| | 1 | Author
| Günter Lang3, ClausM. Passreiter3 ', BeatrizE. Medinillab, Juan-Jose Castillo0 | Requires 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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| default:Reihe_C/55/ZNC-2000-55c-0511.pdf | | | | Identifier
| ZNC-2000-55c-0511 | | | | Volume
| 55 | |
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