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Structure type: oligomer ; 735.2868 [M+H]+
C₃₆H₄₆O₁₆
Trivial name: umbilicaxanthoside B
Compound class: glycoside
Contained glycoepitopes: IEDB_142488,IEDB_146664,IEDB_983931,SB_192

• Article ID: 8367
  Rezanka T, Jáchymová J, Dembitsky VM "Prenylated xanthone glucosides from Ural's lichen Umbilicaria proboscidea" - Phytochemistry 62(4) (2003) 607-612
  

  Two new compounds isolated from an extract of a Central Asian lichen [Umbilicaria proboscidea (L.) Schrader=Syn.: Gyrophora proboscidea (L.) Ach.] are glucosides with mono- and di-prenylated xanthones as the aglycones and a saccharide moiety from two glucoses linked at C-7. The structures were elucidated on the basis of extensive spectroscopic analysis (1D and 2D NMR, MS, IR and UV) and by hydrolysis

  lichen, Umbilicaria proboscidea, prenylated xanthones, xanthone glucosides

  NCBI PubMed ID: 12560034
  Publication DOI: 10.1016/s0031-9422(02)00539-3
  Journal NLM ID: 0151434
  Publisher: Elsevier
  Correspondence: Rezanka T
  Institutions: Institute of Microbiology, Prague, Czech, Department of Pharmaceutical Chemistry and Natural Products School of Pharmacy, Hebrew University of Jerusalem, Jerusalem, Israel
  Methods: 13C NMR, 1H NMR, gel filtration, NMR-2D, IR, FAB-MS, acid hydrolysis, GC, UV, enzymatic digestion, extraction, optical rotation measurement, RP-HPLC, melting point determination, derivatization, HR-FAB-MS
  
   
  
  Umbilicaria proboscidea
  CSDB ID 48174 (all data & tools)