Results 11 to 20 of about 28,684 (267)

Heteroatom-Containing Natural Sesquiterpene Lactones and Methods for their Obtaining

open access: yesEurasian Chemico-Technological Journal, 2013
This review shows the data about isolated heteroatom-containing sesquiterpene lactones from various genera of Asteraceae family, natural occurence, isolation methods and their biological activity.
S. M. Adekenov, G. A. Atazhanova
doaj   +1 more source

ANTI-BACTERIAL ACTIVITIES OF SOME ACTIVE CONSTITUENTS ISOLATED FROM PHLOMIS FLOCCOSA D. DON. [PDF]

open access: yesEgyptian Journal of Desert Research, 2016
  The present study aimed to evaluate the anti-bacterial activities (in vitro) of the total extract of 70% methanol and successive extractsof different organic solvents  (petroleum ether, chloroform, methanol, 50% methanol extracts),  and their isolated ...
Rehab Lotfy, Heba Abd El-Moaty
doaj   +1 more source

Anti-inflammatory sesquiterpene and triterpene acids from Mesona procumbens Hemsley

open access: yesFrontiers in Chemistry, 2022
Mesonaprocumbens Hemsley is a plant conventionally processed to provide popular food materials and herbal medicines in Asia. In this study, six triterpene acids, including five new ones (mesonaic acids D-H, 1–5), and one proximadiol-type sesquiterpene (7)
Hung-Tse Huang   +12 more
doaj   +1 more source

THE SESQUITERPENES. [PDF]

open access: yesJournal of the American Chemical Society, 1905
n ...
openaire   +1 more source

Toward the Synthesis of Pestalustaine A: Structural Revision and Formation of Original Strained Tricyclic Architectures

open access: yesAngewandte Chemie, EarlyView.
Our synthetic endeavor toward the total synthesis of the reported unprecedented tricyclic skeleton of the sesquiterpene pestalustaine A allowed us to perform divergent cyclizations of a bicyclo[4.4.1]undec‐3‐ene into complex tricyclic architectures and to revise the structure of the natural product.
Wei Cao   +12 more
wiley   +2 more sources

A dimeric sesquiterpene, gochnatiolide A [PDF]

open access: yesActa Crystallographica Section E Structure Reports Online, 2009
THE TITLE COMPOUND [SYSTEMATIC NAME: 5'a-hydroxy-1',3,6,8'-tetrakis(methylene)-3a,4,5,5',5'a,6,6',6a,7,7',7'a,8',9a,9b,10'a,10'b-hexadecahydrospiro[azuleno[4,5-b]furan-9(2H),3'-[3H]benz[1,8]azuleno[4,5-b]furan]-2,2',8,9'(1'H,3H,4'H)-tetrone acetone 0.92-solvate], C(30)H(30)O(7)·0.92C(3)H(6)O, is a dimeric sequiterpene formed by a cyclohexane system ...
Hui-Ping Xiong   +3 more
openaire   +3 more sources

Enhancing Enzyme Activity With Mutation Combinations Guided by Few‐Shot Learning and Causal Inference

open access: yesAngewandte Chemie, EarlyView.
We present an integrated workflow that predicts activity‐enhancing mutation combinations from minimal experimental data. By proposing in vivo unit yield (yield/expression) as a surrogate for kcat/Km through causal inference, and visualizing local activity landscape, it effectively guides product yield improvement. ABSTRACT Designing enzyme sequences to
Lin Guo   +15 more
wiley   +2 more sources

Retusone A, a Guaiane-Type Sesquiterpene Dimer from Wikstroemia retusa and Its Inhibitory Effects on Histone Acetyltransferase HBO1 Expression

open access: yesMolecules, 2022
Retusone A (1), a new sesquiterpene dimer consisting of two guaiane-type sesquiterpenoids, and oleodaphnal (2) were isolated from heartwood of Wikstroemia retusa (Thymelaeaceae).
Young Sook Yun   +13 more
doaj   +1 more source

Metabolic Engineering for the Biosynthesis of Pentalenene in the Rapidly Growing Bacterium Vibrio natriegens

open access: yesFermentation
Vibrio natriegens (V. natriegens) is an emerging synthetic biology chassis characterized by rapid growth, and its potential for the synthesis of sesquiterpenes (such as pentalenene) has not been developed.
Lujun Hu   +10 more
doaj   +1 more source

Corneal antinociceptive effect of (-)-α-bisabolol

open access: yesPharmaceutical Biology, 2017
Context: (-)-α-Bisabolol (BISA) is a sesquiterpene alcohol widely used as scent in cosmetic preparations, perfumes, shampoos, toilet soaps and other toiletries with potential for use in the pharmaceutical area.
Gisele Façanha Diógenes Teixeira   +2 more
doaj   +1 more source

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