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Related Concept Videos

Antifungal Agents01:15

Antifungal Agents

Amphotericin B is a broad-spectrum antifungal agent that exploits structural differences between fungal and mammalian cell membranes. Its amphipathic structure—featuring a hydrophobic polyene-lactone ring and a hydrophilic region containing mycosamine and carboxylic acid groups—enables selective binding to ergosterol, a sterol predominantly found in fungal plasma membranes. This selective interaction underlies the drug’s antifungal activity, although weak binding to cholesterol contributes to...

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New 1,2,3-Triazole-Appended Bis-pyrazoles: Synthesis, Bioevaluation, and Molecular Docking.

Ashruba B Danne1, Mukund V Deshpande2, Jaiprakash N Sangshetti3

  • 1Department of Chemistry, Dr. Babasaheb Ambedkar Marathwada University, Aurangabad 431 004, Maharashtra, India.

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|October 4, 2021
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Researchers designed novel 1,2,3-triazole-appended bis-pyrazoles with broad-spectrum antifungal activity. These compounds show promise against various fungal strains and possess antioxidant properties, suggesting potential therapeutic applications.

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Area of Science:

  • Medicinal Chemistry
  • Organic Synthesis
  • Antimicrobial Research

Background:

  • Fungal infections pose a significant global health challenge, necessitating the development of new antifungal agents.
  • Existing antifungal therapies face limitations due to resistance and toxicity.
  • Molecular hybridization is a strategy to combine pharmacophores for enhanced biological activity.

Purpose of the Study:

  • To design and synthesize a library of novel 1,2,3-triazole-appended bis-pyrazoles.
  • To evaluate the antifungal activity of the synthesized compounds against a panel of pathogenic fungi.
  • To investigate the potential antioxidant properties and molecular interactions of these novel hybrids.

Main Methods:

  • Synthesis of 1,2,3-triazole-appended bis-pyrazoles via molecular hybridization.
  • Antifungal susceptibility testing to determine minimum inhibitory concentrations (MICs) against *Candida albicans*, *Cryptococcus neoformans*, *Candida glabrata*, *Candida tropicalis*, *Aspergillus niger*, and *Aspergillus fumigatus*.
  • Molecular docking simulations targeting sterol 14α-demethylase (CYP51).
  • In vitro antioxidant activity assays.

Main Results:

  • All synthesized compounds demonstrated broad-spectrum antifungal activity.
  • Excellent minimum inhibitory concentration (MIC) values were recorded against all tested fungal strains.
  • Molecular docking studies provided insights into the binding modes and affinity with CYP51.
  • Promising results were obtained from the antioxidant activity evaluations.

Conclusions:

  • The novel 1,2,3-triazole-appended bis-pyrazoles exhibit significant broad-spectrum antifungal efficacy.
  • These compounds represent a promising new class of antifungal agents with potential therapeutic value.
  • The observed antioxidant properties further enhance their potential as multi-functional therapeutic candidates.