8-(4-hydroxyphenethyl)-1,3-dimethyl-6,7,8,9-tetrahydropyrazino[2,1-f]purine-2,4(1H,3H)-dione

• 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: 8-(4-hydroxyphenethyl)-1,3-dimethyl-6,7,8,9-tetrahydropyrazino[2,1-f]purine-2,4(1H,3H)-dione
• 英文别名: 8-[2-(4-hydroxyphenyl)ethyl]-1,3-dimethyl-7,9-dihydro-6H-purino[7,8-a]pyrazine-2,4-dione
• 化学式: C₁₈H₂₁N₅O₃
• 分子量: 355.396
• InChiKey: ZJERWSOGIMARLB-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  0.7
• 重原子数：
  26
• 可旋转键数：
  3
• 环数：
  4.0
• sp3杂化的碳原子比例：
  0.39
• 拓扑面积：
  81.9
• 氢给体数：
  1
• 氢受体数：
  5

反应信息

• 作为反应物：
  描述：

  8-(4-hydroxyphenethyl)-1,3-dimethyl-6,7,8,9-tetrahydropyrazino[2,1-f]purine-2,4(1H,3H)-dione 、 二甲氨基氯乙烷盐酸 在 potassium carbonate 作用下， 以 丁酮 为溶剂， 反应 10.0h， 以28%的产率得到8-(4-(2-(dimethylamino)ethoxy)phenethyl)-1,3-dimethyl-6,7,8,9-tetrahydropyrazino[2,1-f]purine-2,4(1H,3H)-dione
  参考文献：
  名称：

  在人和大鼠腺苷受体上三环嘧啶基和吡嗪并黄嘌呤的亲和力和结合方式的异同。

  摘要：

  获得了一系列新的32个嘧啶基和5个四氢吡嗪并[2,1-f]嘌呤二酮，并对其腺苷受体（ARs）亲和力进行了评估。9-（4-（2-（二甲基氨基）乙氧基）苯基）-1,3-二丁基衍生物-6,7,8,9-四氢嘧啶基[1,2-f]嘌呤-2,4（1H，3H） -dione被发现是本系列中最有效的A1 AR拮抗剂，显示出对其他AR亚型的选择性。建立了获得的嘌呤二酮的结构活性。将研究的文库与人和大鼠A1和A2A AR的同源性模型对接实验，可以比较所选化合物的预期结合模式。

  DOI：

  10.1016/j.bmc.2016.07.028
• 作为产物：
  描述：

  7-(2-bromoethyl)-8-(hydroxymethyl)-1,3-dimethyl-1H-purine-2,6(3H,7H)-dione 在 三溴化磷 、 N,N-二异丙基乙胺 作用下， 以 乙二醇二甲醚 、 二氯甲烷 为溶剂， 反应 1.0h， 生成 8-(4-hydroxyphenethyl)-1,3-dimethyl-6,7,8,9-tetrahydropyrazino[2,1-f]purine-2,4(1H,3H)-dione
  参考文献：
  名称：

  8-Substituted 1,3-dimethyltetrahydropyrazino[2,1-f]purinediones: Water-soluble adenosine receptor antagonists and monoamine oxidase B inhibitors

  摘要：

  Multitarget approaches, i.e., addressing two or more targets simultaneously with a therapeutic agent, are hypothesized to offer additive therapeutic benefit for the treatment of neurodegenerative diseases. Validated targets for the treatment of Parkinson's disease are, among others, the A(2A) adenosine receptor (AR) and the enzyme monoamine oxidase B (MAO-B). Additional blockade of brain A(1) ARs may also be beneficial. We recently described 8-benzyl-substituted tetrahydropyrazino[2,1-f]purinediones as a new lead structure for the development of such multi-target drugs. We have now designed a new series of tetrahydropyrazino[2,1-f]purinediones to extensively explore their structure-activity-relationships. Several compounds blocked human and rat A(1) and A(2A)ARs at similar concentrations representing dual A(1)/A(2A) antagonists with high selectivity versus the other AR subtypes. Among the best dual A(1)/A(2A)AR antagonists were 8-(3-(4-chlorophenyl)propy1)-1,3-dimethyl-6,7,8,9-tetrahydropyrazino[2,1-flpurine-2,4(1H,3H)-dione (41,K-i human A(1): 65.5 nM, A(2A): 230 nM; K-1 rat A(1): 352 nM, A(2A): 316 nM) and 1,3-dimethy1-84(2(thiophen-2-yl)thiazol-4-y1)methyl)-6,7,8,9-tetrahydropyrazino[2,1-fjpurine-2,4(1H,3H)-dione (57, K-i human A(1): 642 nM, A(2A): 203 nM; K-i rat A(1): 166 nM, A(2A): 121 nM). Compound 57 was found to be well water-soluble (0.7 mg/mL) at a physiological pH value of 7.4. One of the new compounds showed triple -target inhibition: (R)-1,3-dimethy1-8-(2,1,3,4-tetrahydronaphthalen-1-y1)-6,7,8,9-tetrahydropyrazino[2,1-Apurine-2,4(1H,3H)-dione (49) was about equipotent at A(1) and A(2A)ARs and at MAO-B (K-i human A(1): 393 nM, human A(2A): 595 nM, IC50 human MAO-B: 210 nM) thus allowing future in vivo explorations of the intended multi-target approach. (C) 2016 Elsevier Ltd. All rights reserved.

  DOI：

  10.1016/j.bmc.2016.09.003