[(18)F]FFPeAU | 1058146-64-7

• 分子结构分类: 有机化合物 - 核苷、核苷酸和类似物 - 嘧啶核苷
• 英文名称: [(18)F]FFPeAU
• 英文别名: 5-(5-(18F)fluoranylpentyl)-1-[(2R,3S,4R,5R)-3-fluoro-4-hydroxy-5-(hydroxymethyl)oxolan-2-yl]pyrimidine-2,4-dione
• CAS: 1058146-64-7
• 化学式: C₁₄H₂₀F₂N₂O₅
• 分子量: 333.322
• InChiKey: FVVJZRISZZWHSX-LAMKGQOLSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  0.6
• 重原子数：
  23
• 可旋转键数：
  7
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.71
• 拓扑面积：
  99.1
• 氢给体数：
  3
• 氢受体数：
  7

反应信息

• 作为产物：
  描述：

  在 甲醇 、 sodium methylate 作用下， 生成 [(18)F]FFPeAU
  参考文献：
  名称：

  Synthesis of 5-Fluoroalkylated Pyrimidine Nucleosides via Negishi Cross-Coupling

  摘要：

  5-Fluoroalkylated pyrimidine nucleosides (1) have potential as therapeutic agents and molecular imaging agents targeting HSV1-tk suicide gene therapy. Thus, straightforward preparation of 5-fluoroalkylated nucleoside derivatives has been developed. Reported herein are the first examples of Pd-catalyzed Negishi cross-coupling of 3-N-benzoyl-3',5'-di-O-benzoyl-5-iodo-2'-deoxyuridine (2a) and 3-N-benzoyl-3',5'-di-O-benzoyl-5-iodo-2'-deoxy-2'-fluoroarabinouridine (2b) with unactivated CSp(3) fluoroalkylzinc bromides. This paper demonstrates the first synthesis of six 5-fluoroalkyl-2'-deoxypyrimidine nucleoside derivatives with three to five methylene chain lengths (5). Furthermore, this methodology has been extended to create a series of 13 5-alkyl-substituted nucleosides, including the target nucleosides 5 and 5-silyloxypropyl and 5-cyanobutyl derivatives.

  DOI：

  10.1021/jo800444y

文献信息

• Synthesis and in Vitro Evaluation of 5-[¹⁸F]Fluoroalkyl Pyrimidine Nucleosides for Molecular Imaging of Herpes Simplex Virus Type 1 Thymidine Kinase Reporter Gene Expression
  作者：Ann-Marie Chacko、Wenchao Qu、Hank F. Kung

  DOI：10.1021/jm800501d

  日期：2008.9.25

  Two novel series of 5-fluoroalkyl-2'-deoxyuridines (FPrDU, FBuDU, FPeDU) and 2'-fluoro-2'-deoxy-5-fluoroalkylarabinouridines (FFPrAU, FFBuAU, FFPeAU) that have three, four, or five methylene units (propyl, butyl, or pentyl) at C-5 were prepared and tested as reporter probes for imaging herpes simplex virus type I thymidine kinase (HSV1-tk) gene expression. The Negishi coupling methodology was employed in efficiently synthesizing the radiolabeling precursors. All six 5-[F-18]fluoroalkyl pyrimidines were readily prepared from 3-N-benzoyl-3',5'-di-O-benzoyl-protected 5-O-mesylate Precursors in 17-35% radiochemical yield (decay-corrected). In vitro studies highlighted that all six [F-18]-labeled nucleosides selectively accumulated in cells expressing the HSV1-TK protein and there was negligible uptake in control cells. [F-18]FPrDU, [F-18]FBuDU, [F-18]FPeDU, and [F-18]FFBuAU had the best uptake profiles. Despite their selective accumulation in HSV1-tk-expressing cells, all 5-fluoroalkyl pyrimidine nucleosides had low-to-negligible cytotoxic activity (CC50 > 1000-1209 mu M). Ultimately, the results demonstrated that 5-[F-18]fluoropropyl, [F-18]fluorobutyl, and [F-18]fluoropentyl pyrimidine nucleosides have the potential to be in vivo HSV1-TK PET reporter probes over a dynamic range of reporter gene expression levels.
• Synthesis of 5-Fluoroalkylated Pyrimidine Nucleosides via Negishi Cross-Coupling
  作者：Ann-Marie Chacko、Wenchao Qu、Hank F. Kung

  DOI：10.1021/jo800444y

  日期：2008.7.1

  5-Fluoroalkylated pyrimidine nucleosides (1) have potential as therapeutic agents and molecular imaging agents targeting HSV1-tk suicide gene therapy. Thus, straightforward preparation of 5-fluoroalkylated nucleoside derivatives has been developed. Reported herein are the first examples of Pd-catalyzed Negishi cross-coupling of 3-N-benzoyl-3',5'-di-O-benzoyl-5-iodo-2'-deoxyuridine (2a) and 3-N-benzoyl-3',5'-di-O-benzoyl-5-iodo-2'-deoxy-2'-fluoroarabinouridine (2b) with unactivated CSp(3) fluoroalkylzinc bromides. This paper demonstrates the first synthesis of six 5-fluoroalkyl-2'-deoxypyrimidine nucleoside derivatives with three to five methylene chain lengths (5). Furthermore, this methodology has been extended to create a series of 13 5-alkyl-substituted nucleosides, including the target nucleosides 5 and 5-silyloxypropyl and 5-cyanobutyl derivatives.