racemate

Conclusion Resolution of racemate by the hydrolysis with enzyme provides a brand-new method for the preparatio.

方法　采用生物有机合成方法 ,应用手性试剂胰酶 ,对消旋体 (± ) 2 ,3 二溴丙醇醋酸酯进行拆分。

The (3S) racemate of pazufloxacin (1) was synthesized from ethyl 3-methyl-9,10-difluoro-7-oxo-2,3-dihydro-7H-pyrido[1,2,3-de][1,4]benzoxazine-6-carboxylate (3) by nucleophilic substitution and decarboxylation,followed by cyclization,hydrolysis and Hofmann degradation with an overall yield of 25.

以3-甲基-9,10-二氟-7-氧代-2,3-二氢-7H-吡啶并[1,2,3-de][1,4]苯并噁嗪-6-羧酸乙酯(3)为原料,经亲核取代、脱羧、环合、水解、Hofmann降解可制得帕珠沙星消旋体(1),总收率25。

Lysophosphatidic acid (LPA),including 1-acyl LPA and 1-O-alkyl LPA,were synthesized chemically as racemates.

报导了酯键溶血磷脂酸和醚键溶血磷脂酸消旋体的合成。

Many new single-enantiomer drugs are derived from chiral switches of established racemates.

通过上市消旋体药物不同的药理作用和代谢产物3个方面综述了手性转换在手性药物研究中的进展。

Pharmacokinetics of phencynonate enantiomers and urine excretion of phencynonate raceme in rats;

苯环壬酯对映体在大鼠体内的药物动力学及外消旋体的尿排泄

This article reviews some kinds of resolution methods of raceme based on membrane processes.

对外消旋体实施拆分是获得手性物质的重要途径。

The (dynamic) kinetic resolution of raceme is one of the important ways in the synthesis of chiral compounds.

外消旋体的 (动态 )动力学拆分反应是制备手性化合物的重要方法之一。

Recent research progresses of method of preparation in chiral compound's racemate of amino acids were reviewed in this paper, the possible development future of it was predicted.

综述了近年来含氨基酸的手性化合物外消旋体的制取方法,并展望了其研究发展的前景。

They are all chiral molecules and belong in the racemate.

它们都是手性分子,属于外消旋体。

It was a racemate composed of an equimolar mixture of R-(+)- and S-(-)-enantiomers.

苯丙哌啉，化学名为1-[2-(2-苄基苯氧基)-1-甲基乙基]-哌啶，是一种兼具中枢和外周作用的二苯哌丙烷类非成瘾性强镇咳药，临床上长期以外消旋体给药，作为镇咳药物使用。

For the reason why optical activity of mesomer is counteracted classical answer was not convincing.

指出了内消旋体消旋原因传统解释的不合理性。

The racemate is optically inactive.

外消旋体是不旋光的。

Metamfetamine racemate

去氧麻黄碱外消旋体

Metamfetamine racemate hydrochloride

去氧麻黄碱外消旋体盐酸

After acidic hydrolysis, phenylalanine was obtained with total yield of 62.5%.

然后经酸性水解得苯丙氨酸消旋体。

Aqueous Two Phase Extraction for the Enantioseparation of Mandelic Acid Enantiomers

双水相手性萃取拆分扁桃酸外消旋体

Comparative Effects of Benproperine and Its Enantiomers;

苯丙哌啉外消旋体与对映体药理作用研究

Separation of ketoconazole enantiomers using high performance liquid chromatography with chiral mobile phase additives

手性流动相添加法拆分酮康唑外消旋体

" Racemate: Mixture of equal quantities of two enantiomers, substances whose molecular structures are mirror images of one another."

外消旋体: 两种分子结构互为镜像的对映体的等量混合物。

(Dynamic)Kinetic Resolution Reactions of Racemes Catalyzed by Lewis Acid and Base Catalysts

路易斯酸碱催化的外消旋体(动态)动力学拆分反应

Dynamic Kinetic Resolution of Racemes Catalyzed by Enzyme

酶催化外消旋体的动态动力学拆分反应研究进展

Enantioseparation of Mandelic Acid Enantiomers by Co-extractants with Di(2-ethylhexyl)phosphoric Acid and Tartaric Acid Derivatives

二(2-乙基己基)磷酸与酒石酸衍生物复合萃取拆分扁桃酸外消旋体

internally compensated inactive compound

内消旋(无旋光性)化合物

Studies of He Wei Bao (HWB) on Treating Peptic Ulcer and of Effect on Inhibiting Helicobactor Pylori in Vitro;

和胃宝治疗消化性溃疡及抗体外培养幽门螺旋杆菌作用的研究

Studies on Syntheses of Racemic Homocitric Acid Lactone and the Intermediate of Novel Immunosuppressant FR901483;

外消旋高柠檬酸内酯及新型免疫抑制剂FR901483中间体的合成研究

Synthesis,Crystal Structures and Characterization of Two Racemic Dual-U-Shaped Mononuclear Lanthanide Complexes

两个外消旋双U形稀土单核配合物的合成、晶体结构及其表征

triple front round

直体全旋转体540°

Amino-acid Racemization Dating

氨基酸外消旋法断代

Racemoramide dihydrochloride

双氢氯化消旋吗散痛