Plant Diversity ›› 2000, Vol. 22 ›› Issue (03): 1-3.

• Articles •    

Cyclic Peptides from the Roots of Psammosilene tunicoides *

DING Zhong - Tao, WANG You -Chu, ZHOU Jun ,TAN Ning -Hua, WU Hou - Ming   

  1. Laboratory of Phytochemisty, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650204, China
  • Online:2000-06-25 Published:2000-06-25

Abstract: From PsammosUene tunicoides W. C. Wu et C. Y. Wu, two new natural cyclic dipeptides and two new cyclic octapeptides (named psammosilenins A and B) were isolated. Their structures were deter-mined as cycio (-Ala-Ala-), cycio (-Val-Ala-), cycio ( - Pro1, - Phe1 - Pro2 - Phe2 - Phe3 -Ala- Pro3 -Leu-) and cycle ( - Prol - Gly - Phe1- Val - Pro2 - Phe2 - Thr - Ile - ) by spectroscopic methods respectively.

Key words: PsanvnosUene tunicoides