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Ursene type nortriterpene from Debregeasia salicifolia
1H.E.J. Research Institute of Chemistry, University of Karachi, -75270, Karachi, Pakista.
Fitoterapia
|June 8, 2001
Abstract:
A new triterpene, 3beta-19alpha-dihydroxy-30-norurs-12-ene (1), has been isolated from the methanolic extract of Debregeasia salicifolia stems. Its structure has been elucidated with the help of one- and two-dimensional NMR and NOE studies. Lupeol, beta-sitosterol, stigmasterol and oleanolic acid are also reported for the first time from this species.