目的 研究新疆紫草Arnebia euchroma的化学成分。方法 运用硅胶柱色谱、MCI凝胶柱色谱、Sephadex LH-20柱色谱及制备型HPLC等方法进行分离纯化，通过核磁共振、质谱等波谱学方法并结合文献对分离得到的化合物进行结构鉴定。结果 从该植物干燥根的75%乙醇提取物中分离纯化得到3个化合物，分别鉴定为2-（2'-烯基-4'-羟基-环己酮-3'-基）-4-（1''-羟基-4''-甲基-3''-戊烯-1''-基）呋喃（1）、arnebinol A（2）和arnebinol C（3）。结论 化合物1为新的紫草呋喃类化合物，命名为紫草呋喃萜酮A。

Objective To study the chemical constituents from the roots of Arnebia euchroma. Methods The chemical constituents were isolated and purified by silica gel, MCI gel, Sephadex LH-20 column chromatography and preparative HPLC. The structures of the isolated compounds were identified by NMR and MS spectroscopic methods. Results Three compounds (1-3) were isolated from the 75% ethanol extract of A. euchroma, and identified as 2-(2'-ene-4'-hydroxy-cyclohexanone-3'-)-4- (1''-hydroxy-4''-methyl-3''-pentene-1''-) furan (1), arnebinol A (2) and arnebinol C (3). Conclusion Compound 1 is a new shikonofuran compound named shikonofuranone A.

R284.1

北京市自然科学基金面上项目（7212165）