3-(2,3-二甲氧基苯基)-3H-异苯并呋喃-1-酮 | 170244-87-8

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 苯并呋喃
• 中文名称: 3-(2,3-二甲氧基苯基)-3H-异苯并呋喃-1-酮
• 英文名称: 3-(2,3-dimethoxyphenyl)-3H-isobenzofuran-1-one
• 英文别名: 3-(2,3-dimethoxyphenyl)-3H-2-benzofuran-1-one
• CAS: 170244-87-8
• 化学式: C₁₆H₁₄O₄
• 分子量: 270.285
• InChiKey: VTXSFZLCIQOJGO-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  2.6
• 重原子数：
  20
• 可旋转键数：
  3
• 环数：
  3.0
• sp3杂化的碳原子比例：
  0.19
• 拓扑面积：
  44.8
• 氢给体数：
  0
• 氢受体数：
  4

反应信息

• 作为反应物：
  描述：

  3-(2,3-二甲氧基苯基)-3H-异苯并呋喃-1-酮 在 palladium on activated charcoal 氢气 、 溶剂黄146 作用下， 80.0 ℃ 、344.73 kPa 条件下， 反应 8.0h， 以96%的产率得到2-[(2,3-二甲氧基苯基)甲基]苯甲酸
  参考文献：
  名称：

  Synthesis and Evaluation of 6,7-Dihydroxy-2,3,4,8,9,13b-hexahydro-1H-benzo[6,7]cyclohepta[1,2,3-ef][3]benzazepine, 6,7-Dihydroxy-1,2,3,4,8,12b-hexahydroanthr[10,4a,4-cd]azepine, and 10-(Aminomethyl)-9,10-dihydro-1,2-dihydroxyanthracene as Conformationally Restricted Analogs of .beta.-Phenyldopamine

  摘要：

  The present study was designed to define the geometry of the hydrophobic accessory region for binding of dopamine Dr receptor ligands and to assess the relative importance of ethylamine side chain conformation for receptor affinity. Three compounds, 6,7-dihydroxy-2,3,4,8,9,13b-hexahydro-1H-benzo[6,7]cyclohepta[1,2,3-ef][3]benzazepine, 4, 6,7-dihydroxy-1,2,3,4,8,12b-hexahydroanthr[10,4a,4-cd]azepine, 5, and 10-(aminomethyl)-9,10-dihydro-1 2-dihydroxyanthracene, 6, were synthesized as conformationally restricted analogs of beta-phenyldopamine. Molecular modeling studies were performed to compare these three compounds with the high-affinity D-1 agonists dihydrexidine (DHX), 2, and SKF 38393, 3. The beta-phenyl moieties in the target compounds are constrained by means of either an ethyl (4) or methylene (5 and 6) bridge. The compounds adopt minimum-energy conformations in which the beta-phenyl group is approximately -22 degrees (4), -12 degrees (5), and -30 degrees (6) from coplanarity with the catechol ring. These compounds also embody either a freely rotating (6) or a rigidified gauche (4 and 5) rotameric conformation of the dopamine ethylamine side chain, the latter nearly perfectly superimposible on the benzazepine portion of SKF 38393. Radioligand competition experiments showed that compounds 4, 5, and 6 have only micromolar affinity for both the D-1 and D-2 dopamine receptor subtypes. The low affinity of 4-6, relative to 2 and 3, may be due to improper orientation of the beta-phenyl moiety and provides important information about the three-dimensional orientation of the hydrophobic accessory binding domain of the dopamine D-1 receptor. In addition, the negligible affinity of 6, as compared to 2 and 3, indicates that the rotameric positioning of the ethylamine side chain may not be a primary determinant of receptor affinity.

  DOI：

  10.1021/jm00013a015
• 作为产物：
  描述：

  4,4-二甲基-2-苯基-2-噁唑啉 在 盐酸 、 仲丁基锂 作用下， 反应 14.0h， 生成 3-(2,3-二甲氧基苯基)-3H-异苯并呋喃-1-酮
  参考文献：
  名称：

  Synthesis and Evaluation of 6,7-Dihydroxy-2,3,4,8,9,13b-hexahydro-1H-benzo[6,7]cyclohepta[1,2,3-ef][3]benzazepine, 6,7-Dihydroxy-1,2,3,4,8,12b-hexahydroanthr[10,4a,4-cd]azepine, and 10-(Aminomethyl)-9,10-dihydro-1,2-dihydroxyanthracene as Conformationally Restricted Analogs of .beta.-Phenyldopamine

  摘要：

  The present study was designed to define the geometry of the hydrophobic accessory region for binding of dopamine Dr receptor ligands and to assess the relative importance of ethylamine side chain conformation for receptor affinity. Three compounds, 6,7-dihydroxy-2,3,4,8,9,13b-hexahydro-1H-benzo[6,7]cyclohepta[1,2,3-ef][3]benzazepine, 4, 6,7-dihydroxy-1,2,3,4,8,12b-hexahydroanthr[10,4a,4-cd]azepine, 5, and 10-(aminomethyl)-9,10-dihydro-1 2-dihydroxyanthracene, 6, were synthesized as conformationally restricted analogs of beta-phenyldopamine. Molecular modeling studies were performed to compare these three compounds with the high-affinity D-1 agonists dihydrexidine (DHX), 2, and SKF 38393, 3. The beta-phenyl moieties in the target compounds are constrained by means of either an ethyl (4) or methylene (5 and 6) bridge. The compounds adopt minimum-energy conformations in which the beta-phenyl group is approximately -22 degrees (4), -12 degrees (5), and -30 degrees (6) from coplanarity with the catechol ring. These compounds also embody either a freely rotating (6) or a rigidified gauche (4 and 5) rotameric conformation of the dopamine ethylamine side chain, the latter nearly perfectly superimposible on the benzazepine portion of SKF 38393. Radioligand competition experiments showed that compounds 4, 5, and 6 have only micromolar affinity for both the D-1 and D-2 dopamine receptor subtypes. The low affinity of 4-6, relative to 2 and 3, may be due to improper orientation of the beta-phenyl moiety and provides important information about the three-dimensional orientation of the hydrophobic accessory binding domain of the dopamine D-1 receptor. In addition, the negligible affinity of 6, as compared to 2 and 3, indicates that the rotameric positioning of the ethylamine side chain may not be a primary determinant of receptor affinity.

  DOI：

  10.1021/jm00013a015