Forschung & Innovation
Publikationen
Bufadienolides from Urginea maritima from Egypt
PMU Autor*in
R. Terkola
Alle Autor*innen
B. Kopp, L. Krenn, M. Draxler, A. Hoyer, R. Terkola, P. Vallaster, W. Robien
Fachzeitschrift
PHYTOCHEMISTRY
Kurzfassung
Forty-one bufadienolides were isolated from the bulbs of Urginea maritima agg. from Egypt; 26 of them are new natural compounds. Structure elucidation was performed by comparison with authentic substances or by means of 1H, 13C NMR and FAB mass spectroscopy. Sixteen of the glycosides derive from nine structurally new aglycones: 16 beta-hydroxy-scillarenin, 16 beta-O-acetyl- scillarenin, 12 beta-hydroxy-5 alpha-4,5-dihydro-scillirosidin, 16 beta- hydroxy-5 alpha-4,5-dihydro-scillirosidin, 16 beta-O-acetyl-5 alpha-4,5- dihydro-scillirosidin, 12 beta-hydroxy-scillirubrosidin, 16 beta-O-acetyl- scillirubrosidin, 9-hydroxy-scilliphaeosidine and 12 beta-hydroxy-desacetyl- scillirosidine.
Keywords
GLYCOSIDES, Egypt, Bufanolides, Cholenes/chemistry, Magnetic Resonance Spectroscopy, Molecular Conformation, Plant Extracts, Plant Roots, Plants, Medicinal, Spectrometry, Mass, Fast Atom Bombardment