Boc-Aib-OBzl | 84758-57-6

• 分子结构分类: 有机化合物 - 苯类化合物 - 苯和取代衍生物
• 英文名称: Boc-Aib-OBzl
• 英文别名: Tert-butyl 2-((benzyloxy)carbonyl)propan-2-ylcarbamate；benzyl 2-methyl-2-[(2-methylpropan-2-yl)oxycarbonylamino]propanoate
• CAS: 84758-57-6
• 化学式: C₁₆H₂₃NO₄
• mdl: MFCD24391914
• 分子量: 293.363
• InChiKey: JSHOTYXGIXVRLN-UHFFFAOYSA-N

物化性质

• 沸点：
  401.0±28.0 °C(Predicted)
• 密度：
  1.085±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  2.9
• 重原子数：
  21
• 可旋转键数：
  7
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.5
• 拓扑面积：
  64.6
• 氢给体数：
  1
• 氢受体数：
  4

反应信息

• 作为反应物：
  描述：

  Boc-Aib-OBzl 在 盐酸 作用下， 以 1,4-二氧六环 为溶剂， 生成 α-氨基异丁酸苄酯 盐酸盐
  参考文献：
  名称：

  Toward the Back-Up of Boceprevir (SCH 503034): Discovery of New Extended P₄-Capped Ketoamide Inhibitors of Hepatitis C Virus NS3 Serine Protease with Improved Potency and Pharmacokinetic Profiles

  摘要：

  Hepatitis C is the most prevalent liver disease. Viral hepatitis C (HCV), a small (+)-RNA virus, infects chronically an estimated 300 million people worldwide. Results of Phase I clinical studies with our first generation HCV inhibitor Boceprevir, SCH 503034 (1), presented at the 56th Annual Meeting of the American Association for the Study of Liver Diseases (AASLD) were encouraging, and thus, additional human clinical studies are underway. In view of the positive data from our first generation compound, further work aimed at optimizing its overall profile was undertaken. Herein, we report that extension of our earlier inhibitor to the P-4 pocket and optimization of the P-1' capping led to the discovery of new ketoamide inhibitors of the HCV NS3 serine protease with improved in vitro potency. In addition to being potent inhibitors of HCV subgenomic RNA replication, some of the new P-4-capped inhibitors were also found to have improved PK profile.

  DOI：

  10.1021/jm801632a
• 作为产物：
  描述：

  N-叔丁氧羰基-2-甲基丙氨酸 在 碳酸氢钠 作用下， 以 甲醇 、 水 、 N,N-二甲基甲酰胺 为溶剂， 反应 16.0h， 生成 Boc-Aib-OBzl
  参考文献：
  名称：

  WO2006/121820

  摘要：

  公开号：

文献信息

• Dipeptide analogs for treating conditions associated with amyloid fibril formation
  申请人：Gazit Ehud

  公开号：US09096645B2

  公开（公告）日：2015-08-04

  Dipeptide analogs comprising a tryptophan (Trp) moiety coupled to a beta-sheet breaker moiety derived from alpha-aminoisobutyric acid (Aib) are disclosed. The dipeptide analogs exhibit an improved performance in inhibiting amyloid fibril formation, as compared to previously described dipeptides. Compositions containing the dipeptide analogs and uses thereof in treating amyloid-associated diseases and disorders are also disclosed.

  披露了包含色氨酸（Trp）结构域与源自α-氨基异丁酸（Aib）的β-折叠破坏剂结构域偶联的二肽类似物。与之前描述的二肽相比，这些二肽类似物在抑制淀粉样纤维形成方面表现出更好的性能。还披露了含有这些二肽类似物的组合物，以及它们在治疗与淀粉样蛋白相关疾病和障碍中的应用。
• N-Pyrrolidine-based α/β-peptides incorporating ABOC, a constrained bicyclic β-amino acid, for asymmetric aldol reaction catalysis
  作者：Pierre Milbeo、Kelly Maurent、Laure Moulat、Aurélien Lebrun、Claude Didierjean、Emmanuel Aubert、Jean Martinez、Monique Calmès

  DOI：10.1016/j.tet.2016.02.027

  日期：2016.3

  A series of N-pyrrolidine-based α,β-peptide catalysts incorporating a constrained 2-aminobicyclo[2.2.2]octane carboxylic acid (ABOC) residue were synthesized and evaluated in the asymmetric aldol reaction from acetone and some p-substituted benzaldehydes. Their catalytic properties were shown to be highly dependent on the amino acid sequences and on the absolute configuration of the ABOC residue that

  合成了一系列结合了约束的2-氨基双环[2.2.2]辛烷羧酸（ABOC）残基的N-吡咯烷基α，β-肽催化剂，并在丙酮和一些对位取代的苯甲醛的不对称羟醛反应中进行了评估。结果表明，它们的催化性能高度依赖于氨基酸序列以及起决定性作用的ABOC残基的绝对构型。在所测试的肽中，固态的转手构型的杂手性三肽H-Pro-（R）-ABOC-Asp-OCH 3 13被证明是最有效的催化剂，可高产率地提供β-羟基酮和良好的对映选择性（高达87％）。
• Synthesis, Preferred Conformation, and Membrane Activity of Medium-Length Peptaibiotics: Tylopeptin B
  作者：Marina Gobbo、Claudia Poloni、Marta De Zotti、Cristina Peggion、Barbara Biondi、Gema Ballano、Fernando Formaggio、Claudio Toniolo

  DOI：10.1111/j.1747-0285.2009.00920.x

  日期：2010.2

  The solid‐phase synthesis and full chemical characterization of the medium‐length (14‐amino acid residues) peptaibol with antibiotic properties of tylopeptin B, originally extracted from the fruiting body of the mushroom Tylopilus neofelleus, are described. These data are accompanied by the results on the solution‐phase synthesis via the segment condensation approach of a selected, side‐chain protected

  描述了最初从蘑菇Tylopilus neofelleus的子实体中提取的具有酪胺肽B的抗生素特性的中等长度（14个氨基酸残基）肽醇的固相合成和完整化学特征。这些数据都伴随着在溶液相合成的结果通过一个选择的，侧链保护的，模拟的段缩合方法。通过结合使用FTIR吸收，圆二色性和2D-NMR（后一种技术与分子动力学计算相结合）进行的溶液构象分析，得出的结论是，酪蛋白B的3D结构在很大程度上是螺旋形的，并且优先考虑α-或3 10螺旋类型取决于溶剂的性质。螺旋拓扑和（部分）两亲性特征是这种肽生物素所观察到的膜修饰特性的原因。
• Synthese von 2-methylalanin-peptiden, die pH-Abhängiggkeit ihrer 13C-NMR-spektren und eine neue methode zur auswertung über CS-diagramme
  作者：Dieter Leibfritz、Erhard Haupt、Norbert Dubischar、Heinrich Lachmann、Raymond Oekonomopulos、Günther Jung

  DOI：10.1016/0040-4020(82)85164-8

  日期：1982.1

  The uncommon amino-acid 2-methylalanine (α-aminoisobutyric acid, Aib) was investigated by 13C-NMR. The chemical shifts of amino- or carboxy-protected derivatives of Aib and of protected oligopeptides are discussed with respect to neighbouring groups and amino acids. The pH-dependence of the 13C-NMR spectra of Aib, Aib-Ala, Ala-Aib, Aib-Ala-Aib and Aib-Ala-Aib-Ala-Aib was studied. Using these examples

  通过13 C-NMR研究了不常见的氨基酸2-甲基丙氨酸（α-氨基异丁酸，Aib）。关于相邻基团和氨基酸，讨论了Aib的氨基或羧基保护的衍生物和受保护的寡肽的化学位移。研究了Aib，Aib-Ala，Ala-Aib，Aib-Ala-Aib和Aib-Ala-Aib-Ala-Aib的13 C-NMR光谱的pH依赖性。使用这些示例，首次展示了一种新的有利方法，用于评估NMR滴定曲线，该方法使用了所谓的化学位移图（CS图）。
• Cyclopropanecarboxylic Acid Esters as Potential Prodrugs with Enhanced Hydrolytic Stability
  作者：David M. Bender、Jeffrey A. Peterson、James R. McCarthy、Hakan Gunaydin、Yu Takano、K. N. Houk

  DOI：10.1021/ol702892e

  日期：2008.2.1

  Esters of cyclopropanecarboxylic acid demonstrate a substantial increase in stability under both acid- and base-catalyzed hydrolytic conditions. Comparison of the stability of valacyclovir 13 with the cyclopropane analogue 14 shows that at 40 degrees C and pH 6 the half-life of 14 is >300 h while the value for 13 is 69.7 h. CBS-QB3 calculations on isodesmic reactions for transfer of groups from an

  环丙烷羧酸酯在酸和碱催化的水解条件下均显示出稳定性的大幅提高。伐昔洛韦13与环丙烷类似物14的稳定性比较表明，在40摄氏度和pH值为6时，14的半衰期> 300 h，而13的半衰期为69.7 h。CBS-QB3对等价反应的计算表明，该反应是将基团从烷烃转移至酯的过程，表明环丙基可提供超共轭稳定作用。