[关键词]
[摘要]
目的 对山玉兰Magnolia delavayi叶的化学成分进行研究。方法 采用MCI、硅胶、Sephadex LH-20、HPLC等多种色谱技术进行分离纯化,根据波谱数据鉴定化合物的结构。结果 从山玉兰叶95%乙醇提取物中分离得到14个化合物,分别鉴定为 (2E)-3,7,11-trimethyl-2,10-dodecadien-l,6,7-triol(1)、(2E,6E)-3,7,11-trimethyl-2,6-dodecadien-l,10,11-triol(2)、黑麦草内酯(3)、松脂醇(4)、丁香脂素(5)、梣皮树脂醇(6)、桉脂素(7)、连翘脂素(8)、松柏醛(9)、3,4,5-三甲氧基肉桂醇(10)、3-吲哚甲醛(11)、3-吲哚乙醇(12)、3,4-二甲氧基苯甲酸(13)、3,4-二甲氧基苯酚(14)。结论 所有化合物均为首次从该植物中分离得到,并且首次报道化合物1的1H- 和13C-NMR数据。
[Key word]
[Abstract]
Objective To study the chemical constituents from the leaves of Magnolia delavayi. Methods The chemical constituents were isolated and purified by column chromatography on silica gel, Sephadex LH-20, MCI, and HPLC. Their structures were identified based on spectroscopic data. Results Fourteen compounds were isolated from 95% ethanol aqueous extract of M. delavayi and the structures were identified as (2E)-3,7,11-trimethyl-2,10-dodecadien-l,6,7-triol (1), (2E,6E)-3,7,11-trimethyl-2,6-dodecadien-l,10,11- triol (2), loliolide (3), pinoresinol (4), syringaresinol (5), medioresinol (6), eudesmin (7), phillygenin (8), coniferaldehyde (9), 3,4,5-trimethoxycinnamyl alcohol (10), indole-3-carboxaldehyde (11), indole-3-ethanol (12), 3,4-dimethoxy-benzoic acid (13), and 3,4-dimethoxyphenol (14). Conclusion All compounds are isolated from this plant for the first time. In addition, the 1H- and 13C-NMR spectroscopic data are reported for the first time in the current study.
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[基金项目]
国家自然科学基金项目(21662023,81773611);云南省科技厅-昆明医科大学应用基础研究联合专项基金项目(2017FE467-016);云南省教育厅科学研究基金指导性项目(2017zDX156);云南省应用基础研究面上项目(2015FB173)