A NEW TRITERPENE SAPONIN FROM THE STEMS AND LEAVES OF PANAX GINSENG

来源 :Chinese Chemical Letters | 被引量 : 0次 | 上传用户:gx7411
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 triterpene compound was isolated from the stems and leaves of Panax ginseng C. A. Meyer and established as 3β, 6α, 12β-trihydroxy-dammar-20(21), 24-diene-6-0-α-L-rhamnopyranosyl-(1→2)-β-D-glucopyranoside on the basis of spectral analysis and chemica
其他文献
A precursor 12 of sinulariol-D,sinularial-A and sinularic acid-A(marinecembranoids)was prepared from geraniol through nine steps
In this paper, we propose the use of the molar absorbance/potential ratio to measure quantitatively the sensitivity of response signalof SEC cell and the system
<正> 山东太阳纸业股份有限公司根据市场需求,调整产品结构,投资近3亿元人民币建成年产5万t机内涂布轻量铜版纸生产线,于今年10月份在中国制浆造纸工业研究所的大力配合下,一
Benzylsulfonamide was used as a source of nitrogen in the syn-thesis of azacrown ethers,and the cyclic intermediates were easily deben-zylsulfonylated by treati
目的分析珠海市区儿童全血微量元素含量,了解本地区儿童健康状况,指导儿童合理膳食,及时补充儿童生长发育所需微量元素,预防相关疾病的发生。方法随机抽取2011年7月—2012年6
Normal Haman Spectra(NRS) of solid PMT (1-phenyl-5-mercaptotetrazole) and MBT (2-mercaptobenzothiazole) and their surface enhanced Raman spectra (SERS) adsorbed
毁损肺是指一侧肺有广泛的不可逆的病灶,且其功能完全丧失的良性病变。其原因分先天和后天2种。临床上常见的有狭窄性支气管内膜结核、支气管扩张症、广泛肺纤维化、多发肺囊
目的 探讨健康教育在结核病人治疗中的作用。方法 2007年1月至2010年1月门诊或住院结核病患者198例,随机分为健康教育组100例,常规护理组98例观察2组观察项目知晓率。结果
The azeotrope disappeared when the formic acid-water mixtureswere treated by membrane distillation. Membrane distillation were used forseparation of formic acid
The complex K<sub>3</sub>H<sub>4</sub>GeW<sub>9</sub>V<sub>3</sub>O<sub>40</sub>&#183;8H<sub>2</sub>O crystallized in a monocliinie system with space group P2,