STEROIDAL SAPONINS FROM THE LEAVES OF CORDYLINE STRICTA

Three new spirostanol saponins and two new furostanol saponins were is olated from the fresh leaves of Cordyline stricta. Their structures we re elucidated on the basis of spectroscopic analysis, including variou s 2D-NMR techniques, hydrolysis, and by comparison of spectral data of known compounds. Two of the isolated saponins contained a new branche d triglycoside moiety assigned as O-alpha-L-rhamnopyranosyl-(1 --> 2)- O-[beta-D-xylopyranosyl-(1 --> 3)]-beta-D-xylopyranose with the format ion of an O-glycosidic linkage to C-l of the aglycone. (C) 1997 Elsevi er Science Ltd.