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Your search keyword '"Rivoarison Randrianasolo"' showing total 3 results
Start Over Author "Rivoarison Randrianasolo" Topic clusiaceae
3 results on '"Rivoarison Randrianasolo"'

1. Flavonol Glycoside from Psorospermum androsaemifolium

Author

Poumale Herve Martia Poumale, Justin Komguem, Yoshihito Shiono, Bonaventure T. Ngadjui, Dawe Amadou, Hans Christoph Krebs, Alphonsine Nkapwa Guedem, and Rivoarison Randrianasolo

Subjects
chemistry.chemical_classification, Chloroform, biology, Stereochemistry, Glycoside, Fatty acid, Clusiaceae, General Chemistry, biology.organism_classification, Antimicrobial, Psorospermum, chemistry.chemical_compound, Hydrolysis, chemistry, Lupeol
Abstract

A new flavonol glycoside, 3′-(4′''-(3′''',4′'''-dihydroxyphenoxy)-2′''-hydroxyphenoxy)acanthophorin B (1a) together with 3′-(2′'',4′''-dihydroxyphenoxy)acanthophorin B (1), acanthophorin B (2), vismiaquinone (3), rheochrysidin (3a), lupeol acetate and fatty acid were isolated from the chloroform extract of the stem bark of Psorospermum androsaemifolium Baker (Clusiaceae). The structure of 1a was determined on the basis of detailed spectroscopic analysis and comparison with the literature. Compounds 1a and 3a showed moderate antimicrobial activity.

Published
2011

2. ChemInform Abstract: Flavonoid Glycosides and Other Constituents of Psorospermum androsaemifolium Baker (Clusiaceae)

Author

Jeannot Victor Rakotoarimanga, Jean Claude Tchouankeu, Bonaventure T. Ngadjui, Rivoarison Randrianasolo, Hans Christoph Krebs, Herve Martial Poumale Poumale, and Amélie Raharisololalao

Subjects
Antifungal, Hentriacontane, biology, Traditional medicine, Flavonoid glycosides, medicine.drug_class, Alpha (ethology), Clusiaceae, Dihydrochalcone, General Medicine, biology.organism_classification, Psorospermum, chemistry.chemical_compound, chemistry, medicine, Quercetin
Abstract

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 together 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, 1a, 1b, 2, 3, 3a and 4 showed weak antifungal and antibacterial activities.

Published
2009

3. Flavonoid glycosides and other constituents of Psorospermum androsaemifolium BAKER (Clusiaceae)

Author

Jeannot Victor Rakotoarimanga, Bonaventure T. Ngadjui, Rivoarison Randrianasolo, Herve Martial Poumale Poumale, Hans Christoph Krebs, Jean Claude Tchouankeu, and Amélie Raharisololalao

Subjects
Antifungal, Spectrometry, Mass, Electrospray Ionization, Antifungal Agents, Magnetic Resonance Spectroscopy, medicine.drug_class, Stereochemistry, Microbial Sensitivity Tests, Rhamnose, Mass Spectrometry, Psorospermum, chemistry.chemical_compound, Chalcones, Clusiaceae, Drug Discovery, medicine, Glycosides, Hentriacontane, Flavonoids, Flavonoid glycosides, biology, Hydrolysis, Dihydrochalcone, General Chemistry, General Medicine, biology.organism_classification, Flavones, Anti-Bacterial Agents, Plant Leaves, chemistry, Quercetin
Abstract

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 together 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, 1a, 1b, 2, 3, 3a and 4 showed weak antifungal and antibacterial activities.

Published
2008

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