Triterpenoid Saponins of Aquifoliaceous Plants. XII. Ilexosides XLVI—LI from the Leaves of Ilex rotunda thunb.2)

Abstract

Six new saponins, ilexosides XLVI—LI, were isolated from fresh leaves of Ilex rotunda, and their structures were elucidated on the basis of chemical and physicochemical evidence. Ilexosides XLVI, XLVII, L and LI are 3,28-bisglycosides of ilexosapogenin A, spathodic acid, bredemolic acid, and siaresinolic acid, respectively. Ilexosides XLVIII and XLIX are 3, 28-bisglycosides of hederagenin. © 1993, The Pharmaceutical Society of Japan. All rights reserved.