Abstract
A benzoquinone, named alopecuquinone, was isolated from the ethanol extract of the inflorescences of Cyperus alopecuroides. Its structure was primarily elucidated by spectroscopic analysis including 1H, 13C NMR, APT, HMQC, 1H-1H COSY and CIMS. The known flavonoids, vicenin 2, orientin, diosmetin, quercetin 3,3'-dimethyl ether and its 3,4'-dimethyl ether, were also isolated and characterized. The ethanol extract of the plant material showed moderate estrogenic activity using a strain of Saccharomyces cerevisiae.
Publication types
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Research Support, Non-U.S. Gov't
MeSH terms
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Benzoquinones / chemistry*
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Benzoquinones / isolation & purification*
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Benzoquinones / pharmacology
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Cyperus / chemistry*
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Egypt
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Estrogens, Non-Steroidal / chemistry
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Estrogens, Non-Steroidal / isolation & purification
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Estrogens, Non-Steroidal / pharmacology
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Flavonoids / chemistry*
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Flavonoids / isolation & purification*
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Flavonoids / pharmacology
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Galactosidases / metabolism
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Humans
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Isoflavones*
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Magnoliopsida / chemistry*
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Mass Spectrometry / methods
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Nuclear Magnetic Resonance, Biomolecular / methods
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Oils, Volatile / analysis
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Oils, Volatile / chemistry
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Phytoestrogens
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Plant Extracts
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Plant Preparations
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Plants, Medicinal
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Plasmids / biosynthesis
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Plasmids / metabolism
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Receptors, Estrogen / metabolism
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Saccharomyces cerevisiae / drug effects
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Saccharomyces cerevisiae / enzymology
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Spectrophotometry, Ultraviolet
Substances
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Benzoquinones
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Estrogens, Non-Steroidal
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Flavonoids
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Isoflavones
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Oils, Volatile
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Phytoestrogens
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Plant Extracts
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Plant Preparations
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Receptors, Estrogen
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quinone
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Galactosidases