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