QUAFRINOIC ACIDS: TWO NEW TRITERPENIODS FROM QUASSIA AFRICANA STEM BARK

  • EO Ajaiyeoba Department of Pharmacognosy, Faculty of Pharmacy, University of Ibadan, Ibadan, Nigeria
  • HC Krebs ZA fur Endokrinologie & Chemie Analytik, Tiererzthiche Hochschule, Bischofsholer Damm 15, 30713 Hannover, Germany.
Keywords: africana, Simaroubaceae, triterpenoids, Quafrinoic acids

Abstract

From the stem bark of Quassia africana, two new triterpenoids with the ursolic acid skeleton, characterized as 3-oxo-urs-12-en-27a, 28di-oic acid and its dihydro derivative, 3β-urs-12-en-27α, 28di-oic acid have been isolated. The structures were determined using spectroscopic techniques.

KEY WORDS: Quassia africana; Simaroubaceae; triterpenoids; Quafrinoic acids

Nigerian Journal of Natural Products and Medicine Vol.7 2003: 39-41
Published
2004-07-23
Section
Articles

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eISSN: 1118-6267