Chalconoid and stilbenoid glycosides from Guibourtia tessmanii
- PMID: 12150803
- DOI: 10.1016/s0031-9422(02)00108-5
Chalconoid and stilbenoid glycosides from Guibourtia tessmanii
Abstract
Phytochemical studies on the stem bark of Guibourtia tessmanii yielded a dihydrochalcone glucoside, 2',4-dihydroxy-4'-methoxy-6'-O-beta-glucopyranoside dihydrochalcone and a new stilbene glycoside, 3,5-dimethoxy-4'-O-(beta-rhamnopyranosyl-(1-->6)-beta- glucopyranoside) stilbene besides the known pterostilbene. Their structures were established on the basis of one and two dimensional NMR spectroscopic techniques, FABMS and chemical evidence.
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