Results 81 to 90 of about 2,768 (199)

The Nitrogen-Fixing Bacteria—Effective Enhancers of Growth and Chemical Composition of Egyptian Henbane under Varied Mineral N Nutrition

open access: yesAgronomy, 2020
Egyptian henbane (Hyoscyamus muticus L.) plants are rich sources of alkaloids used in pharmaceutical products. Recently, rising efforts have been devoted to reducing mineral fertilizer supply, production cost, and environmental pollution via decreasing ...
Rania M. A. Nassar   +4 more
doaj   +1 more source

Inhibition of cholinergic contractions of rat ileum by tropane-type alkaloids present in Schizanthus hookeri [PDF]

open access: yes, 2013
The relative lack of specificity of atropine as a competitive antagonist of muscarinic receptors is a frequent cause of undesirable parasympathetic side effects.
Muñoz Muñoz, Orlando   +6 more
core   +1 more source

Tabernaemontana catharinensis: A Source of Indole Alkaloids With Potential Activity as Chemotherapeutic Agents

open access: yesChemistry &Biodiversity, Volume 23, Issue 4, April 2026.
ABSTRACT This study aimed to evaluate the antitumor activity of fractions rich in indole alkaloids extracted from the leaves of the species Tabernaemontana catharinensis. The chemical composition was analyzed using high‐resolution mass spectrometry (HRMS), which identified nine known indole alkaloids, including voacangine, voacangine hydroxyindolenine,
Ana Júlia Gomes Donada   +5 more
wiley   +1 more source

Determination of the main tropane alkaloids from transformed Hyoscyamus muticus plants by capillary zone electrophoresis [PDF]

open access: yes, 1998
A capillary zone electrophoretic method (CZE) was developed using an uncoated fused silica capillary for the separation and determination of the main tropane alkaloids.
Eeva, Manu   +5 more
core   +1 more source

Structural and synthetic studies of some pyrrolidine, tropane and bisbenzylisoquinoline alkaloids [PDF]

open access: yes, 1979
A detailed phytochemical examination of the alkaloid content of four species of the family Proteaceae - Bellendena montana, Darlingia darlingiana, Darlingia ferruginea and Agastachys odorata - has been undertaken.
Leow, Huck Meng (15929876)
core   +1 more source

Optimization of Extraction Method of Hyoscine from Hyoscyamus niger L.

open access: yesJournal of Medicinal Plants, 2010
Background: Hyoscyamus niger L. from Solanaceae is an important pharmacological plant which contains tropane alkaloids. tropane alkaloids constitute one distinct group of secondary metabolites of the Solanaceae.
R Ghafarzadegan   +5 more
doaj  

Tropinone synthesis via an atypical polyketide synthase and P450-mediated cyclization

open access: yesNature Communications, 2018
Tropinone is an intermediate in the biosynthesis of tropane alkaloids. Here, the authors discovered the enzymes AbPYKS and AbCYP82M3, a non-canonical polyketide synthase and a cytochrome P450, that work sequentially to form tropinone from N-methyl-Δ1 ...
Matthew A. Bedewitz   +3 more
doaj   +1 more source

Schizanthines N, O, and P, Tropane Alkaloids from the Aerial Parts of Schizanthus tricolor [PDF]

open access: yes, 2010
Artículo de publicación ISIThree tropane alkaloids, named schizanthines N, O, and P (1-3), have been isolated from the crude alkaloid extract of the endemic Chilean plant Schizanthus tricolor.
Philippe Christen   +12 more
core   +1 more source

Quantitative Assessment of Hyoscyamine and Scopolamine Tropane Alkaloids in Root and Shoot of Hyoscyamus spp. from Iran

open access: yesJournal of Medicinal Plants, 2015
Background: Different species of Hyoscymaus are rich sources of tropane alkaloids, especially hyoscyamine and scopolamine. These compounds medicinally are important tropane alkaloids that exclusively are produced by plants.
F Fattahi   +6 more
doaj  

Schizanthines N, O, and P, Tropane Alkaloids from the Aerial Parts of Schizanthus tricolor [PDF]

open access: yes, 2016
Three tropane alkaloids, named schizanthines N, O, and P (1−3), have been isolated from the crude alkaloid extract of the endemic Chilean plant Schizanthus tricolor.
Philippe Christen (1401454)   +5 more
core   +1 more source

Home - About - Disclaimer - Privacy