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Review of the analytical techniques for sesquiterpenes and sesquiterpene lactones
Journal of Chromatography A, 2002In this paper the analytical techniques of about the last 2 decades for sesquiterpenes including their lactones are reviewed. For sesquiterpenes, methods like GC, GC-EI-MS, GC-CI-MS, GC-MS-MS, GC-FT-IR, GC-UV, GC-AES, 13C-NMR, PY-GC-MS, HPLC, HPLC-TSP, SFE, SFC, SFC-UV are available, GC combined with MS is the most widespread.
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Sesquiterpene lactones from Lugoa revoluta
Biochemical Systematics and Ecology, 20010 ...
Triana, Jorge +5 more
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Sesquiterpene lactones of Centaurea scoparia
Phytochemistry, 1998From the ethanolic extract of the aerial parts of Centaurea scoparia four new sesquiterpene lactones, belonging to the guaiane class, were isolated and identified, together with a known germacranolide. The structures were elucidated by spectroscopic methods including one- and two-dimensional NMR studies.
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Sesquiterpene lactones in chemotaxonomy
Phytochemistry, 1966Abstract The utilization of guaianolides in chemotaxonomy is discussed, and some biosynthetic considerations are advanced.
Cornelius Steelink, Jeffrey C. Spitzer
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Ovatifolin, a sesquiterpene lactone
Journal of Crystal and Molecular Structure, 1977Ovatifolin, C17H22O5, is a sesquiterpene lactone isolated from the aerial parts ofPodanthus mitiqui Lindl. (Compositae) collected near Pichidangui, Chile. Extracts of the plant exhibit cytotoxic activity against KB cell cultures. The pale yellow crystals belong to the orthorhombic space groupP212121 with cell dimensionsa = 8.159(1),b = 6.640(1), andc =
E. M. Gopalakrishna +3 more
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A further sesquiterpene lactone esterified with a sesquiterpenic acid
Phytochemistry, 1982Abstract The roots of Hypochoeris oligocephala afforded in addition to known compounds a further sesquiterpene lactone esterified with a sesquiterpenic acid as well as the corresponding free acid.
Ferdinand Bohlmann +2 more
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The first sesquiterpene lactones esterified with a sesquiterpenic acid
Phytochemistry, 1981Abstract From Hypochoeris glabra two guaianolides esterified with an unusual sesquiterpenic acid were isolated. Proton-catalysed rearrangement of the cyclopropane derivative led to a phenolic acid. The structures were elucidated by high-field 1 H NMR spectroscopy. Further guaianolides were isolated from H. uniflora and Lactuca floridana . These
Ferdinand Bohlmann +3 more
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Sesquiterpene lactones from Achillea crithmifolia
Phytochemistry, 1991Abstract The isolation of guaianolides rupicolin-A, rupicolin-B, their acetates and a new germacranolide 1β,10α-epoxy-3β,9β-diacetoxy-11α,13-dihydrocostunolide, identified by means of PS DQF COSY and PS NOESY, from Achillea crithmifolia is reported. A flavonoid jaceidin was also isolated from the same extract.
Milosavljević, Slobodan +4 more
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Sesquiterpene Lactones Revisited
1995Sesquiterpene lactones are plant constituents often possessing a bitter taste which are common in most tribes of the Asteraceae (Compositae) and also are found in at least 14 other angiosperm families and to a limited extend in gymnosperms, liverworts and fungi.1 There are more than 4,000 known structures in this class of plant secondary metabolites ...
Robin J. Maries +5 more
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Sesquiterpene lactones from Anthemis plutonia
Phytochemistry, 1998Aerial parts of Anthemis plutonia furnished three guaianolides, one of them new.
Maurizio, Bruno +4 more
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