Abstract
Two new terpenoid glucosides, namely 2-O-β-d-glucopyranoside-vicodiol (1) and 10-O-β-d-glucopyranoside-oplopanone (2), along with seven known compounds, were isolated from the aerial part of Aster flaccidus (composite), a traditional Chinese herb medicine. The structures of 1 and 2 were established by spectroscopic methods, especially 2D NMR experiments.
Acknowledgements
The Financial support of the National Scientific Foundation (30025044) of People's Republic of China and the foundation from the Ministry of Science and Technology (2002CB512807) of People's Republic of China are gratefully acknowledged. We thank Prof Xiao-An Wang for the collection and identification of the plant material.