2-[[4-[(4-fluorophenyl)methyl]piperidin-1-yl]methyl]-3H-benzimidazol-5-ol

• 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-[[4-[(4-fluorophenyl)methyl]piperidin-1-yl]methyl]-3H-benzimidazol-5-ol
• 化学式: C₂₀H₂₂FN₃O
• 分子量: 339.413
• InChiKey: PAFKHYPPLMSWPU-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  3.8
• 重原子数：
  25
• 可旋转键数：
  4
• 环数：
  4.0
• sp3杂化的碳原子比例：
  0.35
• 拓扑面积：
  52.2
• 氢给体数：
  2
• 氢受体数：
  4

反应信息

• 作为反应物：
  描述：

  2-[[4-[(4-fluorophenyl)methyl]piperidin-1-yl]methyl]-3H-benzimidazol-5-ol 在 盐酸 作用下， 以 乙醚 为溶剂， 以192 mg的产率得到2-[4-(4-fluorobenzyl)piperidin-1-ylmethyl]benzimidazol-5-ol dihydrochloride
  参考文献：
  名称：

  Synthesis, evaluation and metabolic studies of radiotracers containing a 4-(4-[18F]-fluorobenzyl)piperidin-1-yl moiety for the PET imaging of NR2B NMDA receptors

  摘要：

  In this study, novel specific PET radioligands containing the 4-(4-fluorobenzyl)piperidine moiety and selectively antagonistic for the NR2B subunit containing NMDA receptors were developed. Two antagonists, RGH-896 (1a) and 4-(4-fluorobenzyl)piperidinyl-1-methyl-2-benzimidazol-5-ol (2a), belonging to two different structural families, were radiolabeled by an aromatic nucleophilic radiofluorination followed by a reduction of the para-position carbonyl function. Radiotracers [F-18]1a, [F-18]2a or the pattern 4-(4-[(18)[F]-fluorobenzyl)piperidine ([(18)[F]6) demonstrated an identical in vivo behavior with high accumulation of radioactivity in bone and cartilage which would suggest a radiodefluorination of the radiotracers. The identification of metabolites from 6 by LC-MS-MS confirmed the significant degree of defluorination as a result of the in vivo hydroxylation in the benzyl ring. In conclusion, [(18)[F]1a or [(18)[F]2a are not suitable for imaging the NR2B NMDA receptors due to their poor brain penetration. We also argue for a cautious use of the radiolabeled pattern, 4-(4-[(18)[F]-fluorobenzyl)piperidine, to develop PET radiotracers.(C) 2011 Elsevier Masson SAS. All rights reserved.

  DOI：

  10.1016/j.ejmech.2011.03.013
• 作为产物：
  描述：

  4-(4’-氟苄基)哌啶 在 盐酸 、 N-羟基-7-氮杂苯并三氮唑 、 氢溴酸 、 盐酸-N-乙基-Nˊ-(3-二甲氨基丙基)碳二亚胺 、 三乙胺 、 N,N-二异丙基乙胺 作用下， 以 N,N-二甲基甲酰胺 为溶剂， 反应 5.58h， 生成 2-[[4-[(4-fluorophenyl)methyl]piperidin-1-yl]methyl]-3H-benzimidazol-5-ol
  参考文献：
  名称：

  NR2B选择性N-甲基-D-天冬氨酸拮抗剂：5-取代的苯并咪唑的合成与评价。

  摘要：

  两类5取代的苯并咪唑被确定为N-甲基-d-天冬氨酸（NMDA）受体NR2B亚型的有效拮抗剂。所选化合物与NMDA受体的NR2A，NR2C和NR2D亚型以及hERG通道活性和α（1）-肾上腺素结合相比显示出非常好的选择性。苯并咪唑37a在大鼠角叉菜胶诱导的机械性痛觉过敏试验中显示出色的活性，并且在狗中显示出良好的药代动力学行为。

  DOI：

  10.1021/jm030483s

文献信息

• [EN] 2-[(4-BENZYL)-1-PIPERIDINYL)METHYL]BENZIMIDAZOLE-5-OL DERIVATIVES AS NR2B RECEPTOR ANTAGONISTS<br/>[FR] UTILISATION DE DERIVES DE 2-[(4-BENZYL)-1-PIPERIDINYL)METHYL]BENZIMIDAZOLE-5-OL COMME ANTAGONISTES DES RECEPTEURS DU NR2B
  申请人：MERCK & CO INC

  公开号：WO2004048364A1

  公开（公告）日：2004-06-10

  2-[(4-Benzyl)-1-piperidinyl)-methyl]benzimidazole-5-ol derivatives are NMDA NR2B receptor antagonists useful in the treatment of pain and other NMDA mediated diseases.

  2-[(4-苄基)-1-哌啶基)-甲基]苯并咪唑-5-醇衍生物是NMDA NR2B受体拮抗剂，对于疼痛和其他NMDA介导的疾病的治疗非常有用。
• 2-[(4-Benzyl)-1-piperidinyl)methyl]benzimidazole-5-ol derivatives as nr2b receptor antagonists
  申请人：McCauley A John

  公开号：US20060160853A1

  公开（公告）日：2006-07-20

  2-[(4-Benzyl)-1-piperidinyl)-methyl]benzimidazole-5-ol derivatives are NMDA NR2B receptor antagonists useful in the treatment of pain and other NMDA mediated diseases.

  2-[(4-苄基)-1-哌啶基]-甲基]苯并咪唑-5-醇衍生物是NMDA NR2B受体拮抗剂，可用于治疗疼痛和其他NMDA介导的疾病。
• 2- (4-BENZYL)-1-PIPERIDINYL)METHYL]BENZIMIDAZOLE-5-OL DERIVATIVES AS NR2B RECEPTOR ANTAGONISTS
  申请人：Merck & Co., Inc.

  公开号：EP1565453A1

  公开（公告）日：2005-08-24
• EP1565453A4
  申请人：——

  公开号：EP1565453A4

  公开（公告）日：2007-10-10
• NR2B-Selective <i>N</i>-Methyl-<scp>d</scp>-aspartate Antagonists:  Synthesis and Evaluation of 5-Substituted Benzimidazoles
  作者：John A. McCauley、Cory R. Theberge、Joseph J. Romano、Susan B. Billings、Kenneth D. Anderson、David A. Claremon、Roger M. Freidinger、Rodney A. Bednar、Scott D. Mosser、Stanley L. Gaul、Thomas M. Connolly、Cindra L. Condra、Menghang Xia、Michael E. Cunningham、Bohumil Bednar、Gary L. Stump、Joseph J. Lynch、Alison Macaulay、Keith A. Wafford、Kenneth S. Koblan、Nigel J. Liverton

  DOI：10.1021/jm030483s

  日期：2004.4.1

  Two classes of 5-substituted benzimidazoles were identified as potent antagonists of the NR2B subtype of the N-methyl-d-aspartate (NMDA) receptor. Selected compounds show very good selectivity versus the NR2A, NR2C, and NR2D subtypes of the NMDA receptor as well as versus hERG-channel activity and alpha(1)-adrenergic binding. Benzimidazole 37a shows excellent activity in the carrageenan-induced mechanical

  两类5取代的苯并咪唑被确定为N-甲基-d-天冬氨酸（NMDA）受体NR2B亚型的有效拮抗剂。所选化合物与NMDA受体的NR2A，NR2C和NR2D亚型以及hERG通道活性和α（1）-肾上腺素结合相比显示出非常好的选择性。苯并咪唑37a在大鼠角叉菜胶诱导的机械性痛觉过敏试验中显示出色的活性，并且在狗中显示出良好的药代动力学行为。