Studies on the Saponins of the Root of Platycodon grandiflorum A. DE CANDOLLE. I. Isolation and the Structure of Platycodin-D

Abstract

The chemical structure of platycodin-D, C₅₇H₉₂O₂₈, [α]²¹_D-32.3°(MeOH), which was isolated from platycodi radix (root of Platycodon grandiflorum A. DC.) was elucidated as I on the basis of physical data of platycodin-D, its derivatives and degradation products. It should be noted that platycodin-D is the first example of saponin containing apiose in the sugar moiety.