英语释义

1. of, relating to, or constituting a compound or mixture that is composed of equal amounts of dextrorotatory and levorotatory forms of the same compound and is not optically active

2. of, relating to, or constituting a compound or mixture that is composed of equal amounts of dextrorotatory and levorotatory forms of the same compound and is optically inactive — compare dl-

片语

racemic menthol外消旋薄荷脑

racemic switching外消旋转化

Racemic bambuterol消旋体

Racemic Form消旋体；消旋式

racemic compounds外消旋化合物

racemic lactide内消旋丙交酯

racemic epinephrine（外）消旋肾上腺素

racemic epoxiconazole氟环唑外消旋体

英汉例句

• when considering biocatalysis, terms like kinetic racemic resolution or chiral syntheses immediately come to mind.

  提到生物催化，我们通常会想到外消旋物的动力学拆分和手性合成。

• the prepared polymers were applied as the liquid chromatographic chiral stationary phase to test their resolution ability for racemic carnitine hydrochloride.

  将所得聚合物用作高效液相色谱固定相，研究了它们对外消旋卡尼丁盐酸盐的拆分能力。

• presently, most of the catalysts used for the resolution of racemic mixtures are hydrolases, especially lipases.

  目前，用于拆分外消旋化合物的酶多数是水解酶，而且绝大多数为脂肪酶。

• to develop a practical process for(r)-2-octanol production from racemic 2-octanol, a two step microbial reaction was investigated.

  建立了一种新的制备手性2-辛醇的方法——双菌氧化还原耦联转化外消旋2-辛醇制备（r）-2-辛醇。

• two different catalysts for oxidative coupling of 2-naphthol to give racemic 1,1′-binaphthene-2,2「-diol(binol) were introduced and the yields in different conditions were studied.

  介绍了两种在水相中利用2-萘酚氧化偶合制备外消旋1，1’-联-2，2’-二萘酚的催化剂，并对不同反应条件下的产率进行了研究。

• the dynamic kinetic resolution (dkr) of racemic compounds provides one of the most convenient and efficient routes to a wide range of enantiomerically enriched molecules.

  动态动力学拆分是合成具有光学活性化合物最方便和最有效的方法之一。

• this paper studied the resolution of racemic 1,2-propanediol with bakers yeast.

  用酵母进行了氧化拆分外消旋1，2-丙二醇的试验研究。

• recent progress in transformation with microbial enzyme including asymmetric catalysis synthesis and racemic reduction techniques to produce chiral drug were reviewed.

  通过微生物酶催化不对称合成反应或拆分外消旋体合成医药手性中间体具有独特的优势。

• to study the mechanism of interaction between a series of potent racemic selective estrogen receptor modulators ( serm ) and estrogen receptors ( er).

  目的：研究一类高活性消旋化的雌激素受体调节剂与其受体间的相互作用机制。

• a stereoselective hydrolysis of the racemic naproxen methyl ester by immobilized lipase from candida rugosa in a low aqueous organic biphase system was studied.

  研究了微水有机溶剂两相体系中固定化脂肪酶催化的萘普生甲酯的立体选择性水解反应。

• the present invention relates to a process for preparing optically active bisphosphinylalkanes, starting from the correspondingly substituted, racemic 1,2-diols.

  本发明涉及一种从相应取代的外消旋1，2-二醇制备旋光二氧膦基链烷 的方法。

• the resolution process of racemic 1,1」-binaphthol(binol) is studied in this article.

  对外消旋1，1「-联二萘酚（binol）的拆分进行了研究。

• the resolution of racemic compounds by crural inclusion complexation reported in 47 references is reviewed with 47 references. the chiral recognition principles in inclusion complex is also discussed.

  综述了手性包结拆分方法在拆分外消旋化合物中的应用，并讨论了包结拆分中的手性识别原理。参考文献47篇。

• glycidyl butyrate was synthesized from racemic epichlorohydrin and butyric acid by chemical means. the purity of the refined product was over 96% and the yield was about 47%.

  利用化学方法，由外消旋环氧氯丙烷出发，合成丁酸环氧丙酯，精制后可获得纯度96%以上的丁酸环氧丙酯，收率为47% 。

• in the dissertation we design the synthetical route of racemic salbutamol and (r)-salbutamol.

  本文设计了外消旋沙丁胺醇和手性（r）—沙丁胺醇的合成路线。

• mechanisms of the resolution of some of the racemic compounds on these bounded phases were proposed.

  本文对部分化合物对映异构体的拆分机制进行了初步探讨。

• use of stereoselective or stereospecific synthetic methods or separation of racemic mixtures can be used to obtain individual optical isomers.

  可以使用立体选择或立体专一的合成方法，或者外消旋混合物的分离，来获得单独的光学异构体。

• the main route for obtaining optically active alcohols is resolution of racemic alcohols catalyzed by enzyme in organic solvents by the esterification reaction.

  有机相中应用酯化反应，酶法催化拆分消旋醇是获得光学活性醇的重要途径。

• finally 9amaa and 9aha were found to be novel in nmr method. racemic resolution is the main route for preparation of optical pure chiral compounds.

  因此，如何进行9amaa、9aha的合成、手性拆分并获得光学纯手性识别试剂的研究已成为我们实验的一个关键。

• acetyl l carnitine was synthesized from racemic carnitine chloride and acetic acid by chemical means. the purity of the refined product was over 99% and the yield was about 96%.

  采用化学方法以肉堿为底物，合成了外消旋乙酰肉堿，精制后可获得纯度99%以上的乙酰肉堿，收率为96%。

• in addition, the applications of enzyme-membrane bioreactors, especially in the resolution of racemic mixtures and the treatment of wastewater, have also been briefly discussed.

  此外，还对酶膜生物反应器，尤其是其在对外消旋混合物手性拆分以及污水处理方面的应用作了简要的介绍。

• in many cases, racemic drug」s single antipode has different curative effect, sometimes it even has adverse action.

  在许多情况下，外消旋药物中的单一对映体分别具有不同的疗效，有的甚至有相反的作用。

• results showed that racemic mixtures of naproxen ester could be separated on cta chiral stationary phase.

  实验结果表明：外消旋萘普生酯能在cta手性柱上获得分离；

• then various racemic alcohols were separated and their thermodynamic data were determined.

  然后拆分了各种外消旋醇，测定并计算热力学数据。

• at the same time, this paper also split the r-isomer of racemic to change and re-recovery.

  同时本论文也对拆分后的r型异构体进行转变消旋而重回收。