Abstract
The phytochemical study of the roots of Phlomis umbrosa Turcz afforded a new phenylethanoid glycoside, 3-hydroxy-4-methoxy-β-phenylethoxy-O-[2,3-diacetyl-α-l-rhamnopyranosyl-(1 → 3)]-4-O-cis-feruloyl-[β-d-apiofuranosyl-(1 → 6)]-β-d-glucopyranoside (1), and two new 28-noroleanane-derived spirocyclic triterpenoids, phlomishexaol C (2) and phlomishexaol D (3). Their structures were elucidated on the basis of 1D and 2D NMR analyses, in combination with high-resolution MS experiment.
Publication types
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Research Support, Non-U.S. Gov't
MeSH terms
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Drugs, Chinese Herbal / chemistry
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Drugs, Chinese Herbal / isolation & purification*
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Glycosides / chemistry
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Glycosides / isolation & purification*
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Molecular Structure
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Nuclear Magnetic Resonance, Biomolecular
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Phlomis / chemistry*
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Rhizome / chemistry
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Stereoisomerism
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Triterpenes / chemistry
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Triterpenes / isolation & purification*
Substances
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3-hydroxy-4-methoxy-beta-phenylethoxy-O-(2,3-diacetyl-alpha-L-rhamnopyranosyl-(1-3))-4-O-cis-feruloyl-(beta-D-apiofuranosyl-(1-6))-beta-D-glucopyranoside
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Drugs, Chinese Herbal
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Glycosides
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Triterpenes
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phlomishexaol C
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phlomishexaol D