Boc-Val-Val-Val-OMe | 53197-49-2

• 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: Boc-Val-Val-Val-OMe
• 英文别名: Boc-Val-Val-Val-OCH₃；N-Boc-Val-Val-Val-OMe；methyl (2S)-3-methyl-2-[[(2S)-3-methyl-2-[[(2S)-3-methyl-2-[(2-methylpropan-2-yl)oxycarbonylamino]butanoyl]amino]butanoyl]amino]butanoate
• CAS: 53197-49-2
• 化学式: C₂₁H₃₉N₃O₆
• 分子量: 429.557
• InChiKey: CZYQXLGXEVEEHZ-JYJNAYRXSA-N

物化性质

• 熔点：
  157 °C(Solv: ethyl acetate (141-78-6))
• 沸点：
  593.2±40.0 °C(Predicted)
• 密度：
  1.060±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  3.6
• 重原子数：
  30
• 可旋转键数：
  12
• 环数：
  0.0
• sp3杂化的碳原子比例：
  0.81
• 拓扑面积：
  123
• 氢给体数：
  3
• 氢受体数：
  6

反应信息

• 作为反应物：
  描述：

  Boc-Val-Val-Val-OMe 在 sodium hydroxide 作用下， 以 甲醇 为溶剂， 生成 Boc-Val-Val-Val
  参考文献：
  名称：

  Direct modification of tripeptides using photoinduced decarboxylative radical reactions

  摘要：

  In order to explore the applicability of photoinduced electron transfer (PET) promoted decarboxylative reactions to the direct modification of peptides, a study was performed to assess the influence of amino acid side chains on photoreactions of N-terminal protected tripeptides. Photoinduced decarboxylation reactions of tripeptides, which are composed of central amino acids that possess alkyl, phenyl, thioether, hydroxy, and amide containing side chains, in the presence or absence of acrylonitrile and a thiol were found to proceed smoothly to give the corresponding radical addition, H-abstraction, and substitution products. Although photoreactions of tripeptides containing central amino acids with phenol and indole (Tyr and Trp) moieties do not take place efficiently, appropriate protection of these groups enables the substrates to undergo smooth photoinduced decarboxylative reactions. (C) 2014 Elsevier Ltd. All rights reserved.

  DOI：

  10.1016/j.tet.2014.12.075
• 作为产物：
  描述：

  N-Boc-L-缬氨酸 在 1-羟基苯并三唑 、 盐酸-N-乙基-Nˊ-(3-二甲氨基丙基)碳二亚胺 、 N,N-二异丙基乙胺 、 sodium hydroxide 作用下， 以 甲醇 、 N,N-二甲基甲酰胺 为溶剂， 生成 Boc-Val-Val-Val-OMe
  参考文献：
  名称：

  Direct modification of tripeptides using photoinduced decarboxylative radical reactions

  摘要：

  In order to explore the applicability of photoinduced electron transfer (PET) promoted decarboxylative reactions to the direct modification of peptides, a study was performed to assess the influence of amino acid side chains on photoreactions of N-terminal protected tripeptides. Photoinduced decarboxylation reactions of tripeptides, which are composed of central amino acids that possess alkyl, phenyl, thioether, hydroxy, and amide containing side chains, in the presence or absence of acrylonitrile and a thiol were found to proceed smoothly to give the corresponding radical addition, H-abstraction, and substitution products. Although photoreactions of tripeptides containing central amino acids with phenol and indole (Tyr and Trp) moieties do not take place efficiently, appropriate protection of these groups enables the substrates to undergo smooth photoinduced decarboxylative reactions. (C) 2014 Elsevier Ltd. All rights reserved.

  DOI：

  10.1016/j.tet.2014.12.075

文献信息

• Reaction of [(Cp2TiCH3)(THF)+][BPh4] with Tripeptide Derivatives: Formation of Cationic (Peptide)titanocene Complexes
  作者：Dirk Harmsen、Gerhard Erker、Roland Fröhlich、Gerald Kehr

  DOI：10.1002/1099-0682(200212)2002:12<3156::aid-ejic3156>3.0.co;2-6

  日期：2002.12

  tripeptide methyl esters [Z-/Boc-5 to -12(pept)] was prepared using the amino acids glycine, alanine and valine. In both the alanine and the valine series a single glycine unit was introduced and its position inside the tripeptide framework was systematically varied. Reaction of these 16 tripeptide derivatives with the organometallic reagent [Cp2TiCH3(THF)+][BPh4−] (13) resulted in the formation of

  使用氨基酸甘氨酸、丙氨酸和缬氨酸制备了一系列 Z-和 Boc-保护的三肽甲酯 [Z-/Boc-5 至 -12(pept)]。在丙氨酸和缬氨酸系列中，引入了单个甘氨酸单元，并且其在三肽框架内的位置系统地变化。这 16 种三肽衍生物与有机金属试剂 [Cp2TiCH3(THF)+][BPh4−] (13) 的反应导致甲基（肽）二茂钛阳离子复合物的形成，该复合物含有与单个配位的强亲电性 [Cp2TiCH3+] 阳离子部分羧酰胺羰基氧原子。大多数情况下，中心氨基酸残基的羰基氧原子被特异性连接以产生配位产物 5-12(coord7)。在一些特定的情况下，还观察到 [Cp2TiCH3+] 阳离子和 N 端氨基酸部分之间 κO 加合物的形成，尤其是在 N 端甘氨酸衍生物的情况下。在一种情况下，我们观察到 [Cp2TiCH3+] 基团沿着链从 C4=O 迁移到 C7=O 位置。随后热诱导 CH4 消除产物 5-12(coord)
• Dynamics of 7-Azatryptophan Derivatives in Micellar Media. Elucidating the Interactions between Peptide Oligomers and Micelles
  作者：L. Kelepouris、G. J. Blanchard

  DOI：10.1021/jp014462q

  日期：2002.6.1

  We have investigated the motional and population relaxation dynamics of the nonnatural amino acid 7-azatryptophan (7AT) in free (zwitterionic) form and bonded to polyvaline oligomers in aqueous micelles. We have studied the oligomers in solutions of anionic, cationic, and neutral surfactants above their critical micelle concentrations. The use of these peptide oligomers enables the study of charge and structure on interactions with aqueous micelles. The 7AT fluorescence population decay and reorientation dynamics are monitored in aqueous and micellar solutions as a function of micellar headgroup charge and oligopeptide chain length. The lifetime data on 7AT are discussed in terms of its local environment, and the data point to partitioning of probes into micelles mediated by ionic and dispersion interactions with the micelles. The reorientation dynamics are indicative of persistent 7AT-micelle interactions and can be understood in the context of the hindered rotor model.
• Bonora, Gian Maria; Toniolo, Claudio, Gazzetta Chimica Italiana, 1981, vol. 111, # 5/6, p. 239 - 241
  作者：Bonora, Gian Maria、Toniolo, Claudio

  DOI：——

  日期：——