银杏
糖苷
萜烯
化学
银杏
立体化学
银杏
植物
生药学
生物活性
生物
生物化学
体外
作者
Ze-shi Sun,Shan Lin,Zhi-li Wu,Hongyuan Dong,Xi‐Ke Xu,Hui‐Liang Li,Jinxin WANG
标识
DOI:10.1016/s1875-5364(24)60588-1
摘要
Our continued works on the chemical constituents of Ginkgo biloba (G. biloba) leaves has led to the isolation of two novel phenylbutenoids (1, 2), along with five previously unidentified terpene glycosides (3–7). Among them, compounds 1 and 2 represent unique (Z)-phenylbutenoids, 3–6 are megastigmane glycosides, and 7 is identified as a rare bilobanone glycoside (Fig. 1). This study marks the first reported isolation of phenylbutenoid and bilobanone glycoside from G. biloba. The chemical structures of these compounds were elucidated through extensive spectroscopic analysis, including HR-ESI-MS and various 1D and 2D NMR experiments. Furthermore, the absolute configurations of these molecules were determined using Mosher's method, ECD experiments, and Cu-Kα X-ray crystallographic analyses.
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