Published December 31, 2003
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Constituents of the Annonaceae species Miliusa velutina and Desmos longiflorus
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Department of Chemistry, University of Glasgow, Glasgow Gl2 8QQ, Scotland, U.K.
Manuscript received 13 November 2003
Extraction of the stem bark of Miliusa velutina afforded miliusolide (1), an enediyne-y-lactone derivative, and its dihydroderivative (4), together with two other fatty acid-derived lactones. The stem bark of Desmos longiflorus yielded a triterpenoid, 15α-hydroxy-24-methylene-7,9(11)-lanostadien-3-one (7), three modified flavonoid derivatives, desmoflorin (8), 4-O- acetyldesmoflorin (9) and 4-O-epidesmoflorin (10), and an alkaloid, 3-hydroxy-2-methoxy-9,19-methylenedioxytetrahydroprotoberberine (11) (tetrahydrogroenlandicine).
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