【摘要】 利用紫外-可见光谱的方法,对从中药黄芩中分离得到的3种黄芩有效成分的分子结构进行了研究。通过分析黄芩有效成分在甲醇溶液中及分别加入甲醇钠(NaOMe)、醋酸钠(NaOAc)、醋酸钠/硼酸(NaOAc/H3BO3)等5种诊断试剂后的紫外-可见光谱特征,讨论了利用紫外-可见吸收光谱推断黄酮类化合物母核结构及取代基位置的方法,为天然产物有效成分的结构鉴定提供了参考依据。更多还原

【Abstract】 The molecular structures of three active components from scutellaria baicalensis have been studied by ultraviolet-visible spectra.The index flavonoid structures and substituted positions were deduced by analyzing the UV-Vis spectra in the methanol solution of three active components and the methanol solution with 5 diagnostic reagents,NaOMe,NaOAc,NaOAc/H₃BO₃,AlCl₃,AlCl₃/HCl respectively,which provided strong evidences for the structural characterization of the active components from natural products.更多还原