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  • 1
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Liebigs Annalen 1974 (1974), S. 169-175 
    ISSN: 0075-4617
    Keywords: Chemistry ; Organic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Isolation and Structure of Larreagenin AFour glycosides have been isolated from leaves of the central american plant Larreu divaricata Cav.; the structure of one of the aglycons, larreagenin A, has been elucidated by means of 1H-NMR- and 13C-NMR-investigation together with other spectroscopic data as 3β-hydro-xy-29-nor-urs-13(18)-en-20β,28β-olide (4). Larreic acid, isolated from the same plant as glycoside, can be isomerized to larreagenin A.
    Notes: Aus Blättern der mittelamerikanischen Pflanze Lurrea divaricata Cav. wurden 4 Glykoside isoliert; die Struktur eines der Aglyka, das Larreagenin A wurde mit Hilfe von 1H-NMR- und 13C-NMR-Untersuchungen sowie anderer spektroskopischer Daten als 3β-Hydroxy-29-nor-urs-l3(18)-en-20β,28β-olid (4) aufgeklärt. Die aus der gleichen Pflanze als Glykosid isolierte Larreasäure läßt sich zu Larreagenin A isomerisieren.
    Additional Material: 1 Ill.
    Type of Medium: Electronic Resource
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