摘要
目的:研究红绒毛羊蹄甲Bauhinia aurea的化学成分。方法:应用各种色谱技术进行分离纯化,用MS和NMR分析确定化合物结构。结果:从红绒毛羊蹄甲90%乙醇提取物的醋酸乙酯萃取部位中分离得到8个化合物,分别鉴定为异黄杞苷(1)、落新妇苷(2)、新落新妇苷(3)、异落新妇苷(4)、新异落新妇苷(5)、(2R,3S)-儿茶精6)、(2R,3R)-表儿茶精(7)和(2R,3R)-3-O-没食子酰表儿茶精(8)。结论:除化合物2,6和8外,其余5个化合物均属首次从该属植物中发现。
Objective: To study the chemical constituents ofBauhinia aurea. Method: The compounds were isolated by column chromatography over silica gel, reversed-phase RP-18, and Sephadex LH -20. MS and NMR spectroscopic methods were used to determine structures of purified compounds. Result: Eight compounds were isolated from the ethyl acetate soluble fraction of the ethanolic extract and their structures were elucidated as isoengeletin (1), astilbin (2), neoastilbin (3), isoastilbin (4), neoisoastilbin (5), ( + )-catechin (6), ( - )-epicatechin (7) and ( - )-epicatechin 3-O-gallate (8). Conclusion: Five compounds were isolated from this genus for the first time except for 2, 6 and 8.
出处
《中国中药杂志》
CAS
CSCD
北大核心
2007年第9期815-818,共4页
China Journal of Chinese Materia Medica
基金
国家自然科学基金项目(20432030)
新世纪优秀人才支持计划(NCET)