Oleanane-type triterpenoid saponins from Xanthoceras sorbifolia Bunge.
Kľúčové slová
Abstrakt
Phytochemical analysis of the extract from the seed oil leavings of Xanthoceras sorbifolia Bunge led to the isolation of five new oleanane-type triterpeniod saponins, sorbifoliasides G-K (1-5). Their structures were elucidated on the basis of spectroscopic analysis and chemical derivatization. To our knowledge, compound 5 is the first example of a naturally occurring 3,28-O-bisdesmosic triterpenoid saponin with olefinic linkages at C12 and C15. The cytotoxicity of all compounds against ten selected human cancer cell lines was assayed.