Two New Diterpene Acetylxylosides From Aster Veitchianus

来源 :中国化学快报 | 被引量 : 0次 | 上传用户：dududi

【摘要】

：

Two new acetylxylosides, ent-manool-13-O-β-D-2'-acetylxylopyranoside(1)and ent-manool-13-O-β-D-2',4'-diacetylxylopyranoside(2)were isolated from Aster veitchi

【作者】

：

Er Wei LI Kun GAO Zhong Jian J

【机构】

：

College of Chemistry and Chemical Engineering

【出处】

：

中国化学快报

【发表日期】

：

2004年期

【关键词】

：

Aster veitchianus Compositae diterpene xylosides

下载到本地 , 更方便阅读

下载此文赞助VIP

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

Two new acetylxylosides, ent-manool-13-O-β-D-2'-acetylxylopyranoside(1)and ent-manool-13-O-β-D-2',4'-diacetylxylopyranoside(2)were isolated from Aster veitchianus.Their structures were elucidated by spectroscopic methods.

其他文献

STRUCTURAL ANALYSIS OF PEKEKK(T/I) USING WAXD, IMAGING PLATES AND SAXS

Structures and crystal form transition of the novel aryl ether ketone polymer containing meta-phenylene linkage:PEKEKK(T/I) were investigated by wide angle X-ra

期刊

PEKEKKWAXDImaging platesSAXSStructural analysis

SYNTHESIS AND CHARACTERIZATION OF NANO METALS WITH CORE-SHELL STRUCTURE

Using AUcore-Ptshell as an example, the synthesis and characterization of nano metals with core-shell structure is demonstrated in a systematic study on the amo

期刊

nanoparticlebimetallicgoldcore-shell

Synthesis and Crystal Structure of an Ion-Pair Compound:[HL]2[Ni(CN)4] 4H2O(L=4-(2-Hydroxyphenyl)-1,

An ion-pair compound,[HL]2[Ni(CN)4]·4H2O 1 has been obtained as an unexpected product when we attempt to prepare a heterometallic cyano-bridged complex by the

期刊

tetracyanonickelate anionmacrocyclic triamine cationcrystal structure

Preparation of polysaccharides in different molecular weights from Ulva pertusa Kjellm (Chorophyta)

As molecular weight controls the biological activities of polysaccharides, screening the optimal molecular weight of polysaccharides is important in drug resear

期刊

Ulva pertusapolysaccharideshydrogen peroxidecontrollable degradationmolecula

VARIATION OF SUBSTRUCTURES OF PEARLITIC HEAT RESISTANT STEEL AFTER HIGH TEMPERATURE AGING

The observations of dislocations, substructures and other microstructural details were conducted mainly by means of transmission electron microscope (TEM) and

期刊

pearlitic heat-resistant steelagingrecoverydislocationsub-structuredislocat

TESTING FOR VARYING DISPERSION OF LONGITUDINAL BINOMIAL DATA IN NONLINEAR LOGISTIC MODELS WITH RANDO

In this paper, it is discussed that two tests for varying dispersion of binomial data in the framework of nonlinear logistic models with random effects, which a

期刊

Longitudinal binomial datalogistic regressionnonlinear modelspower cal-culati

Synthesis and crystal Structure of 2[1-(1,1-dimethylethyl)-5-methyl-1-H-pyrazol-4-ylcarbonyl]-N-Phen

The crystal structure of 2[1-(1,1-dimethylethyl)-5-methyl-1-H-pyrazol-4-ylcar-bonyl]-N-phenyldrazinecarbothioamide ([C16H21N5OS]·CH3COCH3,C19H27N5O2S,Mr=389.52

期刊

hydrazinecarbothioamidepyrazolecrystal structuresynthesis

Synthesis of a Novel Conjugate of Dibenzoyldiazomethane and Polyamide Containing N-Methylimidazoles

A novel conjugate of dibenzoyldiazomethane and polyamide containing N-methylimida-zoles was synthesized by a chloroform reaction and a DCC/HOBT coupling reactio

期刊

Dibenzoyldiazomethanepolyamidechloroform reaction

Knotted Picture of Degree of Entanglement of Quantum Pure State of Two Nodes |x〉= α|↑↓+β|↓↑〉

From the knotted pictures this article gives a possible quantitative measure of the degree of entanglement.We suggest to use the area ratio to measure the degre

期刊

two-component unoriented linkquantum pure state for two bodiespartial entropy

A New Dual-electrode and Multi-channel Electrochemical DetectionSystem for Capillary Electrophoresis

A new type of dual-electrode and multi-channel electrochemical detection technology for capillary electrophoresis is described in this paper. Two detectors(the

期刊

Capillary electrophoresisdual-electrodemulti-channel electrochemical detection

Two New Diterpene Acetylxylosides From Aster Veitchianus

与本文相关的学术论文