4-(3-bromo-2-methylpropyl)-1,2-dimethoxybenzene | 21727-03-7

• 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: 4-(3-bromo-2-methylpropyl)-1,2-dimethoxybenzene
• CAS: 21727-03-7
• 化学式: C₁₂H₁₇BrO₂
• 分子量: 273.17
• InChiKey: RQTGJHWUJPHWMF-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  3.3
• 重原子数：
  15
• 可旋转键数：
  5
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.5
• 拓扑面积：
  18.5
• 氢给体数：
  0
• 氢受体数：
  2

反应信息

• 作为反应物：
  描述：

  4-(3-bromo-2-methylpropyl)-1,2-dimethoxybenzene 在 氯化亚砜 、 四氯化锡 、 sodium nitrite 作用下， 以 二氯甲烷 、 N,N-二甲基甲酰胺 、 苯 为溶剂， 反应 16.5h， 生成 Methyl 2-[4,5-dimethoxy-2-(2-methyl-3-nitropropyl)benzoyl]benzoate
  参考文献：
  名称：

  Probing the Steric Space at the Floor of the D₁ Dopamine Receptor Orthosteric Binding Domain: 7α-, 7β-, 8α-, and 8β-Methyl Substituted Dihydrexidine Analogues

  摘要：

  To probe the space at the floor of the orthosteric ligand binding site in the dopamine D-1 receptor, four methylated analogues of dihydrexidine (DHX) were synthesized with substitutions at the 7 and 8 positions. The 8 alpha-axial, 8 beta-equatorial, and 7 alpha-equatorial were synthesized by photochemical cyclization of appropriately substituted N-benzoyl enamines, and the 7 beta-axial analogue was prepared by an intramolecular Henry reaction. All of the methylated analogues displayed losses in affinity when compared to DHX (20 nM): 8 beta-Me-ax-DHX (270 nM), 8 alpha-Me-eq-DHX (920 nM), 7 beta-Me-eq-DHX (6540 nM), and 7 alpha-Me-ax-DFLX (>10000 nM). Molecular modeling studies suggest that although the disruption of an aromatic interaction between Phe203(54.7) and Phe288(6.51) is the cause for the 14-fold loss in affinity associated with 8 beta-axial substitution, unfavorable steric interactions with Ser107(3.36) result in the more dramatic decreases in binding affinity suffered by the rest of the analogues.

  DOI：

  10.1021/jm200334c
• 作为产物：
  描述：

  2-methyl-3-(3,4-dimethoxyphenyl)acrylic acid 在 四溴化碳 、 nickel/aluminium alloy 、 三苯基膦 、 sodium hydroxide 、 diborane(6) 作用下， 以 四氢呋喃 、 二氯甲烷 、 水 为溶剂， 反应 2.0h， 生成 4-(3-bromo-2-methylpropyl)-1,2-dimethoxybenzene
  参考文献：
  名称：

  Probing the Steric Space at the Floor of the D₁ Dopamine Receptor Orthosteric Binding Domain: 7α-, 7β-, 8α-, and 8β-Methyl Substituted Dihydrexidine Analogues

  摘要：

  To probe the space at the floor of the orthosteric ligand binding site in the dopamine D-1 receptor, four methylated analogues of dihydrexidine (DHX) were synthesized with substitutions at the 7 and 8 positions. The 8 alpha-axial, 8 beta-equatorial, and 7 alpha-equatorial were synthesized by photochemical cyclization of appropriately substituted N-benzoyl enamines, and the 7 beta-axial analogue was prepared by an intramolecular Henry reaction. All of the methylated analogues displayed losses in affinity when compared to DHX (20 nM): 8 beta-Me-ax-DHX (270 nM), 8 alpha-Me-eq-DHX (920 nM), 7 beta-Me-eq-DHX (6540 nM), and 7 alpha-Me-ax-DFLX (>10000 nM). Molecular modeling studies suggest that although the disruption of an aromatic interaction between Phe203(54.7) and Phe288(6.51) is the cause for the 14-fold loss in affinity associated with 8 beta-axial substitution, unfavorable steric interactions with Ser107(3.36) result in the more dramatic decreases in binding affinity suffered by the rest of the analogues.

  DOI：

  10.1021/jm200334c

文献信息

• Probing the Steric Space at the Floor of the D₁ Dopamine Receptor Orthosteric Binding Domain: 7α-, 7β-, 8α-, and 8β-Methyl Substituted Dihydrexidine Analogues
  作者：Juan Pablo Cueva、Alejandra Gallardo-Godoy、Jose I. Juncosa、Pierre A. Vidi、Markus A. Lill、Val J. Watts、David E. Nichols

  DOI：10.1021/jm200334c

  日期：2011.8.11

  To probe the space at the floor of the orthosteric ligand binding site in the dopamine D-1 receptor, four methylated analogues of dihydrexidine (DHX) were synthesized with substitutions at the 7 and 8 positions. The 8 alpha-axial, 8 beta-equatorial, and 7 alpha-equatorial were synthesized by photochemical cyclization of appropriately substituted N-benzoyl enamines, and the 7 beta-axial analogue was prepared by an intramolecular Henry reaction. All of the methylated analogues displayed losses in affinity when compared to DHX (20 nM): 8 beta-Me-ax-DHX (270 nM), 8 alpha-Me-eq-DHX (920 nM), 7 beta-Me-eq-DHX (6540 nM), and 7 alpha-Me-ax-DFLX (>10000 nM). Molecular modeling studies suggest that although the disruption of an aromatic interaction between Phe203(54.7) and Phe288(6.51) is the cause for the 14-fold loss in affinity associated with 8 beta-axial substitution, unfavorable steric interactions with Ser107(3.36) result in the more dramatic decreases in binding affinity suffered by the rest of the analogues.