From the whole plant extract of Daphne oleoides, a new dicoumarin glycoside gulsamanin, has been isolated. Its structure was established as 6,7-dihydroxy-3-methoxy-8-[2-oxo-2H-1-benzopyran-7-(O-β-D-glucopyranosyl)-8-yl]-2H-1-benzopyran-2-one, on the basis of extensive NMR spectral studies, as well as by chemical methods.
Thymelaeaceae, Daphne oleoides, gulsamanin
Publication DOI: 10.1016/S0031-9422(98)00726-2Journal NLM ID: 0151434Publisher: Elsevier
Institutions: International Centre for Chemical Sciences, H.E.J. Research Instituteof Chemistry, University of Karachi, Karachi-75270, Pakistan
Methods: 13C NMR, 1H NMR, IR, FAB-MS, TLC, GC, UV, PC, HMBC, HMQC, DEPT, COSY, HR-FAB-MS, HCl hydrolysis, VLC, trimethylsilylation
Found