3-O-Sulfo-triterpenoid Saponins from Gypsophila trichotoma Wend

Three new sulfated oleanane-type saponins were isolated from the roots of Gypsophila trichotoma Wend. (Caryophyllaceae). Their structures were established as 3-O-sulfoechionocystic acid 28-beta-glucopyranosyl ester (1), 3-O-sulfooleanolic acid 28-beta-glucopyranosyl ester (2) and 3-O-sulfoquillaic acid 28-beta-glucopyranosyl ester (3) on the basis of chemical and spectral evidences.