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Lyconadins G and H, Two Rare Lyconadin-Type Lycopodium Alkaloids from Lycopodium complanatum
- Cheng, Jin-Tang, Zhang, Zhi-Jun, Li, Xiao-Nian, Peng, Li-Yan, Luo, Huai-Rong, Wu, Xing-De, Zhao, Qin-Shi
- Nat. Prod. Bioprospect. 2016 v.6 no.6 pp. 279-284
- Lycopodium, Lycopodium alkaloids, X-ray diffraction, biosynthesis, spectral analysis
- 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.