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Condensation oscillations in the peptidization of phenylglycine

机译:苯甘氨酸肽化过程中的缩合振荡

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In earlier studies, we showed that certain low-molecular-weight carboxylic acids (profens, amino acids, hydroxy acids) can undergo spontaneous in vitro chiral conversion accompanied by condensation to from oligomers, and we proposed two simple models to describe these processes. Here, we present the results of investigations using non-chiral high-performance liquid chromatography with diode array detector ( HPLC -DAD) and mass spectrometry (MS) on the dynamics of peptidization of S -, R -, and rac -phenylglycine dissolved in 70% aqueous ethanol and stored for times up to one year. The experimental results demonstrate that peptidization of phenylglycine can occur in an oscillatory fashion. We also describe, and carry out simulations with, three models that capture key aspects of the oscillatory condensation and chiral conversion processes.
机译:在较早的研究中,我们表明某些低分子量的羧酸(脯氨酸,氨基酸,羟基酸)可以自发进行体外手性转化,并伴随缩合生成低聚物,我们提出了两个简单的模型来描述这些过程。在这里,我们介绍了使用非手性高效液相色谱与二极管阵列检测器(HPLC -DAD)和质谱(MS)进行的有关溶解于S-,R-和rac-苯基甘氨酸的肽化动力学研究的结果。 70%乙醇水溶液,可保存一年。实验结果表明苯甘氨酸的肽化可以振荡的方式发生。我们还描述了三种模型并进行了仿真,这些模型捕获了振荡性缩合和手性转化过程的关键方面。

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