2-(10-methoxy-5,6-dihydroindolo[2,1-a]isoquinolin-12-yl)-1-ethanamine | 263865-47-0

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 吲哚及其衍生物
• 英文名称: 2-(10-methoxy-5,6-dihydroindolo[2,1-a]isoquinolin-12-yl)-1-ethanamine
• 英文别名: 2-(10-Methoxy-5,6-dihydroindolo[2,1-a]isoquinolin-12-yl)ethanamine
• CAS: 263865-47-0
• 化学式: C₁₉H₂₀N₂O
• 分子量: 292.381
• InChiKey: SOXABPRTZMKRHQ-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  2.9
• 重原子数：
  22
• 可旋转键数：
  3
• 环数：
  4.0
• sp3杂化的碳原子比例：
  0.26
• 拓扑面积：
  40.2
• 氢给体数：
  1
• 氢受体数：
  2

反应信息

• 作为反应物：
  描述：

  丁酸酐 、 2-(10-methoxy-5,6-dihydroindolo[2,1-a]isoquinolin-12-yl)-1-ethanamine 在 三乙胺 作用下， 以 四氢呋喃 为溶剂， 反应 3.0h， 以59%的产率得到N-[2-(10-Methoxy-5,6-dihydro-indolo[2,1-a]isoquinolin-12-yl)-ethyl]-butyramide
  参考文献：
  名称：

  Mapping the Melatonin Receptor. 6. Melatonin Agonists and Antagonists Derived from 6H-Isoindolo[2,1-a]indoles, 5,6-Dihydroindolo[2,1-a]isoquinolines, and 6,7-Dihydro-5H-benzo[c]azepino[2,1-a]indoles

  摘要：

  6H-Isoindolo[2,1-a]indoles (5, 7, 10, 13), 5,6-dihydroindolo[2,1-a]isoquinolines (20, 21), and 6,7-dihydro-5H-benzo[c]azepino[2,1-a]indoles (23, 25, 27, 30) have been prepared as melatonin analogues to investigate the nature of the binding site of the melatonin receptor. The affinity of analogues was determined in a radioligand binding assay using cloned human mt(1) and MT2 receptor subtypes expressed in NIH 3T3 cells. Agonist and antagonist potency was measured using the pigment aggregation response of a clonal line of Xenopus laevis melanophores. The 2-methoxyisoindolo[2,1-a]indoles (7a-d) showed much higher binding affinities than the parent isoindoles (5a-e), and whereas 7a-c were agonists in the functional assay, 7d and 5a-e were antagonists. The 2-ethoxyisoindolo[2,1-a]indoles (10a-d) showed reduced binding affinities compared to their methoxy analogues, while the 5-chloro derivative 13 showed a considerable reduction in binding affinity and potency compared to 7a. The 10-methoxy-5,6-dihydroindolo[2,1-a]isoquinolines (21a-c) had higher binding affinities than the corresponding parent indoloisoquinolines (20a-c) in the human receptor subtypes, and the parent compounds were antagonists whereas the 10-methoxy derivatives were agonists in the functional assay. The N-cyclobutanecarbonyl derivatives of both the parent (20d) and 10-methoxyl (21d) series had similar binding affinities and were both antagonists with similar potencies. The 11-methoxy-6,7-5H-benzo[c]azepino[2,1-a]indoles (25a-d) had higher binding affinities than the corresponding parent compounds (23a-d) at the MT2 receptor but similar affinities at the mt(1) site; all of the compounds were antagonists in the functional assay. Changing 11-methoxy for 11-ethoxy decreased the binding affinity slightly, and this was more evident at the MT2 receptor. All of the derivatives investigated had either the same or a greater affinity for the human MT2 receptor compared to the mt(1) receptor (range 1:1-1:132). This suggests that the mt(1) and MT2 receptor pockets differ in their ability to accommodate alkyl groups in the indole nitrogen region of the melatonin molecule. Two compounds (7c and 25c) were tested in functional assays on recombinant mt(1) and MT2 melatonin receptors. Compound 7c is a potent agonist with some selectivity (44-fold) for the MT2 receptor, while 25c is an MT2-preferring antagonist. Increasing the carbon chain length between N-1 of indole and the 2-phenyl group from n = 1 through n = 3 leads to a fairly regular decrease in the binding affinity, but, remarkably, when n = 3, it converts the methoxy compounds from melatonin agonists to antagonists. The Xenopus melatonin receptor thus cannot accommodate an N-n-alkyl chain attached to a 2-phenyl substituent with n > 2 in the required orientation to induce or stabilize the active receptor conformation.

  DOI：

  10.1021/jm980684+
• 作为产物：
  描述：

  邻溴苯乙酸 在 吡啶 、 lithium aluminium tetrahydride 、 四(三苯基膦)钯 、 ammonium acetate 、 potassium acetate 、 potassium carbonate 作用下， 以 四氢呋喃 、 硝基甲烷 、 二氯甲烷 、 N,N-二甲基甲酰胺 、 乙腈 为溶剂， 反应 22.5h， 生成 2-(10-methoxy-5,6-dihydroindolo[2,1-a]isoquinolin-12-yl)-1-ethanamine
  参考文献：
  名称：

  Mapping the Melatonin Receptor. 6. Melatonin Agonists and Antagonists Derived from 6H-Isoindolo[2,1-a]indoles, 5,6-Dihydroindolo[2,1-a]isoquinolines, and 6,7-Dihydro-5H-benzo[c]azepino[2,1-a]indoles

  摘要：

  6H-Isoindolo[2,1-a]indoles (5, 7, 10, 13), 5,6-dihydroindolo[2,1-a]isoquinolines (20, 21), and 6,7-dihydro-5H-benzo[c]azepino[2,1-a]indoles (23, 25, 27, 30) have been prepared as melatonin analogues to investigate the nature of the binding site of the melatonin receptor. The affinity of analogues was determined in a radioligand binding assay using cloned human mt(1) and MT2 receptor subtypes expressed in NIH 3T3 cells. Agonist and antagonist potency was measured using the pigment aggregation response of a clonal line of Xenopus laevis melanophores. The 2-methoxyisoindolo[2,1-a]indoles (7a-d) showed much higher binding affinities than the parent isoindoles (5a-e), and whereas 7a-c were agonists in the functional assay, 7d and 5a-e were antagonists. The 2-ethoxyisoindolo[2,1-a]indoles (10a-d) showed reduced binding affinities compared to their methoxy analogues, while the 5-chloro derivative 13 showed a considerable reduction in binding affinity and potency compared to 7a. The 10-methoxy-5,6-dihydroindolo[2,1-a]isoquinolines (21a-c) had higher binding affinities than the corresponding parent indoloisoquinolines (20a-c) in the human receptor subtypes, and the parent compounds were antagonists whereas the 10-methoxy derivatives were agonists in the functional assay. The N-cyclobutanecarbonyl derivatives of both the parent (20d) and 10-methoxyl (21d) series had similar binding affinities and were both antagonists with similar potencies. The 11-methoxy-6,7-5H-benzo[c]azepino[2,1-a]indoles (25a-d) had higher binding affinities than the corresponding parent compounds (23a-d) at the MT2 receptor but similar affinities at the mt(1) site; all of the compounds were antagonists in the functional assay. Changing 11-methoxy for 11-ethoxy decreased the binding affinity slightly, and this was more evident at the MT2 receptor. All of the derivatives investigated had either the same or a greater affinity for the human MT2 receptor compared to the mt(1) receptor (range 1:1-1:132). This suggests that the mt(1) and MT2 receptor pockets differ in their ability to accommodate alkyl groups in the indole nitrogen region of the melatonin molecule. Two compounds (7c and 25c) were tested in functional assays on recombinant mt(1) and MT2 melatonin receptors. Compound 7c is a potent agonist with some selectivity (44-fold) for the MT2 receptor, while 25c is an MT2-preferring antagonist. Increasing the carbon chain length between N-1 of indole and the 2-phenyl group from n = 1 through n = 3 leads to a fairly regular decrease in the binding affinity, but, remarkably, when n = 3, it converts the methoxy compounds from melatonin agonists to antagonists. The Xenopus melatonin receptor thus cannot accommodate an N-n-alkyl chain attached to a 2-phenyl substituent with n > 2 in the required orientation to induce or stabilize the active receptor conformation.

  DOI：

  10.1021/jm980684+

文献信息

• Mapping the Melatonin Receptor. 8. Selective MT2 Agonists Derived from 5,6‐Dihydroindolo[2,1‐ <i>a</i> ]isoquinolines and Related Systems
  作者：Andrew Tsotinis、Pandelis A. Afroudakis、Ioannis P. Papanastasiou、Aikaterini Sakellaropoulou、Marina Boniakou、Dimitri Komiotis、Peter J. Garratt、Philippe Delagrange、Alina Bocianowska‐Zbrog、David Sugden

  DOI：10.1002/cmdc.202200129

  日期：2022.6.20

  Subtle differences: Aiming at the preparation of ligands selective for melatonin receptors, herein we present the synthesis and biology of new 5,6-dihydroindolo[2,1-a]isoquinoline and indolo[1,2-a]benzoxazine tetracyclic analogues. The results nicely illustrate the subtle differences between the two melatonin receptors, mainly with incremental changes in the side chains of the new ligands.

  细微差别：针对褪黑激素受体选择性配体的制备，本文介绍了新型 5,6-二氢吲哚[2,1- a ]异喹啉和吲哚[1,2 - a ]苯并恶嗪四环类似物的合成和生物学。结果很好地说明了两种褪黑激素受体之间的细微差异，主要是新配体侧链的增量变化。
• Mapping the Melatonin Receptor. 6. Melatonin Agonists and Antagonists Derived from 6<i>H</i>-Isoindolo[2,1-<i>a</i>]indoles, 5,6-Dihydroindolo[2,1-<i>a</i>]isoquinolines, and 6,7-Dihydro-5<i>H</i>-benzo[<i>c</i>]azepino[2,1-<i>a</i>]indoles
  作者：Rüdiger Faust、Peter J. Garratt、Rob Jones、Li-Kuan Yeh、Andrew Tsotinis、Maria Panoussopoulou、Theodora Calogeropoulou、Muy-Teck Teh、David Sugden

  DOI：10.1021/jm980684+

  日期：2000.3.1

  6H-Isoindolo[2,1-a]indoles (5, 7, 10, 13), 5,6-dihydroindolo[2,1-a]isoquinolines (20, 21), and 6,7-dihydro-5H-benzo[c]azepino[2,1-a]indoles (23, 25, 27, 30) have been prepared as melatonin analogues to investigate the nature of the binding site of the melatonin receptor. The affinity of analogues was determined in a radioligand binding assay using cloned human mt(1) and MT2 receptor subtypes expressed in NIH 3T3 cells. Agonist and antagonist potency was measured using the pigment aggregation response of a clonal line of Xenopus laevis melanophores. The 2-methoxyisoindolo[2,1-a]indoles (7a-d) showed much higher binding affinities than the parent isoindoles (5a-e), and whereas 7a-c were agonists in the functional assay, 7d and 5a-e were antagonists. The 2-ethoxyisoindolo[2,1-a]indoles (10a-d) showed reduced binding affinities compared to their methoxy analogues, while the 5-chloro derivative 13 showed a considerable reduction in binding affinity and potency compared to 7a. The 10-methoxy-5,6-dihydroindolo[2,1-a]isoquinolines (21a-c) had higher binding affinities than the corresponding parent indoloisoquinolines (20a-c) in the human receptor subtypes, and the parent compounds were antagonists whereas the 10-methoxy derivatives were agonists in the functional assay. The N-cyclobutanecarbonyl derivatives of both the parent (20d) and 10-methoxyl (21d) series had similar binding affinities and were both antagonists with similar potencies. The 11-methoxy-6,7-5H-benzo[c]azepino[2,1-a]indoles (25a-d) had higher binding affinities than the corresponding parent compounds (23a-d) at the MT2 receptor but similar affinities at the mt(1) site; all of the compounds were antagonists in the functional assay. Changing 11-methoxy for 11-ethoxy decreased the binding affinity slightly, and this was more evident at the MT2 receptor. All of the derivatives investigated had either the same or a greater affinity for the human MT2 receptor compared to the mt(1) receptor (range 1:1-1:132). This suggests that the mt(1) and MT2 receptor pockets differ in their ability to accommodate alkyl groups in the indole nitrogen region of the melatonin molecule. Two compounds (7c and 25c) were tested in functional assays on recombinant mt(1) and MT2 melatonin receptors. Compound 7c is a potent agonist with some selectivity (44-fold) for the MT2 receptor, while 25c is an MT2-preferring antagonist. Increasing the carbon chain length between N-1 of indole and the 2-phenyl group from n = 1 through n = 3 leads to a fairly regular decrease in the binding affinity, but, remarkably, when n = 3, it converts the methoxy compounds from melatonin agonists to antagonists. The Xenopus melatonin receptor thus cannot accommodate an N-n-alkyl chain attached to a 2-phenyl substituent with n > 2 in the required orientation to induce or stabilize the active receptor conformation.