Abstract:
:The twigs of Dorstenia prorepens furnished the digeranylated chalcone, 5,3'-(3,7-dimethyl-2,6-octadienyl)-3,4, 2',4'-tetrahydroxychalcone while Dorstenia zenkeri yielded the 3',4'-(3-hydroxy-2,2-dimethyldihydropyrano)-4,2'-dihydroxychalcone and a bichalcone. 4-Hydroxylonchocarpin was found in both plants. D. prorepens also yielded the known compounds: psoralen, bergapten, beta-sitosterol and its D-glucopyranosyl derivative. D. zenkeri yielded p-hydroxybenzaldehyde, dorsmanin A, 4,2',4'-trihydroxychalcone and 4,2',4'-trihydroxy-3'-prenylchalcone. Structures of the new compounds were established by UV, IR, MS and 2-D NMR analysis.
journal_name
Phytochemistryjournal_title
Phytochemistryauthors
Abegaz BM,Ngadjui BT,Dongo E,Ngameni B,Nindi MN,Bezabih Mdoi
10.1016/s0031-9422(01)00483-6subject
Has Abstractpub_date
2002-04-01 00:00:00pages
877-83issue
8eissn
0031-9422issn
1873-3700pii
S0031942201004836journal_volume
59pub_type
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