Results 31 to 40 of about 31,700 (240)

UVA photoactivation of harmol enhances its antifungal activity against the phytopathogens Penicillium digitatum and Botrytis cinerea [PDF]

open access: yes, 2017
Phytopathogenic fungi responsible for post-harvest diseases on fruit and vegetables cause important economic losses. We have previously reported that harmol (1-methyl-9H-pyrido[3,4-b]indol-7-ol) is active against the causal agents of green and gray molds
Cabrerizo, Franco Martín   +5 more
core   +1 more source

Alkaloids in Marine Algae

open access: yesMarine Drugs, 2010
This paper presents the alkaloids found in green, brown and red marine algae. Algal chemistry has interested many researchers in order to develop new drugs, as algae include compounds with functional groups which are characteristic from this particular ...
Ekrem Sezik   +2 more
doaj   +1 more source

Herbal highs: review on psychoactive effects and neuropharmacology [PDF]

open access: yes, 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
core   +1 more source

Analgesic monoterpene indole alkaloids from Gelsemium elegans stems

open access: yesJournal of Holistic Integrative Pharmacy, 2022
Objective: The aim of this study is to search for potent analgesics from the stems of Gelsemium elegans. Methods: Alkaloids were isolated from the samples of G.
Pengfei JIN   +7 more
doaj   +1 more source

Chemical and photochemical properties of chloroharmine derivatives in aqueous solutions [PDF]

open access: yes, 2016
Thermal and photochemical stability (ΦR), room temperature UV-vis absorption and fluorescence spectra, fluorescence quantum yields (ΦF) and lifetimes (τF), quantum yields of hydrogen peroxide (ΦH2O2) and singlet oxygen (ΦΔ) production, and triplet ...
Cabrerizo, Franco Martín   +7 more
core   +1 more source

Rigorous Biogenetic Network for a Group of Indole Alkaloids Derived from Strictosidine

open access: yesMolecules, 2008
: Strictosidine, the precursor of more than 2,500 indole alkaloids, was isolated from four species of three plant families. By searching the Dictionary of Natural Products on DVD it was found that about 150 indole alkaloids were obtained from the same ...
László F. Szabó
doaj   +1 more source

AASLD practice guidance on drug, herbal, and dietary supplement–induced liver injury

open access: yes, 2022
Hepatology, EarlyView.
Robert J. Fontana   +6 more
wiley   +1 more source

Alcalóides indólicos isolados de espécies do gênero Aspidosperma (Apocynaceae) Indole alkaloids from species of the Aspidosperma (Apocynaceae) genus

open access: yesQuímica Nova, 2007
Species from genus Aspidosperma (Apocynaceae) are popularly employed to treat various diseases. This genus is characterized by the occurrence of indole alkaloids.
Maria de M. Pereira   +4 more
doaj   +1 more source

Total Synthesis of the Spirocyclic Bis‐Indole Alkaloid (−)‐Owerreine via a [4+2] Annulation

open access: yesAngewandte Chemie, EarlyView.
The 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.
Elisa Coll   +4 more
wiley   +2 more sources

Countercurrent chromatography in analytical chemistry (IUPAC technical report) [PDF]

open access: yes, 2009
© 2009 IUPACCountercurrent chromatography (CCC) is a generic term covering all forms of liquid-liquid chromatography that use a support-free liquid stationary phase held in place by a simple centrifugal or complex centrifugal force field. Biphasic liquid
Abbey   +112 more
core   +2 more sources

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