STRUCTURE DETERMINATION OF ISO-PAEONOI FROM CYNANCHUM PANICULATUM

Seven chemical constituents were isolated from the Cynanchum paniculatum(Bunge) K. Schum. One of them was found to be iso-paeonol (3-hydroxy-4-mthoxy-acetophenone.The structure of iso-paeonol was elucidated on the basis of spectroscopic anlysis and synthe