›› 2009, Vol. 4 ›› Issue (3): 85-91.

• 论文 •    下一篇

Flavonol glycosides and triterpenes from the leaves of Uncaria rhynchophylla (Miq.) Jacks.

  

  • 收稿日期:2008-11-19 修回日期:2009-04-01 出版日期:2009-06-20 发布日期:2009-06-20

Flavonol glycosides and triterpenes from the leaves of Uncaria rhynchophylla (Miq.) Jacks.

Bin Ma 1; Suiku Liu 1; Yuanyuan Xie 1; Yoshihiro Kano 2; Dan Yuan 1*   

  1. 1. School of Traditional Chinese Materia Medica, Shenyang Pharmaceutical University, Shenyang 110016, China; 2. Institute of Natural Medicine, University of Toyama, 2630 Sugitani, Toyama 930-0194, Japan
  • Received:2008-11-19 Revised:2009-04-01 Online:2009-06-20 Published:2009-06-20
  • Contact: Dan Yuan

Abstract: Ten compounds were isolated from the leaves of Uncaria rhynchophylla (Miq.) Jacks. by the chromatographic techniques. On the basis of physico-chemical properties and spectral methods, they were identified as five flavonol glycosides, quercetin-3-O-α-L-rhamnopyranosyl-(1→6)-β-D-galactopyranoside (1), rutin (2), hyperoside (3), kaempferol-3-O-α-L-rhamnopyranosyl-(1→6)-β-D-galactopyranoside (4) and kaempferol-3-O-β-D-galactopyranoside (5), three triterpenoids, 6β–hydroxyursolic acid (6), 3β, 6β, 19α-trihydroxyurs-12-en-28-oic acid (7), and 3β, 6β, 23–trihydroxyurs-12-en-28-oic acid (8), and two phytosterols, β–sitosterol (9) and daucosterol (10) Compounds 1, 4 and 6 were obtained from the Uncaria sp. for the first time with compounds 2, 8 and 10 from this plant for the first time.

Key words: Uncaria rhynchophylla, flavonol glycosides, triterpenes, chemical constituent