Ellagitannins and Lignan Glycosides from Balanophora japonica (Balanophoraceae)

Three new ellagitannins named balanophotannins A?C having a 1,1′-(3,3′,4,4′-tetrahydroxy)dibenzofurandicarboxyl group in their molecules and four known lignan glycosides were isolated from the extracts of fresh aboveground and underground parts of a medicinal parasitic plant Balanophora japonica (Balanophoraceae). Their structures were elucidated on the basis of spectral and chemical evidence. Chemotaxonomic significance of the known lignan glycosides in Balanophora japonica was discussed.
Chemical & Pharmaceutical Bulletin v.53(3) p.339-341, 2005