N-benzyloxycarbonyl-L-alanyl-L-threonine | 78609-60-6

• 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: N-benzyloxycarbonyl-L-alanyl-L-threonine
• 英文别名: Z-L-Ala-L-Thr-OH；Z-Ala-Thr-OH；(2S,3R)-2-((S)-2-(((benzyl)oxycarbonyl)amino)propanamido)-3-hydroxybutanoic acid；N-(N-benzyloxycarbonyl-L-alanyl)-L_s-threonine；N-(N-Benzyloxycarbonyl-L-alanyl)-L_s-threonin；(2S,3R)-3-hydroxy-2-[[(2S)-2-(phenylmethoxycarbonylamino)propanoyl]amino]butanoic acid
• CAS: 78609-60-6
• 化学式: C₁₅H₂₀N₂O₆
• 分子量: 324.334
• InChiKey: ONSJKBWEYSPLAL-UMNHJUIQSA-N

物化性质

• 沸点：
  625.8±55.0 °C(Predicted)
• 密度：
  1.300±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  0.6
• 重原子数：
  23
• 可旋转键数：
  8
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.4
• 拓扑面积：
  125
• 氢给体数：
  4
• 氢受体数：
  6

反应信息

• 作为反应物：
  描述：

  N-benzyloxycarbonyl-L-alanyl-L-threonine 在 palladium on activated charcoal 氢气 、 4-甲基苯磺酸吡啶 、 1-羟基苯并三唑 、 N,N'-二环己基碳二亚胺 作用下， 以 四氢呋喃 、 甲醇 、 乙醚 为溶剂， 反应 3.0h， 生成 (4S,5R)-3-((S)-2-Acetylamino-propionyl)-2,2,5-trimethyl-oxazolidine-4-carboxylic acid methylamide
  参考文献：
  名称：

  Pseudo-Prolines as a Molecular Hinge:  Reversible Induction of cis Amide Bonds into Peptide Backbones

  摘要：

  Serine, threonine-derived (4S)-oxazolidine-4-carboxylic acid, and cysteine-derived (4R)-thiazolidinecarboxylic acid, denoted pseudo-proline (Xaa[Psi(R1,R2)pro]), serve as structure disrupting, solubilizing building blocks in peptide synthesis. Variation of the 2-C substituents within the heterocyclic system results in different physicochemical and conformational properties. NMR studies of a series of pseudo-proline (Psi Pro)-containing peptides reveal a pronounced effect of the 2-C substituents upon the cis to trans ratio of the adjacent amide bond in solution. 2-C unsubstituted systems show a preference similar to that of the proline residue for the trans form, whereas 2,2-dimethylated derivatives adopt the cis amide conformation in high content. For 2-monosubstituted Psi Pro, the cis-trans distribution depends on the 2-C chirality. For the 2-(S)-diastereoisomer, both forms are similarly populated in solution, whereas the 2-(R)-epimer adopts preferentially the trans form. The results are supported by conformational energy calculations and suggest that, by tailoring the degree of substitution, pseudo-prolines may serve as a temporary proline mimetic or as a hinge in peptide backbones.

  DOI：

  10.1021/ja962780a
• 作为产物：
  描述：

  苄氧羰基-L-丙氨酸 在 氯化亚砜 、 三乙胺 作用下， 以 二氯甲烷 、 水 、 乙腈 为溶剂， 反应 4.75h， 生成 N-benzyloxycarbonyl-L-alanyl-L-threonine
  参考文献：
  名称：

  Synthesis, molecular docking and anticancer studies of peptides and iso-peptides

  摘要：

  Chiral peptides and iso-peptides were synthesized in excellent yield by using benzotriazole mediated solution phase synthesis. Benzotriazole acted both as activating and leaving group, eliminating frequent use of protection and subsequent deprotection. The procedure was based on the hypothesis that epimerization should be suppressed in solution due to a faster coupling rate than SPPS. All the synthesized peptides complied with Lipinski's Ro5 except for the rotatable bonds. Inhibition of cell proliferation of cancer cell lines is one of the most commonly used methods to study the effectiveness of any anticancer agents. Synthesized peptides and iso-peptides were tested against three cancer cell lines (MCF-7, MDA-MB 231) to determine their anti-proliferative potential. NF kappa B was also determined. Molecular docking studies were also carried out to complement the experimental results. (C) 2015 Elsevier Ltd. All rights reserved.

  DOI：

  10.1016/j.bmcl.2015.05.020

文献信息

• MONITORED AMINOLYSIS OF 3-ACYL-l,3-THIAZ0LIDINE-2-THI0NE WITH AMINO ACID AND ITS DERIVATIVE: PEPTIDE BOND FORMATION, CHEMOSELECTIVE ACYLATION, AND BRIDGING REACTION
  作者：Yoshimitsu Nagao、Tadayo Miyasaka、Kaoru Seno、Masahiro Yagi、Eiichi Fujita

  DOI：10.1246/cl.1981.463

  日期：1981.4.5

  As a new extention of the monitored aminolysis of 3-acyl-l,3-thiazolidine-2-thione, its applications to peptide bond formation, chemoselective acylation of amino acid, and bridging reaction onthe enzyme model are reported.

  作为3-酰基-1,3-噻唑烷-2-硫酮氨解监测的新延伸，报道了其在肽键形成、氨基酸化学选择性酰化和酶模型桥接反应中的应用。
• Quantitative description of epimerization pathways using the carbodiimide method in the synthesis of peptides
  作者：Carola Griehl、Alfred Kolbe、Susanne Merkel

  DOI：10.1039/p29960002525

  日期：——

  mechanism of epimerization in carbodiimide synthesis has been investigated by varying the side chain of the activated acids. A series of peptides N-benzyloxycarbonyl-Ala-Xaa-OH with 20 different residues Xaa were coupled with valine methyl ester in dichloromethane and dimethylformamide. The kinetic data and the extent of epimerization were determined for the peptide synthesis and the aminolysis of isolated

  已经通过改变活化酸的侧链研究了碳二亚胺合成中差向异构的机理。将具有20个不同残基Xaa的一系列肽N-苄氧基羰基-Ala-Xaa-OH与缬氨酸甲酯在二氯甲烷和二甲基甲酰胺中偶联。通过红外光谱法，旋光法和反相HPLC测定肽合成和分离的恶唑-5（4 H）-酮的氨解的动力学数据和差向异构化的程度。结合结果，我们首次成功地定量描述了差向异构的重叠途径及其在碳二亚胺合成过程中对氨基酸序列的依赖性。
• Nagao, Yoshimitsu; Miyasaka, Tadayo; Seno, Kaoru, Journal of the Chemical Society. Perkin transactions I, 1984, p. 2439 - 2446
  作者：Nagao, Yoshimitsu、Miyasaka, Tadayo、Seno, Kaoru、Fujita, Eiichi、Shibata, Daisuke、Doi, Etsushiro

  DOI：——

  日期：——
• Wieland et al., Justus Liebigs Annalen der Chemie, 1959, vol. 626, p. 154,170
  作者：Wieland et al.

  DOI：——

  日期：——