Steroidal alkaloids from the bulbs of Fritillaria puqiensis.

@article{Jiang2005SteroidalAF,
  title={Steroidal alkaloids from the bulbs of Fritillaria puqiensis.},
  author={Yan Jiang and Huijun Li and Ping Li and Zhaohui Cai and Wencai Ye},
  journal={Journal of natural products},
  year={2005},
  volume={68 2},
  pages={
          264-7
        }
}
Four new steroidal alkaloids, puqienine A (1), puqienine B (2), N-demethylpuqietinone (3), and puqietinonoside (4), along with a known steroidal alkaloid, puqietinone, were isolated from the bulbs of Fritillaria puqiensis. The structures of these compounds were elucidated on the basis of spectroscopic analysis. The compounds exhibited significant antitussive activity on ammonia liquor-induced cough in mice. Furthermore, the compounds were evaluated for activities against A549 human lung… CONTINUE READING

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