Z-Val-Leu-OH | 17708-79-1

• 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-Val-Leu-OH
• 英文别名: (S)-2-((S)-2-(((benzyloxy)carbonyl)amino)-3-methylbutanamido)-4-methylpentanoic acid；(2S)-4-methyl-2-[[(2S)-3-methyl-2-(phenylmethoxycarbonylamino)butanoyl]amino]pentanoic acid
• CAS: 17708-79-1
• 化学式: C₁₉H₂₈N₂O₅
• mdl: MFCD00069971
• 分子量: 364.442
• InChiKey: ABNKBDCDDUXJCU-HOTGVXAUSA-N

物化性质

• 熔点：
  98-99 °C
• 沸点：
  590.1±45.0 °C(Predicted)
• 密度：
  1.145±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  2.5
• 重原子数：
  26
• 可旋转键数：
  10
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.526
• 拓扑面积：
  105
• 氢给体数：
  3
• 氢受体数：
  5

安全信息

• WGK Germany：
  3
• 海关编码：
  2924299090

反应信息

• 作为反应物：
  描述：

  Z-Val-Leu-OH 在 palladium on activated charcoal 盐酸 、 氢气 、 三乙胺 作用下， 以 甲醇 为溶剂， 20.0 ℃ 、500.0 kPa 条件下， 反应 72.5h， 生成 cyclo-Leu-Val
  参考文献：
  名称：

  Structures, Sensory Activity, and Dose/Response Functions of 2,5-Diketopiperazines in Roasted Cocoa Nibs (Theobroma cacao)

  摘要：

  The taste compounds inducing the blood-like, metallic bitter taste sensation reported recently for a dichloromethane extract prepared from roasted cocoa nibs were identified as a series of 25 diketopiperazines by means of HPLC degustation, LC-MS/MS, and independent synthesis. Among these 25 compounds, 13 cis-configured diketopiperazines, namely, CYCIO(L-IIe-L-Phe), CYCIO(L-Val-L-Leu), CYCIO(L-Pro-L-Pro), CYCIO(L-IIe-L-Pro), CYCIO(L-Val-L-Tyr), CYCIO(L-Ala-L-Tyr), CYCIO(L-Phe-L-Ser), CYCIO(L-Ala-L-IIe), CYCIO(L-LeU-L-Phe), cyclo(L-Pro-L-Val), CYCIO(L-Pro-L-Thr), CYCIO(L-PrO-L-Tyr), and CYCIO(L-Val-L-Val) were identified for the first time in cocoa. In addition, the taste recognition thresholds for the metallic as well as the bitter taste of the diketopiperazines were determined, and after quantitative analysis by using two diastereomeric diketopiperazines as the internal standards, the sensory impact of the diketopiperazines was evaluated on the basis of their close-over-threshold (DoT) factors calculated as the ratio of the concentration and the threshold concentration of a compound. These data revealed DoT factors above 1.0 exclusively for cis-cyclo(L-Pro-L-Val), cis-cyclo(L-Val-L-Leu), cis-cyclo(L-Ala-L-IIe), cis-cyclo(L-Ala-L-Leu), and cis-cyclo(L-IIe-L-Pro), whereas all of the other diketopiperazines were present below their individual bitter taste threshold concentrations and should therefore not contribute to the cocoa taste. Because the DoT factors do not consider the nonlinear relationship between the concentration and gustatory response of an individual compound, we, for the first time, report on the recording of dose/response functions describing the human bitter taste perception of diketopiperazines more precisely.

  DOI：

  10.1021/jf051313m
• 作为产物：
  描述：

  Z-Val-Leu-OMe 在 lithium hydroxide 作用下， 以 四氢呋喃 、 水 为溶剂， 反应 5.0h， 以93%的产率得到Z-Val-Leu-OH
  参考文献：
  名称：

  尿嘧啶肽连接与可裂解和树脂连接的胺衍生的无痕转向诱导剂辅助的肽大环化。

  摘要：

  描述了一种多组分方法，该方法使得能够安装促进短和中等大小的寡肽的大环化的转角诱导部分。该策略包括在醛和酸或光不稳定胺存在下，肽羧酸和异氰肽的Ugi连接，然后环化和裂解主链N-取代基以提供典型的环肽。使用Rink酰胺树脂在固相上实施该方法导致了一类新的主链酰胺连接基策略。

  DOI：

  10.1021/acs.orglett.7b01761

文献信息

• Design and synthesis of new tripeptide-type SARS-CoV 3CL protease inhibitors containing an electrophilic arylketone moiety
  作者：Sho Konno、Pillaiyar Thanigaimalai、Takehito Yamamoto、Kiyohiko Nakada、Rie Kakiuchi、Kentaro Takayama、Yuri Yamazaki、Fumika Yakushiji、Kenichi Akaji、Yoshiaki Kiso、Yuko Kawasaki、Shen-En Chen、Ernesto Freire、Yoshio Hayashi

  DOI：10.1016/j.bmc.2012.11.017

  日期：2013.1

  We describe here the design, synthesis and biological evaluation of a series of molecules toward the development of novel peptidomimetic inhibitors of SARS-CoV 3CLpro. A docking study involving binding between the initial lead compound 1 and the SARS-CoV 3CLpro motivated the replacement of a thiazole with a benzothiazole unit as a warhead moiety at the P1′ site. This modification led to the identification

  我们在此描述了一系列分子的设计、合成和生物学评估，以开发新型 SARS-CoV 3CL pro的拟肽抑制剂。一项涉及初始先导化合物1与 SARS-CoV 3CL pro之间结合的对接研究促使用苯并噻唑单元取代噻唑作为 P1' 位点的弹头部分。这种修饰导致鉴定出更有效的衍生物，包括2i、2k、2m、2o和2p，其 IC 50或K i值在亚微摩尔至纳摩尔范围内。特别是，化合物2i和2p表现出最有效的抑制活性，K i值分别为 4.1 和 3.1 nM。通过这一过程鉴定出的拟肽化合物对于开发针对 SARS 的潜在治疗剂来说是有吸引力的线索。对SARS-CoV 3CL pro具有强效抑制活性的拟肽的结构要求可概括如下：（i）S1'位存在苯并噻唑弹头；(ii) S1位点环状内酰胺的氢键结合能力；(iii) S2 位点的适当立体化学和疏水部分大小，以及 (iv) S4 位点的苯氧基乙酰基部分呈现的独特折叠构象。
• Synthesis and Antimalarial Bioassay of Quinine - Peptide Conjugates
  作者：Siva S. Panda、Mohamed A. Ibrahim、Hasan Küçükbay、Marvin J. Meyers、Francis M. Sverdrup、Said A. El-Feky、Alan R. Katritzky

  DOI：10.1111/cbdd.12134

  日期：2013.10

  Amino acid and peptide conjugates of quinine were synthesized using microwave irradiation in 52–95% yields using benzotriazole methodology. The majority of these conjugates retain in vitro antimalarial activity with IC50 values below 100 nm, similar to quinine.

  使用苯并三唑方法，使用微波辐射以52–95％的产率合成奎宁的氨基酸和肽共轭物。这些结合物中的大多数保留体外抗疟活性，IC 50值低于100 n m，类似于奎宁。
• Elektrochemische Decarboxylierung vonL.-Threonin- und Oligopeptid-Derivaten unter Bildung vonN-Acyl-N, O-acetalen: Herstellung von Oligopeptiden mit Carboxamid-oder Phosphonat-C-Terminus
  作者：Dieter Seebach、Roland Charczuk、Christian Gerber、Philippe Renaud、Heinz Berner、Helmut Schneider

  DOI：10.1002/hlca.19890720302

  日期：1989.5.3

  Electrochemical Decarboxylation of L-Threonine and Oligopeptide Derivatives with Formation of N-Acyl-N, O-acetals: Preparation of Oligopeptides with Amide or Phophonate C-Terminus

  L-苏氨酸和寡肽衍生物的电化学脱羧反应，形成N-酰基-N，O-乙缩醛：酰胺或膦C-末端制备寡肽
• An Efficient and Epimerization Free Synthesis of C-Terminal Arylamides Derived from α-Amino Acids and Peptide Acids via T3P Activation
  作者：Chilakapati Madhu、Panguluri NageswaraRao、N. Narendra、Vommina V. Sureshbabu

  DOI：10.1007/s10989-013-9383-7

  日期：2014.9

  A high yield and rapid synthesis of enantiomerically pure N α-protected amino/peptide acid arylamides using n-propylphosphonic anhydride (T3P) in presence of N-methylmorpholine is described. The generality of the reaction has been studied for various N α-protected amino acids with diverse range of aromatic amines and coumarin derivatives.

  高产量和对映体纯快速合成Ñ α -保护的氨基/肽使用酸芳基酰胺Ñ在存在-propylphosphonic酸酐（T3P）ñ甲基吗啉进行说明。该反应的一般性已经研究了各种Ñ α -保护的氨基酸与不同范围的芳族胺和香豆素衍生物。
• Optimization and Anti-Cancer Properties of Fluoromethylketones as Covalent Inhibitors for Ubiquitin C-Terminal Hydrolase L1
  作者：Aaron D. Krabill、Hao Chen、Sajjad Hussain、Chad S. Hewitt、Ryan D. Imhoff、Christine S. Muli、Chittaranjan Das、Paul J. Galardy、Michael K. Wendt、Daniel P. Flaherty

  DOI：10.3390/molecules26051227

  日期：——

  this end a study was carried out to fully characterize and optimize the irreversible covalent UCHL1 inhibitor VAEFMK. Structure-activity relationship studies identified modifications to improve activity versus the target and a full cellular characterization was carried out for the first time with this scaffold. The studies produced a new inhibitor, 34, with an IC50 value of 7.7 µM against UCHL1 and no

  去泛素化酶 (DUB) UCHL1 与多种疾病状态有关，包括神经退行性疾病和癌症。然而，缺乏高质量的探针分子来更好地了解 UCHL1 生物学。为此，我们进行了一项研究，以全面表征和优化不可逆共价 UCHL1 抑制剂 VAEFMK。结构-活性关系研究确定了修饰以提高相对于靶标的活性，并且首次使用该支架进行了完整的细胞表征。研究产生了一种新的抑制剂34，其针对 UCHL1 的 IC 50值为 7.7 µM，与最接近的相关 DUB UCHL3 相比没有可观察到的活性。该分子还能够选择性抑制细胞中的 UCHL1，并且没有表现出任何明显的脱靶毒性。最后，该分子被用于初步探针研究，以评估 UCHL1 在骨髓瘤细胞增殖和小细胞肺癌细胞迁移行为中的作用，从而使34成为用于 UCHL1 生物学评估的新工具。