Wang Guo-cai, Wang Ying, Zhang Xiao-qi, Li Yao-lan, Yao Xin-sheng, Ye Wen-cai
Institute of Traditional Chinese Medicine and Natural Products, Jinan University, Guangzhou 510632,P. R. China.
Chem Pharm Bull (Tokyo). 2010 Mar;58(3):390-3. doi: 10.1248/cpb.58.390.
Six new Securinega alkaloids (1, 3, 5, 7, 9, 10) together with four known ones were isolated from the twigs and leaves of Flueggea leucopyra. The structures of new compounds were established on the basis of the spectroscopic methods including UV, IR, HR-electrospray ionization (ESI)-MS, 1D and 2D NMR, and the absolute configurations of these new alkaloids were assigned by the modified Mosher's method and the circular dichroism (CD) spectra.
从白雀珊瑚的嫩枝和叶子中分离出6种新的一叶萩生物碱（1、3、5、7、9、10）以及4种已知生物碱。通过紫外光谱（UV）、红外光谱（IR）、高分辨电喷雾电离质谱（HR - ESI - MS）、一维和二维核磁共振等光谱方法确定了新化合物的结构，并通过改良的莫舍尔法和圆二色光谱（CD）确定了这些新生物碱的绝对构型。
