Abstract
A new dammarane-type triterpenoid saponin, (20R)-ginsenoside ST2 (1), along with five known saponins was isolated from the hongshen extract of Shenmai injection. The structure of 1 was elucidated to be (20R)-dammar-23(E)-ene-3β,6α,12β,20,25-pentol 6-O-β-d-glucopyranoside by means of spectroscopic methods.
Acknowledgements
This study was supported by the grants, ‘Key New Drug Creation and Manufacturing Program’ (2009ZX09301-001) of the National Science & Technology Major Project and National Science & Technology support Project (No. 2006BAI06A19-04) of the Ministry of Science & Technology of China.