Triterpenoid Saponins from Rubus ellipticus var. obcordatus
摘要:
Ten new triterpenoid saponins (1-10), named rubusides A-J, and 21 known saponins (11-31) were isolated from the roots of Rubus ellipticus var. obcordatus. The structures of 1-10 were established on the basis of spectroscopic analyses, mainly NMR and MS, and chemical degradations. The compounds demonstrated inhibitory activities against (X-glucosidase with IC(50) values in the range 0.65-3.09 mM.