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.
出处
《中国中药杂志》
CAS
CSCD
北大核心
2008年第23期2790-2793,共4页
China Journal of Chinese Materia Medica
关键词
青叶胆
(口山)酮
木脂素
三萜
Swertia mileensis
xanthones
lignans
triterpenoids