38308-47-3Relevant articles and documents
Saponins from Roots of Platycodon grandiflorum. Part 2. Isolation and Structure of New Triterpene Glycosides
Ishii, Hiroshi,Tori, Kazuo,Tozyo, Takehiko,Yoshimura, Yohko
, p. 661 - 668 (2007/10/02)
Seventeen new saponins (2)-(18) have been isolated from the roots of Platycodon grandiflorum A.DC. and their structures determined by comparison of their 13C n.m.r. signals with those of known prosapogenins (19)-(26) and of the sugar chain at C-28 in platycodin-D (1).Eight of these saponins were found to have an O-acetyl group which migrated both readily and reversibly between the 2-O- and 3-O-positions of the rhamnose moiety in their sugar chain.