【摘 要】
：
Three new flavonol glycosides were isolated from the leaves of Helicia nilagirica Beed.. The structures were elucidated as kaempferol-3-O-β-D-xylopyranosyl-(1
【机 构】
：
Shanghai Institute of Pharmaceutical Industry
论文部分内容阅读
Three new flavonol glycosides were isolated from the leaves of Helicia nilagirica Beed.. The structures were elucidated as kaempferol-3-O-β-D-xylopyranosyl-(1→6)-β-D-glyco- pyranosyl-(1→2)-α-L-rhamnopyranoside, quercetin-3-O-β-D-xylopyranosyl-(1→6)-β-D-glycopy- ranosyl-(1→2)-[-β-D-xylopyranosyl-(1→4)]-α-L-rhamnopyranoside, and quercetin-3-O-β-D- xylopyranosyl-(1→6)-α-D-glycopyranosyl-(1→2)-α-L-rhamnopyranoside, named as Helicianeoside A、B and C, respectively.
其他文献
Cycloaddition of carbon dioxide and propylene oxide to propylene carbonate catalyzed by tetra-tert-butyl metal phthalocyanine in the presence of tributylamine (
Fourier transform ion cyclotron resonance mass spectrometry (FT-ICR-MS) was used to determine the structures of anhydroicaritin glycosides by the MS/MS experime
In search of new anti-inflammatory and analgesic agents, (1H)-3,4-dihydro- pyrrolo [2,1-c][1,4]oxazin-1-one (3) and its acyl derivatives were designed and prepa
In this paper, some examples, such as iterated functional systems, scaling equation of wavelet transform,and invariant measure system, are used to show that the
The interacting boson model for anomalous rotational bands is proposed. In the rotational SU(3) limit,an asymptotic limit is discussed. Within the framework of
Phosphonate, phosphonothioate and phosphonoselenoate derivatives of AZT were synthesized in an expeditious way and high yields.
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
目的建立一种新的大脑皮层温度图像显示方法观察和分析大脑皮层的温度分布.方法 52只家猫在开颅后,用红外热像仪显示大脑皮层的温度图像,并用计算机提取和分析皮层各区温度数
A new random-walk interpolation scheme was developed to simulate solute transport through composite porous media with different porosities as well as different
We have successfully synthesized 1-(2(-phenyl)cyclopropyl-2,3-epoxypropan-1-ol 3, which will be applied to the kinetics study of oxiranylcarbinyl radical.