【摘 要】
：
The aerial parts of Siegesbeckia have been used as the traditional Chinese medicine in the treatment of rheumatic arthritis, hypertension, malaria, neurasthenia
【机 构】
：
Shanghai Research Center for Modernization of Traditional Chinese Medicine,School of Pharmacy
论文部分内容阅读
The aerial parts of Siegesbeckia have been used as the traditional Chinese medicine in the treatment of rheumatic arthritis, hypertension, malaria, neurasthenia, and snakebite. In order to find new and bioactive compounds, the chemical constituents of the aerial parts of S. orientalis L. were investigated and two new compounds, namely β-D-glucopyranosyl-ent-2-oxo-15,16-dihydroxy-pimar-8(14)-en-19-oic-late (compound 1 ) and [1 (10) E,4Z]-8β-angeloyloxy-9α-methoxy-6α,15-dihydroxy-14-oxogermacra-1 (10),4,11 (13)-trien-12-oic acid 12,6-lactone (compound 2), as well as five known ent-pimarane diterpenes (compounds 3-7) were isolated. The structures of the two new compounds were identified by their physicochemical properties and spectral analysis, particularly one- and two-dimensional nuclear magnetic resonance spectral methods.
其他文献
Low density polyethylene film surface-grafted phenolic resole was prepared by a sequential processes. Firstly, acrylic acid was grafted to the surface of low de
Synthesis and characterization of two novel potentially tetradentate chelating OΛNΛC ligands: 2-(2-hydroxyphenyl)-6-p-tolylisonicotinic acid and 2-(2-hydroxyp
A novel two-dimensional nanopatterned TiO2 thin film has been synthesized through the interaction between cationic Gemini surfactant molecules and the prepared
The mass spectrometric fragmentation of 1-(benzyloxycarbonyl)amino-2-alkyl/cycloalkyl thioacetates has been studied with the aid of mass-analysed ion kinetic en
The thermodynamic Bethe ansatz equations and free energy for 1D N-component Bariev model under open boundary conditions are derived based on the string hypothes
为探究吕家坨井田地质构造格局,根据钻孔勘探资料,采用分形理论和趋势面分析方法,研究了井田7
We obtain the multisolitary solutions of the extended Bose-Hubbard model which describes dipolar BoseEinstein condensates in optical lattices under time-depende
A new series of compounds, 2-(benzodioxol-2-yl)acetic acids, have been synthesized. Their structures were confirmed by MS and 1H-NMR. The preliminary pharmacolo
Preparation method of photocatalyst, using TiCl4 and SnCl2 as raw material and photocatalytic activity of nano-scaled core-shell Sn2+-doped titania photocatalys
We propose a general method of determining the distribution of topological defects on axisymmetric surface,and study the distribution of topological defects on