Results 21 to 30 of about 1,103 (171)

Potentiating Biosynthesis of Alkaloids and Polyphenolic Substances in Catharanthus roseus Plant Using ĸ-Carrageenan

open access: yesMolecules, 2023
Catharanthus roseus is a medicinal plant that produces indole alkaloids, which are utilized in anticancer therapy. Vinblastine and vincristine, two commercially important antineoplastic alkaloids, are mostly found in the leaves of Catharanthus roseus.
Hossam S. El-Beltagi   +11 more
doaj   +1 more source

Attempted Synthesis of Vinca Alkaloids Condensed with Three-Membered Rings

open access: yesMolecules, 2018
Our successful work for the synthesis of cyclopropanated vinblastine and its derivatives by the Simmons–Smith reaction was followed to build up further three-membered rings into the 14,15-position of the vindoline part of the dimer alkaloid ...
András Keglevich   +8 more
doaj   +1 more source

Catharanthus roseus (L.) G. Don - plant regeneration and alkaloids content

open access: yesActa Societatis Botanicorum Poloniae, 2014
We describe here a regeneration of plantlets of Catharanthus roseus (L.) G. Don from shoot tips and axillary buds. Shoot tips were excised from 7-day-old seedlings and were incubated in solid Nitsch and Nitsch (NN) medium supplemented with kinetin ...
Mirosława Furmanowa   +3 more
doaj   +1 more source

Addition of Vindoline to p-Benzoquinone: Regiochemistry, Stereochemistry and Symmetry Considerations

open access: yesMolecules, 2021
Vindoline and catharanthine are the major alkaloids of Catharanthus roseus and are extracted in large quantities to prepare the pharmaceutically important Vinca type alkaloids vincaleukoblastine, vincristine and navelbine.
Shamsher Ali   +3 more
doaj   +1 more source

Disrupting Substance Use Disorder: The Chemistry of Iboga Alkaloids. [PDF]

open access: yesEuropean J Org Chem
The iboga alkaloid class of monoterpene indole alkaloids have long inspired synthetic chemists in their structural complexity and dense functionalization. Their unique anti‐addictive properties have propelled this class of natural products into potential lead compounds for drug discovery efforts as well.
Hughes AJ, Hamelink CR, Townsend SD.
europepmc   +2 more sources

A Simplified Procedure for Indole Alkaloid Extraction from Catharanthus roseus Combined with a Semi-synthetic Production Process for Vinblastine

open access: yesMolecules, 2007
Dried leaves of Catharanthus roseus were extracted with aqueous acidic 0.1 M solution of HCl. Alkaloid-embonate complexes were obtained as precipitates by treating the extract with an alkaline (NaOH) solution of embonic acid (4,4-methylene-bis-3 ...
Marja-Liisa Riekkola   +4 more
doaj   +1 more source

Eliciting Effect of Catharanthine on the Biosynthesis of Vallesiachotamine and Isovallesiachotamine in Cambial Meristematic Cells

open access: yesNatural Product Communications, 2018
Vallesiachotamine and isovallesiachotamine are pharmacologically active monoterpene indole alkaloids produced by Catharanthus roseus . However, the biosynthetic pathway for these two alkaloids has not been characterized.
Jianhua Zhu   +6 more
doaj   +1 more source

Virtual Screening of Alkaloid and Terpenoid Inhibitors of SMT Expressed in Naegleria sp.

open access: yesMolecules, 2022
The pathogenic form of thermophilic Naegleria sp. i.e., Naegleria fowleri, also known as brain eating amoeba, causes primary amoebic encephalitis (PAM) with a >97% fatality rate.
Jason Abraham, Neha Chauhan, Supriyo Ray
doaj   +1 more source

DNA Binding Studies of Vinca Alkaloids: Experimental and Computational Evidence

open access: yesNatural Product Communications, 2012
Fluorescence studies on the indole alkaloids vinblastine sulfate, vincristine sulfate, vincamine and catharanthine have demonstrated the DNA binding ability of these molecules.
Prateek Pandya   +5 more
doaj   +1 more source

Effects of PEG-induced drought stress on regulation of indole alkaloid biosynthesis in Catharanthus roseus

open access: yesJournal of Plant Interactions, 2017
Catharanthus roseus (C. roseus) plants were used to investigate the terpenoid indole alkaloids (TIAs) accumulation under the condition of PEG-induced drought stress.
Ying Liu   +4 more
doaj   +1 more source

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