Results 11 to 20 of about 30,006 (268)
Total Synthesis of the Spirocyclic Bis-Indole Alkaloid (-)-Owerreine via a [4+2] Annulation. [PDF]
Angew Chem Int Ed EnglThe total synthesis of the bis‐indole alkaloid (−)‐owerreine has been accomplished by a diastereoselective [4+2] annulation between an enamine and an α,β−unsaturated indolenine precursor to form the 3‐spirocyclic tetrahydropyridine linkage of the natural product. DFT calculations allow an understanding of the mechanism of the key annulation.
Coll E +4 more
europepmc +3 more sources
Plants, 2021 Cell and tissue cultures of Catharanthus roseus have been studied extensively as an alternative strategy to improve the production of valuable secondary metabolites. The purpose of this study was to produce C. roseus callus and suspension cell biomass of
Tran My Linh +6 more
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Toxins, 2015 The grass parasitic fungus Claviceps purpurea sensu lato produces sclerotia with toxic indole alkaloids. It constitutes several genetic groups with divergent habitat preferences that recently were delimited into separate proposed species.
Mariell Negård +5 more
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Herbal highs: review on psychoactive effects and neuropharmacology [PDF]
, 2017 Background: A new trend among users of new psychoactive substances’ the consumption of “herbal highs”: plant parts containing psychoactive substances.
Graziano, S +5 more
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ZZE-Configuration of chromophore ß-153 in C-phycocyanin from Mastigocladus laminosus [PDF]
, 1987 The photochemistry of C-phycocyanin has been studied after denaturation in the dark. It shows an irreversible reaction which has characteristics of a Ζ,Ζ,Ε- to Z,Z,Z-isomerization of dihydrobilins. Its amplitude depends on the reaction conditions, with
Bode, W. +7 more
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New Indole Alkaloid from (Apocynaceae)
Natural Product Communications, 2012 A new indole alkaloid of the pyridocarbazole type, named 6 N -hydroxy-olivacine, and two known compounds, 2 N -oxide-olivacine and olivacine, were isolated from roots of Peschiera affinis . The structures of the compounds were determined by spectroscopic
Allana Kellen L. Santos +6 more
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Application of recombinant DNA technology to studies on plant secondary metabolism [PDF]
, 2001 This review which is concerned with the application of recombinant DNA technology to studies on plant secondary metabolism, presents the more common plant transformation strategies and shows how these genetic approaches are being used in attempts to ...
Yeoman, Michael M., Zárate, Rafael
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AASLD practice guidance on drug, herbal, and dietary supplement–induced liver injury
, 2022 Hepatology, EarlyView.
Robert J. Fontana +6 more
wiley +1 more source
Marine Drugs, 2012 One new alkaloid, 3-((6-methylpyrazin-2-yl)methyl)-1H-indole (1) was obtained from the deep-sea actinomycete Serinicoccus profundi sp. nov., along with five known compounds (2–6).
Yong-Hong Liu +7 more
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Chemical and Biological Technologies in Agriculture, 2023 Background Tobacco mosaic virus (TMV) is a harmful plant pathogen that causes a decline in the quality and yield of many economic crops. Natural products are important potential sources of biopesticides for the prevention and treatment of TMV. This study
Hua-Yin Liu +8 more
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