纤细马蓝中的六种新的8,14-断孕甾烷糖苷——纤细马蓝苷A-F
Gracillosides A-F, six new 8,14-seco-pregnane glycosides from Adelostemma gracillimum.
作者信息
Gao Zhu-Lin, He Hong-Ping, Di Ying-Tong, Fang Xin, Li Chun-Shun, Liu Hai-Yang, Zhou Qian-Lan, Mu Quan-Zhang, Hao Xiao-Jiang
机构信息
State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650204, Yunnan, PR China.
出版信息
Steroids. 2009 Aug;74(8):694-700. doi: 10.1016/j.steroids.2009.03.001. Epub 2009 Mar 14.
Six new 8,14-seco-pregnane glycosides, gracillosides A-F (1-6), were isolated from the roots of Adelostemma gracillimum (Asclepiadaceae). All of them had the same aglycone as gracigenin with a rare 8,14-seco-pregnane type skeleton in nature and possessed an oligosaccharide chain consisting of four to six sugar units at C-3 of the aglycone. Their structures were determined on the basis of detailed spectroscopic analysis and chemical evidence.
从纤枝吊灯花（萝摩科）的根中分离出6个新的8,14-断孕甾烷糖苷，即纤枝苷A-F（1-6）。它们都具有与纤枝苷元相同的苷元，在自然界中具有罕见的8,14-断孕甾烷型骨架，并且在苷元的C-3位具有由四到六个糖单元组成的寡糖链。它们的结构是基于详细的光谱分析和化学证据确定的。
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