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'Sesquiterpene Lactones' in keywords
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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    Christian Zidorn3, ErnstP. Ellmerer-M, MichaelJ D Iillerb, HermAnn Obner3, Stuppner3Requires cookie*
 Title    Leontodon cichoraceus  
 Abstract    A re-investigation of subaerial parts of L eontodon cichoraceus (Ten.) Sanguin. yielded the new ger-macrane-type sesquiterpenoid 15-/?-D-glucopyranosyl-8-[p-(/3-D-glucopyranosyloxy)phenylacetyl]-saloniteno-lide. The structure was established by A PCI mass spec­ trom etry and ID -and 2D-NMR spectroscopy. A survey by HPLC-DAD and HPLC-MS gave no signs of this compound in 23 other taxa of Leontodon. 
  Reference    Z. Naturforsch. 56c, 904—908 (2001); received June 6 /July 3 2001 
  Published    2001 
  Keywords    Asteraceae, Lactuceae, Sesquiterpene Lactones 
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 TEI-XML for    default:Reihe_C/56/ZNC-2001-56c-0904_n.pdf 
 Identifier    ZNC-2001-56c-0904_n 
 Volume    56 
3Author    D. Ieter Strack, P. Eter Proksch, P. Au, L-G Erh Ard, G. ÜlzRequires cookie*
 Title    Analysis of Sesquiterpene Lactones by High Performance Liquid Chromatography  
 Abstract    High performance liquid chromatography on octyl-and octadecyl-silica (RP-8 and RP-18) stationary phases offers an efficient and rapid method for analysis of sesquiterpene lactones. A mixture of 1 1 lactones was analyzed using gradient elution with increasing acetonitrile concentra­ tion in water and monitoring the column effluent at 210 nm with an UV detector. The described method has been applied to the determination of costunolide in a crude extract from leaves of Laurus nobilis. 
  Reference    Z. Naturforsch. 35c, 915—918 (1980); received August 11980 
  Published    1980 
  Keywords    High Performance Liquid Chromatography (HPLC), Sesquiterpene Lactones, Laurus nobilis 
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 TEI-XML for    default:Reihe_C/35/ZNC-1980-35c-0915.pdf 
 Identifier    ZNC-1980-35c-0915 
 Volume    35 
4Author    MilkaN. Todorova3, ElenaT. Tsankova3, Rilka Ml, DimitarR. Taskovab, PeevbRequires cookie*
 Title    Terpenoids from Achillea clusiana  
 Abstract    Aerial parts of A chillea clusiana include two new chrysanthemol derivatives and three new guaianolides in addition to six known sesquiterpenoids. The structures of the new compounds were elucidated by spectroscopic methods. 
  Reference    Z. Naturforsch. 54c, 1011—1015 (1999); received July 28/September 3 1999 
  Published    1999 
  Keywords    Achillea clusiana, Asteraceae, Terpenoids, Chrysanthemol Derivatives, Sesquiterpene Lactones 
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 TEI-XML for    default:Reihe_C/54/ZNC-1999-54c-1011.pdf 
 Identifier    ZNC-1999-54c-1011 
 Volume    54 
5Author    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 
6Author    O. Spring, J. Kupka, B. M. Aier, A. HagerRequires cookie*
 Title    Helianthus annuus: Antimicrobial and Cytotoxic Properties; Influence on DNA, RNA, and Protein Synthesis  
 Abstract    Sesquiterpene lactones, produced in light and capable o f inhibiting auxin-induced elongation growth o f coleoptile and hypocotyl segments, were isolated from young leaves o f Helianthus annuus (Spring and Hager, Planta in press, 1982). These com pounds have an antibiotic effect on gram-negative and gram -positive bacteria as 
  Reference    Z. Naturforsch. 37c, 1087—1091 (1982); received August 31 1982 
  Published    1982 
  Keywords    Helianthus annuus, C om positae, Sesquiterpene Lactones, Antimicrobial Activity, Cytotoxicity 
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 TEI-XML for    default:Reihe_C/37/ZNC-1982-37c-1087.pdf 
 Identifier    ZNC-1982-37c-1087 
 Volume    37