Antitumor Agents, 104. Isolation of Yadanziosides M and P from Brucea antidysenterica and Identification of Bruceantinoside B as a Mixture of Yadanzioside P and Bruceantinoside C

Yadanziosides M [3] and P [1] were isolated from Brucea antidysenterica. Their structures were elucidated by spectral data. Bruceantinoside B reported previously was reinvestigated and revealed to be a mixture of yadanzioside P and bruceantinoside C [2]. The structure of yadanzioside P was found to be identical to that of bruceantinoside B.