Journal
CHEMICAL & PHARMACEUTICAL BULLETIN
Volume 56, Issue 10, Pages 1428-1430Publisher
PHARMACEUTICAL SOC JAPAN
DOI: 10.1248/cpb.56.1428
Keywords
Psorospermum androsaemifolium; quercetin; dihydrochalcone; antimicrobial
Funding
- D.A.A.D (Deutscher Akademischer Austauschdienst)
- the Organic Chemistry Institute of the University of Hanover
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Two new flavonoid glycosides, namely 3'-(2 '',4 ''-dihydroxybenzyloxy)acanthophorin B (1b) and beta,2,3',4,4',6-hexahydroxy-alpha-(alpha-L-rhamnopyranosyl)dihydrochalcone (2) were isolated from the leaves of Psorospermum androsaemifolium ogether with quercetin (1), acanthophorin B (1a), alpha-(3) and beta-amyrine (3a), vismiaquinone (4), 12-hentriacontanol and hentriacontane. The structures of these secondary metabolites were established using detailed spectroscopic analysis and by comparison with published data. Compounds 1, 1 a, 11), 2, 3. 3a and 4 showed weak antifungal and antibacterial activities.
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