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Related Experiment Videos

A solid-phase approach to DDB derivatives.

Xiuxiang Qi1, Xiaolai Wang, Limin Wang

  • 1Lanzhou Institute of Chemical Physics, The Chinese Academy of Sciences, Lanzhou 730000, China.

European Journal of Medicinal Chemistry
|July 19, 2005
PubMed
Summary

Researchers explored novel 2,2′-disubstituted biphenyl derivatives, based on the anti-hepatitis B virus (HBV) agent DDB, for enhanced antiviral activity. Several new serine derivatives demonstrated significant in vitro anti-HBV efficacy with low toxicity.

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Area of Science:

  • Medicinal Chemistry
  • Organic Synthesis
  • Hepatology

Background:

  • 2,2'-dimethoxycarbonyl-4,4-dimethoxy-5,6,5',6'-biomethylenedioxy-biphenyl (DDB) is a known potent anti-hepatitis B virus (HBV) agent.
  • Structure-activity relationships of DDB analogs have been investigated to identify improved anti-HBV compounds.
  • Extending DDB derivatives to include serine moieties is a rational approach to discover new antiviral agents.

Purpose of the Study:

  • To synthesize novel 3,3'-disubstituted-4,4'-dimethoxy-5,6,5',6'-dimethenedioxy-2-alkyloxycarbonyl-2'-Serine derivatives.
  • To develop an efficient solid-phase synthesis method for a large library of DDB derivatives.
  • To evaluate the in vitro anti-HBV activity and toxicity of the synthesized compounds.

Main Methods:

  • Solid-phase synthesis involving the reaction of DDB acid chloride with serine derivatives.

Related Experiment Videos

  • Liquid Chromatography-Mass Spectrometry (LC-MS) for structural confirmation.
  • (1)H Nuclear Magnetic Resonance ((1)H NMR) spectroscopy for structural elucidation.

    • Main Results:

    • A library of novel DDB-serine derivatives was successfully synthesized using the developed solid-phase method.
    • The structures of the synthesized compounds were confirmed by LC-MS and (1)H NMR.
    • Compounds 2a, 2d, 2f, and 2j exhibited significant in vitro anti-HBV activity.
    • These active compounds showed no significant toxicity at concentrations up to 100 microM.

    Conclusions:

    • The developed solid-phase synthesis is an efficient route for generating diverse DDB derivatives.
    • Novel DDB-serine derivatives represent a promising class of compounds for anti-HBV drug development.
    • Compounds 2a, 2d, 2f, and 2j warrant further investigation as potential therapeutic agents against HBV infection.