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5 resultat
Antiplasmodial alkaloids from bulbs of Amaryllis belladonna Steud.
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A bioassay-guided fractionation and chemical investigation of Amaryllis belladonna Steud. bulbs resulted in the isolation and identification of the new crinane alkaloid 1,4-dihydroxy-3-methoxy powellan (1), along with the 3 known crinane alkaloids 2-4 and the two lycorane alkaloids 5-6. The
Alkaloid Constituents of the Amaryllidaceae Plant Amaryllis belladonna L.
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The plant family Amaryllidaceae is well-known for its unique alkaloid constituents, which exhibit a wide range of biological activities. Its representative, Amaryllis belladonna, has a geographical distribution covering mainly southern Africa, where it has significant usage in the traditional
(-)-Amarbellisine, a lycorine-type alkaloid from Amaryllis belladonna L. growing in Egypt.
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A new lycorine-type alkaloid, named (-)-amarbellisine, was isolated from the bulbs of Egyptian Amaryllis belladonna L. together with the well known alkaloids (-)-lycorine, (-)-pancracine, (+)-vittatine, (+)-11-hydroxyvittatine, and (+)-hippeastrine. The new alkaloid, containing the
Antineoplastic agents, 99. Amaryllis belladonna.
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Amaryllis belladonna bulbs were examined for constituents inhibitory against the murine P-388 lymphocytic leukemia (PS system). Two in vitro active alkaloids, acetylcaranine (2; 9PS ED50 0.23 microgram/ml) and ambelline (3; 9PS ED50 1.6 micrograms/ml), were isolated accompanied by undulatine.
Isolation, in vitro evaluation and molecular docking of acetylcholinesterase inhibitors from South African Amaryllidaceae
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Inhibition of acetylcholinesterase (AChE) is considered a promising strategy for the treatment of Alzheimer's disease (AD) and dementia. Members of the Amaryllidaceae family are well known for their pharmacologically active alkaloids, including galanthamine, which is used to treat AD. The aim of
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