8-methyl-2-(4-trifluoromethylphenyl)-pyrazolo[4,3-e][1,2,4]triazolo[1,5-c]pyrimidin-5-amine | 1289637-33-7

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 唑类
• 英文名称: 8-methyl-2-(4-trifluoromethylphenyl)-pyrazolo[4,3-e][1,2,4]triazolo[1,5-c]pyrimidin-5-amine
• 英文别名: 11-methyl-4-[4-(trifluoromethyl)phenyl]-3,5,6,8,10,11-hexazatricyclo[7.3.0.02,6]dodeca-1(12),2,4,7,9-pentaen-7-amine
• CAS: 1289637-33-7
• 化学式: C₁₄H₁₀F₃N₇
• 分子量: 333.276
• InChiKey: KDGPRHWWBZBOLO-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  2.3
• 重原子数：
  24
• 可旋转键数：
  1
• 环数：
  4.0
• sp3杂化的碳原子比例：
  0.14
• 拓扑面积：
  86.9
• 氢给体数：
  1
• 氢受体数：
  8

反应信息

• 作为反应物：
  描述：

  8-methyl-2-(4-trifluoromethylphenyl)-pyrazolo[4,3-e][1,2,4]triazolo[1,5-c]pyrimidin-5-amine 、 对甲氧基苯异氰酸酯 以 甲苯 为溶剂， 以59%的产率得到N-(4-methoxyphenyl)-N'-(8-methyl-2-(4-trifluoromethylphenyl)-pyrazolo[4,3-e][1,2,4]triazolo[1,5-c]pyrimidin-5-yl)-urea
  参考文献：
  名称：

  Does the combination of optimal substitutions at the C2-, N5- and N8-positions of the pyrazolo-triazolo-pyrimidine scaffold guarantee selective modulation of the human A3 adenosine receptors?

  摘要：

  In an attempt to study the optimal combination of a phenyl ring at the C-2-position and different substituents at the N-5- and N-8-positions towards the selective modulation of human A(3) adenosine receptors (hA(3)AR), we synthesized a new series of 2-para-(un)substituted-phenyl-pyrazolo-triazolo-pyrimidines bearing either a methyl or phenylethyl at N-8 and chains of variable length at N-5. Through biological evaluation, it was found that the majority of the compounds had good affinities towards the hA(3)AR in the low nanomolar range. Compound 16 possessed the best hA(3)AR affinity and selectivity profile (K(i)hA(3) = 1.33 nM; hA(1)/hA(3) = 4880; hA(2A)/hA(3) = 1100) in the present series of2-(substituted)phenylpyrazolo-triazolo-pyrimidine derivatives. In addition to pharmacological characterization, a molecular modeling investigation on these compounds further elucidated the effect of different substituents at the pyrazolo-triazolo-pyrimidine scaffold on affinity and selectivity to hA3AR. (C) 2011 Elsevier Ltd. All rights reserved.

  DOI：

  10.1016/j.bmc.2011.08.026
• 作为产物：
  描述：

  1-甲基-3-氨基-4-氰基吡唑 在 盐酸 、 碘苯二乙酸 、 三乙胺 、 肼 作用下， 以 水 为溶剂， 生成 8-methyl-2-(4-trifluoromethylphenyl)-pyrazolo[4,3-e][1,2,4]triazolo[1,5-c]pyrimidin-5-amine
  参考文献：
  名称：

  Does the combination of optimal substitutions at the C2-, N5- and N8-positions of the pyrazolo-triazolo-pyrimidine scaffold guarantee selective modulation of the human A3 adenosine receptors?

  摘要：

  In an attempt to study the optimal combination of a phenyl ring at the C-2-position and different substituents at the N-5- and N-8-positions towards the selective modulation of human A(3) adenosine receptors (hA(3)AR), we synthesized a new series of 2-para-(un)substituted-phenyl-pyrazolo-triazolo-pyrimidines bearing either a methyl or phenylethyl at N-8 and chains of variable length at N-5. Through biological evaluation, it was found that the majority of the compounds had good affinities towards the hA(3)AR in the low nanomolar range. Compound 16 possessed the best hA(3)AR affinity and selectivity profile (K(i)hA(3) = 1.33 nM; hA(1)/hA(3) = 4880; hA(2A)/hA(3) = 1100) in the present series of2-(substituted)phenylpyrazolo-triazolo-pyrimidine derivatives. In addition to pharmacological characterization, a molecular modeling investigation on these compounds further elucidated the effect of different substituents at the pyrazolo-triazolo-pyrimidine scaffold on affinity and selectivity to hA3AR. (C) 2011 Elsevier Ltd. All rights reserved.

  DOI：

  10.1016/j.bmc.2011.08.026

文献信息

• Does the combination of optimal substitutions at the C2-, N5- and N8-positions of the pyrazolo-triazolo-pyrimidine scaffold guarantee selective modulation of the human A3 adenosine receptors?
  作者：Siew Lee Cheong、Anton V. Dolzhenko、Silvia Paoletta、Evelyn Pei Rong Lee、Sonja Kachler、Stephanie Federico、Karl-Norbert Klotz、Anna V. Dolzhenko、Giampiero Spalluto、Stefano Moro、Giorgia Pastorin

  DOI：10.1016/j.bmc.2011.08.026

  日期：2011.10

  In an attempt to study the optimal combination of a phenyl ring at the C-2-position and different substituents at the N-5- and N-8-positions towards the selective modulation of human A(3) adenosine receptors (hA(3)AR), we synthesized a new series of 2-para-(un)substituted-phenyl-pyrazolo-triazolo-pyrimidines bearing either a methyl or phenylethyl at N-8 and chains of variable length at N-5. Through biological evaluation, it was found that the majority of the compounds had good affinities towards the hA(3)AR in the low nanomolar range. Compound 16 possessed the best hA(3)AR affinity and selectivity profile (K(i)hA(3) = 1.33 nM; hA(1)/hA(3) = 4880; hA(2A)/hA(3) = 1100) in the present series of2-(substituted)phenylpyrazolo-triazolo-pyrimidine derivatives. In addition to pharmacological characterization, a molecular modeling investigation on these compounds further elucidated the effect of different substituents at the pyrazolo-triazolo-pyrimidine scaffold on affinity and selectivity to hA3AR. (C) 2011 Elsevier Ltd. All rights reserved.