[关键词]
[摘要]
目的 研究马鞭草Verbena officinalis醋酸乙酯抗炎活性部位的化学成分。方法 运用多种色谱技术和波谱手段进行分离、纯化和鉴定化合物,通过抑制一氧化氮(NO)生成实验评价新化合物的抗炎活性。结果 从马鞭草醋酸乙酯部位中分离得到8个生物碱类成分,分别为马鞭草碱A(verboffidine A,1)、5-羟基-2-吡啶甲酯(2)、6-羟甲基-3-羟基吡啶(3)、烟酸(4)、尿嘧啶苷(5)、腺苷(6)、苯乙胺(7)和吲哚-3-乙醇(8)。体外抗炎实验显示,化合物1具有抑制NO分泌作用,半数抑制浓度(median inhibition concentration,IC50)为38.5 μmol/L。结论 化合物1为新化合物,命名为马鞭草碱A(verboffidine A),并且具有潜在的抗炎活性;化合物2、3、7和8为首次从马鞭草中分离得到。
[Key word]
[Abstract]
Objective To investigate the chemical components of Verbena officinalis of the elthyl acetate fraction with anti-inflammatory activity. Methods The compounds were isolated, purified and identified by various chromatographic techniques and spectral methods. The anti-inflammatory activity of the new compound was evaluated by inhibiting the production of nitric oxide (NO). Results A total of eight alkaloids were isolated from the elthyl acetate fraction of V. officinalis, and their structures were identified as follows: verboffidine A (1), methyl-5-hydroxy-2-pyridinecarboxylate (2), 6-hydroxymethyl-3-pyridinol (3), nicotinic acid (4), uridine (5), adenosine (6), phenethylamine (7) and 2-(1H-indol-3-yl) ethanol (8). In vitro anti-inflammatory activity experiments showed that compound 1 could inhibit NO secretion with a median inhibition concentration (IC50) of 38.5 μmol/L. Conclusion Compound 1 was a new compound, named verboffidine A, and had potential anti-inflammatory activity. Compounds 2, 3, 7 and 8 were isolated for the first time from V. officinalis.
[中图分类号]
R284.1
[基金项目]
国家自然科学基金项目(82160660);江西省自然科学基金项目(20212ACB206006);江西中医药大学“1050”工程人才项目(5142001004);江西中医药大学创新团队(CXTD22015)