2-[1-[8-chloro-3-(cyclopropylmethyl)-1,2,4-triazolo[4,3-a]pyridin-7-yl]-4-piperidinyl]-3,5-difluoro-phenol | 1376335-33-9

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 哌啶类
• 英文名称: 2-[1-[8-chloro-3-(cyclopropylmethyl)-1,2,4-triazolo[4,3-a]pyridin-7-yl]-4-piperidinyl]-3,5-difluoro-phenol
• 英文别名: 2-[1-[8-chloro-3-(cyclopropylmethyl)-1,2,4-triazolo[4,3-a]pyridin-7-yl]-4-piperidyl]-3,5-difluorophenol；2-[1-[8-Chloro-3-(cyclopropylmethyl)-[1,2,4]triazolo[4,3-a]pyridin-7-yl]piperidin-4-yl]-3,5-difluorophenol；2-[1-[8-chloro-3-(cyclopropylmethyl)-[1,2,4]triazolo[4,3-a]pyridin-7-yl]piperidin-4-yl]-3,5-difluorophenol
• CAS: 1376335-33-9
• 化学式: C₂₁H₂₁ClF₂N₄O
• 分子量: 418.874
• InChiKey: BQGBAEHOPBUUKY-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  5.4
• 重原子数：
  29
• 可旋转键数：
  4
• 环数：
  5.0
• sp3杂化的碳原子比例：
  0.43
• 拓扑面积：
  53.7
• 氢给体数：
  1
• 氢受体数：
  6

反应信息

• 作为反应物：
  描述：

  [11C]methyl iodide 、 2-[1-[8-chloro-3-(cyclopropylmethyl)-1,2,4-triazolo[4,3-a]pyridin-7-yl]-4-piperidinyl]-3,5-difluoro-phenol 在 caesium carbonate 作用下， 以 N,N-二甲基甲酰胺 为溶剂， 反应 0.05h， 生成 8-chloro-3-(cyclopropylmethyl)-7-[4-[2,4-difluoro-6-[¹¹C]methoxyphenyl]-1-piperidinyl]-1,2,4-triazolo[4,3-a]pyridine
  参考文献：
  名称：

  Synthesis, Evaluation, and Radiolabeling of New Potent Positive Allosteric Modulators of the Metabotropic Glutamate Receptor 2 as Potential Tracers for Positron Emission Tomography Imaging

  摘要：

  The synthesis and in vitro and in vivo evaluation of a new series of 7-(phenylpiperidinyl)-1,2,4-triazolo[4,3-a]pyridines, which were conveniently radiolabeled with carbon-11, as potential positron emission tomography (PET) radiotracers for in vivo imaging of the allosteric binding site of the metabotropic glutamate (mGlu) receptor subtype 2 are described. The synthesized compounds proved to be potent and selective positive allosteric modulators (PAMs) of the mGlu receptor 2 (mGluR2) in a [S-35]GTP gamma S binding assay and were able to displace an mGluR2 PAM radioligand, which we had previously developed, with IC50 values in the low nanomolar range. The most promising candidates were radiolabeled and subjected to biodistribution studies and radiometabolite analysis in rats. Preliminary small-animal PET (mu PET) studies in rats indicated that [C-11]20f binds specifically and reversibly to an mGluR2 allosteric site, strongly suggesting that it is a promising candidate for PET imaging of mGluR2 in the brain.

  DOI：

  10.1021/jm300912k
• 作为产物：
  描述：

  在 盐酸 、 palladium diacetate 、 三溴化硼 、 caesium carbonate 、 R-(+)-1,1'-联萘-2,2'-双二苯膦 作用下， 以 甲醇 、 二氯甲烷 、 异丙醇 、 甲苯 为溶剂， 反应 2.25h， 生成 2-[1-[8-chloro-3-(cyclopropylmethyl)-1,2,4-triazolo[4,3-a]pyridin-7-yl]-4-piperidinyl]-3,5-difluoro-phenol
  参考文献：
  名称：

  Synthesis, Evaluation, and Radiolabeling of New Potent Positive Allosteric Modulators of the Metabotropic Glutamate Receptor 2 as Potential Tracers for Positron Emission Tomography Imaging

  摘要：

  The synthesis and in vitro and in vivo evaluation of a new series of 7-(phenylpiperidinyl)-1,2,4-triazolo[4,3-a]pyridines, which were conveniently radiolabeled with carbon-11, as potential positron emission tomography (PET) radiotracers for in vivo imaging of the allosteric binding site of the metabotropic glutamate (mGlu) receptor subtype 2 are described. The synthesized compounds proved to be potent and selective positive allosteric modulators (PAMs) of the mGlu receptor 2 (mGluR2) in a [S-35]GTP gamma S binding assay and were able to displace an mGluR2 PAM radioligand, which we had previously developed, with IC50 values in the low nanomolar range. The most promising candidates were radiolabeled and subjected to biodistribution studies and radiometabolite analysis in rats. Preliminary small-animal PET (mu PET) studies in rats indicated that [C-11]20f binds specifically and reversibly to an mGluR2 allosteric site, strongly suggesting that it is a promising candidate for PET imaging of mGluR2 in the brain.

  DOI：

  10.1021/jm300912k

文献信息

• RADIOLABELLED mGluR2 PET LIGANDS
  申请人：Andrés-Gil José Ignacio

  公开号：US20130230459A1

  公开（公告）日：2013-09-05

  The present invention relates to novel, selective, radiolabelled mGluR2 ligands which are useful for imaging and quantifying the metabotropic glutamate receptor mGluR2 in tissues, using positron-emission tomography (PET). The invention is also directed to compositions comprising such compounds, to processes for preparing such compounds and compositions, to the use of such compounds and compositions for imaging a tissue, cells or a host, in vitro or in vivo and to precursors of said compounds.

  本发明涉及新型的、选择性的、放射性标记的mGluR2配体，这些配体可用于使用正电子发射断层扫描（PET）在组织中成像和量化代谢型谷氨酸受体mGluR2。本发明还涉及包含这些化合物的组合物，制备这些化合物和组合物的方法，使用这些化合物和组合物在体外或体内成像组织、细胞或宿主，以及所述化合物的前体。
• Synthesis, Evaluation, and Radiolabeling of New Potent Positive Allosteric Modulators of the Metabotropic Glutamate Receptor 2 as Potential Tracers for Positron Emission Tomography Imaging
  作者：José-Ignacio Andrés、Jesús Alcázar、José María Cid、Meri De Angelis、Laura Iturrino、Xavier Langlois、Hilde Lavreysen、Andrés A. Trabanco、Sofie Celen、Guy Bormans

  DOI：10.1021/jm300912k

  日期：2012.10.25

  The synthesis and in vitro and in vivo evaluation of a new series of 7-(phenylpiperidinyl)-1,2,4-triazolo[4,3-a]pyridines, which were conveniently radiolabeled with carbon-11, as potential positron emission tomography (PET) radiotracers for in vivo imaging of the allosteric binding site of the metabotropic glutamate (mGlu) receptor subtype 2 are described. The synthesized compounds proved to be potent and selective positive allosteric modulators (PAMs) of the mGlu receptor 2 (mGluR2) in a [S-35]GTP gamma S binding assay and were able to displace an mGluR2 PAM radioligand, which we had previously developed, with IC50 values in the low nanomolar range. The most promising candidates were radiolabeled and subjected to biodistribution studies and radiometabolite analysis in rats. Preliminary small-animal PET (mu PET) studies in rats indicated that [C-11]20f binds specifically and reversibly to an mGluR2 allosteric site, strongly suggesting that it is a promising candidate for PET imaging of mGluR2 in the brain.