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

@article{Park2002StructureDO,
  title={Structure determination of a new lupane-type triterpene, tiarellic acid, isolated from Tiarella polyphylla.},
  author={Si-Hyung Park and Sei-Ryang Oh and K S Ahn and Jae-Gil Kim and Hyeong-Kyu Lee},
  journal={Archives of pharmacal research},
  year={2002},
  volume={25 1},
  pages={57-60}
}
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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