Planta Med 2000; 66(6): 545-550
DOI: 10.1055/s-2000-8609
Original Paper
Georg Thieme Verlag Stuttgart · New York

Three New Saponins from Tribulus terrestris

Yi-Xin Xu1,*, Hai-Sheng Chen1 , Hua-Qing Liang1 , Zheng-Bing Gu1 , Wen-Yong Liu1 , Wing-Nang Leung2 , Tie-Jun Li3
  • 1 Department of Phytochemistry, College of Pharmacy, Second Military Medical University, Shanghai, People's Republic of China
  • 2 Department of Biology, HongKong Baptist University, Kowloon, HongKong
  • 3 Department of Pharmacology, College of Pharmacy, Second Military Medical University, Shanghai, People's Republic of China
Further Information

Publication History

Publication Date:
31 December 2000 (online)

Abstract

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 steroidal saponins were elucidated as hecogenin 3-O-β-xylopyranosyl(1→3)-β-glucopyranosyl(1→4)-β-galactopyranoside (1), hecogenin 3-O-β-glucopyranosyl(1→2)-β-glucopyranosyl(1→4)-β-galactopyranoside (2) and 3-O-{β-xylopyranosyl(1→2)-[β-xylopyranosyl(1→3)]-β-glucopyranosyl(1→4)-[α-rhamnopyranosyl(1→2)]-β-galactopyranosyl}-26-O-β-glucopyranosyl-22-methoxy-(3β,5α,25R)-furostan-3,26-diol (3). Structure elucidation was accomplished by 1D and 2D NMR spectra (13C-1H COSY, HMQC, HMBC, 1H-1H COSY, TOCSY, and NOESY), mass spectrometry (FABMS, ESIMS) and chemical methods.

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Dr. Yi-Xin Xu

Department of Phytochemistry College of Pharmacy Second Military Medical University

101 GuoHe Road

Shanghai, 200433

People's Republic of China

Phone: +86 21 65495819