STUDIES ON THE ACTIVE CONSTITUENTES OF ANEMARRHENA ASPHODELOIDES BUNGE

From the ethanol extract of the Anemarrhena asphodeloides Buge (Liliaceae), a new steroidal suponin anemarsaponin B and two known saponinsanemarsaponin A1 and A2 were isolated. On the basis of chemical evidences and spectralanalysis (UV, IR, EI-MS, FAB-MS,¹H-NMR and ¹³C - NMR), the structure ofanemarsaponin B was elucidated as 26-O-β-D - glucopyranosylfurost -20(22)-ene-3β,26-diol-3-O-β-D- glucopyranosyl (1→2 ) -β-D- galactotopyranoside. Preiminarypharmacological tests showed that anemarsaponin B could inhibit PAF-induced rabbitplatelet aggregation in vitro.