Phytoecdysteroids of plants of the genusSilene XX. Integristerone A 25-acetate fromSilene brahuica
摘要:
A new ecdysteroid - integristerone A 25-acetate - has been isolated from the roots of Silene brahuica Boiss. Its structure has been determined on the basis of chemical transformations and spectral characteristics.
Sileneoside H, a New Phytoecdysteroid from Silene brahuica
摘要:
Sileneoside H (1), a new phytoecdysteroid, has been isolated from the roots of Silene brahuica and identified as 22-O-alpha-D-galactosylintegristerone A 25-acetate by MS and NMR analysis.