Results 11 to 20 of about 297,330 (349)

Analysis of alkaloids (indole alkaloids, isoquinoline alkaloids, tropane alkaloids)

open access: yesRecent Advances in Natural Products Analysis, 2020
Alkaloids are a large cluster of molecules found in Mother Nature all over the world. They are all secondary compounds and collection of miscellaneous elements and biomolecules, derived from amino acids or from transamination. This diverse chemical group is categorized, based on the amino acids that deliver their nitrogen atom and part of their ...
Prasanta Dey   +7 more
semanticscholar   +2 more sources

Acute and Chronic Toxicity of Indole Alkaloids from Leaves of Alstonia scholaris (L.) R. Br. in Mice and Rats

open access: yesNatural Products and Bioprospecting, 2020
Alstonia scholaris (L.) R. Br. (Apocynaceae) is an evergreen tree that has been used to treat lung diseases. In this study, the toxicity profile of indole alkaloids from leaves of A. scholaris was investigated.
Yun-Li Zhao   +10 more
doaj   +2 more sources

Three New Indole Alkaloids from Tabernaemontana divaricata [PDF]

open access: diamondNatural Products and Bioprospecting, 2018
Three new monoterpene indole alkaloids, 3α-hydroxymethyl-ibogamine (1), 3α-acetatemethoxyl-ibogamine (2), 16α-hydroxyl-ibogamine (3) together with six known alkaloids were isolated from the branches and leaves of Tabernaemontana divaricata (Apocynaceae).
Yan Deng   +4 more
doaj   +2 more sources

Exploration of Indole Alkaloids from Marine Fungus Pseudallescheria boydii F44-1 Using an Amino Acid-Directed Strategy

open access: yesMarine Drugs, 2019
The composition of the culture medium has great influence on the metabolite production of the marine fungus Pseudallescheria boydii F44-1. By adding amino acids to GPY culture medium, two new bisindole alkaloids, pseudboindoles A and B (1 and 2 ...
Mei-Xiang Yuan   +7 more
doaj   +2 more sources

Indole Alkaloids from Fischerella Inhibit Vertebrate Development in the Zebrafish (Danio rerio) Embryo Model [PDF]

open access: goldToxins, 2014
Cyanobacteria are recognized producers of toxic or otherwise bioactive metabolite associated, in particular, with so-called “harmful algal blooms” (HABs) and eutrophication of freshwater systems.
Katherine Walton   +4 more
doaj   +2 more sources

A Systematic Review of Analytical Methods for Quantification of Natural Indole Alkaloids from Catharanthus and Rauvolfia Species [PDF]

open access: yesResearch Journal of Pharmacognosy, 2023
Indole alkaloids are a class of alkaloids enclosing a structural moiety of indole; numerous indole alkaloids also comprise isoprene groups and are thus named terpene indole or secologanin tryptamine alkaloids and have more than 4100 identified diverse ...
Lakshmipriya Murugesan   +2 more
doaj   +1 more source

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