Structure Determination of a New Lupane-type Triterpene, Tiarellic Acid, Isolated from Tiarella polyphylla

  • Lee, Hyeong-Kyu (Immunomodulator Research Laboratory Korea Research Institute of Bioscience & Biotechnology) ;
  • Park, Si-Hyung (Department of Medicinal Plant Resources, Mokpo National University) ;
  • Oh, Sei-Ryang (Immunomodulator Research Laboratory Korea Research Institute of Bioscience & Biotechnology) ;
  • Ahn, Kyung-Seop (Immunomodulator Research Laboratory Korea Research Institute of Bioscience & Biotechnology) ;
  • Kim, Jae-Gil (Institute of Natural Drug Resources)
  • Published : 2002.02.01

Abstract

A new 27-carboxylic lupane-type triterpene, tiarellic acid (1), was isolated from Tiarella polyphylla together with corosolic acid (2) and tormentic acid (3). Tiarellic acid was characterized as 3,23-dihydroxy-20(29)-lupen-27-oic acid and its NMR data were unambiguously assigned using 2-D NMR techniques.

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References

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