Novel triterpenoid saponins from Bupleurum subovatum (Link) (Umbelliferae)

摘要

Five triterpenoidal saponins 1-5 have been isolated from the roots of the plant. Saponins 4 and 5 are novel compounds identified as 3#beta#, 16#beta#, 23, 28-tetrahydroxy-olean-11, 13(18)-diene-3-O-#beta#-D-glucopyranosyl-(1->2)-#beta#-D-glucopyranosyl-(1->6)-[#beta#-D-glucopyranosyl-(1->2)-#beta#-D-glucopyranoside and 3#beta#, 23, 28-trihydroxyolean-11, 13(18)-diene-3-O-#beta#-D-glucopyranosyl-(1->2)-#beta#-D-gluco-pyranosyl-(1->6)-[#beta#-D-glucopyranosyl-(1->2)]-#beta#-D-gluco-pyranoside.