Chemical composition of Leplaea mayombensis (Pellegrin) Staner
محورهای موضوعی : Natural Products: Isolation and Characterization
Djeukeu Charlie
1
(
Department of Chemistry, Faculty of Science, University of Douala, P.O. Box 24157, Douala, Cameroon
)
Hermine Laure Djomkam Maza
2
(
Department of Chemistry, Faculty of Science, University of Douala, P.O. Box 24157, Douala, Cameroon
)
Kenmogne Ariane
3
(
Organic and Bioorganic Chemistry, Department of Chemistry, Bielefeld University, 33501 Bielefeld, Germany
)
Sewald Norbert
4
(
Organic and Bioorganic Chemistry, Department of Chemistry, Bielefeld University, 33501 Bielefeld, Germany
)
Wansi Duplex
5
(
Department of Chemistry, Faculty of Science, University of Douala, P.O. Box 24157, Douala, Cameroon
)
Vardamides Catherine
6
(
Department of Chemistry, Faculty of Science, University of Douala, P.O. Box 24157, Douala, Cameroon
)
کلید واژه: Minimum inhibitory concentration, Antibacterial activity, <i>Leplaea mayombensis</i>, coumarinolignan,
چکیده مقاله :
One new coumarinolignan, cleomiscosin F (1) along with ten known compounds namely 3,4-secotirucalla-4(28),7,24-trien-21-hydroxy-21,23-epoxy-3-oic acid (2), 3,4-secotirucalla-4(28),7,24-trien-3,21-dioic acid (3),ceramid A (4),ceramid B (5), mayombensin (6),aridanin (7), stigmasterol and β-sitosterol and their glucosides were isolated from the seeds and roots of Leplaea mayombensis (Meliaceae).Thestructures of the compounds were elucidated based on the interpretation of their spectroscopic data. Some of the isolated compounds (3, 4 and 5) were tested in vitro against bacteria strains Escherichia coli, Bacillus subtilis, Pseudomonas agarici, and Micrococcus luteus. Compound 3 displayed good activity against Bacillus subtilis, Micrococcus luteus, and Pseudomonas agarici with MIC values of 1.7, 2.3 and 9.8µM, respectively; while compound 4 showed significant activity against Micrococcus luteus with MIC value of 11.9µM.
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