Results 171 to 180 of about 2,344 (201)
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New Epoxyserratanes from Huperzia serrata
Planta Medica, 2003Three new serratane-type epoxytriterpenoids were isolated from the whole plant of Huperzia serrata. The structures of these new compounds were characterized as 14 beta,15 beta-epoxy-3 beta-hydroxyserratan-21 beta-ol (1), 14 beta,15 beta-epoxy-3 beta-hydroxyserratan-21alpha-ol (2), and 14 beta,15 beta-epoxy-3 beta-hydroxyserratan-21alpha-ol-3 beta-O ...
Hui, Zhou +4 more
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New Lycopodium Alkaloids from Huperzia serrata
Planta Medica, 2002Three new lycopodium alkaloids, 11alpha-hydroxyphlegmariurine B (2), 7alpha-hydroxyphlegmariurine B (3) and 7alpha,11alpha-dihydroxyphlegmariurine B (4) along with a known compound, phlegmariurine B (1), were isolated from the herb Huperzia serrata. The structures of the above compounds were elucidated based on spectroscopic studies.
Chang-Heng, Tan +3 more
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Anticholinesterase activity in an alkaloid extract of Huperzia saururus
Phytomedicine, 2004Huperzia saururus (Lam.) Trevis. (Lycopodiaceae) is used widely in Argentinian traditional medicine as an aphrodisiac and for memory improvement. An aqueous extract from the aerial parts was obtained by decoction, revealing the presence of alkaloids, among other constituents. By partition with organic solvent in alkaline media, alkaloids were extracted
M G, Ortega, A M, Agnese, J L, Cabrera
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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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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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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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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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Triterpenoid constituents of Huperzia miyoshiana
Chinese Journal of Chemistry, 2003Chang-Heng Tan +2 more
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