Ellagitannins and lignan glycosides from Balanophora japonica (Balanophoraceae).

  title={Ellagitannins and lignan glycosides from Balanophora japonica (Balanophoraceae).},
  author={Zhi-Hong Jiang and Takashi Tanaka and Hiromi Iwata and Saori Sakamoto and Yoko Hirose and Isao Kouno},
  journal={Chemical & pharmaceutical bulletin},
  volume={53 3},
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.