Plant Diversity ›› 2003, Vol. 25 ›› Issue (03): 1-3.

• Articles •    

Cyclodipeptides of Panax notoginseng and Lactams of Panax ginseng

TAN Ning-Hua WANG Shuang-Ming YANG Ya-Bin HE Ming   

  1. State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany,Chinese Academy of Sciences
  • Online:2003-06-25 Published:2003-06-25

Abstract: From the roots of Panax notoginseng fourteen cyclodipeptides 1-14 were isolated including one new compound (1),seven new natural compounds (4-10) and six known compounds (2-3,11-14) together with one known other compound 15.The chemical structure of 1 was elucidated as cyclo(LeuThr) based on spectral methods.From the roots of Panax ginseng five known lactams (16-20) including pyroglutamic acid were isolated together with butyric diacid,daucosterol and sucrose.The primary bioactivity test showed that pyroglutamic acid and its nbutyl derivative have weak Ca2+ antagonistic activity.

Key words: Panax notoginseng