ISSN:
0170-2041
Keywords:
Dalbergia monetaria
;
(β-D-Glucopyranosyl)orobol
;
C-Glucosides
;
Orobol
;
Chemistry
;
Organic Chemistry
Source:
Wiley InterScience Backfile Collection 1832-2000
Topics:
Chemistry and Pharmacology
Description / Table of Contents:
Components from the Stem Bark of Dalbergia monetaria L. - Three New Isoflavone C-GlucosidesFrom the stem bark of Dalbergia monetaria six C-glucosides of isoflavonoids have been isolated. Three of them represent new natural products: 6-(β-D-glucopyranosyl)orobol (6), 8-(6″-O-acetyl-β-D-glucopyranosyl)orobol (7), and 6-(O-acetyl-β-D-glucopyranosyl)orobol (5); in the latter, the position of the acetyl group in the glucose rest is not known. Furthermore, 8-(β-D-glucopyranosyl)orobol (8), 6,8-bis(β-D-glucopyranosyl)orobol (9), and 6,8-bis(β-D-glucopyranosyl)genistein (10) which have been already found in other plants could be identified. Additionally, the examined extracts contain friedelin (1) and the steroids β-sitosterol (2), stigmasterol (3), and campesterol (4).
Notes:
Aus der Rinde von Dalbergia monetaria wurden sechs C-Glucoside von Isoflavonoiden isoliert. Drei von ihnen stellen neue Naturstoffe dar: 6-(β-D-Glucopyranosyl)orobol (6), 8-(6″-O-Acetyl-β-D-glucopyranosyl)orobol (7) und 6-(O-Acetyl-β-D-glucopyranosyl)orobol (5), bei dem die Position der Acetylgruppe offen bleibt. Weiter wurden - die schon in anderen Pflanzen gefundenen - 8-(β-D-Glucopyranosyl)orobol (8), 6,8-Bis(β-D-glucopyranosyl)orobol (9) und 6,8-Bis(β-D-glucopyranosyl)genistein (10) identifiziert. Zusätzlich treten in den untersuchten Extrakten Friedelin (1) sowie die Steroide β-Sitosterol (2), Stigmasterol (3) und Campesterol (4) auf.
Additional Material:
3 Tab.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1002/jlac.198919890158
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