Cheng Jin-Tang, Zhang Zhi-Jun, Li Xiao-Nian, Peng Li-Yan, Luo Huai-Rong, Wu Xing-De, Zhao Qin-Shi
State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, 650201, People's Republic of China.
Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, 100700, People's Republic of China.
Nat Prod Bioprospect. 2016 Dec;6(6):279-284. doi: 10.1007/s13659-016-0111-9. Epub 2016 Oct 25.
Two rare lyconadin-type Lycopodium alkaloids, lyconadins G (1) and H (2), together with four known ones (3-6), were isolated from Lycopodium complanatum. The structures were determined on the basis of their spectroscopic analyses, and the absolute configuration of 1 was established by an X-ray crystallographic analysis. It is the first time to establish the absolute configuration of lyconadin-type Lycopodium alkaloid by an X-ray diffraction experiment. In addition, these findings may provide more information for the biosynthesis of lyconadins.
从扁枝石松中分离出两种罕见的石松灵碱型石松生物碱，石松灵碱G（1）和H（2），以及四种已知的生物碱（3 - 6）。通过光谱分析确定了它们的结构，并通过X射线晶体学分析确定了1的绝对构型。这是首次通过X射线衍射实验确定石松灵碱型石松生物碱的绝对构型。此外，这些发现可能为石松灵碱的生物合成提供更多信息。
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