[关键词]
[摘要]
目的 研究美花圆叶筋骨草Ajuga ovalifolia var.calantha的化学成分。方法 采用硅胶柱色谱、Sephadex LH-20凝胶柱色谱、ODS柱色谱和半制备型高效液相色谱等方法分离纯化,通过波谱学手段进行结构鉴定。结果 从美花圆叶筋骨草全草95%乙醇提取物中分离得到了13个化合物,分别鉴定为(16S)-12,16-epoxy-11,14-dihydroxy-17(15→16)-abeo-abieta-8,11,13-trien-7-one(1)、痢止蒿乙素(2)、ajudecumin A(3)、14,15-dihydroajugapitin(4)、杯苋甾酮(5)、β-谷甾醇(6)金合欢素(7)、芹菜素(8)、木犀草素(9)、东莨菪亭(10)、异东莨菪亭(11)、4-羟基-3-甲氧基苯甲醛(12)、乙酰香子兰酮(13)。结论 化合物1、10~13为首次从该属植物中分离得到,化合物2~5、7均为首次从该植物中分离得到;并对化合物1进行了单晶X射线衍射实验,首次得到化合物1的单晶X射线衍射晶体结构数据。
[Key word]
[Abstract]
Objective To investigate the chemical constituents of Ajuga ovalifolia var. calantha. Methods The 95% ethanol extract from the whole herb of A. ovalifolia var. calantha was separated and purified by column chromatography over silica gel, Sephadex LH-20, ODS, and RP-HPLC. Their chemical structures were identified on the basis of physicochemical characteristics and spectral analyses. Results Thirteen compounds were isolated and identified as (16S)-12,16-epoxy-11,14-dihydroxy-17 (15→16)-abeo-abieta-8,11,13-trien-7-one (1), ajuforrestin B (2), ajudecumin A (3), 14,15-dihydroajugapitin (4), cyasterone (5), β-sitosterol (6), acacetin (7), apigenin (8), luteolin (9), scopoletin (10), isoscopoletin (11), 4-hydroxy-3-methoxy-benzaldehyde (12), and acetovanillon (13). Conclusion Compounds 1 and 10-13 are reported from the genus Ajuga Linn., and compounds 2-5 and 7 are isolated from this plant for the first time. Single crystal X-ray diffraction experiment is carried out for compound 1, and the crystal structure data of single crystal X-ray diffraction of compound 1 is obtained for the first time.
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[基金项目]
国家基础科学培养基金项目(J13100340-11);四川省教育厅一般项目(17ZB0156);中药药效物质基础研究与创新中药发现四川省青年科技创新研究团队(2016TD0006);成都中医药大学科技园大学生创新创业项目(KJYYB1610);成都中医药大学大学生科研实践创新课题(ky-2016094);四川省定向财力转移支付项目-红原县特色中藏药资源开发与示范(2016SZYZF0002)