Results 211 to 220 of about 84,172 (271)
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Influence of Genotype and Harvest Time on the Cynara cardunculus L. Sesquiterpene Lactone Profile.
Journal of Agricultural and Food Chemistry, 2019The excessive and inappropriate application of herbicides has caused environmental pollution. The use of allelochemicals as bioherbicides could provide a solution to this problem. The allelopathic activity of Cynara cardunculus L.
A. Scavo +5 more
semanticscholar +1 more source
Tetrahedron, 1979
Abstract A novel synthesis of (± )-Vernolepin ( 1 ) is described. A suitably substituted cis -fused 2-oxa-3-decalone precursor ( 29 ) has been constructed starting from 2,5-cyclohexadiene carboxylic acid via an intramolecular cyclopropanation reaction ( 23 to 18 ).
M. Vandewalle +4 more
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Abstract A novel synthesis of (± )-Vernolepin ( 1 ) is described. A suitably substituted cis -fused 2-oxa-3-decalone precursor ( 29 ) has been constructed starting from 2,5-cyclohexadiene carboxylic acid via an intramolecular cyclopropanation reaction ( 23 to 18 ).
M. Vandewalle +4 more
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Metabolism of antimalarial sesquiterpene lactones
Pharmacology & Therapeutics, 1990Metabolism of artemisinin derivatives, which are antimalarial sesquiterpenes, appeared to lead to the production of the more polar metabolites in general. Presence of the endoperoxide moiety in the A/B ring structure seems crucial for the expression of antimalarial activity of these compounds.
Charles D. Hufford, Ik-Soo Lee
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ACS Chemical Biology, 2018
Sesquiterpene lactones are a class of natural compounds well-known for their bioactivity and are characteristic for the Asteraceae family. Most sesquiterpene lactones are considered derivatives of germacrene A acid (GAA).
Maximilian Frey +3 more
semanticscholar +1 more source
Sesquiterpene lactones are a class of natural compounds well-known for their bioactivity and are characteristic for the Asteraceae family. Most sesquiterpene lactones are considered derivatives of germacrene A acid (GAA).
Maximilian Frey +3 more
semanticscholar +1 more source
2003
The sesquiterpene lactone mix (SL mix) consists of 3 allergens: alantolactone, costunolide, dehydrocostus lactone.
Paulsen, E., Andersen, K.E.
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The sesquiterpene lactone mix (SL mix) consists of 3 allergens: alantolactone, costunolide, dehydrocostus lactone.
Paulsen, E., Andersen, K.E.
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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 =
M. Hoeneisen +3 more
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Tetrahedron, 1983
Abstract Two routes towards (±) quadrone ( 1 ), via an intramolecular Diels-Alder reaction have been studied. The cycloaddition of 5 failed, probably because of prohibitive strain. In the alternative approach, the key step afforded a mixture of the endo- and exo-adducts 6 and 7 .
J.M. Dewanckele +2 more
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Abstract Two routes towards (±) quadrone ( 1 ), via an intramolecular Diels-Alder reaction have been studied. The cycloaddition of 5 failed, probably because of prohibitive strain. In the alternative approach, the key step afforded a mixture of the endo- and exo-adducts 6 and 7 .
J.M. Dewanckele +2 more
openaire +2 more sources
Journal of Medicinal Food, 2017
Taraxacum officinale, the common dandelion, is a plant of the Asteraceae family, which is used as a food and medical herb. Various secondary plant metabolites such as sesquiterpene lactones, triterpenoids, flavonoids, phenolic acids, coumarins, and ...
T. Esatbeyoglu +5 more
semanticscholar +1 more source
Taraxacum officinale, the common dandelion, is a plant of the Asteraceae family, which is used as a food and medical herb. Various secondary plant metabolites such as sesquiterpene lactones, triterpenoids, flavonoids, phenolic acids, coumarins, and ...
T. Esatbeyoglu +5 more
semanticscholar +1 more source
Sesquiterpene lactones from Artemisia mongolica
Phytochemistry, 2022Twelve undescribed sesquiterpene lactones and seven known sesquiterpene lactones were isolated from the whole plant of Artemisia mongolica. Their structures were elucidated based on the interpretation of NMR, HRESIMS, and electronic circular dichroism (ECD) data.
Ziwei Zhu +2 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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