| 102837-30-9

• 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
• CAS: 102837-30-9
• 化学式: C₂HF₃O₂*C₈H₁₈N₂O₂
• 分子量: 288.267
• InChiKey: FLMBABRZZFEKGF-FJXQXJEOSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  1.01
• 重原子数：
  19.0
• 可旋转键数：
  4.0
• 环数：
  0.0
• sp3杂化的碳原子比例：
  0.8
• 拓扑面积：
  92.86
• 氢给体数：
  2.0
• 氢受体数：
  4.0

反应信息

• 作为反应物：
  描述：

  在 lithium aluminium tetrahydride 、 三乙胺 作用下， 以 四氢呋喃 、 二氯甲烷 为溶剂， 反应 1.0h， 生成 (S)-N-(4-methyl-1-oxopentan-2-yl)cinnamamide
  参考文献：
  名称：

  探测弱酸性前亲核试剂中的α-氨基醛类化合物：Brønsted碱催化的对映选择性迈克尔加成反应可直接进入季铵化α-氨基醛类化合物

  摘要：

  α-氨基醛很容易发生1,2-加成反应，并且在碱性条件下具有相对较低的稳定性，这在很大程度上阻止了它们在不对称催化领域用作亲核试剂，特别是在生产季α-氨基醛方面。本文证明了α-氨基醛的化学性质可能超出了这些限制，方法是记录α-支链α-氨基醛与硝基烯烃的首次直接α-烷基化反应。该反应产生具有多达非对映和对映选择性的稠密的官能化产物，该产物带有多达两个的四级和三级邻位立体中心。DFT建模提出了这样的建议，即在NH基团与起始α-氨基醛中的羰基氧原子之间的分子内氢键是反应立体控制的关键。

  DOI：

  10.1002/chem.202004468
• 作为产物：
  描述：

  N-(叔丁氧基羰基)-L-亮氨酸-N′-甲氧基-N′-甲酰胺 在 三氟乙酸 作用下， 反应 0.5h， 生成
  参考文献：
  名称：

  Synthesis and biological activities of some pseudo-peptide analogs of tetragastrin: the importance of the peptide backbone

  摘要：

  Pseudo-peptide analogues of the C-terminal tetrapeptide of gastrin, in which a peptide bond has been replaced by a CH2-NH bond, i.e. (tert-butyloxycarbonyl)-L-tryptophyl-psi (CH2-NH)-L-leucyl-L-aspartyl-L-phenylalanine amide (8), (tert-butyloxycarbonyl)-L-tryptophyl-L-leucyl-psi (CH2-NH)-L-aspartyl-L-phenylalanine amide (13), (tert-butyloxycarbonyl)-L-tryptophyl-L-leucyl-L-aspartyl-psi (CH2NH)-L-phenylalanine amide (20), were synthesized. The pseudo-peptides 8 and 13 were shown to have the same affinity as (tert-butyloxycarbonyl)-L-tryptophyl-L-leucyl-L-aspartyl-L-phenylalanine amide (21) for the gastrin receptor on isolated mucosal cells. The pseudo-peptide 20 exhibited lower affinity (IC50 congruent to 10(-5) M). The biological activity of these pseudo-peptides was studied on acid secretion in the anesthetized rat. Compound 8 stimulated acid secretion, identically with that of 21. Compound 13 did not exhibit any agonist activity but was able to antagonize the action of gastrin (ED50 = 0.3 mg/kg). Compound 20 did not show any agonist activity but was able to inhibit gastrin-induced acid secretion, with lower potency (ED50 = 15 mg/kg). The importance of the peptide bonds in the mode of action of gastrin is discussed, and a hypothetical approach of the mechanism of action is presented.

  DOI：

  10.1021/jm00150a020

文献信息

• Preliminary Studies of New Proteasome Inhibitors in the Tumor Targeting Approach: Synthesis and in Vitro Cytotoxicity
  作者：Magali Vivier、Anne-Sophie Jarrousse、Bernadette Bouchon、Marie-Josephe Galmier、Philippe Auzeloux、Jacques Sauzieres、Jean-Claude Madelmont

  DOI：10.1021/jm050181l

  日期：2005.10.1

  The proteasome is a multicatalytic protease that plays a critical role in the cell. The control of proteasomes could, thus, provide a weapon for the treatment of cancer. Therefore, we have synthesized six new peptide aldehyde inhibitors of the proteasome linked to the N-(2-diethylaminoethyl)benzamide (BZA-CO) structure, in order to target the cytotoxic activity to malignant melanoma cells. Biological studies demonstrated the influence of length and composition of the amino acid chain on the cytotoxicity of our compounds. Among them, compound 19 presents the highest cytotoxicity (IC50 = 0.64 +/- 0.07 mu mol): this cytotoxicity was maintained in the presence of BZA-CO but decreased 8-fold compared to the control MG132. Fluorescence activated cell sorter (FACS) and cytotoxic activity analysis demonstrated the selectivity of compound 19 for melanoma cells. Finally, western blottings of ubiquitinated proteins in IPC227F cells as well as proteasome assays confirmed that the cytotoxicity was linked to an inhibition of the proteasome activity.