منابع مشابه
Sesquiterpene lactones from Achillea chrysocoma and Achillea coarctata.
The aerial parts of A. chrysocoma and A. coarctata afforded 22 and 9 sesquiterpene lactones, respectively. All the compounds described are new for the studied species. The lactones 5, 6 and 12 are new for the genus Achillea.
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The aerial parts of Achillea setacea afforded, in addition of a rare monoterpene triol and 12 known sesquiterpene lactones, a new guaianolide containing an endoperoxide ring. Its structure was elucidated by spectral methods.
متن کاملSesquiterpene Lactones from Achillea
The species of genus Achillea, particularly those belonging to the Achillea millefolium group have received a lot of attention so far, due to their use in traditional medicine. Among the numerous chemical compounds isolated from the A. millefolium species, the sesquiterpene lactones are usually one of the major constituents (Seaman, 1982). Continuing our chemotaxonomic examination of Bulgarian ...
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The detailed investigation of a methanolic extract of aerial parts of Achillea nobilis resulted in the isolation of 10 flavonoids. A new C-glycosylflavone, luteolin-6-C-apiofuranosyl-(1'''-->2'')-glucoside, was isolated besides orientin, isoorientin, vitexin, isoschaftoside, luteolin-7-O-beta-glucuronide, luteolin-4'-O-beta-glucoside and quercetin-3-O-methyl ether and two rare flavonolglycoside...
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Einige Bemerkungenüber gewöhnliche Differentialgleichungen 1. Was sind Differentialgleichungen? Die Lösung der Gleichung x 2 + 3x + 2 = 0 ist eine (reelle oder komplexe) Zahl. (Welche?) In der linearen Algebra sucht man gewöhnlich als Lösungen ein Zahlentupel, d.h. einen Vektor des R n oder C n. Bei einer Differentialgleichung hingegen sucht man nicht nach einer Zahl oder einem Vektor, sondern ...
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ژورنال
عنوان ژورنال: Österreichische botanische Zeitschrift
سال: 1873
ISSN: 0029-8948,2199-6881
DOI: 10.1007/bf01615026