Z-L-Val carbamoylmethyl ester | 203640-53-3

• 分子结构分类: 有机化合物 - 有机酸及其衍生物 - 羧酸及其衍生物
• 英文名称: Z-L-Val carbamoylmethyl ester
• 英文别名: N-[(Phenylmethoxy)carbonyl]-L-valine 2-amino-2-oxoethyl ester；(2-amino-2-oxoethyl) (2S)-3-methyl-2-(phenylmethoxycarbonylamino)butanoate
• CAS: 203640-53-3
• 化学式: C₁₅H₂₀N₂O₅
• 分子量: 308.334
• InChiKey: NNJTYYGJHUDUDZ-ZDUSSCGKSA-N

物化性质

• 沸点：
  524.6±45.0 °C(Predicted)
• 密度：
  1.208±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  1.7
• 重原子数：
  22
• 可旋转键数：
  9
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.4
• 拓扑面积：
  108
• 氢给体数：
  2
• 氢受体数：
  5

反应信息

• 作为反应物：
  描述：

  Z-L-Val carbamoylmethyl ester 、 L-脯氨酰胺 在 cross-linked enzyme aggregate of Alcalase 作用下， 反应 16.0h， 以76%的产率得到Cbz-L-Val-L-Pro-NH2
  参考文献：
  名称：

  Enzymatic synthesis of activated esters and their subsequent use in enzyme-based peptide synthesis

  摘要：

  Chemoenzymatic peptide synthesis is potentially the most cost-efficient technology for the synthesis of short and medium-sized peptides. However, there are still some limitations when challenging peptides, e.g. containing sterically demanding acyl donors, non-proteinogenic amino acids or proline residues, are to be synthesized. To remedy these limitations, special ester moieties have been used that are specifically recognized by the enzyme, e.g. guanidinophenyl, carboxamidomethyl (Cam) or trifluoroethyl (Tfe) esters, which, unfortunately, are notoriously difficult to synthesize chemically. Herein, we demonstrate that Cam and Tfe esters are very useful for Alcalase-CLEA mediated peptide synthesis using sterically demanding and non-proteinogenic acyl donors as well as poor nucleophiles, and combinations thereof. Furthermore, these esters can be efficiently synthesized by using the lipase Cal-B or Alcalase-CLEA. Finally, it is shown that the ester synthesis by Cal-B and subsequent peptide synthesis by Alcalase-CLEA can be performed simultaneously using a two-enzyme-one-pot approach with glycolamide or 2,2,2-trifluoroethanol as additive. (C) 2011 Elsevier B.V. All rights reserved.

  DOI：

  10.1016/j.molcatb.2011.03.012
• 作为产物：
  描述：

  CBZ-L-缬氨酸 、 氯乙酰胺 在 caesium carbonate 作用下， 以 甲醇 、 N,N-二甲基甲酰胺 为溶剂， 生成 Z-L-Val carbamoylmethyl ester
  参考文献：
  名称：

  在动态控制的肽合成中，通过使用氨基甲酰基甲酯作为酰基供体，扩大了α-胰凝乳蛋白酶的底物耐受性

  摘要：

  在动力学控制方法中 肽 通过α-胰凝乳蛋白酶介导的合成，可通过切换蛋白酶来实现蛋白酶底物耐受性的扩大。 酰基供体从常规的甲酯到氨基甲酰基甲酯。因此，作为典型实例，通过使用固有不良的甲基酯获得极低的偶联效率。氨基酸 基质， 翼，通过使用此特殊功能得到了显着改善 酯。在其他氨基酸残基如Gly和Ser的偶联中也观察到其改善作用。羧基 成分。

  DOI：

  10.1039/b004180g

文献信息

• Remarkable effects of donor esters on the α-chymotrypsin-catalyzed couplings of inherently poor amino acid substrates
  作者：Toshifumi Miyazawa、Kayoko Tanaka、Eiichi Ensatsu、Ryoji Yanagihara、Takashi Yamada

  DOI：10.1016/s0040-4039(97)10798-5

  日期：1998.2

  The extremely low efficiency during the α-chymotrypsin-catalyzed coupling of an inherently poor amino acid substrate, e.g., alanine, using the methyl ester as an acyl donor was significantly improved using esters such as the 2,2,2-trifluoroethyl or carbamoylmethyl ester. The ameliorating effect of the latter ester was especially significant.

  使用酯类（例如2,2,2-三氟乙基或氨基甲酰基甲基酯）可显着改善α-胰凝乳蛋白酶催化的固有不良氨基酸底物（如丙氨酸）在使用甲基酯作为酰基供体时的极低效率。后一种酯的改善作用特别显着。
• Broadening of the substrate tolerance of α-chymotrypsin by using the carbamoylmethyl ester as an acyl donor in kinetically controlled peptide synthesis
  作者：Toshifumi Miyazawa、Kayoko Tanaka、Eiichi Ensatsu、Ryoji Yanagihara、Takashi Yamada

  DOI：10.1039/b004180g

  日期：——

  In the kinetically controlled approach of peptide synthesis mediated by α-chymotrypsin, the broadening of the protease’s substrate tolerance is achieved by switching the acyl donor from the conventional methyl ester to the carbamoylmethyl ester. Thus, as a typical example, the extremely low coupling efficiency obtained by employing the methyl ester of an inherently poor amino acid substrate, Ala, is

  在动力学控制方法中 肽 通过α-胰凝乳蛋白酶介导的合成，可通过切换蛋白酶来实现蛋白酶底物耐受性的扩大。 酰基供体从常规的甲酯到氨基甲酰基甲酯。因此，作为典型实例，通过使用固有不良的甲基酯获得极低的偶联效率。氨基酸 基质， 翼，通过使用此特殊功能得到了显着改善 酯。在其他氨基酸残基如Gly和Ser的偶联中也观察到其改善作用。羧基 成分。
• Enzymatic synthesis of activated esters and their subsequent use in enzyme-based peptide synthesis
  作者：Timo Nuijens、Claudia Cusan、Annette C.H.M. Schepers、John A.W. Kruijtzer、Dirk T.S. Rijkers、Rob M.J. Liskamp、Peter J.L.M. Quaedflieg

  DOI：10.1016/j.molcatb.2011.03.012

  日期：2011.8

  Chemoenzymatic peptide synthesis is potentially the most cost-efficient technology for the synthesis of short and medium-sized peptides. However, there are still some limitations when challenging peptides, e.g. containing sterically demanding acyl donors, non-proteinogenic amino acids or proline residues, are to be synthesized. To remedy these limitations, special ester moieties have been used that are specifically recognized by the enzyme, e.g. guanidinophenyl, carboxamidomethyl (Cam) or trifluoroethyl (Tfe) esters, which, unfortunately, are notoriously difficult to synthesize chemically. Herein, we demonstrate that Cam and Tfe esters are very useful for Alcalase-CLEA mediated peptide synthesis using sterically demanding and non-proteinogenic acyl donors as well as poor nucleophiles, and combinations thereof. Furthermore, these esters can be efficiently synthesized by using the lipase Cal-B or Alcalase-CLEA. Finally, it is shown that the ester synthesis by Cal-B and subsequent peptide synthesis by Alcalase-CLEA can be performed simultaneously using a two-enzyme-one-pot approach with glycolamide or 2,2,2-trifluoroethanol as additive. (C) 2011 Elsevier B.V. All rights reserved.