ANTISWEET NATURAL-PRODUCTS .12. STRUCTURES OF SITAKISOSIDES-XI-XX FROM STEPHANOTIS-LUTCHUENSIS KOIDZ VAR JAPONICA

Authors
YOSHIKAWA K MIZUTANI A KAN Y ARIHARA S
Citation
K. Yoshikawa et al., ANTISWEET NATURAL-PRODUCTS .12. STRUCTURES OF SITAKISOSIDES-XI-XX FROM STEPHANOTIS-LUTCHUENSIS KOIDZ VAR JAPONICA, Chemical and Pharmaceutical Bulletin, 45(1), 1997, pp. 62-67
Citations number
8
Categorie Soggetti
Pharmacology & Pharmacy",Chemistry
Journal title
Chemical and Pharmaceutical Bulletin → ACNP
ISSN journal
00092363
Volume
45
Issue
1
Year of publication
1997
Pages
62 - 67
Database
ISI
SICI code
0009-2363(1997)45:1<62:AN.SOS>2.0.ZU;2-3
Abstract
From the fresh stem of Stephanotis lutchuensis var. japonica, ten new oleanane-type triterpenoid glycosides, named sitakisosides XI-XX (1-10 ), were isolated. Their structures were determined on the basis of spe ctroscopic data and chemical evidence. The results show that all have a 3-O-beta-D-xylopyranosyl beta-D-glucopyranosyl(1-->6)-beta-D-glucopy ranosyl moiety and the aglycones of sitakisosides XI-XV, XVI and XVII, XVIII and XIX, and XX are sitakisogenin, chichipegenin, marsglobiferi n and longispinogenin, respectively. Sitakisosides XI-XIII, XVI and XV III, having an acyl group, showed antisweet activity.