Z-Val-Leu-OMe | 4817-93-0

• 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-OMe
• 英文别名: Cbz-Val-Leu-OMe；(S)-methyl 2-((S)-2-(((benzyloxy)carbonyl)amino)-3-methylbutanamido)-4-methylpentanoate；methyl (2S)-4-methyl-2-[[(2S)-3-methyl-2-(phenylmethoxycarbonylamino)butanoyl]amino]pentanoate
• CAS: 4817-93-0
• 化学式: C₂₀H₃₀N₂O₅
• 分子量: 378.469
• InChiKey: PKLDYUWADSNDGB-IRXDYDNUSA-N

物化性质

• 熔点：
  101-102 °C
• 沸点：
  536.1±40.0 °C(Predicted)
• 密度：
  1.101±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  3.8
• 重原子数：
  27
• 可旋转键数：
  11
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.55
• 拓扑面积：
  93.7
• 氢给体数：
  2
• 氢受体数：
  5

反应信息

• 作为反应物：
  描述：

  Z-Val-Leu-OMe 在 palladium on activated charcoal 氢气 、 三乙胺 作用下， 以 甲醇 为溶剂， 反应 48.5h， 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：

  L-亮氨酸叔丁酯盐酸盐 在 盐酸 、 1-羟基苯并三唑 、 1-(3-二甲基氨基丙基)-3-乙基碳二亚胺 作用下， 生成 Z-Val-Leu-OMe
  参考文献：
  名称：

  蛋白酶[CPC（蛋白酶）]的碳水化合物蛋白质结合物催化形成肽键

  摘要：

  本文介绍了蛋白酶[CPC（proteases）]的碳水化合物蛋白质共轭物在肽键催化形成中的用途。我们发现CPC（蛋白酶）在有机溶剂中稳定，并在真正的催化水平下运行，并证明了可实现聚合肽合成的一系列基础转化。

  DOI：

  10.1016/0040-4039(91)80417-5

文献信息

• 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。
• Peptide Macrocyclization Assisted by Traceless Turn Inducers Derived from Ugi Peptide Ligation with Cleavable and Resin-Linked Amines
  作者：Alfredo R. Puentes、Micjel C. Morejón、Daniel G. Rivera、Ludger A. Wessjohann

  DOI：10.1021/acs.orglett.7b01761

  日期：2017.8.4

  multicomponent approach enabling the installation of turn-inducing moieties that facilitate the macrocyclization of short and medium-size oligopeptides is described. The strategy comprises the Ugi ligation of peptide carboxylic acids and isocyanopeptides in the presence of aldehydes and acid or photolabile amines followed by cyclization and cleavage of the backbone N-substituents to render canonical

  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。
• A Quick Route to Multiple Highly Potent SARS‐CoV‐2 Main Protease Inhibitors**
  作者：Kai S. Yang、Xinyu R. Ma、Yuying Ma、Yugendar R. Alugubelli、Danielle A. Scott、Erol C. Vatansever、Aleksandra K. Drelich、Banumathi Sankaran、Zhi Z. Geng、Lauren R. Blankenship、Hannah E. Ward、Yan J. Sheng、Jason C. Hsu、Kaci C. Kratch、Baoyu Zhao、Hamed S. Hayatshahi、Jin Liu、Pingwei Li、Carol A. Fierke、Chien‐Te K. Tseng、Shiqing Xu、Wenshe Ray Liu

  DOI：10.1002/cmdc.202000924

  日期：2021.3.18

  to seven inhibitors indicated both formation of a covalent bond with C145 and structural rearrangement from the apoenzyme to accommodate the inhibitors. Virus inhibition assays revealed that several inhibitors have high potency in inhibiting the SARS‐CoV‐2‐induced cytopathogenic effect in both Vero E6 and A549/ACE2 cells. Two inhibitors, MPI5 and MPI8, completely prevented the SARS‐CoV‐2‐induced cytopathogenic

  COVID-19 病原体 SARS-CoV-2 需要其主要蛋白酶 (SC2M Pro ) 消化其两个翻译的长多肽，以形成许多对病毒复制和发病机制至关重要的成熟蛋白质。抑制这一重要的蛋白水解过程可有效防止病毒在受感染的细胞中复制，因此提供了一种潜在的 COVID-19 治疗选择。以以往关于SARS-CoV-1主要蛋白酶（SC1M Pro）的药物化学研究为指导，我们设计并合成了一系列含有β-（S-2-oxopyrrolidin-3-yl）-丙氨酸（Opal）的SC2M Pro抑制剂用于与 SC2M Pro活性位点半胱氨酸 C145形成可逆共价键。所有抑制剂都显示出高效力K i值等于或低于 100 nM。最有效的化合物 MPI3 的K i值为 8.3 nM。SC2M Pro的晶体学分析与七种抑制剂结合表明与C145形成共价键和脱辅基酶的结构重排以适应抑制剂。病毒抑制试验表明，几种抑制剂在抑制 Vero
• Kinetics of the alkaline hydrolysis of several n-benzyloxycarbonyldipeptide methyl and ethyl esters
  作者：D.A. Hoogwater、M. Peereboom

  DOI：10.1016/s0040-4020(01)87839-x

  日期：1990.1

  The reaction rates of the alkaline hydrolysis of synthesized -protected dipeptide methyl and ethyl esters were studied systematically. From the kinetic data the energies of activation, the pre-exponential factors and the reference values at 40°C were calculated. The rate of hydrolysis shows to be strongly dependent on the C-terminal amino acid in the sequence Gly ⪢ Ala/Met/Phe ⪢ Leu ⪢ Val/Pro. Surprisingly

  系统地研究了合成保护的二肽甲酯和乙酯的碱水解反应速率。从动力学数据计算出活化能，指数前因子和40°C时的参考值。水解速率显示出强烈依赖于序列Gly⪢Ala / Met / Phe⪢Leu⪢Val / Pro的C末端氨基酸。令人惊讶地，N-末端氨基酸也发挥作用，但是顺序不同。N端苯丙氨酸尤其显示出相对加速作用。值得注意的是，与相应的甲酯/甲醇/水相比，乙醇/水中的含甘氨酸的二肽乙酯的酯水解明显更快。
• Amino acids and peptides. XI. Synthesis of attractant and repellent peptides for Aedes aegypti and Blattella germanica.
  作者：YOSHIO OKADA、SHIN IGUCHI、TAKAAKI HIRAI、YOSHITAKA GOTO、MASAMI YAGYU、HARUAKI YAJIMA

  DOI：10.1248/cpb.32.4608

  日期：——

  Z-Gly-Val-Ser-Phe-Val-Leu-OMe and related peptides were synthesized by the conventional solution method and their attractant and repellent activities for Aedes aegypti (mosquito) and Blattella germanica (cockroach) were examined. Z-Val-Leu-OMe exhibited potent repellent activity against not only Aedes aegypti but also Blattella germanica.

  Z-Gly-Val-Ser-Phe-Val-Leu-OMe 及相关肽通过传统的溶液法合成，并对其对埃及伊蚊（Aedes aegypti）和德国小蠊（Blattella germanica）的吸引和排斥活性进行了检验。Z-Val-Leu-OMe 对埃及伊蚊和德国小蠊均表现出强效的排斥活性。