Chemical composition of Leplaea mayombensis (Pellegrin) Staner

الموضوعات :

Djeukeu Charlie ¹ , Hermine Laure Djomkam Maza ² , Kenmogne Ariane ³ , Sewald Norbert ⁴ , Wansi Duplex ⁵ , Vardamides Catherine ⁶

1 - Department of Chemistry, Faculty of Science, University of Douala, P.O. Box 24157, Douala, Cameroon
2 - Department of Chemistry, Faculty of Science, University of Douala, P.O. Box 24157, Douala, Cameroon
3 - Organic and Bioorganic Chemistry, Department of Chemistry, Bielefeld University, 33501 Bielefeld, Germany
4 - Organic and Bioorganic Chemistry, Department of Chemistry, Bielefeld University, 33501 Bielefeld, Germany
5 - Department of Chemistry, Faculty of Science, University of Douala, P.O. Box 24157, Douala, Cameroon
6 - Department of Chemistry, Faculty of Science, University of Douala, P.O. Box 24157, Douala, Cameroon

تاريخ الإرسال : 22 الخميس , جمادى الثانية, 1442 تاريخ التأكيد : 17 السبت , شوال, 1442 تاريخ الإصدار : 20 الثلاثاء , شوال, 1442

الکلمات المفتاحية: Minimum inhibitory concentration, Antibacterial activity, <i>Leplaea mayombensis</i>, coumarinolignan,

ملخص المقالة :

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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