N-(tert-butyl)-2-chloro-N-(4-fluorobenzyl)acetamide | 1274573-36-2

• 分子结构分类: 有机化合物 - 苯类化合物 - 苯和取代衍生物
• 英文名称: N-(tert-butyl)-2-chloro-N-(4-fluorobenzyl)acetamide
• CAS: 1274573-36-2
• 化学式: C₁₃H₁₇ClFNO
• 分子量: 257.735
• InChiKey: DHTLMWBOWXJLJK-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  3.19
• 重原子数：
  17.0
• 可旋转键数：
  3.0
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.46
• 拓扑面积：
  20.31
• 氢给体数：
  0.0
• 氢受体数：
  1.0

反应信息

• 作为反应物：
  描述：

  N-(tert-butyl)-2-chloro-N-(4-fluorobenzyl)acetamide 在 1-金刚烷甲酸 、 C₇₁H₁₀₈NO₈P 、 caesium carbonate 、 bis(dibenzylideneacetone)-palladium⁽⁰⁾ 作用下， 以 甲苯 为溶剂， 以95%的产率得到(S)-1-(tert-butyl)-4-(4-fluorophenyl)azetidin-2-one
  参考文献：
  名称：

  通过对映选择性钯（0）催化的C（sp3）获得β-内酰胺？H烷基化

  摘要：

  β-内酰胺由于具有广泛的生物学活性以及易于发生开环反应，因此是非常重要的结构基序。过渡金属催化的CH功能化已成为实现非常规高效断开连接的策略。与Pd 0催化的CH官能化用于芳基-芳基偶联的显着进展相反，涉及形成饱和C（sp 3）C（sp 3）键的相关反应是难以捉摸的。这里报告的是一个不对称的C使用容易获得的氯乙酰胺底物对β-内酰胺进行H官能化方法。这种转变的重要方面是挑战四元环的C（sp 3）C（sp 3）和应变消除。通常，使用大体积的他达酚亚磷酰胺配体与金刚烷基羧酸作为助催化剂，可以以优异的收率和对映选择性形成β-内酰胺。

  DOI：

  10.1002/anie.201405508
• 作为产物：
  描述：

  N-(4-氟苄基)-2-甲基-2-丙胺 、 氯乙酰氯 以 二氯甲烷 为溶剂， 反应 3.5h， 生成 N-(tert-butyl)-2-chloro-N-(4-fluorobenzyl)acetamide
  参考文献：
  名称：

  通过对映选择性钯（0）催化的C（sp3）获得β-内酰胺？H烷基化

  摘要：

  β-内酰胺由于具有广泛的生物学活性以及易于发生开环反应，因此是非常重要的结构基序。过渡金属催化的CH功能化已成为实现非常规高效断开连接的策略。与Pd 0催化的CH官能化用于芳基-芳基偶联的显着进展相反，涉及形成饱和C（sp 3）C（sp 3）键的相关反应是难以捉摸的。这里报告的是一个不对称的C使用容易获得的氯乙酰胺底物对β-内酰胺进行H官能化方法。这种转变的重要方面是挑战四元环的C（sp 3）C（sp 3）和应变消除。通常，使用大体积的他达酚亚磷酰胺配体与金刚烷基羧酸作为助催化剂，可以以优异的收率和对映选择性形成β-内酰胺。

  DOI：

  10.1002/anie.201405508

文献信息

• Structural and biochemical study on the inhibitory activity of derivatives of 5-nitro-furan-2-carboxylic acid for RNase H function of HIV-1 reverse transcriptase
  作者：Hiroshi Yanagita、Emiko Urano、Kishow Matsumoto、Reiko Ichikawa、Yoshihisa Takaesu、Masakazu Ogata、Tsutomu Murakami、Hongui Wu、Joe Chiba、Jun Komano、Tyuji Hoshino

  DOI：10.1016/j.bmc.2010.12.011

  日期：2011.1

  Rapid emergence of drug-resistant variants is one of the most serious problems in chemotherapy for HIV-1 infectious diseases. Inhibitors acting on a target not addressed by approved drugs are of great importance to suppress drug-resistant viruses. HIV-1 reverse transcriptase has two enzymatic functions, DNA polymerase and RNase H activities. The RNase H activity is an attractive target for a new class of antiviral drugs. On the basis of the hit chemicals found in our previous screening with 20,000 small molecular-weight compounds, we synthesized derivatives of 5-nitro-furan-2-carboxylic acid. Inhibition of RNase H enzymatic activity was measured in a biochemical assay with real-time monitoring of florescence emission from the digested RNA substrate. Several derivatives showed higher inhibitory activities that those of the hit chemicals. Modulation of the 5-nitro-furan-2-carboxylic moiety resulted in a drastic decrease in inhibitory potency. In contrast, many derivatives with modulation of other parts retained inhibitory activities to varying degrees. These findings suggest the binding mode of active derivatives, in which three oxygen atoms aligned in a straight form at the nitro-furan moiety are coordinated to two divalent metal ions located at RNase H reaction site. Hence, the nitro-furan-carboxylic moiety is one of the critical scaffolds for RNase H inhibition. Of note, the RNase H inhibitory potency of a derivative was improved by 18-fold compared with that of the original hit compound, and no significant cytotoxicity was observed for most of the derivatives showing inhibitory activity. Since there is still much room for modification of the compounds at the part opposite the nitro-furan moiety, further chemical conversion will lead to improvement of compound potency and specificity. (C) 2010 Elsevier Ltd. All rights reserved.