Abstract
A new 3-phenylcoumarin, indicanine A (1), has been isolated from the root bark of the African medicinal plant Erythrina indica, together with three known compounds, robustic acid (2), daidzein, and 8-prenyldaidzein. The structure of the new compound was characterized, as 4-hydroxy-5-methoxy-3-(4'-methoxyphenyl)-2" -(1-methylethenyl)dihydrofurano[4",5":6,7]coumarin by means of extensive spectroscopic analyses. The compounds were found to be devoid of in vitro antibacterial activity.
Publication types
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Research Support, Non-U.S. Gov't
MeSH terms
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Coumarins / chemistry
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Coumarins / isolation & purification*
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Coumarins / pharmacology
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Erythrina / chemistry*
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Escherichia coli / drug effects
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Isoflavones / chemistry
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Isoflavones / isolation & purification
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Isoflavones / pharmacology
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Microbial Sensitivity Tests
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Mycobacterium / drug effects
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Plant Roots / chemistry
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Plants, Medicinal*
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Staphylococcus aureus / drug effects
Substances
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Coumarins
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Isoflavones
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indicanine A
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robustic acid
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daidzein