Cbz-Ala Cs salt | 61543-49-5

• 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: Cbz-Ala Cs salt
• 英文别名: Z-L-Ala-OCs
• CAS: 61543-49-5
• 化学式: C₁₁H₁₂NO₄*Cs
• 分子量: 355.126
• InChiKey: HCONYDVOMPNNEM-QRPNPIFTSA-M

计算性质

• 辛醇/水分配系数(LogP)：
  -2.94
• 重原子数：
  17.0
• 可旋转键数：
  4.0
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.27
• 拓扑面积：
  78.46
• 氢给体数：
  1.0
• 氢受体数：
  4.0

反应信息

• 作为反应物：
  描述：

  Cbz-Ala Cs salt 在 papain immobilized on Celite No_. 535 、 三乙胺 作用下， 以 aq. phosphate buffer 、 N,N-二甲基甲酰胺 、 乙腈 为溶剂， 反应 24.0h， 生成 Z-(S)-Ala-(S)-Leu-NH2
  参考文献：
  名称：

  木瓜蛋白酶使用氨基甲酰基甲基酯作为酰基供体介导的动力学控制的肽合成。

  摘要：

  在固定于硅藻土的半胱氨酸蛋白酶木瓜蛋白酶存在下，通常以高收率合成一系列二肽，其中氨基甲酰基甲基（Cam）酯为酰基供体。通常也以高收率获得数个段的缩合，而没有消旋化和形成二次水解产物的危险。此外，一些生物活性肽的部分序列是通过片段缩合制备的，并且通常以高收率获得了针对性的肽，而没有羧基组分的C-末端残基的外消旋化。因此，在半胱氨酸介导的偶联中再次确定了Cam酯在动力学控制的肽合成中的优越性。 如先前报道的被丝氨酸蛋白酶催化的那些。

  DOI：

  10.1007/s10989-014-9393-0

文献信息

• Improved Synthesis of Amino Acid and Dipeptide Chloromethyl Esters Using Bromochloromethane
  作者：Paula Gomes、Maria Isabel Santos、Maria Joaquina Trigo、Raquel Castanheiro、Rui Moreira

  DOI：10.1081/scc-120018930

  日期：2003.1.6

  Abstract Peptide chloromethyl esters are important compounds in prodrug synthesis. A simple, mild and efficient method for the synthesis of chloromethyl esters of N-blocked amino acids and dipeptides using exclusively bromochloromethane is reported. These N-blocked amino acid and dipeptide chloromethyl esters react readily with the carboxylic acid group of aspirin and with the sulfonamido group of

  摘要 肽氯甲酯是前药合成中的重要化合物。报道了一种仅使用溴氯甲烷合成 N 封闭氨基酸和二肽的氯甲酯的简单、温和且有效的方法。这些 N 封闭的氨基酸和二肽氯甲酯很容易与阿司匹林的羧酸基团和抗疟药磺胺二甲嘧啶的磺胺基反应，得到相应的前药。
• HYCRON, an Allylic Anchor for High-Efficiency Solid Phase Synthesis of Protected Peptides and Glycopeptides
  作者：Oliver Seitz、Horst Kunz

  DOI：10.1021/jo960743w

  日期：1997.2.1

  The recently developed allylic HYCRON anchor(1) exhibits excellent properties for the solid phase synthesis of protected peptides and glycopeptides. Model reactions with analogous low molecular weight compounds assessed the acid- and base-stability of the polar and flexible HYCRON linkage. The new anchor is available in a two-step synthesis and allows the use of both the Boc- and the Fmoc-strategy, which can even be combined within one synthesis. Protected glycopeptides are released under almost neutral conditions, taking advantage of the Pd(O)-catalyzed allyl transfer to a weakly basic nucleophile such as N-methylaniline. The highly efficient synthesis of O-alpha GalNAc-(T-N)-peptides of the MUC-1 repeating unit is described. Acid- and base-stability of the allyl ester linkage enabled the synthesis of an O-glucosylated peptide by first removing a threonine tert-butyl group on the solid phase and subsequently glycosylating the liberated resin-bound hydroxyl component.
• A study of the effect on nucleophilic hydrolytic activity of pancreatic elastase, trypsin, chymotrypsin, and leucine aminopeptidase by boronic acids in the presence of arabinogalactan: a subsequent study on the hydrolytic activity of chymotrypsin by boronic acids in the presence of mono-, di-, and trisaccharides
  作者：Reem Smoum、Abraham Rubinstein、Morris Srebnik

  DOI：10.1016/j.bioorg.2003.08.004

  日期：2003.12

  The hydrolytic activity of trypsin, chymotrypsin, elastase, and leucine aminopeptidase, is inhibited by different boronic acids. However, all the enzymes are inhibited by the compound CbzAla(boro)Gly(OH)(2). Therefore, these additives can control the nucleophilic hydrolytic activity of these enzymes. (C) 2003 Elsevier Inc. All rights reserved.
• Gunnarsson, Kerstin; Ragnarsson, Ulf, Acta Chemica Scandinavica, 1990, vol. 44, # 7, p. 944 - 951
  作者：Gunnarsson, Kerstin、Ragnarsson, Ulf

  DOI：——

  日期：——
• Liu Chuan Fa; Tam, Journal of the American Chemical Society, 1994, vol. 116, # 10, p. 4149 - 4153
  作者：Liu Chuan Fa、Tam

  DOI：——

  日期：——