Chemical Constituents of Schisandra rubriflora Rehd.et Wils.

来源 :植物学报 | 被引量 : 0次 | 上传用户:manstation
下载到本地 , 更方便阅读
声明 : 本文档内容版权归属内容提供方 , 如果您对本文有版权争议 , 可与客服联系进行内容授权或下架
论文部分内容阅读
Schisandra rubriflora Rehd. et Wils. is a traditional Chinese medicine. To search for new and bioactive components from traditional Chinese medicines and provide scientific evidence for taxonomy, the chemical constituents ofthe plant were investigated by various column chromatography methods (silica gel,Sephadex LH-20, and RP-18). From the aerial parts ofS. rubriflora, three new megastigmane glycosides,namely (3S, 5R, 6S, 9R)-megastigmane-3, 9-diol 3-O-[α-L-arabionfuranosyl-(1→6)-β-D-glucopyranoside](1), 7-megastigmene-3-ol-9-one 3-O-[o-L-arabionfuranosyl-(1→6)-β-D-glucopyranoside] (2), and megastigmane-3α, 4β, 9ξ-triol 3-O-β-D-glucopyranoside (3), along with 14 known compounds, were isolated.The structures of the new compounds were elucidated by a combination of spectroscopic and chemical methods.
其他文献
结合某油污染地下水回用处理工程实例,介绍了含油污水回用处理工艺流程和主要装置;分析了该工艺的水处理成本,指出了降低成本的主要途径;同时分析了装置的运行效果,由于进水
对TiO2半导体材料进行改性,分别通过溶胶凝胶、超声波分散和溶液沸腾的方法合成了Er3+:YAlO3/Fe掺杂TiO2复合物光催化剂,并且采用XRD和SEM进行表征,研究了各种因素在太阳光照
分别选用火电厂粉尘、500目滑石粉和1250目滑石粉3种尘源,对袋式除尘器用滤料的阻力、平均过滤周期和过滤效率等动态除尘性能指标进行了测试.通过对大量实验数据的统计分析得
采用密度泛函方法(DFT/B3LYP),在6-31+G水平上分别优化茜素以及AcO-阴离子复合物的几何构型.从几何结构参数、电荷布居和前线轨道能量等方面探讨了复合物形成过程中主体分子
刀具状态监测的目的是为了开发出实用的刀具状态监测设备,为了降低设备成本和提高监测的准确率,在监测信号的选择和特征提取的基础上,选择合适的模式识别方法至关重要。对近
目的:观察模拟微重力条件下体外转化生长因子β1(transforming growth factor-β1,TGF-β1)诱导骨髓间充质干细胞(bone marrow mesenchymal stem cells,BMMSCs)向髓核样细胞
By ESR spin elimination and photodeavage assay, the mechanisms of one-electron oxidation damage of oligonucleotides by excited triplet state of riboflavin (Rb)
针对纸纱复合制袋机存在可靠性欠佳、自动化水平不高等问题,提出了一种新型纸纱复合制袋机自动控制系统.该控制系统分别以欧姆龙CP1H PLC和3G3MV变频器为控制核心、以人机界
分析了清代湖南农产品商品化的发展,指出了清代湖南社会经济发展的困境.
Calmodulin (CaM) and calmodulin-like protein (CaLP) are two proteins involved in biomineralization. Their localizations in Pinct-ada fucata mantle epithelia wer