From bulbs of Drimia robusta 7 bufadienolides were isolated, 3 of them new natural compounds. Structure elucidation was performed by comparison with authentic substances or by means of 1H-, 13C-NMR-spectroscopy and FAB-MS. The substances were identified as scilliroside (1), 12β-hydroxyscillirosidin (2), 12β-hydroxyscilliroside (3), hellebrigenin-3-0-β-glucoside (4), 16β-hydroxyhellebrigenin (5), 16β-hydroxyhellebrigenin-3-O-β-glucoside (6) and 5β,16β-dihydroxybufalin-3-O-β-glucoside (7).
cardiac glycosides, Hyacinthaceae, Drimia robusta, bufadienolides
Publication DOI: 10.3797/scipharm.aut-00-38Journal NLM ID: 0026251Publisher: Basel, Switzerland: MDPI
Correspondence: liselotte.krenn@univie.ac.at
Institutions: Institute of Pharmacognosy, University of Vienna, Pharmacy-Centre, Vienna, Austria
Found