Wanjala C C, Majinda R R
Department of Chemistry, University of Botswana, Private Bag 00704, Gaborone, Botswana.
Fitoterapia. 2001 Aug;72(6):649-55. doi: 10.1016/s0367-326x(01)00295-7.
A new stilbene glycoside, 5-methoxy-(E)-resveratrol 3-O-rutinoside (1) was isolated from the root bark of Elephantorrhiza goetzei, along with known compounds, namely gallic acid, (E)-resveratrol, (+/-)-catechin, (+/-)-gallocatechin and oleanene triterpenoids. The combined ethyl acetate-methanol extract exhibited high lethality against brine shrimp larvae (LC(50) 10.8 ppm) compared to the isolates, some of which were not active.
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