[关键词]
[摘要]
目的 研究石斛属植物兜唇石斛Dendrobium aphyllum茎的化学成分。方法 采用硅胶、凝胶、MCI、中压制备色谱(MPLC)和高效液相半制备色谱(semi-HPLC)等方法进行分离纯化,根据理化性质、核磁共振谱及质谱等方法鉴定化合物结构。结果 从兜唇石斛的90%乙醇提取物中分离得到10个化合物,分别鉴定为4,7-二羟基-2-甲氧基-9,10-二氢菲(1)、2,4-二羟基-7-甲氧基-9,10-二氢菲(2)、2,5,7,9-四羟基-4-甲氧基-9,10-二氢菲(3)、4,7,9-三羟基-5-甲氧基-9,10-二氢菲(4)、松脂醇(5)、丁香酚-β-D-葡萄糖苷(6)、反式阿魏酸(7)、正十二烷醇(8)、β-谷甾醇(9)、β-胡萝卜苷(10)。结论 化合物1~2、5~8为首次从该属植物中分离得到,化合物1~10均为首次在该植物中分离得到。
[Key word]
[Abstract]
Objective To study the chemical constituents from ethanol extracts of the stems of Dendrobium aphyllum. Methods Ten compounds were isolated by silica gel, Sephadex LH-20 column chromatography and reversed-phase semi-HPLC. Results Ten compounds were identified by analyzing their spectral data and comparing with the previously reported literatures as 4,7-dihydroxy-2-methoxy-9,10-dihydroxyphenanthrene (1), 2,4-dihydroxy-7-methoxy-9,10-dihydroxyphenanthrene (2), 4-methoxy-2,5,7,9-tetrahydroxy-9,10-dihydrophe-nanthrene (3), 5-methoxy-4,7,9-trihydroxy-9,10-dihydrophenanthrene (4), pinoresinol (5), eugenol-β-D-glucoside (6), trans-ferulic acid (7), dodecan-1-ol (8), β-sitosterol (9), and β-daucosterol (10). Conclusion All compounds are isolated from this plant for the first time.
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[基金项目]
广西高校中青年教师基础能力提升项目(KY2016YB597);2017年度桂北特色药资源研究中心科研项目(KYA201701)