Journal ArticleDOI
Sesquiterpene lactones of Calea zacatechichi and C. urticifolia
Werner Herz,Narendra Kumar +1 more
TLDR
Calea zacatechichi yielded the sesquiterpene lactone zexbrevin and a new analog, several analogs of neurolenin B including calein A, two analog of budlein A and the flavones acacetin and O-methylacacetin this paper.About:
This article is published in Phytochemistry.The article was published on 1980-01-01. It has received 50 citations till now. The article focuses on the topics: Sesquiterpene lactone & Neurolenin B.read more
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Sesquiterpene lactones as taxonomic characters in the asteraceae
TL;DR: The tribal, subtribal and generic distribution of sesquiterpene lactones is examined, the compounds’ utility as taxonomic characters discussed and the biogenetically based methodology shows the efficacy of this analytical methodology.
Book
Flavonoids of the Sunflower Family (Asteraceae)
Bruce A. Bohm,Tod F. Stuessy +1 more
TL;DR: The Flavonoids as Indicators of the Evolutionary Process and Hybridization and Introgression and Flavonoid Relationships with other Families.
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α-Glucosidase Inhibitors from Brickellia cavanillesii
Sonia Escandón-Rivera,Martín González-Andrade,Robert Bye,Edelmira Linares,Andrés Navarrete,Rachel Mata +5 more
TL;DR: An aqueous extract from the aerial parts of Brickellia cavanillesii attenuated postprandial hyperglycemia in diabetic mice during oral glucose and sucrose tolerance tests and showed potent inhibitory activity against yeast α-glucosidase.
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The Experience Elicited by Hallucinogens Presents the Highest Similarity to Dreaming within a Large Database of Psychoactive Substance Reports.
TL;DR: Novel quantitative analyses are applied to a large volume of empirical data to confirm the hypothesis that, among all psychoactive substances, hallucinogen drugs elicit experiences with the highest semantic similarity to those of dreams.
Journal ArticleDOI
Sesquiterpene lactones and other constituents from Eremanthus seidelii, E. Goyazensis and Vanillosmopsis erythropappa
Walter Vichnewski,Angela Mayumi Takahashi,Ana Maria Tucci Turco Nasi,Dioneia C. Rodrigues,Gomes Goncalves,Diones Aparecida Dias,J N C Lopes,Virgil L. Goedken,Alicia B. Gutiérrez,Werner Herz +9 more
TL;DR: In this paper, E. seidelii and E. goyazensis differ in C-4 stereochemistry from isomers previously isolated from Eremanthus and related species.
References
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Tithonia diversifoliaのセスキテルペンラクトン タギチニンと関連化合物の立体化学
Baruah N C,Sharma R P,Madhusudanan K P,Gopalakrishna Thyagarajan,Werner Herz,Ramaswamy Murari +5 more
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Goyazensolide, a schistosomicidal heliangolide from Eremanthus goyazensis
TL;DR: Isolation and structure determination of goyazensolide, a new heliangolide responsible for the schistosomicidal properties of Eremanthus Goyazensis Sch.-Bip, is reported in this paper.
Journal ArticleDOI
The germacranolides of Viguiera buddleiaeformis structures of budlein-A and -B
TL;DR: The structure of the main sesquiterpene lactone of Viguiera buddleiaeformis was established as the 8 angeloyl ester of 1 keto, 8β, 14-dihydroxy germacra-2,4,11 (13)-trien-3, (10 β) oxido-6 α, 12-olide as discussed by the authors.
Journal ArticleDOI
New germacranolides from Isocarpha species
TL;DR: In this paper, the investigation of two Isocarpha species has yielded eight new germacranolides most of them belonging to the heliangolides, and a new dihydroeuparine derivative was isolated.