Two New Steroidal Saponins from Ypsilandra thibetica

@article{Si2014TwoNS,
  title={Two New Steroidal Saponins from Ypsilandra thibetica},
  author={Yong-Ai Si and Huan Yan and W. Ni and Z. Liu and Ting-Xiang Lu and Chang-Xiang Cheng and Haiyang Liu},
  journal={Natural Products and Bioprospecting},
  year={2014},
  volume={4},
  pages={315 - 318}
}
  • Yong-Ai Si, Huan Yan, +4 authors Haiyang Liu
  • Published 2014
  • Chemistry, Medicine
  • Natural Products and Bioprospecting
  • Two new monosaccharide steroidal saponins, named ypsilandroside S (1) and ypsilandroside T (2), have been isolated from the whole plants of Ypsilandra thibetica. Their structures were elucidated as heloniogenin 3-O-β-D-apiofuranoside (1) and pregna 5,16-dien-3β,12α-diol-20-one-3-O-β-D-apiofuranoside (2) by spectroscopic techniques (1D and 2D NMR, MS). Compounds 1 and 2 were tested for their inhibitory effects on lipopolysaccharide-induced nitric oxide production in RAW 264.7 cells.Graphical… CONTINUE READING
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