Abstract
Successive fractionation of a crude methanolic extract of cultured Plagiorhegma dubium cells, followed by assay of the biological activity using cobra venom factor induced
paw oedema, led to the detection and isolation of three compounds with antiinflammatory
activity. The substances were identified as the protoberberine alkaloid jatrorrhizine
and the lignaneglucosides dehydrodiconiferyl-alcohol-4-β-D-glucoside and its isomer dehydrodiconiferyl-alcohol-γ-β-D-glucoside, the latter a compound not previously described in the literature.
