• 不 限
  • 期刊论文
  • 硕博论文
  • 会议论文
  • 报 纸
  • 英文论文
  2. 您的位置
  3. 首页
  4. 期刊论文
  5. A Novel Triterpenoid from Petasites tricholobus

A Novel Triterpenoid from Petasites tricholobus

来源 :中国化学快报（英文版） | 被引量 : 0次 | 上传用户：zhang3862066
【摘 要】
：
A novel triterpenoid, D:B-friedoursane-3α, 16α-dihydroxy-7α, 8α-epoxy-5(10)-ene,named petatrichol A, was isolated from the roots of Petasites tricholobus Fr
【作 者】
：
Wei Dong XIE Ping Lin LI Zhong 
【机 构】
：
Department of Chemistry
【出 处】
：
中国化学快报（英文版）
【发表日期】
：
2004年期
【关键词】
：
Petasites tricholobus Compositae triterpenoid petatrichol A 
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
A novel triterpenoid, D:B-friedoursane-3α, 16α-dihydroxy-7α, 8α-epoxy-5(10)-ene,named petatrichol A, was isolated from the roots of Petasites tricholobus Franch.. Its structure was elucidated by spectroscopic methods, especially 2DNMR techniques.
其他文献
Statistical Properties of a Blazar Sample and Comparison of HBLs, LBLs and FSRQs
Making use of the 2MASS Data Release, we have searched for nearinfrared (JHK) counterparts to 268 blazars from Donato et al. and obtained 238counterparts within
期刊
BL Lacertae objects: general-infrared: galaxies - methods: statistical
Energy Spectrum of Two-Component Bose-Einstein Condensates in Optical Lattices
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
期刊
energy spectrumphase transitionBoso-Einstein condensatesoptical lattice
Assembly of Ag(Ⅰ) Polymers with Thioether-S Binding and Homochiral Helices
A novel coordination polymer [Ag(pyta)]n (pyta- = 4-pyridylthioacetate) containing bound thioether sulfurs and single-stranded helical chains has been synthesiz
期刊
Synthesiscrystal structurecoordination polymer of silverhelix4-pyridylthioac
Flash Evaporation and Headspace Solid-phase Microextraction for the Analysis of the Essential Oils i
We have investigated the use of flash evaporation, headspace solid-phase microextraction (HS-SPME) and steam distillation (SD) as sample concentration and prepa
期刊
Headspace solid-phase microextractionflash evaporationessential oilsGC-MS
STUDY ON HOT SAND COOLING EQUIPMENT WITH DAMPING SAND CASCADE AND VERTICAL SPOUTED-FLUIDIZED BED
A new kind of hot sand cooling equipment with vertical spouted-fluidized bed is developed in this paper. It is similar to the traditional horizontal vibrating f
期刊
hot sand coolingfluidized bedfoundry equipment
计算平均力势的理论方法
提出了一个用于计算平均力势的普适性的理论框架,方法克服了以前的方法的缺陷,仅仅需要溶剂粒子在单个溶质粒子附近的密度分布作为输入.计算了两个大尺寸溶质粒子浸在小尺寸
期刊
平均力势密度泛函理论溶剂-溶质相互作用势Potential of mean forceDensity functional theorySolvent
Reactions between the (SO 4-) radical and some common anions in atmospheric aqueous droplets
The rate constants of reactions between the SO4·- radical and some common anions in atmospheric aqueous droplets e.g. Cl-,NO3-, HSO3- and HCO3- were determined
期刊
sulfate radicalcommon anionsatmospheric aqueous-phase chemistryradical chemis
HFSiS构型及其稳定性的理论研究
利用密度泛函理论对三线态HFSiS分子结构及其稳定性进行了详细的理论研究.在B3LYP/6-311G* *水平上计算出了各驻点的优化构型、振动频率,并对各个振动模式加以归属,在同样的
期刊
HFSiS三线态势能面异构化振动模式
Kinetic Adsorption of Cd onto Nanometer Al2O3/Carbon Fibre
A new nanometer material, nano-Al2O3 with carbon fibre as the carrier, was employed for the removal of Cd with low concentrations from polluted water. The chara
期刊
Nanometer Al2O3/carbonKinetic adsorptionCdPolluted water treatment
β-Lactam Templated Macrocyclization: Synthesis of 12-Membered Macrolide
A novel macrolactonization method was developed using a chiral β-lactam as the template. This novel method features that the macrocyclization is simultaneously
期刊
β-Lactammacrolactonizationmacrolidetemplated cyclization