Bioactive Pyranoxanthones from the Roots of Calophyllum blancoi

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Abstract

Phytochemical investigation of the roots of Calophyllum blancoi growing in Taiwan resulted in the isolation of three new pyranoxanthones, blancoxanthone (1), acetyl blancoxanthone (2) and 3-hydroxyblancoxanthone (3), in addition to two known pyranoxanthones, pyranojacaeubin (4) and caloxanthone (5). Structural characterization of the isolated compounds was determined by spectral analyses especially 2-D NMR. Biological study of the isolated xanthones revealed that blancoxanthone (1) exhibited significant anti-coronavirus activity.

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Codes

  • NII Article ID (NAID)
    110003665544
  • NII NACSIS-CAT ID (NCID)
    AA00602100
  • Text Lang
    ENG
  • Article Type
    NOT
  • ISSN
    00092363
  • NDL Article ID
    7233891
  • NDL Source Classification
    ZS51(科学技術--薬学) // ZP1(科学技術--化学・化学工業)
  • NDL Call No.
    Z53-D167
  • Data Source
    CJP  NDL  NII-ELS  J-STAGE 
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