methyl 3-amino-6-chloro-5-(dimethylamino)pyrazine-2-carboxylate | 1458-21-5

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 二嗪类
• 英文名称: methyl 3-amino-6-chloro-5-(dimethylamino)pyrazine-2-carboxylate
• CAS: 1458-21-5
• 化学式: C₈H₁₁ClN₄O₂
• 分子量: 230.654
• InChiKey: CIJAOZNANCPBRB-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  1.6
• 重原子数：
  15
• 可旋转键数：
  3
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.38
• 拓扑面积：
  81.3
• 氢给体数：
  1
• 氢受体数：
  6

反应信息

• 作为反应物：
  描述：

  methyl 3-amino-6-chloro-5-(dimethylamino)pyrazine-2-carboxylate 在 palladium on activated charcoal sodium hydroxide 、 氢溴酸 、 氢气 、 溴 、 sodium nitrite 作用下， 以 四氢呋喃 、 乙醇 、 溶剂黄146 为溶剂， 反应 48.5h， 生成 6-氯-5-二甲氨基-吡嗪-2-羧酸
  参考文献：
  名称：

  Potent HIV protease inhibitors: the development of tetrahydrofuranylglycines as novel P2-ligands and pyrazine amides as P3-ligands

  摘要：

  A series of protease inhibitors bearing constrained unnatural amino acids at the P2-position and novel heterocycles at the P3-position of compound 1 (Ro 31-8959) were synthesized, and their in vitro enzyme inhibitory and antiviral activities were evaluated. Replacement of P2-asparagine of compound 1 with (2S,3'R)-tetrahydrofuranylglycine resulted in improvement in enzyme inhibitory as well as antiviral potencies (compound 23). Interestingly, incorporation of (2S,3'S)-tetrahydrofuranylglycine at the P2-position proved to be less effective. The resulting compound 24 was 100-fold less potent than the 2S,3R-isomer (compound 23). This stereochemical preference indicated a hydrogen-bonding interaction between the tetrahydrofuranyl oxygen and the residues of the S2-region of the enzyme active site. Furthermore, replacement of P3-quinolinoyl ligand of 1 with various novel heterocycles resulted in potent inhibitors of HIV proteases. Of particular interest, compound 2 with (2S,3'R)-tetrahydrofuranylglycine at P2 and pyrazine derivative at P3 is one of the most potent inhibitors of HIV-1 (IC50 value 0.07 nM) and HIV-2 (IC50 value 0.18 nM) proteases. Another important result in this series is the identification of compound 27 in which the P2-P3-amide carbonyl has been removed. The resulting compound 27 has exhibited improvement in antiviral potency while retaining the enzyme inhibitory potency similar to compound 1.

  DOI：

  10.1021/jm00068a006
• 作为产物：
  描述：

  二甲胺 、 3-氨基-5,6-二氯-2-吡嗪羧酸甲脂 在 N,N-二异丙基乙胺 作用下， 以 四氢呋喃 、 N,N-二甲基甲酰胺 为溶剂， 反应 16.0h， 以83%的产率得到methyl 3-amino-6-chloro-5-(dimethylamino)pyrazine-2-carboxylate
  参考文献：
  名称：

  使用基于亚胺的动态组合化学进行模板指导的RNA配体选择。

  摘要：

  这项研究建立了基于亚胺的动态组合化学发现RNA靶标的非共价配体的适用性。我们阐明了芳基胺反应性的基础性质，并证明了基于阿米洛利的动态库中目标导向的紧密结合剂的扩增。

  DOI：

  10.1039/d0cc00266f

文献信息

• Amiloride as a new RNA-binding scaffold with activity against HIV-1 TAR
  作者：Neeraj N. Patwardhan、Laura R. Ganser、Gary J. Kapral、Christopher S. Eubanks、Janghyun Lee、Bharathwaj Sathyamoorthy、Hashim M. Al-Hashimi、Amanda E. Hargrove

  DOI：10.1039/c6md00729e

  日期：——

  dimethylamiloride from a weak TAR ligand to one of the tightest binding selective TAR ligands reported to date through a novel combination of synthetic methods and analytical techniques. We expect these methods to allow for rapid library expansion and tuning of the amiloride scaffold for a range of RNA targets and for SOFAST NMR to allow unprecedented evaluation of small molecule:RNA interactions.

  RNA靶向支架的多样化为寻找治疗相关RNA（例如HIV-1 TAR）的选择性配体提供了广阔的前景。我们在此报告了阿米洛利作为一种新型的RNA结合支架，以及合成的C（5）-和C（6）-多样化途径的合成途径的建立。在C（5）-和C（6）位置的迭代修饰产生衍生物24，在肽置换试验中，其活性比母体二甲基阿米洛利提高了100倍。使用2D SOFAST- [ 1 H- 13C] HMQC NMR方法，可以轻松快速地评估所有文库成员的结合模式。化学信息学分析揭示了选择性配体和非选择性配体之间的明显差异。在这项研究中，我们通过合成方法和分析技术的新颖结合，将二甲基阿米洛利从弱的TAR配体演化为迄今为止报道的结合最紧密的选择性TAR配体之一。我们希望这些方法能够快速扩增文库并调整阿米洛利支架的RNA靶标范围，并对SOFAST NMR进行前所未有的小分子与RNA相互作用的评估。
• Pyrazinecarboxamides and processes for preparing same
  申请人：Merck & Co., Inc.

  公开号：US04085211A1

  公开（公告）日：1978-04-18

  The case involves novel pyrazinecarboxamides and processes for preparing same. The pyrazinecarboxamides are excellent eukalemic agents possessing diuretic and natriuretic properties.

  本案涉及新型吡嗪羧酰胺及其制备方法。这些吡嗪羧酰胺是优秀的利尿剂和钠利尿剂。
• US4085211A
  申请人：——

  公开号：US4085211A

  公开（公告）日：1978-04-18