| 1569905-72-1

• 分子结构分类: 有机化合物 - 苯类化合物 - 芘
• CAS: 1569905-72-1
• 化学式: C₂₇H₂₉NO₄
• 分子量: 431.532
• InChiKey: TXPDPEKGDHDOLS-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  6.06
• 重原子数：
  32.0
• 可旋转键数：
  7.0
• 环数：
  4.0
• sp3杂化的碳原子比例：
  0.33
• 拓扑面积：
  75.63
• 氢给体数：
  2.0
• 氢受体数：
  3.0

反应信息

• 作为反应物：
  描述：

  在 正丁基锂 、 双(三甲基硅烷基)氨基钾 、 三乙胺 作用下， 以 四氢呋喃 、 正己烷 、 甲苯 为溶剂， 反应 1.5h， 生成 tert-butyl N-[3-(1-{3-[(4R)-4-benzyl-2-oxo-1,3-oxazolidin-3-yl]-3-oxopropyl}pyren-2-yl)propyl]carbamate
  参考文献：
  名称：

  A Palladium-Catalyzed Domino Reaction as Key Step for the Synthesis of Functionalized Aromatic Amino Acids

  摘要：

  A variety of substituted aromatic systems are synthesized by the Catellani reaction. These are used as precursors for novel amino acids with a basic side chain.

  DOI：

  10.1055/s-0033-1339892
• 作为产物：
  描述：

  在 sodium hydroxide 作用下， 以 甲醇 、 水 为溶剂， 生成
  参考文献：
  名称：

  A Palladium-Catalyzed Domino Reaction as Key Step for the Synthesis of Functionalized Aromatic Amino Acids

  摘要：

  A variety of substituted aromatic systems are synthesized by the Catellani reaction. These are used as precursors for novel amino acids with a basic side chain.

  DOI：

  10.1055/s-0033-1339892

文献信息

• Peptidomimetics That Inhibit and Partially Reverse the Aggregation of Aβ_1–42
  作者：Tina Stark、Tobias Lieblein、Maximilian Pohland、Elisabeth Kalden、Petra Freund、René Zangl、Rekha Grewal、Mike Heilemann、Gunter P. Eckert、Nina Morgner、Michael W. Göbel

  DOI：10.1021/acs.biochem.7b00223

  日期：2017.9.12

  The peptide sequence KLVFF resembles the hydrophobic core of the Aβ peptide known to form amyloid plaques in Alzheimer’s disease. Starting from its retro-inverso peptide, we have synthesized three generations of peptidomimetics. Step by step natural amino acids have been replaced by aromatic building blocks accessible from the Pd-catalyzed Catellani reaction. The final compound 18 is stable against proteolytic decay and largely prevents the aggregation of Aβ1–42 over extended periods of time. The activity of the new inhibitors was tested first by fluorescence correlation spectroscopy. For closer examination of compound 18, additional techniques were also applied: laser-induced liquid bead ion desorption mass spectrometry, confocal laser scanning microscopy, thioflavin T fluorescence, and gel electrophoresis. Compound 18 not only retards the aggregation of chemically synthesized Aβ but also can partially dissolve the oligomeric structures. Thioflavin binding mature fibrils, however, seem to resist the inhibitor.

  肽序列 KLVFF 与已知在阿尔茨海默病中形成淀粉样斑块的 Aβ 肽的疏水核心相似。从它的逆向肽开始，我们合成了三代拟肽物。天然氨基酸逐步被钯催化的卡泰拉尼（Catellani）反应可获得的芳香族结构单元所取代。最终的化合物 18 能稳定地抵抗蛋白分解，并在很大程度上长时间阻止 Aβ1-42 的聚集。新抑制剂的活性首先通过荧光相关光谱进行了测试。为了更仔细地检测化合物 18，还采用了其他技术：激光诱导液珠离子解吸质谱法、激光共聚焦扫描显微镜、硫黄素 T 荧光法和凝胶电泳法。化合物 18 不仅能延缓化学合成 Aβ 的聚集，还能部分溶解其低聚结构。不过，与硫黄结合的成熟纤维似乎对抑制剂有抵抗力。