[关键词]
[摘要]
目的 研究宽筋藤(中华青牛胆Tinospora sinensis藤茎)的化学成分。方法 利用硅胶、Sephadex LH-20等柱色谱和半制备HPLC等进行分离和纯化,根据波谱数据和理化性质对化合物的结构进行鉴定。结果 从宽筋藤的正丁醇萃取部位中分离得到16个化合物,分别鉴定为紫丁香苷(1)、corchoionosideC(2)、3,4-二甲氧基苯基-β-D-吡喃葡萄糖苷(3)、肉桂醇-O-β-D-吡喃葡萄糖苷(4)、3,4,5-三甲氧基苯酚-β-D-吡喃葡萄糖苷(5)、benzyl-β-D-glucopyranoside(6)、丁香酸(7)、3,5-二甲氧基苯甲酸-4-O-β-D-葡萄糖苷(8)、1,4-dihydroxymethyl-2,5-dimethoxybenzene(9)、1-[2-(furan-2-yl)-2-oxoethyl]pyrrolidin-2-one(10)、cordysinin B(11)、lyciumide A(12)、酪氨酸(13)、环(亮氨酸-异亮氨酸)(14)、表丁香树脂醇(15)、(+)-syringaresinol-4'-O-β-D-glucopyranoside(16)。结论 化合物2、9~14均为首次从青牛胆属植物中分离得到。
[Key word]
[Abstract]
Objective To study the chemical constituents from n-butanol parts of Tinosporae Caulis. Methods The compounds were isolated and purified by silica gel column chromatography, Sephadex LH-20 and semi-HPLC. The structures were identified by spectroscopic methods and physicochemical properties. Results Sixteen compounds were isolated and identified from the n-butanol parts of Tinosporae Caulis as syringin (1), corchoionoside C (2), 3,4-dimethoxyphenyl-β-D-glucopyranoside (3), cinnamol-O-β-D-glucopyranoside (4), 3,4,5-trimethoxylphenol-β-D-glucopyranoside (5), benzyl-β-D-glucopyranoside (6), syringic acid (7), 3,5-dimethoxybenzoic acid-4-O-β-D-glucoside (8), 1,4-dihydroxymethyl-2,5-dimethoxy benzene (9), 1-[2-(furan-2-yl)-2-oxoethyl] pyrrolidin-2-one (10), cordysinin B (11), lyciumide A (12), tyrosine (13), cyclo-(Leu-Ile) (14), (-)-episyringaresinol (15), and (+)-syringaresinol-4'-O-β-D-glucopyranoside (16). Conclusion Compounds 2 and 9-14 are isolated from Tinospora genus for the first time.
[中图分类号]
R284.1
[基金项目]
国家自然科学基金资助项目(81660713);江西省科技厅计划项目(20165BCB18006);江西省科技厅计划项目(20172BCB22010)