Flavonoid glucuronides from Helicteres isora

Kohei Kamiya, Yasuhisa Saiki, Takao Hama, Yasuo Fujimoto, Endang Hanani, Umar Mansur, Toshiko Satake

Research output: Contribution to journalArticlepeer-review

34 Citations (Scopus)


Five flavonoid glucuronides were obtained from the fruit of Helicteres isora, three of which were previously unknown compounds: Isoscutellarein 4′-methyl ether 8-O-β-o-glucuronide 6″-n-butyl ester, isoscutellarein 4′-methyl ether 8-O-β-o-glucuronide 2″, 4″-disulfate and isoscutellarein 8-O-β-D-glucuronide 2″,4″-disulfate. The structures were determined on the basis of spectroscopy and hydrolysis experiments.

Original languageEnglish
Pages (from-to)297-301
Number of pages5
Issue number2
Publication statusPublished - 1 May 2001


  • Flavonoid glucuronide
  • Helicteres isora
  • Jamu
  • Sterculiaceae
  • Structural elucidation
  • Sulfate

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