Nigerian Journal of Natural Products and Medicine
Journal / Nigerian Journal of Natural Products and Medicine / Vol. 7 (2003) / Articles

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Published:
Jul 23, 2004
DOI:
10.4314/njnpm.v7i1.11704
Keywords:
africana Simaroubaceae triterpenoids Quafrinoic acids

Article Details

Issue
Vol. 7 (2003)
Section
Articles
Copyright for articles published in this journal is retained by the journal.

Main Article Content

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.

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

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eISSN: 1118-6267
 
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