N-(2-(1H-indol-3-yl)ethyl)cyclopropanecarboxamide | 156997-88-5

• 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: N-(2-(1H-indol-3-yl)ethyl)cyclopropanecarboxamide
• 英文别名: N-[2-(1H-indol-3-yl)ethyl]cyclopropanecarboxamide
• CAS: 156997-88-5
• 化学式: C₁₄H₁₆N₂O
• mdl: MFCD00245465
• 分子量: 228.294
• InChiKey: PSCPACQGRRXTCA-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  2.3
• 重原子数：
  17
• 可旋转键数：
  4
• 环数：
  3.0
• sp3杂化的碳原子比例：
  0.357
• 拓扑面积：
  44.9
• 氢给体数：
  2
• 氢受体数：
  1

反应信息

• 作为反应物：
  描述：

  N-(2-(1H-indol-3-yl)ethyl)cyclopropanecarboxamide 在 sodium tetrahydroborate 、 三氯氧磷 作用下， 以 甲醇 、 乙腈 为溶剂， 反应 24.0h， 生成 (+/-)-harmacine
  参考文献：
  名称：

  通过环丙基亚胺重排轻松实现两步合成香脆A和甜菜碱

  摘要：

  报道了4和8的合成。这些中间体是通过Bischler Napieralski反应分别通过一锅串联串联1和6获得的，然后进行环丙基亚胺重排。用甲醇中的硼氢化钠将化合物4和8还原，得到具有细胞毒性的生物碱（±）-crispine A和抗精神分裂症化合物（±）-harmicine。

  DOI：

  10.1016/j.tetlet.2011.05.117
• 作为产物：
  描述：

  色胺盐酸盐 、 环丙基甲酰氯 在 potassium carbonate 作用下， 以 氯仿 、 水 为溶剂， 反应 1.0h， 以86%的产率得到N-(2-(1H-indol-3-yl)ethyl)cyclopropanecarboxamide
  参考文献：
  名称：

  新型萘和生物立体异构相关的酰胺衍生物作为褪黑激素受体配体的合成与构效关系。

  摘要：

  先前的论文报道了褪黑激素受体配体的合成。为了完成结构-活性关系并获得褪黑激素受体的拮抗剂，已经合成了一系列新的褪黑激素萘类似物。修饰包括7-甲氧基的缺失，乙烯部分的取代，生物等位基因的取代酰胺功能，以及其他双环取代的萘核。几乎所有的结构修饰都会导致对褪黑激素受体的亲和力下降。但是，Nn丙基脲衍生物（27）在该受体上是非常有效的配体（pKi = 14.3）。最有趣的是，甲氧基的缺失导致了该系列的第一个拮抗剂。该分子，化合物12

  DOI：

  10.1016/s0968-0896(98)00147-3

文献信息

• First reported propylphosphonic anhydride (T3P®) mediated Robinson–Gabriel cyclization. Synthesis of natural and unnatural 5-(3-indolyl)oxazoles
  作者：Tímea Szabó、András Dancsó、Péter Ábrányi-Balogh、Balázs Volk、Mátyás Milen

  DOI：10.1016/j.tetlet.2019.04.024

  日期：2019.5

  In the present work, a propylphosphonic anhydride (T3P®) assisted Robinson–Gabriel cyclization of N-acyl-β-oxotryptamines for the synthesis of 2-substituted-5-(3-indolyl)oxazoles has been developed. The reactions proceeded smoothly in acetonitrile under microwave irradiation, and the product isolation required only an extraction and subsequent crystallization; no chromatography was necessary. The desired

  在目前的工作中，丙基膦酸酐（T3P ®）辅助的罗宾逊-加布里埃尔环化Ñ酰基-β-oxotryptamines为2-取代-5-（3-吲哚基）恶唑已经开发的合成。在微波辐射下，反应在乙腈中顺利进行，产物的分离仅需萃取并随后结晶。无需层析。以良好至优异的产率获得了所需的产物。
• Discovery of tetrahydro-β-carboline- and indole-based derivatives as promising phosphodiesterase-4 inhibitors: Synthesis, biological evaluation, and molecular modeling studies
  作者：Khaled M. Darwish、Ahmad Abdelwaly、Asmaa M. Atta、Mohamed A. Helal

  DOI：10.1016/j.molstruc.2021.131491

  日期：2022.1

  pocket (Q) includes the invariant purine-selective Gln443 which is critical for cAMP. Below this Gln443 lies Phe446 which acts as a hydrophobic P-clamp stabilizing the ligand aromatic ring system. Molecular docking investigation showed preferential anchoring of the active compounds within the PDE4 active site through interactions between the indole nitrogens and the dimethoxy phenyl groups with key residues

  磷酸二酯酶-4 (PDE4) 负责选择性降解 cAMP 的 3ʹ-环状磷酸键。合成了 23 种不同的 1,2,3,4-叔氢-β-咔啉-和吲哚基类似物的集合，并评估了它们对人 PDE4 的抑制活性。这些化合物使用简单的方法制备，并使用1 H-和13 C NMR、IR、质谱以及元素分析进行​​表征。15 种制备的化合物表现出显着的抑制活性，IC 50低微摩尔至高纳摩尔范围内的值。与相关酶家族成员 PDE5 相比，活性最强的化合物对 PDE4 也表现出良好的选择性，对后一种酶的抑制作用微乎其微或无效。基于吲哚的化合物21b和21c显示出最显着的 PDE4 抑制作用，IC 50值分别为 754 和 664 nM。PDE4B 活性位点包括疏水和溶剂填充的口袋。疏水袋 (Q) 包括不变的嘌呤选择性 Gln443，这对 cAMP 至关重要。在此 Gln443 下方是 Phe446，它充当稳定配体芳环系统的疏水性
• Direct Access to Quinazolines and Pyrimidines from Unprotected Indoles and Pyrroles through Nitrogen Atom Insertion
  作者：Julia C. Reisenbauer、Ann-Sophie K. Paschke、Jelena Krizic、Bence B. Botlik、Patrick Finkelstein、Bill Morandi

  DOI：10.1021/acs.orglett.3c03264

  日期：2023.12.1

  single-atom insertion reactions have opened up new synthetic approaches for molecular diversification. Developing innovative strategies to directly transform biologically relevant molecules, without any prefunctionalization, is key to further expanding the scope and utility of such transformations. Herein, the direct access to quinazolines and pyrimidines from the corresponding unprotected 1H-indoles

  单原子插入反应的最新进展为分子多样化开辟了新的合成方法。开发创新策略来直接转化生物学相关分子，而不进行任何预功能化，是进一步扩大此类转化的范围和效用的关键。在此，报道了从相应的未保护的1H-吲哚和1H-吡咯直接获得喹唑啉和嘧啶，依赖于双（三甲基甲硅烷基）氨基锂（LiHMDS）作为新型氮原子源与市售的氮原子源的结合。高价碘试剂。该策略在后期环境中的进一步应用表明了其在领先结构多元化活动中的潜力。
• Synthesis of Nb-Acyltryptamines and Their 1-Hydroxy-tryptamine Derivatives as New α2-Blockers
  作者：Masanori Somei、Koji Yamada、Yoshio Tanaka

  DOI：10.3987/com-08-s(d)29

  日期：——

  N-b-Acyl- and N-b-acyl-1-hydroxytryptamines are found to be novel and structurally simple alpha(2)-blocker for the treatment of erectile dysfunction.
• 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.