Two New Sesquiterpenes from Eupatorium lindleyanum

来源 :中国化学快报(英文版) | 被引量 : 0次 | 上传用户:btlovers
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
Two new germacrane sesquiterpenes: 3,8,14-trihydroxy-1(10)E,4Z, 11(13)-germacratrien-12, 6-olide, 8-(2-methyl-4-hydroxyl-2E-butenoyl), 3,14-diacetoxy (eupalinolide A, 1), and 3,8,14trihydroxy-1(10) E, 4E, 11(13)-germacratrien-12,6-olide, 8-2-methyl-4-hydroxyl-2Ebutenoyl), 3,14-diacetoxy (eupalinolide B, 2) were isolated from Eupatorium lindleyanum. Their structures were elucidated by means of 1H and 13C NMR spectroscopic analysis, including 2D NMR technique.
其他文献
In this paper, we extend the mapping transformation method through introducing variable coefficients.By means of the extended mapping transformation method, man
The effect of pH value on the kinds and number of Glucomannan hydrogen bonds was studied by experiments and molecular dynamics simulation, and that of the pH ch
AIM: In patients with liver cirrhosis, hypoalbuminemia causes edema and ascites, and a reduction in the quality of life. Since musculature is catabolized to sup
The complex [Cu(C5H7O2)(C5H8N2)3]Br. C2H5OH was obtained from a reaction of CuBr, acac, and Hdmpz (Hdmpz = 3, 5-dimethylpyrazole) in a mixed solution of ethanol
本文通过对荣华二采区10
Synthesis of tetrahydrofuran and tetrahydropyran derivatives catalyzed by tungstophosphoric acid (H3PW12O4o) were conveniently performed with high yield from th
We present a stochastic critical slope sandpile model, where the amount of grains that fall in an overturning event is stochastic variable. The model is local,
We present an F-expansion method for finding periodic wave solutions of nonlinear evolution equations in mathematical physics, which can be thought of as a conc
A 4, 4'-bipyridine bridging dumbbell-like dimeric pentamolybdate [4, 4'-H2bipy]3[4,4'-Hbipy]2[(Mo5O17)2(4,4'-bipy)] has been synthesized by hydrothermal synthes
The asymmetric synthesis of (-)-(4R, 5R)-4-[5-(benzo[1, 3]dioxol-5-yl)-4-hydroxyl-1-epoxidation procedure as key step was described.