Structure-activity relationships of fluorene compounds inhibiting HCV variants

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Hee Sun Kim1, Youngsu You2, Jaegon Mun3

  • 1Division of Integrative Biosciences and Biotechnology, Pohang University of Science and Technology, Pohang, 37673, South Korea.

Antiviral Research
|December 22, 2019
PubMed

Insights

New fluorene compounds show potent activity against Hepatitis C Virus (HCV), including drug-resistant strains. These findings offer promising avenues for developing novel antiviral therapies for HCV infection.

Area of Science:

  • Hepatology
  • Virology
  • Medicinal Chemistry

Background:

  • Hepatitis C Virus (HCV) infects 71 million globally, causing severe liver diseases and 400,000 annual deaths.
  • Direct-acting antiviral agents (DAAs) target key HCV proteins like NS3/4A, NS5B, and NS5A.
  • NS5A inhibitors are crucial in current HCV treatment due to high efficacy and low toxicity.

Purpose of the Study:

  • To identify novel fluorene compounds with potent anti-HCV activity.
  • To evaluate compound efficacy against different HCV genotypes and drug-resistant variants.
  • To elucidate the structure-activity relationships and molecular mechanisms of inhibition.

Main Methods:

  • Synthesis and screening of fluorene derivatives for HCV inhibition.
  • Testing against Hepatitis C Virus genotypes 1b and 3a.
  • Assessment of activity against DAA-resistance associated variants.
  • Structure-activity relationship analysis.
  • Molecular docking studies to investigate binding interactions.

Main Results:

  • Fluorene compounds demonstrated significant inhibitory effects on HCV GT 1b and 3a.
  • Several compounds were effective against resistance-associated variants to existing DAAs.
  • Structure-activity relationships were established for the fluorene series.
  • Molecular docking provided insights into the binding modes and mechanisms of inhibition.

Conclusions:

  • Fluorene compounds represent a promising class of novel antiviral agents against HCV.
  • These compounds show potential for overcoming DAA resistance.
  • Further investigation is warranted for the development of new HCV therapeutics.
Keywords:
Direct-acting antiviral agent (DAA)Hepatitis c virusMolecular dockingNS5A inhibitorResistance-associated variant (RAV)Structure-activity relationship (SAR)

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