3-methoxy-5,8,9,13b-tetrahydro-6H-isoquino[1,2-a]isoquinoline | 62310-92-3

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 四氢异喹啉
• 英文名称: 3-methoxy-5,8,9,13b-tetrahydro-6H-isoquino[1,2-a]isoquinoline
• 英文别名: 3-methoxy-5,6,8,9-tetrahydro-13bH-dibenzo[a,h]quinolizine；3-methoxy-5,8,9,13b-tetrahydro-6H-isoquino[1,2-a]isoquinoline；3-methoxy-6,8,9,13b-tetrahydro-5H-isoquinolino[1,2-a]isoquinoline
• CAS: 62310-92-3
• 化学式: C₁₈H₁₉NO
• 分子量: 265.355
• InChiKey: WJXQBRZOHAKKTH-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  3.5
• 重原子数：
  20
• 可旋转键数：
  1
• 环数：
  4.0
• sp3杂化的碳原子比例：
  0.33
• 拓扑面积：
  12.5
• 氢给体数：
  0
• 氢受体数：
  2

反应信息

• 作为反应物：
  描述：

  3-methoxy-5,8,9,13b-tetrahydro-6H-isoquino[1,2-a]isoquinoline 在 氨 、 氢溴酸 、 sodium 作用下， 以 乙醇 、 丙酮 为溶剂， 反应 22.0h， 生成 LE 404
  参考文献：
  名称：

  Dopamine/Serotonin Receptor Ligands. 10: SAR Studies on Azecine-type Dopamine Receptor Ligands by Functional Screening at Human Cloned D₁, D_2L, and D₅ Receptors with a Microplate Reader Based Calcium Assay Lead to a Novel Potent D₁/D₅ Selective Antagonist

  摘要：

  On the basis of the benz[d]indolo[2,3-g]azecine derivative I (LE300), structure-activity relations were investigated in order to identify the pharmacophore in this new class of ligands. Various structural modifications were performed and the inhibitory activities at human cloned D-1, D-2L, and D-5 receptors were measured by using a simple fluorescence microplate reader based calcium assay. Subsequently, the affinities of active compounds were estimated by radioligand binding experiments. Deleting one of the aromatic rings as well as replacing it by a phenyl moiety abolishes the inhibitory activities almost completely. Contraction of the 10-membered central ring decreases them significantly. The replacement of indole by thiophene or N-methylpyrrole reduces the inhibitory activity, whereas replacing the indole by benzene increases it. Finally, the hydroxylated dibenz[d,g]azecine derivative 11d (LE404) was found to be more active than the lead I in the functional calcium assay as well as in radioligand displacement experiments.

  DOI：

  10.1021/jm050846j
• 作为产物：
  描述：

  (3-(2-氨基乙基)苯基)甲醇 在 吡啶 、 氢氧化钾 、 sodium tetrahydroborate 、 三氯氧磷 作用下， 以 甲醇 、 乙醇 、 氯仿 、 乙腈 为溶剂， 生成 3-methoxy-5,8,9,13b-tetrahydro-6H-isoquino[1,2-a]isoquinoline
  参考文献：
  名称：

  Dopamine/Serotonin Receptor Ligands. 12:  SAR Studies on Hexahydro-dibenz[d,g]azecines Lead to 4-Chloro-7-methyl-5,6,7,8,9,14-hexahydrodibenz[d,g]azecin-3-ol, the First Picomolar D₅-Selective Dopamine-Receptor Antagonist

  摘要：

  Hydroxylated, methoxylated, and/or chlorinated 7-methyl-5,6,7,8,9,14-hexahydrodibenz[d,g]azecines were generally synthesized out of substituted 2-phenylethylamines and isochromanones by Bischler-Napieralski cyclization of the resulting benzamides to dibenzoquinolizines and the quaternization and cleavage of the central C-N bond under Birch conditions. Chlorination of 2-phenylethylamines was useful for the site direction of cyclization, but chlorine atoms were removed under Birch conditions so that chlorination had to be repeated to get the respective chlorinated dibenz[dg]azecines. The target compounds were tested for their affinity at the different human-cloned dopamine-receptor subtypes (D-1 family, D-2 family). Generally, hydroxylation and chlorination of the dibenz-azecines increased affinities significantly. 1-Chloro-2-hydroxyhexahydro-dibenz[d,g]azecine was a subnanomolar antagonist at both subtype families. 4-Chloro-3-hydroxy7-methyl-5,6,7,8,9,14-hexahydro-dibenz[d,g]azecine was identified as the most potent and selective dopamine D-5 receptor ligand described to date with K-i(D-1) = 0.83, K-i(D-2L) = 4.0, K-i(D-3) = 24.6, K-i(D-4) = 5.2 nM, and K-i(D-5) = 57 pM (radioligand binding experiments), respectively.

  DOI：

  10.1021/jm051237e

文献信息

• Dopamine/Serotonin Receptor Ligands. 10: SAR Studies on Azecine-type Dopamine Receptor Ligands by Functional Screening at Human Cloned D₁, D_2L, and D₅ Receptors with a Microplate Reader Based Calcium Assay Lead to a Novel Potent D₁/D₅ Selective Antagonist
  作者：Barbara Hoefgen、Michael Decker、Patrick Mohr、Astrid M. Schramm、Sherif A. F. Rostom、Hussein El-Subbagh、Peter M. Schweikert、Dirk R. Rudolf、Matthias U. Kassack、Jochen Lehmann

  DOI：10.1021/jm050846j

  日期：2006.1.1

  On the basis of the benz[d]indolo[2,3-g]azecine derivative I (LE300), structure-activity relations were investigated in order to identify the pharmacophore in this new class of ligands. Various structural modifications were performed and the inhibitory activities at human cloned D-1, D-2L, and D-5 receptors were measured by using a simple fluorescence microplate reader based calcium assay. Subsequently, the affinities of active compounds were estimated by radioligand binding experiments. Deleting one of the aromatic rings as well as replacing it by a phenyl moiety abolishes the inhibitory activities almost completely. Contraction of the 10-membered central ring decreases them significantly. The replacement of indole by thiophene or N-methylpyrrole reduces the inhibitory activity, whereas replacing the indole by benzene increases it. Finally, the hydroxylated dibenz[d,g]azecine derivative 11d (LE404) was found to be more active than the lead I in the functional calcium assay as well as in radioligand displacement experiments.
• Bivalent 5,8,9,13b-tetrahydro-6H-isoquino[1,2-a]isoquinolines and -isoquinolinium salts: Novel heterocyclic templates for butyrylcholinesterase inhibitors
  作者：Maria Schulze、Oliver Siol、Michael Decker、Jochen Lehmann

  DOI：10.1016/j.bmcl.2010.03.011

  日期：2010.5

  Three different types of homobivalent compounds, 5,8,9,13b-tetrahydro-6H-isoqino[1,2-a]isoquinolines bearing tertiary N-atoms, their quaternary ammonium salts and their dibenzazecine analogues, connected by alkylene spacers of various lengths were synthesized. Compared to the therapeutically used inhibitor galanthamine, some of the bivalent compounds showed much higher inhibitory activities at both cholinesterases in the Ellman test. Surprisingly, not only the quaternary salts, but also the uncharged tertiary compounds exhibited IC50 values at butyrylcholinesterase in the nanomolar range. Selectivity toward BChE of up to 76-fold was observed. (C) 2010 Elsevier Ltd. All rights reserved.
• Nagarajan, K.; Talwalker, P. K.; Kulkarni, C. L., Indian Journal of Chemistry - Section B Organic and Medicinal Chemistry, 1985, vol. 24, p. 83 - 97
  作者：Nagarajan, K.、Talwalker, P. K.、Kulkarni, C. L.、Shah, R. K.、Shenoy, S. J.、Prabhu, S. S.

  DOI：——

  日期：——
• Synthesis and Reactivity of Dibenz[d,g]azecin-14(5H)-ones
  作者：Michael Decker、Patrick Mohr、Jochen Lehmann

  DOI：10.3987/com-06-10681

  日期：——
• Optimized synthesis of new LE404-derived azecine-prodrugs
  作者：Stephanie Zergiebel、Hans-Dieter Arndt、Andreas Seeling

  DOI：10.1016/j.tetlet.2017.08.007

  日期：2017.9

  Dibenzoazecines represent a class of high-affinity dopamine and serotonin receptor antagonists. The former synthesis of the lead structure 7-methyl-5,6,7,8,9,14-hexahydrodibenzo[d,g]azecin-3-ol (LE404) has been 5 steps with a total yield of 13%. The present work enabled the synthesis of LE404 with a much higher yield. Based on this research, further azecin derivatives were synthesized with the aim to improve pharmacokinetic parameters. (C) 2017 Elsevier Ltd. All rights reserved.