N⁶-geranyladenosine

• 分子结构分类: 有机化合物 - 核苷、核苷酸和类似物 - 嘌呤核苷
• 英文名称: N⁶-geranyladenosine
• 英文别名: N6-geranyladenosine；(2R,3R,4S,5R)-2-[6-[[(2E)-3,7-dimethylocta-2,6-dienyl]amino]purin-9-yl]-5-(hydroxymethyl)oxolane-3,4-diol
• 化学式: C₂₀H₂₉N₅O₄
• 分子量: 403.481
• InChiKey: QMKYCPYBVHGYOK-CHBIYEBUSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  3
• 重原子数：
  29
• 可旋转键数：
  8
• 环数：
  3.0
• sp3杂化的碳原子比例：
  0.55
• 拓扑面积：
  126
• 氢给体数：
  4
• 氢受体数：
  8

反应信息

• 作为反应物：
  描述：

  N⁶-geranyladenosine 在 disodium hydrogen arsenate heptahydrate 、 recombinant E_. coli purine nucleoside phosphorylase 作用下， 以 aq. buffer 为溶剂， 反应 16.0h， 以90%的产率得到N6-[(E)-3,7-二甲基-2,6-辛二烯基]腺嘌呤
  参考文献：
  名称：

  从核苷化学酶促合成细胞分裂素：核糖作为封闭基团†

  摘要：

  核苷磷酸化酶参与核苷生物合成的挽救途径，并催化核碱基与α - D-核糖-1-磷酸的可逆反应，生成相应的核苷和无机磷酸盐。这些反应的平衡向核苷转移，特别是在嘌呤的情况下。嘌呤核苷磷酸化酶（PNP，EC 2.4.2.1）在实验室和工业中广泛用于合成具有实际重要性的核苷。细菌PNP利用相对广泛的具有不同取代基的嘌呤形成相应的核苷，具有相对较宽的底物特异性。为了使反应朝相反的方向进行，我们使用了砷解作用而不是磷解作用。由于生成的α-的水解，该反应是不可逆的D-核糖-1-砷。结果，杂环碱以定量产率形成并且可以容易地分离。我们已经开发出一种新的细胞分裂素制备方法，该方法基于在PNP和Na 2 HAsO 4存在下酶解N 6取代的腺苷的N-糖苷键的方法。根据HPLC分析，转化以定量产率进行。在提出的策略中，核糖残基充当保护基。最终产品具有的ASO无污染4 3-已经检测到通过HPLC-HRMS; 已经提出了通过ESI-MS进行简单的砷分析检测。

  DOI：

  10.1039/c8ob00223a
• 作为产物：
  描述：

  在 正丙胺 作用下， 以 甲醇 为溶剂， 反应 24.0h， 以155 mg的产率得到N⁶-geranyladenosine
  参考文献：
  名称：

  Chemical modification of the plant isoprenoid cytokinin N6-isopentenyladenosine yields a selective inhibitor of human enterovirus 71 replication

  摘要：

  In this study, we demonstrate that N-6-isopentenyladenosine, which essentially is a plant cytokinin-like compound, exerts a potent and selective antiviral effect on the replication of human enterovirus 71 with an EC50 of 1.0 +/- 0.2 mu M and a selectivity index (SI) of 5.7. The synthesis of analogs with modification of the N-6-position did not result in a lower EC50 value. However, in particular with the synthesis of N6-(5hexene-2-yne-1-yl)adenosine (EC50 = 43 +/- 1.5 mu M), the selectivity index was significantly increased: because of a reduction in the adverse effect of this compound on the host cells, an SI > 101 could be calculated. With this study, we for the first time provide proof that a compound class that is based on the plant cytokinin skeleton offers an interesting starting point for the development of novel antivirals against mammalian viruses, in the present context in particular against enterovirus 71. (C) 2014 Elsevier Masson SAS. All rights reserved.

  DOI：

  10.1016/j.ejmech.2014.11.048

文献信息

• New tools in nucleoside toolbox of tick-borne encephalitis virus reproduction inhibitors
  作者：Alexey A. Orlov、Mikhail S. Drenichev、Vladimir E. Oslovsky、Nikolay N. Kurochkin、Pavel N. Solyev、Liubov I. Kozlovskaya、Vladimir A. Palyulin、Galina G. Karganova、Sergey N. Mikhailov、Dmitry I. Osolodkin

  DOI：10.1016/j.bmcl.2017.01.040

  日期：2017.3

  Design and development of nucleoside analogs is an established strategy in the antiviral drug discovery field. Nevertheless, for many viruses the coverage of structure-activity relationships (SAR) in the nucleoside chemical space is not sufficient. Here we present the nucleoside SAR exploration for tick-borne encephalitis virus (TBEV), a member of Flavivirus genus. Promising antiviral activity may be achieved by introduction of large hydrophobic substituents in the position 6 of adenosine or bulky silyl groups to the position 5'. Introduction of methyls to the ribose moiety does not lead to inhibition of TBEV reproduction. Possible mechanisms of action of these nucleosides include the inhibition of viral entry or interaction with TBEV non-structural protein 5 methyltransferase or RNA-dependent RNA polymerase domains. (C) 2017 Elsevier Ltd. All rights reserved.