排序方式: 共有25条查询结果,搜索用时 0 毫秒
21.
田基黄化学成分的研究 总被引:2,自引:0,他引:2
田基黄为藤黄科植物地耳草(Hypericum japonicum Thunb.ex Murray)的全草.本品始载于<生草药性备要>,<植物名实图考>中称地耳草.田基黄味甘、微苦,性凉,具有清热利湿、解毒的功效,主要用于治疗传染性肝炎、泻痢、小儿惊风、疳积、喉蛾、肠痈、疖肿蛇蛟伤等.现代药理研究表明田基黄具有抑菌、保肝、抑制肿瘤作用,对心血管系统也有作用,目前田基黄已被提炼制成针剂用于临床治疗急、慢性肝炎[1,2].文献报道[3~8]该植物中含有多种化学成分,如:色原烯类 (chromeme),二氢黄酮醇鼠李糖苷(flavanonol rhamnoside),缩二氨酸衍生物(dipeptide derivative), 吨酮类(xanthones),间环己三醇衍生物(phloroglucinol derivatives)等.为进一步探明其有效成分,我们对其进行了系统的化学成分研究. 相似文献
22.
23.
Objective:To investigate the chemical constituents of Polygala japonica Houtt.. Methods:The constituents were separated and purified by column chromatographies with silical gel, RP-silical gel and Sephadex LH-20. Their structures were elucidated on the basis of spectral data (IR, MS, 1H-NMR, 13C-NMR, HMQC and HMBC). Results: Totally 15 compounds were obtained from Polygala japonica Houtt. And their structures were identified as castaprenol-12 (Ⅰ), β-sitosterol (Ⅱ), stigmasterol (Ⅲ),stigmasta-7,22-di-ene-3-one (Ⅳ), n-dotriacontanol ( Ⅴ ), n-hexadecanol ( Ⅵ ), arachidic acid (Ⅶ), erogosterol (Ⅷ), kaempferol (Ⅸ), quercetin (Ⅹ), daucosterol (Ⅺ), p-hydroxybenzoic acid (Ⅻ),coumaric acid (ⅩⅢ), rhamnocitrin 3-O-β-D-galactopyranoside (ⅪⅤ), quercetin 3-O-β-D-glucopyranoside (ⅩⅤ). Conclusion: Compounds Ⅰ , Ⅲ , Ⅳ, Ⅴ , Ⅵ, Ⅶ, Ⅷ, Ⅻ , ⅩⅢ and ⅩⅣ were obtained from this plant for the first time. 相似文献
24.
25.