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Published on: July 11, 2025
Antimalarial compounds from the stem bark of Vismia laurentii
Diderot T Noungoue1, Mehdi Chaabi, Silvère Ngouela
1Department of Organic Chemistry, Faculty of Science, TWAS Research Unit (TRU) of University of Yaoundé I, P.O. Box 812, Yaoundé, Cameroon. didetchamo@yahoo.fr
Abstract:
A phytochemical study of the stem bark of Vismia laurentii resulted in the isolation of a tetracyclic triterpene, tirucalla-7,24-dien-3-one (1), and seven other known compounds: 3-geranyloxyemodin (2), vismiaquinone A (3), vismiaquinone B (4), bivismiaquinone (5), epifriedelinol (6), betulinic acid (7) and stigmasta-7,22-dien-3-ol (8). The structure of all these compounds was elucidated by spectroscopic means. The stem bark extract and compounds 1 and 3 showed good antimalarial activity against the W2 strain of Plasmodium falciparum.
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