NVOC-Leu-OH

• 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: NVOC-Leu-OH
• 英文别名: α-NVOC-leucine；(2S)-2-[(4,5-dimethoxy-2-nitrophenyl)methoxycarbonylamino]-4-methylpentanoic acid
• 化学式: C₁₆H₂₂N₂O₈
• 分子量: 370.359
• InChiKey: JAWMTSJNKOHYFQ-NSHDSACASA-N

计算性质

• 辛醇/水分配系数(LogP)：
  2.5
• 重原子数：
  26
• 可旋转键数：
  9
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.5
• 拓扑面积：
  140
• 氢给体数：
  2
• 氢受体数：
  8

反应信息

• 作为反应物：
  描述：

  三氟乙酸五氟苯酯 、 NVOC-Leu-OH 在 吡啶 作用下， 以 N,N-二甲基甲酰胺 为溶剂， 反应 1.0h， 以93%的产率得到perfluorophenyl (((4,5-dimethoxy-2-nitrobenzyl)oxy)carbonyl)-L-leucinate
  参考文献：
  名称：

  Synthesis of Pentafluorophenyl Esters of Nitroveratryloxycarbonyl-Protected Amino Acids

  摘要：

  为了在玻璃芯片上高效合成肽，通过使用五氟苯基三氟乙酸盐合成了20种硝基藜芦氧羰基（NVOC）保护的氨基酸的五氟苯基（Pfp）酯。简单的纯化步骤提供了中等至高产率。每个氨基酸在玻璃表面上的第一次加载时间为30-60分钟。NVOC基团的紫外光裂解在10分钟内完成。

  DOI：

  10.1055/s-0029-1218369
• 作为产物：
  描述：

  NVOC-Leu-OAll 在 RhCl(PPh₃)3 作用下， 以 乙醇 、 水 为溶剂， 反应 24.0h， 以73%的产率得到NVOC-Leu-OH
  参考文献：
  名称：

  固相合成中的顺序可光裂解的保护基。

  摘要：

  [反应：见正文]使用光不稳定的连接基和保护基团开发了顺序的固相肽合成方法。利用叔丁基酮衍生的连接基（对305 nm的辐射敏感）和硝基过碳酰氧羰基（NVOC）基团（对360 nm敏感）之间的色序不稳定性来制备亮氨酸-脑啡肽，总产率为55％。通过避免使用常见的脱保护试剂（例如三氟乙酸或哌啶），该新策略允许在基本中性的介质中制备肽。

  DOI：

  10.1021/ol027454g

文献信息

• Automated Maskless Photolithography System for Peptide Microarray Synthesis on a Chip
  作者：Dong-Sik Shin、Kook-Nyung Lee、Byung-Wook Yoo、Jaehi Kim、Mira Kim、Yong-Kweon Kim、Yoon-Sik Lee

  DOI：10.1021/cc100009g

  日期：2010.7.12

  Maskless photolithographic peptide synthesis was performed on a glass chip using an automated peptide array synthesizer system. The peptide array synthesizer was built in a closed box, which contained optical and fluidic systems. The conditions for peptide synthesis were fully controlled by a computer program. For the peptide synthesis on a glass chip, 20 NVOC-protected amino acids were synthesized. The coupling efficiencies of two model peptide sequences were examined on ACA/APTS and PEG/CHI/GPTS chips. PEG/CHI/GPIS chip gave higher average stepwise yields of GIYWHHY (94%) and YIYGSFK (98%) than those of ACA/APTS chip. To quantify peptide-protein binding affinity, HPQ- or HPM-containing pentapeptides were synthesized on a PEG/CHI/GPTS chip and the binding event of Cy3 labeled-streptavidin was quantified. The peptide sequence of IQHPQ showed highest binding affinity with Cy3 labeled-streptavidin. The results demonstrated that the photolithographic peptide array synthesis method efficiently quantified the binding activities of protein-peptide interactions and it can be used for additional biological assay applications.
• Preparation of Translationally Competent tRNA by Direct Chemical Acylation
  作者：Noah H. Duffy、Dennis A. Dougherty

  DOI：10.1021/ol101408f

  日期：2010.9.3

  Nonsense codon suppression for unnatural amino acid incorporation requires the preparation of a suppressor aminoacyl-tRNA. Chemical acylation strategies are general but inefficient and arduous. A recent report (J. Am. Chem. Soc. 2007, 129, 15848) showed acylation of RNA mediated by lanthanum(III) using amino acid phosphate esters. The successful implementation of this methodology to full-length suppressor tRNA is described, and it is shown that the derived aminoacyl-tRNA is translationally competent in Xenopus oocytes.