手性碳原子

确定了手性碳原子的构型，还必须确定两个芳环间的构型和构象。

The configuration and conformation between the two aromatic rings need to be determined after the configuartion of chiral carbon atom is determined .

它的分子结构中有一手性碳原子，大量研究结果证明其左旋光学异构体的生理活性比右旋异构体要高很多。

There is a chiral carbon atom in the EAMP 's molecule and it has been proved that the S-EAMP has higher biological activity than that of the D-EAMP .

手性碳原子R，S构型确定法

Methods to Determine R , S Configuration of Enantiomers

楔形式中手性碳原子R，S构型的快捷判断法

Simple Method to Determine the R / S Configuration of Chiral Molecule Shown by Cuneiform

糖类化合物手性碳原子R／S构型快速判别方法初探

Preliminary study on quick method of distinguishing the r / s configuration of the chiral carbon atoms in carbohydrates

由于手性碳原子的存在，与其相邻亚甲基的质子峰在~1HNMR谱上清楚地发生分裂。

Due to the existence of a chiral carbon , the peaks of methylene protons adjacent to it clearly split on the ￣ 1H NMR spectra .

类酶催化反应中手性碳原子取代基的空间效应

Steric Effect of Chiral Carbon Replacing Group in the Similar Enzyme Reaction

含有四个碳原子的醛糖，丁糖，有两个手性碳原子；

Aldoses with four carbon atoms , the tetroses , have two chiral carbon atoms ;

因此，这个碳原子称手性碳原子。

These carbon atoms are therefore chiral .

一种用右手螺旋法来判断手性碳原子R/S构型的方法。

A method of determination the R. S configuration by right - handed spiral was explained .

合成并鉴定了6个分别都具有4个手性碳原子的环丙烷氨基酸衍生物。

New products , all of them contained four chiral carbon atoms are synthesized and characterized .

虽经X-射线单晶衍射分析，但仍不能确定该手性碳原子的绝对构型。

Though a single-crystal X-ray diffraction analysis of the compound was carried out , the configuration of the chiral carbon cannot be confirmed .

由于在侧链的合成中，有手性碳原子发生了构型翻转，因此我们合成了一个相应的多利培南光学异构体，以利于质量控制。

Due to the configuration inversions of chiral carbon in the synthesis of side chain , we synthesized the corresponding optical isomer of doripenem for quality control .

秋水仙碱是医治癌症的重要药物，其结构中不仅存在手性碳原子的构型问题，也存在类似于联苯衍生物的构型和构象问题。

The colchicine is an important medicine for cancer . There are not only configurational problems of chiral carbon atom but the problems of configuration and conformation similar to the biphenyl derivatives .

通过晶体结构和量子化学计算的结果对该化合物中两个手性碳原子同时发生构型翻转进行了讨论。

The reversions in configuration of two chiral carbon atoms at the same time are discussed by means of the results of the quantum chemical calculations as well as its crystal structure .

介绍一种以手为模型来判断手性碳原子构型的方法和表示，从而简化了使用原子次序规则来对光活性物质的命名。

This paper introduces the Judgement and signification of chiral carbon atomic configuration by using the hand model method , which simplifies the name of optical activity substance according to the rule of atomic order .