Four geranyl-bearing polyisoprenylated benzoylphloroglucinol derivatives from Hypericum sampsonii

Yi Han Zeng, Khadijo Osman, Zhi Yong Xiao, Simon Gibbons, Qing Mu

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    Abstract

    Four new geranyl-bearing polyisoprenylated benzoylphloroglucinol derivatives, hypersampsone I (1), hypersampsone J (2), and hypersampsone K (3), together with hypersampsone L (4) which possessed a novel skeleton, were isolated from the fruit of Hypericum sampsonii. Their structures were determined on the basis of spectroscopic data, mainly 1D- and 2D-NMR spectroscopy and mass spectrometry. The structures of 1 and 2 were confirmed by X-ray crystallographic analysis.

    Original languageEnglish
    Pages (from-to)200-205
    Number of pages6
    JournalPhytochemistry Letters
    Volume5
    Issue number1
    DOIs
    Publication statusPublished - Mar 2012

    Keywords

    • Hypericum
    • Hypericum sampsonii
    • Hypersampsone H
    • Hypersampsone I-L
    • Polyisoprenylated benzoylphloroglucinol derivatives
    • X-ray crystallography

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