wikstroemia elliptica/silica

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

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,

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),

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

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