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Journal of Natural Medicines

, Volume 63, Issue 2, pp 176–180 | Cite as

Resin glycosides from the leaves and stems of Ipomoea digitata

  • Masateru OnoEmail author
  • Hitoshi Fukuda
  • Hiroko Murata
  • Kazumoto Miyahara
Original Paper

Abstract

Alkaline hydrolysis of the ether-soluble resin glycoside (jalapin) fraction of the leaves and stems of Ipomoea digitata L. (Convolvulaceae) gave six organic acids, isobutyric, (S)-2-methylbutyric, tiglic, n-decanoic, n-dodecanoic, and cinnamic acids, and two glycosidic acids, quamoclinic acid A and operculinic acid A. Further, a new genuine resin glycoside, named digitatajalapin I, was isolated from the jalapin fraction, along with three known resin glycosides. Their structures have been determined on the basis of chemical and spectroscopic data.

Keywords

Ipomoea digitata Convolvulaceae Resin glycoside Jalapin Digitatajalapin I 

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Copyright information

© The Japanese Society of Pharmacognosy and Springer 2009

Authors and Affiliations

  • Masateru Ono
    • 1
    Email author
  • Hitoshi Fukuda
    • 2
  • Hiroko Murata
    • 2
  • Kazumoto Miyahara
    • 2
  1. 1.School of AgricultureTokai UniversityAsoJapan
  2. 2.Faculty of Pharmaceutical SciencesSetsunan UniversityHirakataJapan

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