Two New Sesquiterpenes from Ligularia veitchiana

来源 :中国化学快报 | 被引量 : 0次 | 上传用户:langzi229229
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
A new furanoeremophilane and a new eudesmane were isolated from the roots of Ligularia veitchiana. Their structures were elucidated as 1β, 10β-epoxy-6β-isobutyryloxy-9-oxo-furanoeremophilane and 8α-hydroxy-4 (15), 11-eudesmadiene by spectroscopic methods.
其他文献
Three novel C2-symmetric macrocycles containing pyridyl units have been prepared by the cyclic condensation of chiral diamide intermediates with 2,6-pyridinedic
The probability of the last proton being out of the binding potential, P and the root-mean-square (rms) radius (1/2= of the third excited state in 21Na are calc
The Rabi oscillations in two-component Bose-Einstein condensates with a coupling drive are studiedby means of a pair of bosonic operators. The coupling drive an
The S-L (She and Leveque) scaling law, also named the hierarchical similarity theory, has been extensively tested for the turbulence made in the laboratory, but
We study Andreev tunneling through a ferromagnet/quantum-dot (QD)/superconductor system. By usingnonequilibrum Green function method, the averaged occupation of
Optically active trans-(1S,2S)-1-substituted-2-(N,N-dialkylamino)-1-indanol derivatives have been prepared and used in the asymmetric addition of diethylzinc to
A discrete spectral problem is discussed, and a hierarchy of integrable nonlinear lattice equations related tothis spectral problem is devised. The new integrab
From the seeds of medicinal plant Koelreuteria paniculata, a new pseudo sesquiter- penoid with novel skeleton namely paniculoid 1 was isolated. The structure of
Tumor marker CA15-3 was determined by using capillary electrophoretic enzyme immunoassay with electrochemical detection (CE-EIA-ED). The method can be used to d
In the motion vector field adaptive search technique (MVFAST) and the predictive motion vector field adaptive search technique (PMVFAST), the size of the larges