N₃-Phe-Phe(4-CH₂NHBoc)-Leu-NHNH₂ | 1421639-96-4

• 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: N₃-Phe-Phe(4-CH₂NHBoc)-Leu-NHNH₂
• CAS: 1421639-96-4
• 化学式: C₃₀H₄₂N₈O₅
• 分子量: 594.714
• InChiKey: CYZZQJCUUBSCLA-SDHOMARFSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  3.18
• 重原子数：
  43.0
• 可旋转键数：
  14.0
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.47
• 拓扑面积：
  200.41
• 氢给体数：
  5.0
• 氢受体数：
  7.0

反应信息

• 作为反应物：
  描述：

  N₃-Phe-Phe(4-CH₂NHBoc)-Leu-NHNH₂ 在 盐酸 、 亚硝酸特丁酯 、 N,N-二异丙基乙胺 作用下， 以 1,4-二氧六环 、 二氯甲烷 、 N,N-二甲基甲酰胺 为溶剂， 反应 3.0h， 生成
  参考文献：
  名称：

  Incorporation of Non-natural Amino Acids Improves Cell Permeability and Potency of Specific Inhibitors of Proteasome Trypsin-like Sites

  摘要：

  Proteasomes degrade the majority of proteins in mammalian cells by a concerted action of three distinct pairs of active sites. The chymotrypsin-like sites are targets of antimyeloma agents bortezomib and carfilzomib. Inhibitors of the trypsin-like site sensitize multiple myeloma cells to these agents. Here we describe systematic effort to develop inhibitors with improved potency and cell permeability, yielding azido-Phe-Leu-Leu-4-aminomethyl-Phe-methyl vinyl sulfone (4a, LU-102), and a fluorescent activity-based probe for this site. X-ray structures of 4a and related inhibitors complexed with yeast proteasomes revealed the structural basis for specificity. Nontoxic to myeloma cells when used as a single agent, 4a sensitized them to bortezomib and carfilzomib. This sensitizing effect was much stronger than the synergistic effects of histone acetylase inhibitors or additive effects of doxorubicin and dexamethasone, raising the possibility that cornbinations of inhibitors of the trypsin-like site with bortezomib or carfilzomib would have stronger antincoplastic activity than combinations currently used clinically.

  DOI：

  10.1021/jm3016987
• 作为产物：
  描述：

  L-苯丙氨酸 在 硫酸 、 sodium carbonate 、 O-(1H-benzotriazol-1-yl)-N,N,N',N'-tetramethyluronium hexafluorophosphate 、 一水合肼 、 N,N-二异丙基乙胺 、 三氟乙酸 、 sodium hydroxide 作用下， 以 四氢呋喃 、 1,4-二氧六环 、 甲醇 、 乙醇 、 二氯甲烷 、 水 为溶剂， 反应 15.83h， 生成 N₃-Phe-Phe(4-CH₂NHBoc)-Leu-NHNH₂
  参考文献：
  名称：

  Incorporation of Non-natural Amino Acids Improves Cell Permeability and Potency of Specific Inhibitors of Proteasome Trypsin-like Sites

  摘要：

  Proteasomes degrade the majority of proteins in mammalian cells by a concerted action of three distinct pairs of active sites. The chymotrypsin-like sites are targets of antimyeloma agents bortezomib and carfilzomib. Inhibitors of the trypsin-like site sensitize multiple myeloma cells to these agents. Here we describe systematic effort to develop inhibitors with improved potency and cell permeability, yielding azido-Phe-Leu-Leu-4-aminomethyl-Phe-methyl vinyl sulfone (4a, LU-102), and a fluorescent activity-based probe for this site. X-ray structures of 4a and related inhibitors complexed with yeast proteasomes revealed the structural basis for specificity. Nontoxic to myeloma cells when used as a single agent, 4a sensitized them to bortezomib and carfilzomib. This sensitizing effect was much stronger than the synergistic effects of histone acetylase inhibitors or additive effects of doxorubicin and dexamethasone, raising the possibility that cornbinations of inhibitors of the trypsin-like site with bortezomib or carfilzomib would have stronger antincoplastic activity than combinations currently used clinically.

  DOI：

  10.1021/jm3016987

文献信息

• Structure-Based Design of Inhibitors Selective for Human Proteasome β2c or β2i Subunits
  作者：Bo-Tao Xin、Eva M. Huber、Gerjan de Bruin、Wolfgang Heinemeyer、Elmer Maurits、Christofer Espinal、Yimeng Du、Marissa Janssens、Emily S. Weyburne、Alexei F. Kisselev、Bogdan I. Florea、Christoph Driessen、Gijsbert A. van der Marel、Michael Groll、Herman S. Overkleeft

  DOI：10.1021/acs.jmedchem.8b01884

  日期：2019.2.14

  Subunit-selective proteasome inhibitors are valuable tools to assess the biological and medicinal relevance of individual proteasome active sites. Whereas the inhibitors for the β1c, β1i, β5c, and β5i subunits exploit the differences in the substrate-binding channels identified by X-ray crystallography, compounds selectively targeting β2c or β2i could not yet be rationally designed because of the high structural

  亚单位选择性蛋白酶体抑制剂是评估单个蛋白酶体活性位点生物学和医学相关性的有价值的工具。尽管β1c，β1i，β5c和β5i亚基的抑制剂利用了X射线晶体学鉴定的底物结合通道的差异，但由于这些化合物的高度结构相似性，因此尚无法合理设计选择性靶向β2c或β2i的​​化合物两个亚单位。在这里，我们报告了一个化合物库的开发，化学合成和生物学筛选，该过程导致了对β2c和β2i选择性化合物LU-002c的鉴定（4； IC50β2c：8 nM，IC50β2i/β2c：40-倍数）和LU-002i（5; IC50β2i：220 nM，IC50β2c/β2i：45倍）。具有β2人源化酵母蛋白酶体的共晶体结构可可视化对于亚基特异性至关重要的蛋白质-配体相互作用。总而言之，有机合成，基于活性的蛋白质谱分析，酵母诱变和结构生物学使我们能够破译β2底物结合通道的显着差异，并完成了一组亚基选择性蛋白酶体抑制剂的研究。