Results 111 to 120 of about 97,347 (301)

Sesquiterpene lactones from Tanacetum argenteum

open access: yesPhytochemistry, 1994
Abstract The flowers of Tanacetum argenteum subsp. argenteum yielded two new germacranolides, in addition to some known sesquiterpene lactones. The structures were elucidated by spectral methods and chemical transformations. 8α-Angeloyloxycostunolide showed cytotoxic activity and antifeedant activity against neonate larvae of Spodoptera ...
GOREN, N   +5 more
openaire   +2 more sources

Thiophene Derivatives as Versatile Precursors for (Hetero)Arene and Natural Product Synthesis

open access: yesAngewandte Chemie International Edition, Volume 65, Issue 5, 28 January 2026.
Hidden but Powerful: Thiophenes and their saturated analogues have been demonstrated to be versatile C4‐building blocks that can be rapidly applied to natural product synthesis and the construction of functionalized (hetero)arenes. This minireview aims to provide a concise overview of the strategies and implementations of these sulfur‐containing ...
Anna Keimer, Franz‐Lucas Haut
wiley   +1 more source

Sesquiterpene lactones from Centaurea tweediei

open access: yesBiochemical Systematics and Ecology, 2001
Aerial parts of Centaurea tweediei from Argentina afforded as the main constituent the sesquiterpene lactone onopordopicrin and minor amounts of a new heliangolide, a new guaianolide, a new eudesmanolide, a new eudesmane acid and the lignans arctigenin and matairesinol.
Fortuna, Antonio Mario   +4 more
openaire   +3 more sources

The Synergistic Effect of SAHA and Parthenolide in MDA-MB231 Breast Cancer Cells [PDF]

open access: yes, 2015
The sesquiterpene lactone Parthenolide (PN) exerted a cytotoxic effect on MDA-MB231 cells, a triple-negative breast cancer (TNBC) cell line, but its effectiveness was scarce when employed at low doses.
Baldwin   +49 more
core   +1 more source

EM2, a Natural Product MST1/2 Kinase Activator, Suppresses Non‐Small Cell Lung Cancer via Hippo Pathway Activation

open access: yesAdvanced Science, Volume 13, Issue 1, 5 January 2026.
EM2 directly binds to and activates MST1/2, enhancing their kinase activity and sequentially promoting LATS phosphorylation, which increases YAP phosphorylation. Consequently, YAP nuclear translocation is suppressed, leading to reduced transcription of downstream targets CTGF and CYR61, ultimately exerting a robust inhibitory effect on NSCLC cell ...
Siyu Yang   +15 more
wiley   +1 more source

Artemísia. [PDF]

open access: yes, 2011
bitstream/CPATC-2009-09/20742/1/doc_144 ...
CARVALHO, L. M. de
core  

Artabolide a novel polar auxin transport inhibitor isolated from Artemisia absinthium [PDF]

open access: yes, 2013
journal ...
Arai Tsukasa   +9 more
core   +1 more source

Prospects for the use of natural terpenoids in agriculture [PDF]

open access: yesBIO Web of Conferences
As a result of the conducted phytochemical studies of sesquiterpene lactones of some plants of the genus Artemisia, Centaurea, Jurinea, and Handelia of the Asteraceae family and the study of biostimulating, mutagenic, and insecticidal activity of ...
Mukhidova Zulfiya Sh.   +3 more
doaj   +1 more source

Tenulin 0.25-hydrate, a sesquiterpene lactone isolated from Helenium amarum

open access: yesActa Crystallographica Section E, 2013
The asymmetric unit of the title compound, C17H22O5·0.25H2O [systematic name: 2-hydroxy-2,2a,6,9a-tetramethyl-2a,4a,5,6,6a,9a,9b,9c-octahydro-2H-1,4-dioxadicyclopent[cd,f]azulene-3,9-dione 0.25-hydrate], a natural product isolated from Helenium ...
Bruce Noll   +3 more
doaj   +1 more source

Allelopathic effects of Parthenium hysterophorus L - Part IV. Identification of inhibitors [PDF]

open access: yes, 1980
Analysis of the inhibitors from allelopathic species of Parthenium hysterophorus L. revealed that sesquiterpene lactones and phenolics formed an important group of water soluble compounds involved in allelopathy.
Jayachandra, ., Kanchan, S.D.
core   +1 more source

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