supported by grants from the National Natural Science Foundation of China(No. 81001694)
Two new isospirostanol sapogenins named (25R)-5/%spirostane-(1αα 3a)-diol (1) and (25R)-5/%spirostane-(1α, 2α, 3α, 4α)- tetrol (2) were isolated from the whole herb ofReineckia carnea (Andr.) Kunth...
financially supported by E&T Modern Center for Natural Products of Liaoning Province of China (No.2008402021)
Two new sapogenins,named(20S,24R)-3β,20,21β,25-tetrahydroxy-21,24-cyclodammarane(1)and 3β-hydroxyetio-17β-dammaranic acid(2),were isolated from the alkaline hydrolysate of Gynostemma pentaphyllum saponins.Th...
Two new spirostanol sapogenins named agavegenin A and B were isolated from the fermented leaves of Agave americana L. Their structures were elucidated as (23S, 25R)-5a- spirostan-3b, 6a, 11a, 23-tetraol (1) and (23S,...
National Natural Science Foundation of China,No,39770910
AIM: This investigation was to reveal the characteristics and mechanism of enzyme secretion and increase in [Ca2+]i stimulated by saikosaponin(I) (SA(I)) in rat pancreatic acini. METHODS:Pancreatic acini were prepared...