Lipid Constituents of the New Zealand Liverwort Plagiochila circinalis

  • TOYOTA Masao
    Faculty of Pharmaceutical Sciences, Tokushima Bunri University
  • OMATSU Ikuko
    Faculty of Pharmaceutical Sciences, Tokushima Bunri University
  • BRAGGINS John
    Plant Systematics, School of Biological Sciences, University of Auckland
  • ASAKAWA Yoshinori
    Faculty of Pharmaceutical Sciences, Tokushima Bunri University

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抄録

The major constituent of the ether extract of the New Zealand liverwort Plagiochila circinalis afforded five new fatty acid esters of sterol or triterpenoid. Their structures were unequivocally determined, while the purification was not completed. They were shown to be cycloart-24-en-3β-yl α-linolenate, stigmasteryl γ-linolenate, cycloart-24-en-3β-yl arachidonate, 4α, 14α-dimethyl-8, 24(28)-ergostadien-3β-yl arachidonate and 4α, 14α-dimethyl-8, 24(28)-ergostadien-3β-yl eicosapentaenoate. Cycloart-24-en-3β-yl eicosapentaenoate which has been found in the Malagasy liverwort Mastigophora diclados, was also isolated from the title species.<br>

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