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patrinia intermedia/dioxyde de silicium
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9 résultats
Supercritical fluid extraction of aurentiamide acetate from Patrinia villosa Juss and subsequent isolation by silica gel and high-speed counter-current chromatography.
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Supercritical fluid extraction (SFE) of aurentiamide acetate from Patrinia villosa Juss was performed. The optimization of parameters was carried out using an analytical-scale supercritical fluid extraction (SFE) system. Then the extraction was scaled up by 100 times using a preparative SFE system
[Chemical Constituents from Patrinia villosa].
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To investigate the chemical constituents from the ethanol extract of Patrinia villosa.
Various column chromatographic methods including silica gel and Sephadex LH-20 were used for the isolation and purification. Chemical structures were elucidated on the basis of spectroscopic analysis.
Six
[Studies on chemical constituents of Patrinia villosa].
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OBJECTIVE
To investigate the chemical constituents of Patrinia villosa.
METHODS
The chemical constituents were isolated by silica gel column chromatography and semi-preparative high-performance liquid chromatography, and identified by physicochemical properties and spectral analysis (MS, 1H-NMR and
New flavonoid from Patrinia villosa.
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BACKGROUND
Patrinia villosa (Thunb.) Juss (Valerianaceae) is an important ancient herbal medicine widely used for inflammation, wound healing, and abdominal pain. But little is known of the phytochemical constituents of this herbal plant.
OBJECTIVE
The objective of this study is to isolate and
A cytotoxic natural product from Patrinia villosa Juss.
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[Studies on chemical constituents of Patrinia villosa].
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OBJECTIVE
To inverstigate the chemical constituents of Patrinia villosa.
METHODS
Under the direction of tetrazolium salt (MTf) assay, the chemical constituents were isolated by silica gel column chromatography and identified by physicochemical properties and spectral analysis (MS, FAB-MS, 1H NMR,
[Isolation and structure identification of chemical constituents from Patrinia villosa].
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OBJECTIVE
To study the chemical constituents of Patrinia villosa Juss.
METHODS
Solvent extraction, silica gel column and preparative liquid chromatography were used to separate the chemical constituents, and the chemical structures were elucidated by physico-chemical properties and spectra
[Study on the chemical constituents from Patrinia scabra].
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OBJECTIVE
To study the chemical constituents from Patrinia scabra Bunge.
METHODS
Chemical constituents were isolated and purified by silica gel and Sephadex LH-20 column chromatography. Their structures were elucidated on the basis of spectroscopic analysis and chemical evidence.
RESULTS
Seven
[Studies on the chemical constituents of Patrinia scabiasaefolia fisch].
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OBJECTIVE
To study the chemical compositions of the root and stem of Patrinia scabiasaefolia.
METHODS
Five compounds were obtained from the ethy acetate extract of the root and stem of P. scabiasaefolia by silica column chromatography, and identified by chemical and spectroscopic
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