N-cyclopentyl-3-[(2-fluorophenyl)methyl]triazolo[4,5-d]pyrimidin-7-amine

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 三唑并嘧啶类
• 英文名称: N-cyclopentyl-3-[(2-fluorophenyl)methyl]triazolo[4,5-d]pyrimidin-7-amine
• 化学式: C₁₆H₁₇FN₆
• 分子量: 312.35
• InChiKey: WEKCCQKULFESCW-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  3
• 重原子数：
  23
• 可旋转键数：
  4
• 环数：
  4.0
• sp3杂化的碳原子比例：
  0.38
• 拓扑面积：
  68.5
• 氢给体数：
  1
• 氢受体数：
  6

反应信息

• 作为产物：
  描述：

  3-(2-氟苄基)-3H,6H,7H-1,2,3-三唑并[4,5-d]嘧啶-7-酮 在 氯化亚砜 、 三乙胺 、 N,N-二甲基甲酰胺 作用下， 以 乙醇 、 氯仿 为溶剂， 反应 4.5h， 生成 N-cyclopentyl-3-[(2-fluorophenyl)methyl]triazolo[4,5-d]pyrimidin-7-amine
  参考文献：
  名称：

  New amino derivatives of 1,2,3-triazolo[4,5-d]pyrimidines and their affinity towards A1 and A2A adenosine receptors

  摘要：

  Starting from the appropriate azides (4-chlorobenzyl-, 2-thiophenemethyl-, 2-fluorobenzyl-, and 4-fluorobenzylazide in which the variation of the substituent is at the basis of the four series of derivatives (a-d), the 7-aminosubstituted 1,2,3-triazolo[4,5-d]pyrimidines 4 were prepared by a well known synthetic route. The biological activity of compounds 4 was expected on the basis of the presence of particular substituents on N(7), and these substituents were introduced by the reaction of the 7 lactamic carbonyl function, present on precursors 3, with cycloalkyl-, aralkyl- and arylamines. Radioligand binding assays at bovine brain adenosine A(1) and A(2A) receptors showed that some compounds possessed a high affinity and selectivity for the A(1) receptor subtype. Furthermore, biological results indicated that the p-chlorobenzyl substituent lowered receptor binding, compared with the previously prepared benzyl and 2-chlorobenzyl derivatives, suggesting certain particular steric requirements of the lipophilic region which interacts with the benzyl substituent. The thiophenemethyl substituent conferred more activity than the benzyl one. The presence of a fluorine atom on the benzyl group determined a high affinity, especially when it was in the ortho position. Compounds 4c.1 (R = 2-fluorobenzyl, R' = cyclopentyl, Ki = 10.5 nM), 4c.2 (R = 2-fluorobenzyl, R' = cyclohexyl, Ki = 19.5 nM) and 4d.1 (R = 4-fluorobenzyl, R' = cyclopentyl, Ki = 26 nM) were the most active for A(1) receptors. (C) 1999 Editions scientifiques et medicales Elsevier SAS.

  DOI：

  10.1016/s0223-5234(99)00205-6

文献信息

• New amino derivatives of 1,2,3-triazolo[4,5-d]pyrimidines and their affinity towards A1 and A2A adenosine receptors
  作者：L Betti

  DOI：10.1016/s0223-5234(99)00205-6

  日期：1999.10

  Starting from the appropriate azides (4-chlorobenzyl-, 2-thiophenemethyl-, 2-fluorobenzyl-, and 4-fluorobenzylazide in which the variation of the substituent is at the basis of the four series of derivatives (a-d), the 7-aminosubstituted 1,2,3-triazolo[4,5-d]pyrimidines 4 were prepared by a well known synthetic route. The biological activity of compounds 4 was expected on the basis of the presence of particular substituents on N(7), and these substituents were introduced by the reaction of the 7 lactamic carbonyl function, present on precursors 3, with cycloalkyl-, aralkyl- and arylamines. Radioligand binding assays at bovine brain adenosine A(1) and A(2A) receptors showed that some compounds possessed a high affinity and selectivity for the A(1) receptor subtype. Furthermore, biological results indicated that the p-chlorobenzyl substituent lowered receptor binding, compared with the previously prepared benzyl and 2-chlorobenzyl derivatives, suggesting certain particular steric requirements of the lipophilic region which interacts with the benzyl substituent. The thiophenemethyl substituent conferred more activity than the benzyl one. The presence of a fluorine atom on the benzyl group determined a high affinity, especially when it was in the ortho position. Compounds 4c.1 (R = 2-fluorobenzyl, R' = cyclopentyl, Ki = 10.5 nM), 4c.2 (R = 2-fluorobenzyl, R' = cyclohexyl, Ki = 19.5 nM) and 4d.1 (R = 4-fluorobenzyl, R' = cyclopentyl, Ki = 26 nM) were the most active for A(1) receptors. (C) 1999 Editions scientifiques et medicales Elsevier SAS.