Zhang Jia-Hui, Cao Mingming, Zhang Yu, Li Xiao-Hui, Gu Yu-Cheng, Li Xiao-Nian, Di Ying-Tong, Hao Xiao-Jiang
State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences Kunming 650201 China
Research Unit of Chemical Biology of Natural Anti-Virus Products, Chinese Academy of Medical Sciences Beijing 100730 China.
RSC Adv. 2022 Oct 3;12(43):28147-28151. doi: 10.1039/d2ra05342j. eCollection 2022 Sep 28.
Investigation of the alkaloids from leads to the isolation of myrionsumamide A (1), a pair of enantiomeric alkaloids with an unprecedented tetracyclic system skeleton. These two alkaloids were separated by chiral HPLC with a ratio of 3 : 5 from the scalemic mixture. Their structures including absolute configurations were determined by NMR spectroscopy, X-ray diffraction data and ECD calculations. Both (+)-1 and (-)-1 showed antibacterial activity against with MIC at 7.81 μg ml.
对[植物名称]生物碱的研究导致了myrionsumamide A(1)的分离,这是一对具有前所未有的四环体系骨架的对映体生物碱。这两种生物碱通过手性高效液相色谱从非对映体混合物中以3:5的比例分离出来。它们的结构包括绝对构型通过核磁共振光谱、X射线衍射数据和电子圆二色性计算确定。(+)-1和(-)-1对[细菌名称]均显示出抗菌活性,最低抑菌浓度为7.81μg/ml。