TARAXASTANE GLYCOSIDES FROM ECLIPTA-ALBA

From the dried whole plants of Eclipta alba (Ecliptae Herba, Chinese n ame Mo Han Lian) purchased in China, four new taraxastane triterpene g lycosides, named eclalbasaponins W-X were isolated, along with eclalba saponins I-VI. The structures of eclalbasaponins VII-X were characteri zed as 3 beta,20 beta,16 beta- and 3 beta,20 beta,28-trihydroxytaraxas tane glycosides, and their sulphated saponins on the basis of spectral data. Copyright (C) 1996 Elsevier Science Ltd