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  • Alkaloids  (1)
  • Artemisia (Compositae-Anthemideae)  (1)
  • 1
    Electronic Resource
    Electronic Resource
    Albartin—a new sesquiterpene-coumarin ether fromArtemisia alba (1982)
    Springer
    Monatshefte für Chemie 113 (1982), S. 375-379 
    Details
    ISSN: 1434-4475
    Keywords: Artemisia (Compositae-Anthemideae) ; Chemosystematics ; 13C-nmr ; 1H-nmr ; Sesquiterpene-coumarin ethers
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Zusammenfassung Aus den Wurzeln vonArtemisia alba wurde ein neuer Sesquiterpen-Isofraxidin Ether (Isofraxidin = 7-Hydroxy-6,8-dimethoxy-cumarin) isoliert und mittels1H-NMR,13C-NMR, MS, UV und IR charakterisiert. Albartin ist ein exo-Methylen-Isomer von 3-Acetyloxy-drimartol-isofraxidin-ether mit-OAc axial und -CH2OAr equatorial. Die chemosystematische Bedeutung dieser Verbindungsklasse innerhalb der GattungArtemisia wird kurz diskutiert.
    Notes: Abstract A new sesquiterpene isofraxidin ether (isofraxidin=7-hydroxy-6,8-dimethoxy-coumarin) was isolated from the roots ofArtemisia alba and characterized by means of1H-nmr,13C-nmr, ms, uv, and ir. Albartin is an exomethylene isomer of 3-acetyloxy-drimartol isofraxidin ether with -OAc axial and -CH2OAr equatorial. The chemosystematic significance of this class of compounds within the genusArtemisia is briefly discussed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00799565
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  • 2
    Electronic Resource
    Electronic Resource
    Novel Prenylated 2-Quinolinones from East Asian Zanthoxylum Species (1993)
    Weinheim : Wiley-Blackwell
    Liebigs Annalen 1993 (1993), S. 355-358 
    Details
    ISSN: 0170-2041
    Keywords: Quinolines ; Alkaloids ; Pyrano-quinolines ; Schinifolines ; Flindersines ; Zanthoxylum spec. ; Terpenes ; Chemistry ; Organic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: In addition to already known 2-quinolinones [flindersine (3), N-methylflindersine (4), 8-methoxyflindersine (5), zanthobungeanine (6), glycolone (1), O-methylglycosolone (2)], four novel derivatives have been isolated and identified by spectroscopic methods. The roots of Zanthoxylum schinifolium and Z. simulans contain the novel prenylated schinifoline (7) and N-methylschinifoline (8), whereas the leaves of Z. simulans predominantly form N-acetoxymethylflindersine (10). From the roots of Z. scandens zascanol epoxide (9) has been isolated whose prenyl side chain is characterized by an epoxide ring and a terminal hydroxy group.
    Additional Material: 1 Tab.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/jlac.199319930160
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    Paper (German National Licenses)
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