Journal ArticleDOI
Sequiterpenes from Ageratina tomentella
Nianbai Fang,Tom J. Mabry +1 more
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TLDR
Ageratina tomentella has been investigated for sesquiterpene lactones, including 11,13-dehydro-8β-tigloyloxy-eleman-12-oic acid as discussed by the authors.About:
This article is published in Phytochemistry.The article was published on 1988-01-01. It has received 12 citations till now. The article focuses on the topics: Ageratina & Tomentella.read more
Citations
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Book ChapterDOI
Carbon-13 NMR Spectra of Sesquiterpene Lactones
M. Buděšínský,D. Šaman +1 more
TL;DR: In this article, the carbon-13 NMR data of sesquiterpene lactones were used for structure classification and methods of structure determination, and the most important methods discussed were: mass spectra, infrared, ultraviolet, NMR and X-ray.
Journal ArticleDOI
Inhibitory effects of sesquiterpene lactones isolated from Eupatorium chinense L. on IgE-mediated degranulation in rat basophilic leukemia RBL-2H3 cells and passive cutaneous anaphylaxis reaction in mice.
Tomohiro Itoh,Masayoshi Oyama,Norihiko Takimoto,Chihiro Kato,Yoshinori Nozawa,Yukihiro Akao,Munekazu Iinuma +6 more
TL;DR: Sesquiterpene lactones would be a candidate as an anti-allergic agent because of the suppression of Ag-stimulated degranulation by these SQTLs is mainly due to the decreased Ca(2+) influx.
Journal ArticleDOI
Chromenes from Ageratina arsenii and revised structures of two epimeric chromene dimers
TL;DR: Agrostophyllin, the first naturally occurring phenanthropyran derivative, was isolated from the orchid Agroophyllum khasiyanum as mentioned in this paper, and it was shown to be a phenotypic indicator of the presence of humans.
Journal ArticleDOI
The application of Bayes' theorem in natural products as a guide for skeletons identification
TL;DR: An algorithm in PROLOG language is wrote, which computes conditional probabilities for finding skeletons types of sesquiterpene lactones in any taxon, using botanic information as input, and the results are accurate enough to allow good skeletons identification, even for the most complex chemical compound.
Journal ArticleDOI
Chemical Constituents of Ximenia Americana
Mônica Regina Silva de Araújo,João Carlos da Costa Assunção,Ivana N. F. Dantas,Letícia V. Costa-Lotufo,Francisco José Queiroz Monte +4 more
TL;DR: Two steroids (1 and 2), five pentacyclic triperpenoids (3–7), and a new furanosesquiterpene (8) were isolated from the stems of Ximenia americana, family Olacaceae, establishing structures of the compounds by spectral data.
References
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Flavonols and Flavonol Glycosides from Eupatorium areolare var. leiocarpum
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Sesquiterpene lactones of Neohintonia monantha
TL;DR: The aerial parts of Neohintonia monantha afforded a new liacylindrolide derivative, in addition to LiL-Lite itself which was previously isolated from Liatris cylindracea as mentioned in this paper.
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Flavonoids of Asanthus, a Segregate Genus of Brickellia
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