日期:2023-04-21 18:04
狀態:待解決
提問:kjcxac
chemical constituents and antibacterial activities ofC. cyrtophyllumin Guizhou, China. Macroporous adsorption resin, reversed phase column chromatography, silica gel column chromatography, Sephadex LH-20 column chromatagraphy, and semi-preparative high performance liquid chromatography were used to separate and purify 95% ethanol extracts fromC.Cyrtophyllum. The antibacterial activities were evaluated by MTT method. The results showed 18 compounds were isolated and identified as friedelin(1),-a
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