中草药2026,Vol.57Issue(1):39-44,6.DOI:10.7501/j.issn.0253-2670.2026.01.005
三七花中1个新异香豆素
A new isocoumarin isolated from flower buds of Panax notoginseng
摘要
Abstract
Objective To study the non-saponin chemical constituents of the flower buds of Panax notoginseng and evaluate their antioxidant and anti-inflammatory activities.Methods The extraction was performed by refluxing with 65%aqueous ethanol,followed by successive liquid-liquid extraction with petroleum ether,ethyl acetate(EtOAc)and n-butanol.The compounds were isolated and purified using RP-18,silica gel,MCI gel CHP20P,Sephadex LH-20 column chromatography and semi-preparative liquid chromatography.Structural identification was carried out by comprehensive analysis of nuclear magnetic resonance(NMR)spectroscopy,high-resolution mass spectrometry(HR-MS),ultraviolet(UV)spectroscopy,and computational electronic circular dichroism(ECD)spectroscopy.Some purified compounds were evaluated for preliminary antioxidant activity and anti-inflammatory activity.Results A total of seven non-saponin components were isolated from the EtOAc fraction of P.notoginseng flower buds,including one isocoumarin(1),four simple phenols(2-5),and two loliolides(6,7),were obtained from the EtOAc fraction.These were identified as isocoumarin F1(1),ferulic acid(2),evofolin A(3),p-hydroxybenzoic acid(4),4-hydroxybenzaldehyde(5),(+)-epiloliolide(6),and(-)-loliolide(7),respectively.Conclusion All compounds(1-7)were isolated from P.notoginseng for the first time.Of which,compound 1 is a new isocoumarin and named isocoumarin F1,while compound 2 exhibited obvious DPPH radical scavenging ability.关键词
三七花/异香豆素类/简单酚类/抗氧化/抗炎/异香豆素F1/阿魏酸/4-羟基苯甲醛/黑麦草内酯Key words
flower buds of Panax notoginseng/isocoumarin/phenolics/antioxidant activity/anti-inflammatory/isocoumarin F1/ferulic acid/4-hydroxybenzaldehyde/(-)-loliolide分类
医药卫生引用本文复制引用
YANG Ping,WANG Xinxin,SHANG Jiahuan,ZHU Hongtao,ZHAO Ping,ZHU Guolei,ZHANG Yingjun..三七花中1个新异香豆素[J].中草药,2026,57(1):39-44,6.基金项目
云南省科技厅重点研发计划(202203AC100008) (202203AC100008)
植物化学与西部植物资源持续利用国家重点实验室课题(P2022-KF15) (P2022-KF15)