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目的:研究金铁锁根的化学成分。方法:采用硅胶柱色谱、凝胶柱色谱和反相色谱分离纯化,利用ESI-MS,EI-MS,NMR确定化合物结构。结果:分离并鉴定了3个化合物,分别为3-O-β-D-galactopyranosyl-(1→2)-[β-D-xylopyranosyl-(1→3)]-β-D-6-O-methylglucuronopyranosyl-gypsogenin(1),2α-hydroxy-ursolic acid(2),tormentic acid(3)。结论:化合物1为新化合物,化合物2、3均为首次从该属植物中分离得到。
Objective: To study the chemical composition of the golden iron lock root. Methods: The compounds were isolated and purified by silica gel column chromatography, column chromatography and reversed phase chromatography. Their structures were determined by ESI-MS, EI-MS and NMR. Results: Three compounds were isolated and identified, namely 3-O-β-D-galactopyranosyl-(1→2)-[β-D-xylopyranosyl-(1→3)]-β-D-6-O- Methylglucuronopyranosyl-gypsogenin (1), 2α-hydroxy-ursolic acid (2), tormentic acid (3). Conclusion: Compound 1 is a new compound, and compounds 2 and 3 are isolated from this genus for the first time.