白射干的化学成分研究

Chemical constituents of Iris dichotoma

目的：研究白射干根茎的化学成分。方法：采用各种柱色谱法分离,通过理化鉴别及波谱分析技术鉴定化合物的结构。结果：从白射干根茎中分离得到了11个化合物,分别鉴定为粗毛豚草素（hispidulin,1）,鼠李柠檬素素（rhamnocitrin,2）,鸢尾甲黄素A（iristectorigenin A,3）,4′,5,7,8-四羟基-6-甲氧基异黄酮（4′,5,7,8-tetrahydroxy-6-methoxy isoflavone,4）,6-羟基鹰嘴豆素A（6-hydroxybiochanin A,5）,鸢尾甲苷B（Iristectorin B,6）,鸢尾甲黄素A（Iristectorigenin A,7）,山柰酚-7-甲醚（Kaempferol-7-methyl ether,8）,怪柳黄素-7-葡萄糖苷（Tamarixetin-7-glucoside,9）,鸢尾甲苷A（Iristectorin A,10）,3′,3,5-三羟基-4′,7-二甲氧基黄酮-3-O-β-D-半乳糖苷（3′,3,5-trihydroxy-4′,7-dimethoxy-flavone-3-O-β-D-galacto pyranoside,11）。结论：化合物1~11均是首次从该植物中分离得到。

Objective： To study the chemical constituents in the rhizoma of Iris dichotoma.Method： The chemical constituents were isolated by various column chromatographic methods.The structures of the compounds were elucidated on the basis of physiochemical properties and spectral analysis.Result： Eleven compounds,hispidulin（1）,rhamnocitrin（2）,iristectorigenin A（3）,4′,5,7,8-tetrahydroxy-6-methoxy isoflavone（4）,6-hydroxybiochanin A（5）,iristectorin B（6）,iristectorigenin A（7）,kaempferol-7-methyl ether（8）,tamarixetin-7-glucoside（9）,iristectorin A（10）,3′,3,5-trihydroxy-4′,7-dimethoxy-flavone-3-O-β-D-galactopyranoside（11） were isolated and identified.Conclusion： Compounds 1-11 were obtained from this plant for the first time.