Results 101 to 110 of about 807 (153)

Huperserratinine from Huperzia serrata

Phytochemistry, 1994
Abstract A new Lycopodium alkaloid, huperserratinine, was isolated from Huperzia serrata and its structure and NMR data were assigned unambiguously by a combination of NMR experiments and computer modelling calculations.
Da-Yuan Zhu, Shang-Hao Jiang, Mei-Fen Huang, Long-Ze Lin, Geoffrey A. Cordell   +4 more
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New Lycopodium Alkaloids from Huperzia serrata

Planta Medica, 2002
Three 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, Bao-De, Wang, Shan-Hao, Jiang, Da-Yuan, Zhu   +3 more
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Lycopodium Alkaloids from Huperzia serrata

Helvetica Chimica Acta, 2007
AbstractThree new Lycopodium alkaloids, 2‐chlorohuperzine E (1), huperzines E′ (2), and F′ (3), along with two known compounds, huperzines E and F, were isolated from Huperzia serrata (Thunb.) Trev. Their structures were elucidated by spectroscopic methods.
Heng‐Bin Wang, Chang‐Heng Tan, Jun‐Jie Tan, Ming‐Yao Gao, Yi‐Ming Li, Shan‐Hao Jiang, Da‐Yuan Zhu   +6 more
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New Epoxyserratanes from Huperzia serrata

Planta Medica, 2003
Three 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, Shan-Hao, Jiang, Chang-Heng, Tan, Bao-De, Wang, Da-Yuan, Zhu   +4 more
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Lycopodiumalkaloids fromHuperzia serrata

Journal of Asian Natural Products Research, 2010
A 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, Shi-Jin, Qu, Kai, Xiao, Shan-Hao, Jiang, Jun-Jie, Tan, Chang-Heng, Tan, Da-Yuan, Zhu   +6 more
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Serratane-type Triterpenoids fromHuperzia Serrata

Natural Product Research, 2004
Sixteen 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, Yun-Sen, Li, Xiao-Tian, Tong, Hui-Qing, Liu, Shan-Hao, Jiang, Da-Yuan, Zhu   +5 more
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Huperserines A–E, Lycopodium alkaloids from Huperzia serrata

Fitoterapia, 2014
A 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, Fei, Liu, Xiu, Gao, Juan, He, Xiao, Cheng, Li-Yan, Peng, Xing-De, Wu, Qin-Shi, Zhao   +7 more
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Insights into Pipecolic Acid Biosynthesis in Huperzia serrata

Organic Letters, 2018
For 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, Zhen Fan, Yongxing Lei, Yu Ping, Amit Jaisi, Youli Xiao   +5 more
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A New Flavone Glycoside from Huperzia serrata

Chinese Journal of Natural Medicines, 2008
ABSTRACT AIM To investigate the chemical constituents in the plant of Huperzia serrata in order to find new compounds or effective components. METHODS Compounds were isolated over macroporous resin D101 and silica gel column. The structure was elucidated on the basis of spectral data. RESULTS A flavone glycoside was isolated and identified
Ya-Bing YANG, Xue-Qiong YANG, Yan-Qun XU, Zhi-Gang TAI, Zhong-Tao DING   +4 more
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[Two diterpenoids from herbs of Huperzia serrata].

Zhongguo Zhong yao za zhi = Zhongguo zhongyao zazhi = China journal of Chinese materia medica, 2009
To investigate the constituents from Huperzia serrata.Two diterpenoid compounds were isolated by column chromatography with silica gel and Sephadex LH-20. The structures were elucidated by spectral analysis and X-ray crystallographic analysis.Their structures were determined as (15R)-12, 16-epoxy-11, 14-dihydroxy-8, 11, 13-abietatrien-7-one (1) and ...
Yabin, Yang, Xueqiong, Yang, Yanqun, Xu, Zhigang, Tai, Liuhong, Dong, Zhongtao, Ding   +5 more
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