Chalcones and other constituents of Dorstenia prorepens and Dorstenia zenkeri

Please use this identifier to cite or link to this item: http://hdl.handle.net/10311/254

Title:	Chalcones and other constituents of Dorstenia prorepens and Dorstenia zenkeri
Authors:	Abegaz, B.M. Ngadjui, B.T. Dongo, E. Ngameni, B. Nindi, M.N. Bezabih, M.
Keywords:	Dorstenia prorepens Dorstenia zenkeri Moraceae Twigs Leaves Isolation Geranylated chalcone Prorepensin Bichalcone Diels–Alder adduct
Issue Date:	2002
Publisher:	Elsevier Science Ltd. www.elsevier.com/locate/phytochem
Citation:	Abegaz, B.M. et al (2002), Chalcones and other constituents of Dorstenia prorepens and Dorstenia zenkeri, Phytochemistry, vol. 59, pp. 877–883
Abstract:	The twigs of Dorstenia prorepens furnished the digeranylated chalcone, 5,30-(3,7-dimethyl-2,6-octadienyl)-3,4, 20,40-tetrahydroxychalcone while Dorstenia zenkeri yielded the 30,40-(3-hydroxy-2,2-dimethyldihydropyrano)-4,20-dihydroxychalcone and a bichalcone. 4-Hydroxylonchocarpin was found in both plants. D. prorepens also yielded the known compounds: psoralen, bergapten, b-sitosterol and its D-glucopyranosyl derivative. D. zenkeri yielded p-hydroxybenzaldehyde, dorsmanin A, 4,20,40-trihydroxychalcone and 4,20,40-trihydroxy-30-prenylchalcone. Structures of the new compounds were established by UV, IR, MS and 2-D NMR analysis.
URI:	http://hdl.handle.net/10311/254
ISSN:	0031-9422
Appears in Collections:	Research articles (Dept of Chemistry)

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