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dc.contributor.author Ngadjui, B.
dc.contributor.author Watchueng, J.
dc.contributor.author Keumedjio, F.
dc.contributor.author Ngameni, B.
dc.contributor.author Simo, I.
dc.contributor.author Abegaz, B.
dc.date.accessioned 2008-10-27T10:14:12Z
dc.date.available 2008-10-27T10:14:12Z
dc.date.issued 2004
dc.identifier.citation Ngadjui, B.T. et al (2004) Prenylated chalcones, flavone and other constituents of the twigs of Dorstenia angusticornis and Dorstenia barteri var. subtriangularis, Phytochemistry, 65 (4), pp. 427-432 en
dc.identifier.issn 0031-9422
dc.identifier.uri http://hdl.handle.net/10311/253
dc.description.abstract The twigs of Dorstenia angusticornis and Dorstenia barteri var. subtriangularis yielded 16 compounds. Two novel diprenylated chalcones: 3,50-di-(2-hydroxy-3-methylbut-3-enyl)-4,20,40-trihydroxychalcone, 3, 4-(2,2-dimethylpyrano)-30-(2-hydroxy-3-methylbut- 3-enyl)-20,40-dihydroxychalcone and the known stipulin were isolated from both species. 3-(2-Hydroxy-3-methylbut-3-enyl)- 50-(3,3-dimethylallyl)-4,20,40-trihydroxychalcone and the known compounds: 4-hydroxylonchocarpin, kanzonol B, bartericins A, B, C and 30-(2-hydroxy -3-methylbut-3-enyl)-4,20,40-trihydroxychalcone were isolated from D. barteri while the known compounds: gancaonin Q, paratocarpins C, F, and lupeol were obtained from Dorstenia angusticornis. b-Sitosterol and its b-D-glucopyranoside were isolated from both species. Structures of these secondary metabolites were established using spectroscopic analysis, especially, NMR spectra in conjunction with 2D experiments, COSY, HMQC and HMBC. en
dc.language.iso en en
dc.publisher Elsevier Ltd. www.elsevier.com/locate/phytochem en
dc.subject Bartericins A-D en
dc.subject Dorstenia angusticornis en
dc.subject Dorstenia barteri var. subtriangularis en
dc.subject Moraceae en
dc.subject Twigs en
dc.subject Isolation en
dc.subject Prenylated chalcones en
dc.subject Angusticornins en
dc.title Prenylated chalcones, flavone and other constituents of the twigs of Dorstenia angusticornis and Dorstenia barteri var. subtriangularis en
dc.type Article en


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