State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650204, Yunnan, PR China.
Org Lett. 2011 Aug 5;13(15):3848-51. doi: 10.1021/ol201366d. Epub 2011 Jun 29.
Schicagenins A-C (1-3), three unprecedented nortriterpenoids characterized with a tetracyclic oxa-cage motif and C(9) side chain, were discovered from the leaves and stems of Schisandra chinensis. Their structures were determined on the basis of extensive spectroscopic analysis, and the absolute stereochemistries were established by single-crystal X-ray diffraction and CD experiments. A plausible biosynthetic pathway of 1-3 was also discussed.
五味子甲素 A-C（1-3），三个前所未有的四环氧化笼型母核和 C（9）侧链特征的三萜类化合物，从五味子的叶子和茎中分离得到。根据广泛的光谱分析确定了它们的结构，通过单晶 X 射线衍射和 CD 实验确定了它们的绝对立体化学构型。还讨论了 1-3 的可能生物合成途径。
