Results 141 to 150 of about 1,139 (170)
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Lycopodiumalkaloids fromHuperzia serrata
Journal of Asian Natural Products Research, 2010A new lycopodane-type Lycopodium alkaloid, 6α-hydroxy-5,15-oxide-lycopodane (1), and seven known alkaloids were isolated from the whole plants of Huperzia serrata. Their structures were elucidated by means of spectroscopic methods. 12-Deoxyhuperzine O (2) was reported as a naturally occurring alkaloid for the first time, and showed an antagonist effect
Yan-Fang, Yang +6 more
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Selagoline, A new Alkaloid fromHuperzia Selago
Natural Product Research, 2004A new natural product, named selagoline, and two known alkaloids, huperzine A and serratidine, were isolated from Huperzia selago (Lycopodiaceae) collected in Iceland. Their structures were determined using 600 and 800MHz one- and two-dimensional NMR methods supported by Fourier-transform mass spectrometry. Possible role of selagoline as a precursor of
Stærk, Dan +5 more
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Serratane-type Triterpenoids fromHuperzia Serrata
Natural Product Research, 2004Sixteen serratane-type triterpenoids including three new compounds, 14beta,15beta-epoxyserratan-3beta,21beta,29-triol (1), serrat-14-en-3beta,21beta,29-triol (2) and serrat-14-en-3alpha,21beta,24,29-tetraol (3), were isolated from the whole plant of Huperzia serrata (Thunb) Trev.
Hui, Zhou +5 more
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Sauroine—a novel Lycopodium alkaloid from Huperzia saururus
Tetrahedron Letters, 2004A novel Lycopodium alkaloid, sauroine (7,8-dihydroxylycopodine, 1) was isolated from the aerial parts of the medicinal species Huperzia saururus. The structure and relative stereochemistry of 1 were elucidated on the basis of its spectral data.
Maria Gabriela Ortega +2 more
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The use of Huperzia species for the treatment of Alzheimer’s disease
Journal of Basic and Clinical Physiology and Pharmacology, 2019Abstract Alzheimer’s disease (AD), which relates to nervous degeneration, is the most popular form of memory loss. The pathogenesis of AD is not fully understood, and there are no therapies for this disorder.
Dang, Kim Thu +4 more
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Huperserines A–E, Lycopodium alkaloids from Huperzia serrata
Fitoterapia, 2014A phytochemical study on Huperzia serrata led to the isolation of four new 5-deoxyfawcettimine-related Lycopodium alkaloids, huperserines A-D (1-4), and one new lycodine-type alkaloid, huperserine E (5). Their structures were elucidated based on spectroscopic data, including 1D and 2D NMR techniques.
Wei-Wei, Jiang +7 more
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Insights into Pipecolic Acid Biosynthesis in Huperzia serrata
Organic Letters, 2018For the biosynthesis of Pip in Huperzia serrata, the mechanistic studies were evaluated. Through a series of biochemical analyses, Pip is biosynthesized through a two-step cascade reaction. Three intermediates possibly exist simultaneously as an equilibrium matter in the first-step reaction catalyzed by HsAld1, while HsSard4 performs as a ketimine ...
Baofu Xu +5 more
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Lycopodium Alkaloids from Huperzia goebelii
Chemistry & BiodiversityAbstract One new fawcettimine‐type Lycopodium alkaloid , hupertimine F ( 1 ), together with five known ( 2 – 6 )
Bei‐Bei Gao +4 more
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