A New Diterpenoid Dimer from Annona glabra

来源 :中国化学快报 | 被引量 : 0次 | 上传用户:ALF123456
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
Anew diterpenoid dimer annonebinide A has been isolated from the stems ofAnnona glabra. Its structure was determined to be ent-16α-hydroxykauran-17-yl ent- 16β-kauran- 17-oate on the basis ofspectroscopic and chemical evidence.
其他文献
Ionic partition equilibrium on a charged membrane immersed in a mixed electrolyte solution was systematically investigated and several models were established f
The effect of the functionallization of POMs on their properties was examined by the comparison between both titanium and its corresponding cyclopentadienyl sub
In order to use DNA for making molecular device, specific DNA patterns on a solid surface should be constructed. In this paper, we will show that the random int
The microkinetics of H2S removal by ZnO desulfurization in H2O-CO2-N2, H2O-CO-N2 andH2O-O2-N2 gas mixtures was studied by thermogravimetric analysis. Experiment
The title compound (PhNHNH)2C=O(CH3CN has been prepared and characterized by elemental analysis and IR spectrum studies. The single-crystal X-ray structure dete
An easy preparation of controlled alumina nanoparticles by the solution precipitate method has been carried out using dendrimer as surfactant. The effects of th
A simple and efficient procedure for synthesis of 1-hydroxymcthylene-1,1-bisphosphoates from aldehydes is deseribed. This method was applied to the synthesis of
Concentrations and spatial distributions of organic carbon (OC) and elemental carbon (EC) in atmospheric particles were measured at 8 sites in four cities (Hong
Let A be a unital C*-algebra, n ∈ N ∪ {∞}. It is proved that the isomorphism △n :Un0(A)/DUn0(A) → AffT(A)/△n0(π1(Un0(A))) is isometric for some suitable
The title compound (C28H21ClN2O, Mr = 436.92) was synthesized by the cross- photodimerization of (E)-2-(2-phenylethenyl)benzoxazole and (E)-4-[2-(4-chlorophenyl