Structure determination of a new lupane-type triterpene, tiarellic acid, isolated from Tiarella polyphylla

Arch Pharm Res. 2002 Feb;25(1):57-60. doi: 10.1007/BF02975262.

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.

MeSH terms

  • Antineoplastic Agents, Phytogenic / chemistry
  • Korea
  • Magnetic Resonance Spectroscopy
  • Molecular Conformation
  • Plants, Medicinal / chemistry*
  • Spectrometry, Mass, Electrospray Ionization
  • Spectrophotometry, Infrared
  • Triterpenes / chemistry*
  • Triterpenes / isolation & purification

Substances

  • Antineoplastic Agents, Phytogenic
  • Triterpenes
  • tiarellic acid
  • euscaphic acid
  • corosolic acid