[关键词]
[摘要]
目的 研究软枣猕猴桃Actinidia arguta果实的化学成分。方法 采用硅胶柱色谱、ODS柱色谱、SephadexLH-20柱色谱、制备薄层色谱和半制备型高效液相色谱等方法分离,根据波谱数据鉴定化合物结构。结果 从软枣猕猴桃75%工业乙醇冷浸提取物的正丁醇萃取物中共分得15个化合物,分别鉴定为(2R,6R,9R)-三羟基-大柱香波龙烷-4,7E-二烯-3-酮-9-O-β-D-吡喃葡萄糖苷(1)、(6S,9R)-玫瑰花苷(2)、槲皮素-3-O-β-D-半乳糖苷(3)、紫云英苷(4)、香草酸-4-O-β-D-吡喃葡萄糖苷(5)、1-O-feruloyl-β-D-glucopyranoside(6)、阿魏酸-4-O-β-D-吡喃葡萄糖苷(7)、红景天苷(8)、3-hydroxy-1-(4-O-β-D-glucopyranosyl-3-methoxyphenyl) propan-1-one(9)、5-O-咖啡酰基奎宁酸甲酯(10)、5-O-咖啡酰基奎宁酸丁酯(11)、5-O-阿魏酰基奎宁酸甲酯(12)、5-O-香豆酰基奎宁酸甲酯(13)、咖啡酸(14)和原儿茶酸(15)。结论 化合物1为1个未见文献报道的甲基环己烯型降倍半萜苷类化合物,命名为软枣猕猴桃苷A;化合物2、5和7~13为首次从猕猴桃属植物中分离得到;化合物6为首次从软枣猕猴桃中分离得到。
[Key word]
[Abstract]
Objective To study the chemical constituents in the fruits of Actinidia arguta. Methods The compounds were isolated by column chromatography on silica gel, ODS, and Sephadex LH-20, preparative TLC, and semi-preparative HPLC. The structures were established by the analyses of the spectroscopic data. Results Fifteen compounds were obtained from the n-BuOH fraction of the 75% ethanol extract of the fruits of A. arguta and identified as (2R,6R,9R)-trihydroxy-megastigmane-4,7E-dien-3-one-9-O-β-D-glucopyranoside (1), (6S,9R)-roseoside (2), quercetin-3-O-b-D-galactopyranside (3), astragalin (4), vanillic acid-4-O-β-D-glucopyranoside (5), 1-O-feruloyl-β-D-glucopyranoside (6), ferulic acid-4-O-β-D-glucopyranoside (7), rhodioloside (8), 3-hydroxy-1-(4-O-β-D-glucopyranosyl-3-methoxyphenyl) propan-1-one (9), 5-O-caffeoyl quinic acid methyl ester (10), 5-O-caffeoyl quinic acid butyl ester (11), 5-O-feruloyl quinic acid methyl ester (12), 5-O-coumaroyl quinic acid methyl ester (13), caffeic acid (14), and protocatechuic acid (15). Conclusion Compound 1 is a new norsesquiterpene glycoside with the megastigmane scaffold, named actinargutaside A. Compounds 2, 5, and 7-13 are isolated from the Actinidia genus for the first time and compound 6 is firstly isolated from A. arguta.
[中图分类号]
R284.1
[基金项目]