Abstract
A new (-)-4-oxo-2,6-bis-(3',4'-methylenedioxy phenyl)-3, 7-dioxabicyclo[3, 3, 0] octane lignan, genkdaphin was isolated from the leaves of Daphne genkwa Sieb. et Zucc. mp 118-119.5 degrees C, C20H16O7 (HRMS, 368.08631, M+), [alpha]27D-64.8 degrees (c 0.5, CHCl3). On the basis of UV, IR, MS, 1H and 13CNMR spectral analysis, the structure of the genkdaphin has been established as (-)-4-oxosesamin.
MeSH terms
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Bridged Bicyclo Compounds / chemistry
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Bridged Bicyclo Compounds / isolation & purification*
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Bridged Bicyclo Compounds, Heterocyclic*
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Dioxolanes / chemistry
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Dioxolanes / isolation & purification*
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Drugs, Chinese Herbal / chemistry*
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Plants, Medicinal / analysis*
Substances
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Bridged Bicyclo Compounds
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Bridged Bicyclo Compounds, Heterocyclic
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Dioxolanes
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Drugs, Chinese Herbal
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genkdaphine