2-[3-(4-Amino-butylamino)-5-chloro-2-oxo-6-phenyl-2H-pyrazin-1-yl]-N-(4-carbamimidoyl-benzyl)-acetamide

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 二嗪类
• 英文名称: 2-[3-(4-Amino-butylamino)-5-chloro-2-oxo-6-phenyl-2H-pyrazin-1-yl]-N-(4-carbamimidoyl-benzyl)-acetamide
• 英文别名: 2-{3-[(4-aminobutyl)amino]-5-chloro-2-oxo-6-phenyl-1,2-dihydropyrazin-1-yl}-N-[(4-carbamimidoylphenyl)methyl]acetamide；2-[3-(4-aminobutylamino)-5-chloro-2-oxo-6-phenylpyrazin-1-yl]-N-[(4-carbamimidoylphenyl)methyl]acetamide
• 化学式: C₂₄H₂₈ClN₇O₂
• 分子量: 481.985
• InChiKey: ACUBJIDFQDSSGJ-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  1.3
• 重原子数：
  34
• 可旋转键数：
  11
• 环数：
  3.0
• sp3杂化的碳原子比例：
  0.25
• 拓扑面积：
  150
• 氢给体数：
  5
• 氢受体数：
  5

反应信息

• 作为产物：
  描述：

  benzyl 2-(3,5-dichloro-2-oxo-6-phenylpyrazin-1(2H)-yl)acetate 在 氢氧化钾 、 三甲基氯硅烷 、 polymer-bound carbodiimide reagent 、 1-羟基苯并三唑 、 sodium iodide 作用下， 以 二氯甲烷 、 N,N-二甲基甲酰胺 、 乙腈 为溶剂， 反应 3.0h， 生成 2-[3-(4-Amino-butylamino)-5-chloro-2-oxo-6-phenyl-2H-pyrazin-1-yl]-N-(4-carbamimidoyl-benzyl)-acetamide
  参考文献：
  名称：

  Design, Parallel Synthesis, and Crystal Structures of Pyrazinone Antithrombotics as Selective Inhibitors of the Tissue Factor VIIa Complex

  摘要：

  Structure-based drug design (SBDD) and polymer-assisted solution-phase (PASP) library synthesis were used to develop a series of pyrazinone inhibitors of the Tissue Factor/Factor Vlla (TF/VIIa) complex. The crystal structure of a tripeptide-alpha-ketothiazole complexed with TF/VIIa was utilized in a docking experiment to identify the pyrazinone core as a starting scaffold. The pyrazinone core could orient the substituents in the correct spatial arrangement to probe the S-1, S-2, and S-3 pockets of the enzyme. A multistep PASP library synthesis was designed to prepare the substituted pyrazinones varying the P-1, P-2, and P-3 moieties. Hundreds of pyrazinone TF/VIIa inhibitors were prepared and tested in several serine protease enzyme assays involved in the coagulation cascade. The inhibitors exhibited modest activity on TF/ VIIa with excellent selectivity over thrombin (Ha) and Factor Xa. The structure-activity relationship of the pyrazinone inhibitors will be discussed and X-ray crystal structures of selected compounds complexed with the TF/VIIa enzyme will be described. This study ultimately led to the synthesis of compound 34, which exhibited 16 nM (IC50) activity on TF/VIIa with >6250x selectivity vs Factor Xa and thrombin. This potent and highly selective inhibitor of TF/VIIa was chosen for preclinical, intravenous proof-of-concept studies to demonstrate the separation between antithrombotic efficacy and bleeding side effects in a nonhuman primate model of electrolytic-induced arterial thrombosis.

  DOI：

  10.1021/jm030131l

文献信息

• Design, Parallel Synthesis, and Crystal Structures of Pyrazinone Antithrombotics as Selective Inhibitors of the Tissue Factor VIIa Complex
  作者：John J. Parlow、Brenda L. Case、Thomas A. Dice、Ricky L. Fenton、Michael J. Hayes、Darin E. Jones、William L. Neumann、Rhonda S. Wood、Rhonda M. Lachance、Thomas J. Girard、Nancy S. Nicholson、Michael Clare、Roderick A. Stegeman、Anna M. Stevens、William C. Stallings、Ravi G. Kurumbail、Michael S. South

  DOI：10.1021/jm030131l

  日期：2003.9.1

  Structure-based drug design (SBDD) and polymer-assisted solution-phase (PASP) library synthesis were used to develop a series of pyrazinone inhibitors of the Tissue Factor/Factor Vlla (TF/VIIa) complex. The crystal structure of a tripeptide-alpha-ketothiazole complexed with TF/VIIa was utilized in a docking experiment to identify the pyrazinone core as a starting scaffold. The pyrazinone core could orient the substituents in the correct spatial arrangement to probe the S-1, S-2, and S-3 pockets of the enzyme. A multistep PASP library synthesis was designed to prepare the substituted pyrazinones varying the P-1, P-2, and P-3 moieties. Hundreds of pyrazinone TF/VIIa inhibitors were prepared and tested in several serine protease enzyme assays involved in the coagulation cascade. The inhibitors exhibited modest activity on TF/ VIIa with excellent selectivity over thrombin (Ha) and Factor Xa. The structure-activity relationship of the pyrazinone inhibitors will be discussed and X-ray crystal structures of selected compounds complexed with the TF/VIIa enzyme will be described. This study ultimately led to the synthesis of compound 34, which exhibited 16 nM (IC50) activity on TF/VIIa with >6250x selectivity vs Factor Xa and thrombin. This potent and highly selective inhibitor of TF/VIIa was chosen for preclinical, intravenous proof-of-concept studies to demonstrate the separation between antithrombotic efficacy and bleeding side effects in a nonhuman primate model of electrolytic-induced arterial thrombosis.