A novel cycloartane-type glycoside was isolated from the aerial parts of As
tragalus trojanus along with the known glycosides astragaloside II, astraga
loside IV, astragaloside VII, brachyoside B, brachyoside C and the pterocar
pan derivative maackiain. The structure of 1 was determined by spectral met
hods (1-D and 2-D NMR, and FABMS) and established as 3-O-beta-[alpha-L-arab
inopyranosyl(1 --> 2)beta-D-xylopyranosyl]-6-O-beta-D-glucopyranosyl-20(R),
24(S)-epoxy-3 beta,6 alpha,16 beta,25-tetrahydroxycycloartane. (C) 1999 Els
evier Science Ltd. All rights reserved.