N²-Isopropylguanin | 55146-03-7

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 咪唑并嘧啶类
• 英文名称: N²-Isopropylguanin
• 英文别名: 2-(iso-propyl)amino-1,9-dihydro-purin-6-one；2-isopropylamino-1,7(9)-dihydro-purin-6-one；Isopropyl guanine；2-(propan-2-ylamino)-1,7-dihydropurin-6-one
• CAS: 55146-03-7
• 化学式: C₈H₁₁N₅O
• 分子量: 193.208
• InChiKey: DUSLFPYLAUAMQS-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  0.1
• 重原子数：
  14
• 可旋转键数：
  2
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.38
• 拓扑面积：
  82.2
• 氢给体数：
  3
• 氢受体数：
  3

反应信息

• 作为产物：
  描述：

  (6-chloro-9-trityl-9H-purin-2-yl)-(iso-propyl)-amine 在 甲酸 作用下， 以 水 为溶剂， 反应 4.0h， 以95%的产率得到N²-Isopropylguanin
  参考文献：
  名称：

  Concise access to N9-mono-, N2-mono- and N2,N9-di-substituted guanines via efficient Mitsunobu reactions

  摘要：

  Guanine poses several problems to the synthetic chemist owing to its polyfunctional nature and poor solubility. Over the past few decades, synthetic guanines have found applications as anti-cancer and anti-viral agents. Coupled with the ever-growing interest in designer PNAs and G-quartets, simple and efficient synthetic routes to novel guanines would be of significant benefit. We herein report that, upon simple protection and/or activation step(s), the guanine precursor 2-amino-6-chloropurine is rendered an excellent substrate for Mitsunobu chemistry, furnishing, after subsequent hydrolytic dechlorination and appropriate deprotection step(s), the desired N9-mono-, N2-mono- or N2,N9-di-substituted guanines in excellent yields (>= 80%). Importantly, we demonstrate that N9-functionalization proceeds with very good N9/N7 regioselectivity and with complete inversion of stereochemistry. (C) 2010 Elsevier Ltd. All rights reserved.

  DOI：

  10.1016/j.tet.2010.03.118

文献信息

• MR1 LIGANDS AND PHARMACEUTICAL COMPOSITIONS FOR IMMUNOMODULATION
  申请人：Universität Basel

  公开号：EP3889602A1

  公开（公告）日：2021-10-06

  The invention relates to a method for modulating an interaction between an MR1 polypeptide and an MR1-specific T cell receptor molecule, whereby a MR1 polypeptide is contacted with a MR1 ligand compound that is a nucleobase adduct product reflecting a state of metabolic distress of a eukaryotic cell. The invention further relates to the use of compounds identified as MR1 ligands in vaccination or modulation of an MR1-restricted immune response.

  本发明涉及一种调节MR1多肽与MR1特异性T细胞受体分子之间相互作用的方法，其中MR1多肽与MR1配体化合物接触，MR1配体化合物是反映真核细胞代谢窘迫状态的核碱基加合物产物。 本发明进一步涉及鉴定为 MR1 配体的化合物在疫苗接种或调节 MR1 限制性免疫反应中的用途。
• Concise access to N9-mono-, N2-mono- and N2,N9-di-substituted guanines via efficient Mitsunobu reactions
  作者：Steven Fletcher、Vijay M. Shahani、Alan J. Lough、Patrick T. Gunning

  DOI：10.1016/j.tet.2010.03.118

  日期：2010.6

  Guanine poses several problems to the synthetic chemist owing to its polyfunctional nature and poor solubility. Over the past few decades, synthetic guanines have found applications as anti-cancer and anti-viral agents. Coupled with the ever-growing interest in designer PNAs and G-quartets, simple and efficient synthetic routes to novel guanines would be of significant benefit. We herein report that, upon simple protection and/or activation step(s), the guanine precursor 2-amino-6-chloropurine is rendered an excellent substrate for Mitsunobu chemistry, furnishing, after subsequent hydrolytic dechlorination and appropriate deprotection step(s), the desired N9-mono-, N2-mono- or N2,N9-di-substituted guanines in excellent yields (>= 80%). Importantly, we demonstrate that N9-functionalization proceeds with very good N9/N7 regioselectivity and with complete inversion of stereochemistry. (C) 2010 Elsevier Ltd. All rights reserved.