[关键词]
[摘要]
目的 研究沙棘Hippophae rhamnoides叶的化学成分及其抗炎和抗肥胖活性。方法 采用硅胶、ODS、Sephadex LH-20、MCI CHP20柱色谱和半制备液相等方法进行分离纯化,通过波谱分析鉴定化合物的结构。对分离得到的化合物进行体外抑制RAW264.7巨噬细胞一氧化氮生成的抗炎活性和抑制3T3-L1脂肪细胞三酰甘油蓄积的抗肥胖活性评价。结果 从沙棘叶中分离得到18个鞣质类化合物,分别鉴定为1,2,6-三-O-没食子酰基-β-D-吡喃葡萄糖(1)、1,3,6-三-O-没食子酰基-β-D-吡喃葡萄糖(2)、1,4,6-三-O-没食子酰基-β-D-吡喃葡萄糖(3)、1,3,4,6-四-O-没食子酰基-β-D-吡喃葡萄糖(4)、1,2,3,6-四-O-没食子酰基-β-D-吡喃葡萄糖(5)、1,2,3,4,6-五-O-没食子酰基-β-D-吡喃葡萄糖(6)、1-O-没食子酰基-4,6-(S)-六羟基联苯甲酰基-β-D-吡喃型葡萄糖(7)、1-O-没食子酰基-2,3-(S)-六羟基联苯甲酰基-β-D-吡喃型葡萄糖(8)、1,3-二-O-没食子酰基-4,6-(S)-六羟基联苯甲酰基-β-D-吡喃型葡萄糖(9)、1,6-二-O-没食子酰基-2,3-(S)-六羟基联苯甲酰基-β-D-吡喃型葡萄糖(10)、木麻黄鞣亭(11)、1,2,3-三-O-没食子酰基-4,6-(S)-六羟基联苯二甲酰基-β-D-吡喃型葡萄糖(12)、1,4,6-三-O-没食子酰基-2,3-(S)-六羟基联苯二甲酰基-β-D-吡喃型葡萄糖(13)、hippophaenin B(14)、pedunculagin(15)、木麻黄鞣宁(16)、鞣花酸(17)和松醇(18)。结论 化合物2、3、5、6、8、10、12和13为首次从该属植物中分离得到,沙棘叶中的鞣质类化合物具有较强的抗炎活性和抗肥胖活性。
[Key word]
[Abstract]
Objective To study the anti-inflammatory and anti-obesity constituents from the leaves of Hippophae rhamnoids. Methods Several open-column chromatographic techniques and semi-preparative HPLC were used to separate and purify the compounds in H. rhamnoids. The structures of isolated compounds were elucidated by the spectroscopic analysis. Their inhibitory effects on nitric oxide production in RAW264.7 cells, and triglyceride accumulation in 3T3-L1 cells were examined. Results Eighteen tannins and other compounds were isolated and identified as 1,2,6-tri-O-galloyl-β-D-glucopyranose (1), 1,3,6-tri-O-galloyl-β-D-glucopyranose (2), 1,4,6-tri-O-galloyl-β-D-glucopyranose (3), 1,3,4,6-tetra-O-galloyl-β-D-glucopyranose (4), 1,2,3,6-tetra-O-galloyl-β-D-glucopyranose (5), 1,2,3,4,6-penta-O-galloyl-β-D-glucopyranose (6), 1-O-galloyl-4,6-(S)-HHDP-β-D-glucopyranose (7), 1-O-galloyl-2,3-(S)-HHDP-β-D-glucopyranose (8), 1,3-di-O-galloyl-4,6-(S)-HHDP-β-D-glucopyranose (9), 1,6-di-O-galloyl-2,3-(S)-HHDP-β-D-glucopyranose (10), casuarictin (11), 1,2,3-tri-O-galloyl-4,6-(S)-HHDP-β-D-glucopyranose (12), 1,4,6-tri-O-galloyl-2,3-(S)-HHDP-β-D-glucopyranose (13), hippophaenin B (14), pedunculagin (15), casuarinin (16), ellagic acid (17), and pinitol (18) Conclusion Tannins from the leaves of H. rhamnoides showed anti-inflammatory and anti-obesity activities. Compounds 2, 3, 5, 6, 8, 10, 12, and 13 were isolated from this genus for the first time
[中图分类号]
R284.1
[基金项目]
国家重点研发计划政府间国际科技创新合作重点专项(2016YFE0129000);甘肃省中医药管理局科研课题(GZK-2015-21);兰州大学中央高校基本科研业务费专项资金资助(lzujbky-2017-k26)