Five furostanol saponins from fruits of Tribulus terrestris and their cytotoxic activities

@article{Wang2009FiveFS,
  title={Five furostanol saponins from fruits of Tribulus terrestris and their cytotoxic activities},
  author={Jue Wang and Xuyu Zu and Yuyang Jiang},
  journal={Natural Product Research},
  year={2009},
  volume={23},
  pages={1436 - 1444}
}
Two new furostanol saponins, terrestroside A, 3-O-{β-D-xylopyranosyl-(1 → 3)-[β-D-xylopyranosyl(1 → 2)]-β-D-glucopyranosyl(1 → 4)-[α-L-rhamnopyranosyl(1 → 2)]-β-D-galactopyranosy}-26-O-β-D-glucopyranosyl-L-5a-furost-20(22)-en-(25R)-3β,26-diol (1) and terrestroside B, 3-O-{β-D-xylopyran-osyl(1 → 3)-[β-D-xylopyranosyl(1 → 2)]-β-D-glucopyranosyl(1 → 4)-[α-L-rhamnopyranosyl-(1 → 2)]-β-D-galactopyranosy}-26-O-β-D-glucopyranosyl-5a-furostan-12-one-(25R)-22-methoxy-3β,26-diol (2), together with three… 
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References

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Two new steroid saponins, named terrestrinins A (1) and B (2), along with six known compounds were isolated from the Chinese medicine herb Tribulus terrestris, and their chemical structures were
Three new saponins from Tribulus terrestris.
Three new steroidal saponins 1-3, together with five known steroidal saponins, L-mannitol and an inorganic salt were isolated from Tribulus terrestris L. (Zygophyllaceae). The structures of the new
A New Steroidal Saponin from Tribulus Terrestris Linn
A new steroidal saponin containing six monosaccharides was obtained from the total plant of Tribulus terrestris and elucidated based on chemical spectroscopic analysis, especially on 2D-NMR
A New Steroidal Saponin from Chlorophytum malayense
TLDR
A new steroidal saponin was isolated from the fresh rhizomes of Chlorophytum malayense, together with three known saponins, chloromaloside A-C, and the structure was elucidated as 26-O-beta-D-glucopyranosyl-22-hydroxy-25(S)-5alpha-furostan-12-oxo-3beta.
Biologically active steroidal glycosides from Tribulus terrestris.
TLDR
Certain structural features are concluded to be required for these bioactivities of spirostanol-based steroidal saponins 1-3, which exhibited remarkable activity against fungal organisms and cancer cell lines.
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