tert-butyl (5-(4-methoxyphenyl)pentyl)carbamate | 905293-02-9

• 分子结构分类: 有机化合物 - 苯类化合物 - 苯酚醚
• 英文名称: tert-butyl (5-(4-methoxyphenyl)pentyl)carbamate
• 英文别名: tert-butyl N-[5-(4-methoxyphenyl)pentyl]carbamate
• CAS: 905293-02-9
• 化学式: C₁₇H₂₇NO₃
• 分子量: 293.406
• InChiKey: QFEGRKFTTYHIGA-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  4.1
• 重原子数：
  21
• 可旋转键数：
  9
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.59
• 拓扑面积：
  47.6
• 氢给体数：
  1
• 氢受体数：
  3

反应信息

• 作为反应物：
  描述：

  tert-butyl (5-(4-methoxyphenyl)pentyl)carbamate 在 三氟乙酸 作用下， 以 二氯甲烷 为溶剂， 反应 1.0h， 生成 5-(4-Methoxyphenyl)pentan-1-amine;2,2,2-trifluoroacetic acid
  参考文献：
  名称：

  Design, Synthesis, and Structure−Activity Relationships of Novel 2-Substituted Pyrazinoylguanidine Epithelial Sodium Channel Blockers:  Drugs for Cystic Fibrosis and Chronic Bronchitis

  摘要：

  Amiloride (1), the prototypical epithelial sodium channel (ENaC) blocker, has been administered with limited success as aerosol therapy for improving pulmonary function in patients with the genetic disorder cystic fibrosis. This study was conducted to synthesize and identify more potent, less reversible ENaC blockers, targeted for aerosol therapy and possessing minimal systemic renal activity. A series of novel 2-substituted acylguanidine analogues of amiloride were synthesized and evaluated for potency and reversibility on bronchial ENaC. All compounds tested were more potent and less reversible at blocking sodium-dependent shortcircuit current than amiloride. Compounds 30-34 showed the greatest potency on ENaC with IC50 values below 10 nM. A regioselective difference in potency was found (compounds 30, 39, and 40), whereas no stereospecific (compounds 33, 34) difference in potency on ENaC was displayed. Lead compound 32 was 102-fold more potent and 5-fold less reversible than amiloride and displayed the lowest IC50 value ever reported for an ENaC blocker.

  DOI：

  10.1021/jm051134w
• 作为产物：
  描述：

  N-(4-戊炔基)氨基甲酸叔丁酯 在 palladium on activated charcoal 、 copper(l) iodide 氢气 、 二乙胺 、 三苯基膦 、 palladium dichloride 作用下， 以 乙醇 为溶剂， 20.0 ℃ 、344.74 kPa 条件下， 反应 24.0h， 生成 tert-butyl (5-(4-methoxyphenyl)pentyl)carbamate
  参考文献：
  名称：

  Design, Synthesis, and Structure−Activity Relationships of Novel 2-Substituted Pyrazinoylguanidine Epithelial Sodium Channel Blockers:  Drugs for Cystic Fibrosis and Chronic Bronchitis

  摘要：

  Amiloride (1), the prototypical epithelial sodium channel (ENaC) blocker, has been administered with limited success as aerosol therapy for improving pulmonary function in patients with the genetic disorder cystic fibrosis. This study was conducted to synthesize and identify more potent, less reversible ENaC blockers, targeted for aerosol therapy and possessing minimal systemic renal activity. A series of novel 2-substituted acylguanidine analogues of amiloride were synthesized and evaluated for potency and reversibility on bronchial ENaC. All compounds tested were more potent and less reversible at blocking sodium-dependent shortcircuit current than amiloride. Compounds 30-34 showed the greatest potency on ENaC with IC50 values below 10 nM. A regioselective difference in potency was found (compounds 30, 39, and 40), whereas no stereospecific (compounds 33, 34) difference in potency on ENaC was displayed. Lead compound 32 was 102-fold more potent and 5-fold less reversible than amiloride and displayed the lowest IC50 value ever reported for an ENaC blocker.

  DOI：

  10.1021/jm051134w

文献信息

• Heterocyclization involving benzylic C(sp³)–H functionalization enabled by visible light photoredox catalysis
  作者：Ganesh Pandey、Ramkrishna Laha、Pradip Kumar Mondal

  DOI：10.1039/c9cc04287c

  日期：——

  A general and efficient method for heterocyclization involving benzylic C(sp3)–H functionalization enabled by visible light photoredox catalysis to access a wide range of structurally diverse oxygen as well as nitrogen heterocycles up to a gram scale is reported. The potential application of this new methodology is demonstrated by the total synthesis of (−)-codonopsinine and (+)-centrolobine. Herein

  据报道，一种通用有效的杂环化方法涉及苄基C（sp 3）–H官能团，该官能团通过可见光光氧化还原催化作用可访问范围广泛的结构多样的氧和氮杂环，直至克级。（-）-codonopsinine和（+）-centrolobine的总合成证明了这种新方法的潜在应用。在本文中提出了与氟化试剂不同，selectfluor用作氧化猝灭剂和氢自由基受体。