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Chalconoid and stilbenoid glycosides from Guibourtia tessmanii
V Fuendjiep1, J Wandji, F Tillequin
1Centre de Recherche en Plantes Médicinales et Médecine Traditionnelle, IMPM, BP 193 Yaoundé, Cameroon.
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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