5-amino-1-phenyl-3-(3-methoxyphenyl)-1H-pyrazole | 890764-06-4

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 唑类
• 英文名称: 5-amino-1-phenyl-3-(3-methoxyphenyl)-1H-pyrazole
• 英文别名: 3-(3-methoxyphenyl)-1-phenyl-1H-pyrazol-5-amine；5-(3-methoxyphenyl)-2-phenylpyrazol-3-amine
• CAS: 890764-06-4
• 化学式: C₁₆H₁₅N₃O
• mdl: MFCD00114186
• 分子量: 265.315
• InChiKey: JOSMETGXYNXIKO-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  3.2
• 重原子数：
  20
• 可旋转键数：
  3
• 环数：
  3.0
• sp3杂化的碳原子比例：
  0.062
• 拓扑面积：
  53.1
• 氢给体数：
  1
• 氢受体数：
  3

反应信息

• 作为反应物：
  描述：

  5-amino-1-phenyl-3-(3-methoxyphenyl)-1H-pyrazole 、 苯甲酰氯 在 N,N-二异丙基乙胺 作用下， 以 二氯甲烷 为溶剂， 反应 3.0h， 以51%的产率得到N-(1-phenyl-3-(3-methoxyphenyl)-1H-pyrazol-3-yl)benzamide
  参考文献：
  名称：

  Substituent Effects of N-(1,3-Diphenyl-1H-pyrazol-5-yl)benzamides on Positive Allosteric Modulation of the Metabotropic Glutamate-5 Receptor in Rat Cortical Astrocytes

  摘要：

  CDPPB [3-cyano-N-(1,3-diphenyl-1H-pyrazol-5-yl) benzamide] was recently described as the first centrally active, positive allosteric modulator of rat and human metabotropic glutamate receptor (mGluR) mGluR(5) subtype. We explored the structural requirements for potentiation of glutamate-induced calcium release in naturally expressed mGluR5 in cultured rat astrocytes and increasing affinity for the allosteric antagonist binding site by evaluating 50 analogues of CDPPB. In the fluorometric calcium assay, CDPPB exhibited an EC50 value of 77 +/- 15 nM in potentiating mGluR(5)-mediated responses in cortical astrocytes and a K-i value of 3760 ( 430 nM in displacing [H-3] methoxyPEPy binding in membranes of cultured HEK-293 cells expressing rat mGluR5. The structure-activity relationships showed that electronegative aromatic substituents in the para-position of the benzamide moiety of CDPPB increase potency. Both binding and functional activities were further increased with a halogen atom in the ortho-position of the 1-phenyl ring. These effects of substitution do not match those of either aromatic ring of MPEP [2-methyl-6-(phenylethynyl)-pyridine] for the antagonist allosteric binding site. Combination of the optimal substituents and aromatic positions resulted in 4-nitro-N-(1-(2-fluorophenyl)-3-phenyl-1H-pyrazol-5-yl) benzamide (VU-1545) showing K-i) 156 (29 nM and EC50) 9.6 (1.9 nM in the binding and functional assays, respectively.

  DOI：

  10.1021/jm051252j
• 作为产物：
  描述：

  3-甲氧基苯腈 在 盐酸 、 potassium tert-butylate 作用下， 以 苯 为溶剂， 反应 24.33h， 生成 5-amino-1-phenyl-3-(3-methoxyphenyl)-1H-pyrazole
  参考文献：
  名称：

  Substituent Effects of N-(1,3-Diphenyl-1H-pyrazol-5-yl)benzamides on Positive Allosteric Modulation of the Metabotropic Glutamate-5 Receptor in Rat Cortical Astrocytes

  摘要：

  CDPPB [3-cyano-N-(1,3-diphenyl-1H-pyrazol-5-yl) benzamide] was recently described as the first centrally active, positive allosteric modulator of rat and human metabotropic glutamate receptor (mGluR) mGluR(5) subtype. We explored the structural requirements for potentiation of glutamate-induced calcium release in naturally expressed mGluR5 in cultured rat astrocytes and increasing affinity for the allosteric antagonist binding site by evaluating 50 analogues of CDPPB. In the fluorometric calcium assay, CDPPB exhibited an EC50 value of 77 +/- 15 nM in potentiating mGluR(5)-mediated responses in cortical astrocytes and a K-i value of 3760 ( 430 nM in displacing [H-3] methoxyPEPy binding in membranes of cultured HEK-293 cells expressing rat mGluR5. The structure-activity relationships showed that electronegative aromatic substituents in the para-position of the benzamide moiety of CDPPB increase potency. Both binding and functional activities were further increased with a halogen atom in the ortho-position of the 1-phenyl ring. These effects of substitution do not match those of either aromatic ring of MPEP [2-methyl-6-(phenylethynyl)-pyridine] for the antagonist allosteric binding site. Combination of the optimal substituents and aromatic positions resulted in 4-nitro-N-(1-(2-fluorophenyl)-3-phenyl-1H-pyrazol-5-yl) benzamide (VU-1545) showing K-i) 156 (29 nM and EC50) 9.6 (1.9 nM in the binding and functional assays, respectively.

  DOI：

  10.1021/jm051252j

文献信息

• Enantioselective Synthesis of Dihydropyrazolo[3,4‐ <i>b</i> ]pyridin‐6‐ones via N‐Heterocyclic Carbene Catalyzed [3+3] Cycloaddition of <i>α</i> ‐Bromoenals with 5‐Aminopyrazoles
  作者：Yarui Li、Xiaoxia Huang、Jieyin He、Shiyong Peng、Jian Wang、Ming Lang

  DOI：10.1002/adsc.202201335

  日期：2023.2.21

  An N-heterocyclic carbene (NHC) catalyzed asymmetric [3+3] annulation of α-bromoenals with 5-aminopyrazoles is described. Using the established methodology, a structurally diverse set of high value dihydropyrazolo[3,4-b]pyridine-6-ones were efficiently constructed in high yields (up to 99%) with excellent enantioselectivities (up to >99%). The easily available starting materials, broad substrate scope

  描述了N-杂环卡宾 (NHC) 催化的α-溴烯醛与 5-氨基吡唑的不对称 [3+3] 环化反应。使用已建立的方法，以高产率（高达 99%）和出色的对映选择性（高达 >99%）有效地构建了一组结构多样的高价值二氢吡唑并[3,4- b ]吡啶-6-酮。易于获得的起始材料、广泛的底物范围、温和的反应条件、优异的产率和对映选择性使该策略对于吡唑并稠合吡啶酮衍生物的不对称构建具有吸引力。