ethyl 5-amino-1-(4-chlorophenyl)-4-methyl-1H-pyrazole-3-carboxylate | 1015765-45-3

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 唑类
• 英文名称: ethyl 5-amino-1-(4-chlorophenyl)-4-methyl-1H-pyrazole-3-carboxylate
• 英文别名: Ethyl 5-amino-1-(4-chlorophenyl)-4-methylpyrazole-3-carboxylate
• CAS: 1015765-45-3
• 化学式: C₁₃H₁₄ClN₃O₂
• 分子量: 279.726
• InChiKey: YMMKPWZKOHENLY-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  3.1
• 重原子数：
  19
• 可旋转键数：
  4
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.23
• 拓扑面积：
  70.1
• 氢给体数：
  1
• 氢受体数：
  4

反应信息

• 作为反应物：
  描述：

  2,5-二甲氧基四氢呋喃 、 ethyl 5-amino-1-(4-chlorophenyl)-4-methyl-1H-pyrazole-3-carboxylate 在 溶剂黄146 作用下， 反应 1.0h， 以80%的产率得到ethyl 1-(4-chlorophenyl)-4-methyl-5-(1H-pyrrol-1-yl)-1H-pyrazole-3-carboxylate
  参考文献：
  名称：

  Synthesis, Cannabinoid Receptor Affinity, and Molecular Modeling Studies of Substituted 1-Aryl-5-(1H-pyrrol-1-yl)-1H-pyrazole-3-carboxamides

  摘要：

  The new 1-phenyl-5-(1H-pyrrol-1-yl)pyrazole-3-carboxamides were compared with the reference compounds AM251 and SR144528 for cannabinoid hCB(1) and hCB(2) receptor affinity. Compounds bearing 2,4-dichlorophenyl or 2,4-difluorophenyl groups at position 1 and 2,5-dimethylpyrrole moiety at position 5 of the pyrazole nucleus were generally more selective for hCB(1). On the other hand, the N-cyclohexyl group at the 3-carboxamide was the determinant for the hCB2 selectivity, in particular when a 3,4-dichlorophenyl group was also present at position 1. Compound 26 was the most selective ligand for the hCB(1) receptor (K-i (CB2)/K-i (CB1) = 140.7). Derivative 30, the most potent hCB(1) ligand (Ki = 5.6 nM), was equipotent to AM251 and behaved as an inverse agonist in the cAMP assay (EC50 similar to 1 nM). The carbonyl oxygen of both 26 and 30 formed a H-bond with K3.28(192), while the substituents at the nitrogen fitted in a pocket formed by lipophilic residues. This H-bonding interaction was proposed to account for the high affinity for receptors' inactive state and the inverse agonist activity.

  DOI：

  10.1021/jm070566z
• 作为产物：
  描述：

  potassium (2Z)-3-cyano-1-ethoxy-1-oxobut-2-en-2-olate 、 对氯苯肼盐酸盐 在 盐酸 作用下， 以 乙醇 为溶剂， 反应 2.0h， 以89%的产率得到ethyl 5-amino-1-(4-chlorophenyl)-4-methyl-1H-pyrazole-3-carboxylate
  参考文献：
  名称：

  Synthesis, Cannabinoid Receptor Affinity, and Molecular Modeling Studies of Substituted 1-Aryl-5-(1H-pyrrol-1-yl)-1H-pyrazole-3-carboxamides

  摘要：

  The new 1-phenyl-5-(1H-pyrrol-1-yl)pyrazole-3-carboxamides were compared with the reference compounds AM251 and SR144528 for cannabinoid hCB(1) and hCB(2) receptor affinity. Compounds bearing 2,4-dichlorophenyl or 2,4-difluorophenyl groups at position 1 and 2,5-dimethylpyrrole moiety at position 5 of the pyrazole nucleus were generally more selective for hCB(1). On the other hand, the N-cyclohexyl group at the 3-carboxamide was the determinant for the hCB2 selectivity, in particular when a 3,4-dichlorophenyl group was also present at position 1. Compound 26 was the most selective ligand for the hCB(1) receptor (K-i (CB2)/K-i (CB1) = 140.7). Derivative 30, the most potent hCB(1) ligand (Ki = 5.6 nM), was equipotent to AM251 and behaved as an inverse agonist in the cAMP assay (EC50 similar to 1 nM). The carbonyl oxygen of both 26 and 30 formed a H-bond with K3.28(192), while the substituents at the nitrogen fitted in a pocket formed by lipophilic residues. This H-bonding interaction was proposed to account for the high affinity for receptors' inactive state and the inverse agonist activity.

  DOI：

  10.1021/jm070566z

文献信息

• Synthesis, Cannabinoid Receptor Affinity, and Molecular Modeling Studies of Substituted 1-Aryl-5-(1<i>H</i>-pyrrol-1-yl)-1<i>H</i>-pyrazole-3-carboxamides
  作者：Romano Silvestri、Maria Grazia Cascio、Giuseppe La Regina、Francesco Piscitelli、Antonio Lavecchia、Antonella Brizzi、Serena Pasquini、Maurizio Botta、Ettore Novellino、Vincenzo Di Marzo、Federico Corelli

  DOI：10.1021/jm070566z

  日期：2008.3.1

  The new 1-phenyl-5-(1H-pyrrol-1-yl)pyrazole-3-carboxamides were compared with the reference compounds AM251 and SR144528 for cannabinoid hCB(1) and hCB(2) receptor affinity. Compounds bearing 2,4-dichlorophenyl or 2,4-difluorophenyl groups at position 1 and 2,5-dimethylpyrrole moiety at position 5 of the pyrazole nucleus were generally more selective for hCB(1). On the other hand, the N-cyclohexyl group at the 3-carboxamide was the determinant for the hCB2 selectivity, in particular when a 3,4-dichlorophenyl group was also present at position 1. Compound 26 was the most selective ligand for the hCB(1) receptor (K-i (CB2)/K-i (CB1) = 140.7). Derivative 30, the most potent hCB(1) ligand (Ki = 5.6 nM), was equipotent to AM251 and behaved as an inverse agonist in the cAMP assay (EC50 similar to 1 nM). The carbonyl oxygen of both 26 and 30 formed a H-bond with K3.28(192), while the substituents at the nitrogen fitted in a pocket formed by lipophilic residues. This H-bonding interaction was proposed to account for the high affinity for receptors' inactive state and the inverse agonist activity.