentation-based) and nonclassical (nonfermentation-based) antibacterials are conventionally used for the treatment of bacterial...
    Mohsen Daneshtalab in Heterocyclic Antitumor Antibiotics
    Chapter
  15. Post‐synthetic modification of IR-MOF‐3 as acidic-basic heterogeneous catalyst for one-pot synthesis of pyrimido[4,5-b]quinolones

    In this study, a modified IR-MOF-3 via a multi-step post-synthesis modification, namely IR-MOF-3-ILOAc-Fe(acac) 3 , was prepared as an ion-pair...

    Zahra Karami, Mohammad Mehdi Khodaei in Research on Chemical Intermediates
    Article 02 March 2022
  16. Topological analysis and reactivity study of monomeric and dimeric forms of 2-methyl-4(1H)-quinolone: a computational study

    Context

    Quinolone derivatives have gathered major attention largely due to their wonderful biological activities. Quinolones are a class of molecules...

    Subhechha Sabud, Madhumita Bera, Jagannath Pal in Journal of Molecular Modeling
    Article 13 November 2023
  17. Preparation of a hydrophobic deep eutectic solvent and its application in the detection of quinolone residues in cattle urine

    Enrichment for the detection of quinolone residues is usually cumbersome and requires large amounts of toxic organic reagents. Therefore, this study...

    Qian Zhou, **aoLu Su, ... Jun Dong in Analytical and Bioanalytical Chemistry
    Article 27 May 2023
  18. Biosynthetic flexibility of Pseudomonas aeruginosa leads to hydroxylated 2-alkylquinolones with proinflammatory host response

    The human pathogen Pseudomonas aeruginosa produces various 4(1 H )-quinolones with diverse functions. Among these, 2-nonyl-4(1 H )-quinolone (NQ) and its N ...

    Viktoriia Savchenko, Dávid Szamosvári, ... Thomas Böttcher in Communications Chemistry
    Article Open access 03 July 2023
  19. QSRR modeling of the chromatographic retention behavior of some quinolone and sulfonamide antibacterial agents using firefly algorithm coupled to support vector machine

    Quinolone and sulfonamide are two classes of antibacterial agents with an opulent history of medicinal chemistry features that contribute to their...

    Marwa A. Fouad, Ahmed Serag, ... Ahmed M. El Kerdawy in BMC Chemistry
    Article Open access 03 November 2022
  20. Determination of Residual Amounts of Antibiotics in Environmental Samples and Food Products

    Abstract

    We present a review of methods for the sample preparation and determination of residual amounts of antibiotics in environmental samples and...

    O. I. Lavrukhina, V. G. Amelin, ... T. D. Pen’kov in Journal of Analytical Chemistry
    Article 12 November 2022
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