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'Sesquiterpene Lactones' in keywords Facet   Publication Year 2000  [X]
Facet   section ZfN Section C  [X]
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1Author    Günter Lang3, ClausM. Passreiter3 ', BeatrizE. Medinillab, Juan-Jose Castillo0Requires cookie*
 Title    of Eupatorium semialatumA  
 Abstract    Fax: +49 211 8 1 1 1 9 2 3 , E-m ail: passreit@uni-duesseldorf.de b Facultad Ciencias Qufmicas y Farmacfa, Universidad de San Carlos, Guatemala Ciudad. Guatemala c Facultad de Agronomfa, Universidad de San Carlos, G uatem ala Ciudad, Guatemala d Part of a current dissertation of G. Lang, Heinrich-Heine-Universität, Düsseldorf A collection of Eupatorium semialatum from Guatem ala was investigated for the occur­ rence of sesquiterpene lactones. In addition to the sesquiterpene cinnamoyloxyoplopanone (5), lactones of the eudesmanolide type were found and identified by NM R as derivatives of 8ß-hydroxyreynosin and 8ß-hydroxybalchanin, esterified with 2-substituted acrylic acids. The acid moieties were determined to be the enantiomeric (R)-and (5)-(2-hydroxy-l-m ethoxy-ethyl)acrylic acid, in 1, 2 and 4 respectively, and (1 
  Reference    Z. Naturforsch. 55c, 511 (2000); received March 23 2000 
  Published    2000 
  Keywords    Eupatorium semialatum, Sesquiterpene Lactones, Eudesmanolides 
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 TEI-XML for    default:Reihe_C/55/ZNC-2000-55c-0511.pdf 
 Identifier    ZNC-2000-55c-0511 
 Volume    55 
2Author    Helen Skaltsa3, Diamanto Lazari3, Begona Garciab, JoseR. Pedrob, Marina Sokovicc, Theophanis ConstantinidisdRequires cookie*
 Title    Sesquiterpene Lactones from Centaurea achaia, a Greek Endemic Species: Antifungal Activity  
 Abstract    The aerial parts of Centaurea achaia afforded, in addition to several known sesquiterpene lactones and sesquiterpene hydroxyesters, a new germacranolide and a new elemanolide. Their structures were determined as the 8a-0-(4,5-dihydroxy-tigloyloxy) esters of saloniteno-lide and of 11,13-dihydromelitensin, respectively. The in vitro antifungal activity of most compounds was tested against nine fungal species using the micro-dilution method. All the tested compounds showed strong antifungal activity. 
  Reference    Z. Naturforsch. 55c, 534 (2000); received March 27/April 28 2000 
  Published    2000 
  Keywords    Centaurea achaia, Sesquiterpene Lactones, Antifungal Activity 
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 TEI-XML for    default:Reihe_C/55/ZNC-2000-55c-0534.pdf 
 Identifier    ZNC-2000-55c-0534 
 Volume    55