摘要
采用硅胶、Sephadex LH-20结合高压半制备高效液相色谱技术研究知母Anemarrhena asphodeloides的须根中的化学成分。通过理化性质和波谱数据鉴定了5个化合物:methyl 2-[2,4-dihydroxy-3-(4-hydroxybenzoyl)-6-methoxypheyl]acetate(1)、4-[formyl-5-(methoxymethyl)-1H-pyrrol-1-yl] butanoate(2)、川芎哚(3)、丁香脂酚-4′-β-D-葡萄糖苷(4)和4′,6-dihydroxy-4-methoxybenzophenone-2-O-(2″),3-C-(1″)-1″-desoxy-α-L-fructofuranoside(5)。其中化合物1为新化合物,化合物2~5均为首次从该植物中得到。并检测新化合物1对H_2O_2诱导的SH-SY5Y细胞损伤的神经保护活性。
Five compounds were isolated from the fibrous roots of Anemarrhena asphodeloides by silica gel, Sephadex LH-20 and semi-HPLC column chromatography. On the basis of physic-chemical properties and spectroscopic data analysis, these compounds were identified as methyl 2-[2,4-dihydroxy-3-(4-hydroxybenzoyl)-6-methoxyphenyl]acetate(1), 4-[formyl-5-(methoxymethyl)-1H-pyrrol-1-yl]butanoate(2), perlolyrine(3),syringaresinol-4′-O-β-D-glucoside(4) and 4′,6-dihydroxy-4-methoxybenzophenone-2-O-(2″),3-C-(1″)-1″-desoxy-α-L-fructofuranoside(5). Among them, 1 was a new benzophenone. Compounds 2-5 were isolated from this plant for the first time. Compound 1 was tested for neuroprotective effects against H_2O_2-induced damage in SH-SY5 Y cells.
引文
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