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wikstroemia/silicij dioksid
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5 rezultati
[Phenolic constituents from Wikstroemia chamaedaphne].
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The phenolic constituents of Wikstroemia chamaedaphne were investigated by various column chromatographic methods including silica gel,Sephadex LH-20,ODS and preparative HPLC,and their chemical structures were identified by physico-chemical properties and spectral analyses. Thirteen phenolic
[Studies on the chemical constituents of Wikstroemia indica].
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OBJECTIVE
To study the chemical constituents of Wikstroemia indica.
METHODS
The constituents were isolated and purified by silica gel chromatography repeatedly, and the structures were determined by spectral data and chemical envidance.
RESULTS
Six compounds were isolated from its petroleum ether,
[Studies on the chemical constituents in stem rind of Wikstroemia indica].
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OBJECTIVE
To study the chemical constituents in stem rind of Wikstroemia indica.
METHODS
The constituents were isolated by column chromatographies with silica gel and ODS, and identified by NMR, MS spectra.
RESULTS
Six compounds, daphnoretin-7-O-beta-D-glucoside (1), quercitin (2), physcion (3),
[A new dicoumarin from stem bark of Wikstroemia indica].
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OBJECTIVE
To study the chemical constituents form stem bark of Wikstroemia indica.
METHODS
The constituents were isolated by column chromatography on silica gel and ODS, and identified by spectroscopic methods.
RESULTS
Seven compounds, daphnoretin (I), tricin (II), daucosterol (III), beta-sitosterol
Curcumin and wikstroflavone B, a new biflavonoid isolated from Wikstroemia indica, synergistically suppress the proliferation and metastasis of nasopharyngeal carcinoma cells via blocking FAK/STAT3 signaling pathway
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Background: Curcumin (CUR) is a natural diarylheptanoid with marked anti-tumor activities. Recent investigations demonstrate that CUR combines with some other phytochemicals exerts advantages over its single application manifested as
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