【摘要】 采用1H、13C、DEPT(无畸变极化转移增益法)、1H-1H COSY(氢-氢化学位移相关谱)、1H-1HTCOSY(氢-氢化学位移全相关谱)、HSQC(异核单量子相关谱)、HMBC(异核多键相关谱)等多种NMR分析方法,首次对毛冬青三萜皂甙Ilexsaponin B3的1H和13C NMR信号进行了全归属,特别是应用1H-1H COSY和1H-1HTCOSY相结合的分析方法,对该化合物中氢谱信号严重重叠的糖部分进行了详细的分析,提出了一套对三萜皂甙糖部分信号进行全归属的核磁共振法。更多还原

【Abstract】 The signals of 1H and 13C NMR of the sugar moieties of Ilexsaponin B3 were fully assigned for the first time using the 1D NMR and 2D NMR techniques(1H,13C,DEPT,COSY,TCOSY,HSQC,HMBC).By applying the combined techniques of 1H-1H COSY and 1H-1H TCOSY,the overlapped 1H NMR signal of the sugar was analyzed in detail and a way to assign the NMR signal of the sugar of triterpene saponin completely was established.更多还原