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作 者:李旭山[1] 江志勇[2] 王福生[1] 马云保[2] 张雪梅[2] 陈纪军[2]
机构地区:[1]大理学院药学院,云南大理671003 [2]中国科学院昆明植物研究所植物化学与西部植物资源持续利用国家重点实验室,云南昆明650204
出 处:《中国中药杂志》2008年第23期2790-2793,共4页China Journal of Chinese Materia Medica
摘 要:目的:对龙胆科獐牙菜属植物青叶胆Swertia mileensis的干燥全草进行化学成分研究。方法:青叶胆的干燥全草用50%乙醇提取,依次用石油醚、氯仿、正丁醇萃取,对氯仿部分采用各种柱色谱进行分离纯化,通过波谱数据分析进行结构鉴定。结果:从氯仿部分分离鉴定了12个化合物,其中8个(口山)酮,1,5,8-三羟基-3-甲氧基(口山)酮(1),1-羟基-2,3,5,7-四甲氧基(口山)酮(2),1-羟基-3,5,8-三甲氧基(口山)酮(3),1-羟基-2,3,4,6-四甲氧基(口山)酮(4),1.羟基-2,3,4,7-四甲氧基(口山)酮(5),1,8-二羟基3,5-二甲氧基(口山)酮(6),1,7-二羟基-3,8-二甲氧基(口山)酮(7),1,3,5,8-四羟基(口山)酮(8),1个木脂素,balanophonin(9),3个三萜,齐墩果酸(10),山楂酸(11),苏门树脂酸(12)。结论:化合物1,3,7—9,11,12为首次从青叶胆中分离得到。Objective: To study the chemical constituents of Swertia mileensis. Method: The air-dried whole plants of S. mileensis were extracted with 50% EtOH. The EtOH extract was suspended in H20 and extracted with petroleum ether, CHCl3 and n- BuOH successively. The compounds were isolated and purified by column chromatography from the CHCl3 fraction, and identified based on spectral analyses (MS, ^1H-NMR, ^13 C-NMR). Result: Twelve compounds were isolated from S. mileensis, and were elucidated as 1,5, 8- trihydroxy-3-methoxyxanthone (1), 1-hydroxyl-2, 3, 5, 7-tetramethoxyxanthone (2), 1-hydroxyl-3, 5, 8-trimethoxyxanthone (3), 1-hydroxyl-2, 3, 4, 6-tetramethoxyxanthone (4), 1-hydroxyl-2, 3, 4, 7-tetramethoxyxanthone (5), 1, 8-dihydroxy-3, 5-dimethoxyxanthone (6), 1, 7-dihydroxy-3, 8-dimethoxyxanthone (7), 1, 3, 5, 8-tetrahydroxyxanthone (8), balanophonin (9), oleanolic acid (10), maslinic acid (11), sumaresinolic acid (12). Conclusion: Compounds 1, 3, 7-9, 11 and 12 were obtained from S. mileensis for the first time.
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