Further SAponins from Phytolacca dodecandra L'HERIT

Article abstract of DOI:10.1002/hlca.19860690827

Three new bidesmosidic saponins 1-3 have been isolated from the berries of Phytolacca dodecandra L'HERIT (Phytolaccaceae).The structures have been established by spectroscopic ((1)H-NMR, (13)C-NMR, FAB-MS, DCI-MS, and GC/MS) and chemical methods (acid, basic, and enzymatic hydrolysis).Saponins 1 and 3 are tetra- and pentaglycosides of oleanolic acid, whereas 2 is a tetraglycoside of bayogenin.The corresponding prosapogenins 1a-3a, obtained by cleavage of a glucose unit esterified at C(28), exhibited strong molluscicidal activity against schistosomiasis-transmitting snails.