Results 41 to 50 of about 1,516 (198)

Antemitotic activity of strychnopentamine, a bisindolic alkaloid

open access: yesJournal of Ethnopharmacology, 1984
Strychnopentamine has been tested for its cytotoxic and antitumor activities and compared with two other bisindolic alkaloids that possess an usambarane skeleton. The presence of a N-methylpyrrolidine group increases the antimitotic activity of this type of alkaloids.
Tits, Monique   +4 more
openaire   +3 more sources

Antimicrobial activities of secondary metabolites of endophytic fungi isolated from Catharanthus roseus [PDF]

open access: yes, 2017
Introduction: Recently, several endophytes have been shown to possess the potentials to synthesize novel bioactive compounds that have found use for drug discovery. We isolated endophytic fungi associated with Catharanthus roseus collected from the river
Abba, Chika C.   +6 more
core   +2 more sources

Cell type matters : competence for alkaloid metabolism differs in two seed-derived cell strains of Catharanthus roseus [PDF]

open access: yes, 2023
Since the discovery of the anticancer drugs vinblastine and vincristine, Catharanthus roseus has been intensively studied for biosynthesis of several terpene indole alkaloids (TIAs).
Bunzel, Mirko   +7 more
core   +1 more source

Spasmolytic Effect of Caulerpine Involves Blockade of Ca2+ Influx on Guinea Pig Ileum

open access: yesMarine Drugs, 2013
In this work, we investigated the spasmolytic effect of caulerpine, a bisindole alkaloid isolated from marine algae of the Caulerpa genus, on guinea pig ileum.
Magna Suzana Alexandre-Moreira   +9 more
doaj   +1 more source

Review: Marine natural products [PDF]

open access: yes, 2005
This review covers the literature published in 2003 for marine natural products, with 619 citations (413 for the period January to December 2003) referring to compounds isolated from marine microorganisms and phytoplankton, green algae, brown algae, red ...
Blunt, John W.   +4 more
core   +3 more sources

Phenotype Screening of an Azole-bisindole Chemical Library Identifies URB1483 as a New Antileishmanial Agent Devoid of Toxicity on Human Cells [PDF]

open access: yes, 2021
We report the evaluation of a small library of azole-bisindoles for their antileishmanial potential, in terms of efficacy on Leishmania infantum promastigotes and intracellular amastigotes. Nine compounds showed good activity on L.
Buffi G.   +10 more
core   +4 more sources

Screening for Bioactive Compounds from Algae [PDF]

open access: yes, 2012
At present, functional foods are seen as a good alternative to maintain or even improve human health, mainly for the well-known correlation between diet and health.
Herrero, Miguel   +3 more
core   +2 more sources

Cell type matters: competence for alkaloid metabolism differs in two seed-derived cell strains of Catharanthus roseus [PDF]

open access: yes, 2022
Since the discovery of the anticancer drugs vinblastine and vincristine, Catharanthus roseus has been intensively studied for biosynthesis of several terpene indole alkaloids (TIAs).
Bunzel, Mirko   +7 more
core   +2 more sources

From Racemic to Enantioselective Total Synthesis of Trigonoliimines via Development of an Organocatalytic Enantioselective Michael Addition of ?-Aryl-?-isocyanoacetate to Vinyl Phenyl Selenone

open access: yesCHIMIA, 2014
Trigonoliimines are hexacyclic bisindole alkaloids isolated recently by Hao and co-workers. A synthesis of (±)-trigonoliimine B was accomplished in seven steps from simple starting materials featuring the Bischler-Napieralski reaction for ...
Thomas Buyck, Qian Wang, Jieping Zhu
doaj   +1 more source

Photochemical Approaches to Complex Chemotypes: Applications in Natural Product Synthesis. [PDF]

open access: yes, 2016
The use of photochemical transformations is a powerful strategy that allows for the formation of a high degree of molecular complexity from relatively simple building blocks in a single step. A central feature of all light-promoted transformations is the
Kärkäs, Markus D.   +2 more
core   +2 more sources

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