Background: In recent decades, several viruses have jumped from animals to humans, triggering sizable outbreaks. The current unprecedent outbreak SARS-COV-2 is prompting a search for new cost-effective therapies to combat this deadly pathogen. Suitably functionalized polysubstituted quinoxalines show very interesting biological properties (antiviral, anticancer, and antileishmanial), ensuring them a bright future in medicinal chemistry.
Objectives: Focusing on the promising development of new quinoxaline derivatives as antiviral drugs, this review forms part of our program on the anti-infectious activity of quinoxaline derivatives.
Methods: Study compiles and discusses recently published studies concerning the therapeutic potential of the antiviral activity of quinoxaline derivatives, covering the literature between 2010 and 2020.
Results: A final total of 20 studies included in this review.
Conclusions: This review points to a growing interest in the development of compounds bearing a quinoxaline moiety for antiviral treatment. This promising moiety with different molecular targets warrants further investigation, which may well yield even more encouraging results regarding this scaffold.
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http://dx.doi.org/10.3390/molecules25122784 | DOI Listing |
Bioorg Chem
January 2025
Department of Pharmaceutical Organic Chemistry, Faculty of Pharmacy (Girls), Al-Azhar University, Cairo 11754 Egypt. Electronic address:
Anti-infective agents are a class of drugs used to prevent, treat, or control infections caused by microorganisms such as bacteria, viruses, fungi, and parasites. They play a crucial role in modern medicine, helping to reduce the severity of infections and, in many cases, save lives. This study aims at the design and synthesis of hybrid compounds containing quinoxaline, pyrrolidine, and an azo bridge to combat antimicrobial resistance, and evaluating their antimicrobial, antifungal, and antiviral activities against various pathogenic strains.
View Article and Find Full Text PDFCarbohydr Polym
March 2025
Department of Chemistry, Faculty of Science (boys), Al-Azhar University, 11884 Nasr City, Cairo, Egypt.
This study aims to enhance the antimicrobial properties of chitosan through preparing novel chitosan Schiff bases via coupling with 4-formylphenyl 2,3-dioxo-1,2,3,4-tetrahydroquinoxaline-6-sulfonate (B5) where, different molar ratios of B5 were used to prepare various Schiff bases with chitosan, resulting in Schiff bases coded as d5, d6, d7, and d8, respectively. The modified chitosan samples (d5, d6, d7, and d8) showed reduced crystallinity and improved thermal stability. The crystallinity index of unmodified chitosan was 64 %, which decreased to 59, 55.
View Article and Find Full Text PDFRSC Adv
January 2025
Department of Life Science and Agriculture, Zhoukou Normal University Zhoukou Henan 466001 China
This study reports a green, multi-component synthesis of 2-aminoimidazole-linked quinoxaline Schiff bases using a novel superparamagnetic acid catalyst. The catalyst consists of sulfo-anthranilic acid (SAA) immobilized on MnCoFeO@alginate magnetic nanorods (MNRs), achieving high SAA loading (1.8 mmol g) and product yields (91-97%).
View Article and Find Full Text PDFRSC Adv
January 2025
Department of Chemistry, Faculty of Science (Boys), Al-Azhar University 11884 Nasr City Cairo Egypt
Herein, novel thiazolo[4,5-]quinoxalin-2-ones 2-6 and thiazolo[4,5-]quinoxalin-2(3)-imines 7-9 were synthesized and characterized using elemental analysis, IR spectroscopy, and H/C NMR to confirm their structures. The efficacy of the newly designed thiazolo-quinoxalines 2, 3, 4, 5, 7, 8, and 9 against the cotton leafworm (2nd and 4th instar larvae) was evaluated, and results revealed insecticidal activity with variable and good mortality percentages. A SAR study was also discussed.
View Article and Find Full Text PDFBioorg Med Chem
January 2025
Alexandru Ioan Cuza University of Iasi, Faculty of Chemistry, Bd. Carol 11, 700506 Iasi, Romania. Electronic address:
In the last decades fungal infections became a major threat to human health having an unacceptably occurrence, a high rate of mortality and the number of patients at risk for these infections continue to increase every year. An effective, modern and very useful strategy in antifungal therapy is represented by the use of chimeric and hybrid drugs, most of them being with azaheterocycle skeleton. In this review, we present an overview from the last five years of the most representative achievements in the field of chimeric and hybrid diazine derivatives with antifungal properties.
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