[关键词]
[摘要]
目的 对广金钱草Desmodium styracifolium中的黄酮及黄酮苷类化学成分进行研究。方法 采用溶剂提取法、MCI HP20柱色谱、硅胶柱色谱、Sephadex LH-20凝胶柱色谱、ODS柱色谱、制备高效液相色谱等方法进行分离纯化,并利用现代波谱技术对化合物进行结构鉴定。结果 从广金钱草醇提取物醋酸乙酯和正丁醇部位中分离得到31个黄酮及黄酮苷类化合物,分别鉴定为5,7-二羟基-2'-甲氧基-3',4'-亚甲二氧基二氢异黄酮(1)、5,7-二羟基-2',4'-二甲氧基二氢异黄酮(2)、金圣草黄素(3)、异鼠李素(4)、红车轴草素(5)、parvisoflavanone(6)、3,3'-二甲氧基槲皮素(7)、5,7,3'-三羟基-4',5'-二甲氧基异黄酮(8)、5,7-二羟基-3',4'-二甲氧基黄酮(9)、eriocoumaronochromone(10)、染料木素(11)、苜蓿素(12)、3'-甲氧基大豆苷元(13)、5,7,2'-三羟基-4'-甲氧基二氢异黄酮(14)、山柰酚(15)、木犀草素(16)、大豆苷元(17)、7,3'-二羟基-4',5'-二甲氧基异黄酮(18)、spicatolignan B(19)、槲皮素(20)、香豌豆酚(21)、3-甲氧基山柰酚(22)、芹菜素(23)、二氢山柰酚(24)、dalbergiodin(25)、2'-羟基染料木素(26)、木犀草苷(27)、异荭草苷(28)、染料木素-7-O-β-D-呋喃芹糖基-(1→6)-O-β-D-吡喃葡萄糖苷(29)、异牡荆苷(30)、维采宁-2(31)。结论 化合物6~8 、10 、14 、18~19 为首次从广金钱草中分离得到,丰富了广金钱草黄酮类成分的结构类型。
[Key word]
[Abstract]
Objective To study the flavonoids and flavonoid glycosides of Desmodium styracifolium. Methods The chemical constituents were isolated and purified by solvent extraction, MCI HP20, silica gel, Sephadex LH-20, ODS and preparative high performance liquid chromatography. Their structures were identified by spectral data. Results Thirty-one flavonoids and flavonoid glycosides were isolated from the ethyl acetate and n-butanol parts of the ethanol extract of the whole plant of D. styracifolium and identified as 5,7-dihydroxy-2'-methoxy-3',4'-methylenedioxyisoflavanone (1), 5,7-dihydroxy-2',4'-dimethoxyisoflavanone (2), chrysoeriol (3), isorhamntin (4), pratensein (5), parvisoflavanone (6), 3,3'-dimethoxyquercetin (7), 5,7,3'-trihydroxy-4',5'-dimethoxyisoflavone (8), 5,7-dihydroxy-3',4'-dimethoxyflavone (9), eriocoumaronochromone (10), genistein (11), tricin (12), 3'-methoxydaidzein (13), ferreirin (14), kaempferol (15), luteolin (16), daidzein (17), 7,3'-dihydroxy-4',5'-dimethoxyisoflavone (18), spicatolignan B (19), quercetin (20), orobol (21), 3-methoxy kaempferol (22), apigenin (23), dihydrokaempferol (24), dalbergiodin (25), 2'-hydroxygenistein (26), luteolin 7-O-β-D-glucoside (27), isoorientin (28), ambocin (29), isovitexin (30), and vicenin II (31). Conclusion Compounds 6-8,10, 14, and 18-19 are isolated from D. styracifolium for the first time, which can enrich the structure types of flavonoids in D. styracifolium.
[中图分类号]
R284.1
[基金项目]
中国科学院科技服务网络计划(STS计划)区域重点项目A类(KFJ-STS-QYZD-2021-03-004);广西壮族自治区中医药管理局自筹经费课题(GXZYA20220003);广西中医药适宜技术开发与推广项目(GZSY22-03);广西药用植物保育人才小高地自主研究项目(GXYYXGD202203)