Abstract
Six neo-clerodane diterpenoids were isolated from the acetone extract of Teucrium quadrifarium Buch-Ham (I, II, IV, V, VI and VII). Five of them (I, II, IV, V and VII) were identified as known compounds, teucvidin, 12-epi-teucvidin, teuflin, 19-acetyl-teuspinin and teucvidin, respectively. Compound VI was found to be a new neo-clerodane diterpene, named teuquadrin B. Its structure has been determined from the physical and spectral data.
Publication types
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English Abstract
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Research Support, Non-U.S. Gov't
MeSH terms
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Antineoplastic Agents, Phytogenic / chemistry
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Antineoplastic Agents, Phytogenic / isolation & purification*
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Benzofurans / chemistry
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Benzofurans / isolation & purification*
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Drugs, Chinese Herbal / chemistry*
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Molecular Structure
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Spiro Compounds / chemistry
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Spiro Compounds / isolation & purification*
Substances
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Antineoplastic Agents, Phytogenic
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Benzofurans
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Drugs, Chinese Herbal
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Spiro Compounds
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teuquadrin B