Results 101 to 110 of about 18,858 (204)
Amaryllidoideae produce specific specialized metabolites called Amaryllidaceae alkaloids (AAs), known for their pharmacological potential. The spatial distribution and biosynthesis within plant tissues, however, remain poorly understood.
Nuwan Sameera Liyanage +5 more
doaj +1 more source
Cytotoxicity Studies of Lycorine Alkaloids of the Amaryllidaceae
The plant family Amaryllidaceae is renowned for its unique alkaloid constituents which possess a significant array of structural diversity. Several of these alkaloids are known for their interesting biological properties, of which galanthamine and ...
Jerald J. Nair, Johannes van Staden
doaj +1 more source
Precursor-directed biosynthesis of non-natural berberine and galanthamine analogues
Precursor-directed biosynthesis and mutasynthesis are two methods which utilize nature’s machinery to produce complex natural product analogues. The berbine-producing Berberis Stenophyllia and galanthamine-producing daffodils are chosen as model ...
Speltz, Tom E
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Acetylcholinesterase inhibition by somes promising Brazilian medicinal plants
A microplate assay and a thin-layer chromatography (TLC) "in situ" assay based on the Ellman assay was used to screen for acetylcholinesterase inhibitors from ethyl acetate and methanol extracts of Brazilian medicinal plants of families that, according ...
CM. Feitosa +4 more
doaj +1 more source
Esenbeckia leiocarpa Engl. (Rutaceae), popularly known as guarantã, goiabeira, is a native tree from Brazil. Bioactivity-guided fractionation of the ethanol stems extract afforded the isolation of six alkaloids: leiokinine A, leptomerine, kokusaginine ...
Elaine Monteiro Cardoso-Lopes +8 more
doaj +1 more source
Galanthamin és származékai szintézise = Synthesis of galanthamine and its derivatives
Az Amaryllidacea alkaloid (-)-galanthamin szelektív acetilkolinészteráz inhibítor. Az Alzheimer-kór kezelése során pozitív hatással van a kognitív teljesítményre (tanulás, emlékezés folyamata), a mindennapi élet tevékenységeire és magatartási zavarokra.
Hazai, László +2 more
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New Gold in Them Thar Hills: Testing a Novel Supply Route for Plant-Derived Galanthamine
Many secondary plant compounds are synthesized in response to stressed growing conditions. We tested the feasibility of exploiting this feature in a novel strategy for the commercial production of the plant alkaloid galanthamine.
Chang, Xianmin +3 more
core +1 more source
Analysis of Amaryllidaceae Alkaloids from by GC-MS and their Cholinesterase Activity
The underivatized alkaloid mixture extracted from the bulbs of Chlidanthus fragrans Herb. was investigated by capillary GC/MS for the first time. Fifteen known Amaryllidaceae alkaloids of five structure types were identified.
Lucie Cahlíková +6 more
doaj +1 more source
The total synthesis of (±)-morphine and (-)-galanthamine [PDF]
textThe opiate alkaloid (-)-morphine and the Amaryllidaceae alkaloid (-)-galanthamine are well known for their analgesic and anticholinergic properties, respectively.
Sane, Neeraj Prakash
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Leucojum aestivum L. (summer snowflake) is a perennial bulbous plant of Amaryllidaceae family. It is exported for medicinal purposes to pharmaceutical industry and uncontrolled excessive collection of them causes a decline in natural population.
Arslan, Mustafa +4 more
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