5-(2,4-dichlorophenyl)-6-ethyl-[N-(1-ethyl)propyl]-3-butylpyrazine-2-amine | 1309978-53-7

• 分子结构分类: 有机化合物 - 苯类化合物 - 苯和取代衍生物
• 英文名称: 5-(2,4-dichlorophenyl)-6-ethyl-[N-(1-ethyl)propyl]-3-butylpyrazine-2-amine
• 英文别名: 3-butyl-5-(2,4-dichlorophenyl)-6-ethyl-N-pentan-3-ylpyrazin-2-amine
• CAS: 1309978-53-7
• 化学式: C₂₁H₂₉Cl₂N₃
• 分子量: 394.387
• InChiKey: CXCXCAAOXWLFFR-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  7.4
• 重原子数：
  26
• 可旋转键数：
  9
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.52
• 拓扑面积：
  37.8
• 氢给体数：
  1
• 氢受体数：
  3

反应信息

• 作为产物：
  描述：

  3-氨基戊烷 在 N-溴代丁二酰亚胺(NBS) 、 四(三苯基膦)钯 、 1,3-bis[(diphenylphosphino)propane]dichloronickel(II) 、 sodium carbonate 、 三乙胺 作用下， 以 四氢呋喃 、 丙醇 、 乙二醇二甲醚 、 氯仿 、 水 为溶剂， 反应 35.0h， 生成 5-(2,4-dichlorophenyl)-6-ethyl-[N-(1-ethyl)propyl]-3-butylpyrazine-2-amine
  参考文献：
  名称：

  Discovery of N-(1-Ethylpropyl)-[3-methoxy-5-(2-methoxy-4-trifluoromethoxyphenyl)-6-methyl-pyrazin-2-yl]amine 59 (NGD 98−2): An Orally Active Corticotropin Releasing Factor-1 (CRF-1) Receptor Antagonist

  摘要：

  The design, synthesis, and structure-activity relationships of a novel series of pyrazines, acting as corticotropin releasing factor-1 (CRF-1) receptor antagonists, are described. Synthetic methodologies were developed to prepare a number of substituted pyrazine cores utilizing regioselective halogenation and chemoselective derivatization. Noteworthy, an efficient 5-step synthesis was developed for the lead compound 59 (NGD 98-2), which required no chromatography. Compound 59 was characterized as an orally bioavailable, brain penetrant, and highly selective CRF-1 receptor antagonist. Occupancy of rat brain CRF-1 receptors was quantified using ex vivo receptor occupancy assays, using both brain tissue homogenates as well as brain slices receptor autoradiography. Behaviorally, oral administration of 59 significantly antagonized CRF-induced locomotor activity at doses as low as 10 mg/kg and dose-dependently reduced the restraint stress-induced ACTH increases.

  DOI：

  10.1021/jm200365y

文献信息

• Discovery of <i>N</i>-(1-Ethylpropyl)-[3-methoxy-5-(2-methoxy-4-trifluoromethoxyphenyl)-6-methyl-pyrazin-2-yl]amine <b>59</b> (NGD 98−2): An Orally Active Corticotropin Releasing Factor-1 (CRF-1) Receptor Antagonist
  作者：Kevin J. Hodgetts、Ping Ge、Taeyoung Yoon、Stéphane De Lombaert、Robbin Brodbeck、Michael Gulianello、Andrzej Kieltyka、Raymond F. Horvath、John H. Kehne、James E. Krause、George D. Maynard、Diane Hoffman、Younglim Lee、Laurence Fung、Dario Doller

  DOI：10.1021/jm200365y

  日期：2011.6.23

  The design, synthesis, and structure-activity relationships of a novel series of pyrazines, acting as corticotropin releasing factor-1 (CRF-1) receptor antagonists, are described. Synthetic methodologies were developed to prepare a number of substituted pyrazine cores utilizing regioselective halogenation and chemoselective derivatization. Noteworthy, an efficient 5-step synthesis was developed for the lead compound 59 (NGD 98-2), which required no chromatography. Compound 59 was characterized as an orally bioavailable, brain penetrant, and highly selective CRF-1 receptor antagonist. Occupancy of rat brain CRF-1 receptors was quantified using ex vivo receptor occupancy assays, using both brain tissue homogenates as well as brain slices receptor autoradiography. Behaviorally, oral administration of 59 significantly antagonized CRF-induced locomotor activity at doses as low as 10 mg/kg and dose-dependently reduced the restraint stress-induced ACTH increases.