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Planta Med 1999; 65(7): 661-663
DOI: 10.1055/s-2006-960842
Letter

© Georg Thieme Verlag Stuttgart · New York

Steroidal Saponins from Anemarrhena asphodeloides and their Effects on Superoxide Generation

Zhi-Yun Meng1 , Jian-Ying Zhang2 , Sui-Xu Xu1 , Kazunori Sugahara2
  • 1Department of Phytochemistry, Shenyang Pharmaceutical University, Shenyang, China
  • 2Department of Chemistry, Kochi Medical School, Nankoku, Kochi, Japan
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Publication History

1999

1999

Publication Date:
04 January 2007 (online)

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Abstract

A new steroidal saponin, timosaponin F, along with six known compounds was isolated from the rhizomes of Anemarrhena asphodeloides Bge. On the basis of chemical and spectroscopic evidence, the structure of timosaponin F was elucidated as (5β,25S):-spirostan-3β,15α,23α-triol-3-O-β-glucopyranosyl-(1→2)-β-galactopyranoside. The six known compounds were anemarrhenasaponin I, anemarrhenasaponin Ia, timosaponin BI, timosaponin BII, timosaponin B, timosaponin AIII; their effects on superoxide generation are also reported.