3-(3,4-dimethoxyphenyl)-2,5-dimethyl-N,N-dipropylpyrazolo[1,5-a]pyrimidin-7-amine

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 唑类
• 英文名称: 3-(3,4-dimethoxyphenyl)-2,5-dimethyl-N,N-dipropylpyrazolo[1,5-a]pyrimidin-7-amine
• 化学式: C₂₂H₃₀N₄O₂
• 分子量: 382.506
• InChiKey: PSZAYCHZZLVXSX-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  4.9
• 重原子数：
  28
• 可旋转键数：
  8
• 环数：
  3.0
• sp3杂化的碳原子比例：
  0.45
• 拓扑面积：
  51.9
• 氢给体数：
  0
• 氢受体数：
  5

反应信息

• 作为产物：
  描述：

  3,4-二甲氧基苯乙腈 在 盐酸肼 、 sodium hydride 、 三氯氧磷 作用下， 以 四氢呋喃 、 1,4-二氧六环 、 乙醇 为溶剂， 生成 3-(3,4-dimethoxyphenyl)-2,5-dimethyl-N,N-dipropylpyrazolo[1,5-a]pyrimidin-7-amine
  参考文献：
  名称：

  Optimization of 3-phenylpyrazolo[1,5- a ]pyrimidines as potent corticotropin-releasing factor-1 antagonists with adequate lipophilicity and water solubility

  摘要：

  In our efforts to identify potent CRF1 antagonists with proper physicochemical properties, a series of 3-phenylpyrazolo[1,5-a]pyrimidines bearing polar groups, such as amino, hydroxyl, methoxy, sulfoxide, were designed and synthesized. Several positions of the core structure were identified, where a polar group was tolerated with slight reduction in receptor binding. NBI 30545 (18n) was found to have good binding affinity and potent antagonistic activity at the human CRF1 receptor. Moreover, this compound had proper lipophilicity (log D = 2.78) and good solubility in water (>10 mg/mL), and exhibited good plasma and brain exposure when given orally. (C) 2004 Elsevier Ltd. All rights reserved.

  DOI：

  10.1016/j.bmcl.2004.05.019

文献信息

• Phenoxide leaving group SNAr strategy for the facile preparation of 7-amino-3-aryl pyrazolo[1,5-a]pyrimidines from a 3-bromo-7-phenoxypyrazolo[1,5-a]pyrimidine intermediate
  作者：John G. Catalano、Vishwanath Gaitonde、Mallesh Beesu、Anna L. Leivers、J. Brad Shotwell

  DOI：10.1016/j.tetlet.2015.09.068

  日期：2015.10

  We have discovered a 3-bromo-7-phenoxypyrazolo[1,5-a]pyrimidine intermediate that allows for the direct sequential funtionalization of the 3-position and 7-position of a pyrazolo[1,5-a]pyrimidine scaffold. The intermediate and general method described herein offer an improvement over prior methods, particularly in cases where multiple unique 3-aryl substituents are to be incorporated in conjunction

  我们已经发现了3-溴-7-苯氧基吡唑并[1,5-a]嘧啶中间体，该中间体允许吡唑并[1,5-a]嘧啶支架的3位和7位直接顺序功能化。本文所述的中间方法和一般方法提供了对现有方法的改进，特别是在多个独特的3-芳基取代基与多个独特的7-氨基取代基结合引入的情况下。