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Related Experiment Video

Updated: Mar 25, 2026

Author Spotlight: Discovering New Alkaloids in Plants with Advanced Mass Spectrometry Techniques
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Lycopodium Alkaloids from Diphasiastrum complanatum.

Yu Tang, Juan Xiong, Jin-Feng Hu

    Natural Product Communications
    |February 18, 2016
    PubMed
    Summary

    Researchers identified a new lycopodine-type alkaloid, dehydroisofawcettiine N-oxide, from the Diphasiastrum complanatum plant. Its structure and absolute configuration were determined using advanced spectroscopic and chemical methods.

    Area of Science:

    • Natural Product Chemistry
    • Phytochemistry
    • Organic Chemistry

    Background:

    • Lycopodium alkaloids are a diverse group of secondary metabolites with various biological activities.
    • Diphasiastrum complanatum is a plant species known to contain various alkaloids.
    • Exploring the chemical constituents of medicinal plants is crucial for discovering novel compounds.

    Purpose of the Study:

    • To isolate and characterize new and known Lycopodium alkaloids from Diphasiastrum complanatum.
    • To elucidate the structure of a novel alkaloid using spectroscopic techniques.
    • To determine the absolute configurations of the new alkaloid and a known analogue.

    Main Methods:

    • Isolation of alkaloids using chromatographic techniques.
    • Structure elucidation using Nuclear Magnetic Resonance (NMR) spectroscopy, including 2D NMR.

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  • Determination of absolute configuration via chemical transformation and Electronic Circular Dichroism (ECD) spectroscopy.

    • Main Results:

    • One new lycopodine-type alkaloid, dehydroisofawcettiine N-oxide, was isolated.
    • Eleven known Lycopodium alkaloids were also identified.
    • The structure of the new alkaloid was confirmed through comprehensive spectroscopic analysis.
    • Absolute configurations of dehydroisofawcettiine N-oxide and a known analogue were successfully determined.

    Conclusions:

    • The study expands the known diversity of Lycopodium alkaloids.
    • Dehydroisofawcettiine N-oxide represents a novel chemical entity within this alkaloid class.
    • The applied spectroscopic and chemical methods are effective for characterizing complex natural products.