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Publication Details
AFRICAN RESEARCH NEXUS
SHINING A SPOTLIGHT ON AFRICAN RESEARCH
biochemistry, genetics and molecular biology
Bioactive constituents of the stem bark of Beilschmiedia zenkeri
Journal of Natural Products, Volume 72, No. 12, Year 2009
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Description
Phytochemical investigation of the stem bark of Beilschmiedia zenkeri led to the isolation of four new methoxylated flavonoid derivatives, (2S,4R)-5,6,7-trimethoxyflavan-4-ol (1), (2S,4R)-4,5,6,7-tetramethoxyflavan (2), beilschmieflavonoid A (3), and beilschmieflavonoid B (4), together with seven known compounds. The structures of 1-4 were established by spectroscopic methods, and their relative configurations confirmed by X-ray crystallographic and CD analysis. The isolated compounds were evaluated in vitro for their antibacterial activity against three strains of bacteria, Pseudomonas agarici, Bacillus subtilis, and Streptococcus minor, and for their antiplasmodial activity against Plasmodium falciparum, chloroquine-resistant strain W2. © 2009 American Chemical Society and American Society of Pharmacognosy.
Authors & Co-Authors
Lenta, Bruno Ndjakou
Cameroon, Yaounde
Université de Yaoundé I
Germany, Bielefeld
Universität Bielefeld
Tantangmo, Ferdinand
Cameroon, Yaounde
Université de Yaoundé I
Devkota, Krishna Prasad
Germany, Bielefeld
Universität Bielefeld
Wansi, Jean Duplex
Germany, Bielefeld
Universität Bielefeld
Chouna, Jean Rodolphe
Cameroon, Yaounde
Université de Yaoundé I
Soh, Rene Cosme Fongang
Cameroon, Yaounde
Université de Yaoundé I
Neumann, Beate
Germany, Bielefeld
Universität Bielefeld
Stammler, Hans Georg
Germany, Bielefeld
Universität Bielefeld
Tsamo, Etienne
Cameroon, Yaounde
Université de Yaoundé I
Sewald, Norbert
Germany, Bielefeld
Universität Bielefeld
Statistics
Citations: 51
Authors: 10
Affiliations: 2
Identifiers
Doi:
10.1021/np900341f
ISSN:
01633864