锁阳化学成分研究Ⅱ

 目的研究常用补肾助阳中药锁阳(Herba Cynomorii)的化学成分。方法采用大孔吸附树脂、聚酰胺、硅胶、SephadexLH-20和ODS柱等色谱手段进行化学成分的分离纯化;依据理化常数、光谱数据、对照品和相关文献进行结构鉴定。结果分离得到并鉴定了11个化合物,分别为柑桔素(naringenin,1)、柑桔素-4′-O-β-吡喃葡萄糖苷(naringenin-4′-O-β-pyranoglucose;choerospondin,2)、异槲皮苷(isoquercetin,3)、儿茶素(+)catechin,4]、表儿茶素(-)epicatechin,5)]、乙酰熊果酸(acetyeursolic acid,6)、葡萄糖(glucose,7)、熊果酸(ursolic acid,8)、β-谷甾醇(β-sitosterol,9)、棕榈酸(palmitic acid,10)和胡萝卜苷(daucosterol,11)。结论化合物1,3,5,7为首次从锁阳中得到。对其中5种成分1,2,4,6,8首次建立了定性鉴别和含量测定方法,为锁阳药材的质量控制标准提供了科学依据。

Studies on Chemical Constituents of Herba Cynomorii

OBJECTIVE To investigate the chemical constituents from Herba cynomorii.METHODS The compounds were isolated by means of column chromatography on SP825,polyamide,silica gel,sephadex LH-20 and ODS.Their structures were identified by physicochemical properties and spectra.RESULTS Eleven compounds were obtained and identified as naringenin(1),naringenin-4′-O-β-pyranoglucose(2),isoquercetin(3),(+)catechin(4),(-)epicatechin(5),acetyl ursolic acid(6),glucose(7),ursolic acid(8),β-sitosterol(9),palmitic acid(10) and daucosterol(11). CONCLUSION Compounds 1,3,5 and 7 are isolated from this plant for the first time.