Meridianin A

• 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: Meridianin A
• 英文别名: 2-amino-4-(4-hydroxy-1H-indol-3-yl)pyrimidine；3-(2-aminopyrimidin-4-yl)-1H-indol-4-ol
• 化学式: C₁₂H₁₀N₄O
• 分子量: 226.238
• InChiKey: SZOKTSDFOPVLFD-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  1.3
• 重原子数：
  17
• 可旋转键数：
  1
• 环数：
  3.0
• sp3杂化的碳原子比例：
  0.0
• 拓扑面积：
  87.8
• 氢给体数：
  3
• 氢受体数：
  4

反应信息

• 作为产物：
  描述：

  4-甲氧基吲哚 在 4-二甲氨基吡啶 、 四(三苯基膦)钯 、 碘 、 吡啶盐酸盐 、 caesium carbonate 、 三乙胺 、 potassium hydroxide 作用下， 以 1,4-二氧六环 、 甲醇 、 二氯甲烷 、 N,N-二甲基甲酰胺 为溶剂， 反应 20.17h， 生成 Meridianin A
  参考文献：
  名称：

  一锅增田硼化-铃木偶联序列快速合成双（杂）芳基及其在简化子午线A和G的整体合成中的应用† • §

  摘要：

  通过一锅增田（Masuda）硼酸酯化-铃木（Suzuki）偶联序列可以非常简明的方式获得3-（杂）芳基取代的吲哚，7-氮杂吲哚和吡咯。海洋天然产物子午线素A（5）和G（4i）的简洁的总合成很好地说明了该方法的实用性。

  DOI：

  10.1039/c1ob05310h

文献信息

• Protecting-Group-Free Synthesis of Meridianin A–G and Derivatives and Its Antibiofilm Evaluation
  作者：Huidan Geng、Fei Chen、Yonglong Zhao、Bing Guo、Lei Tang、Yuan-Yong Yang

  DOI：10.1021/acs.joc.2c02837

  日期：2023.3.17

  Herein, a protecting-group-free protocol was developed to realize a time and step economy diversification of the Meridianin alkaloid. A broad range of substituents are tolerated to deliver the products in moderate to high yields, and the first synthesis of Meridianin B was achieved. The simplicity of this protocol enables the rapid construction of a Meridianin derivative library for antibiofilm evaluation

  在此，开发了一种无保护基团的方案，以实现 Meridianin 生物碱的时间和步骤经济多样化。广泛的取代基可以以中等到高的产率提供产品，并且实现了 Meridianin B 的首次合成。该协议的简单性使得能够快速构建用于抗生物膜评估的 Meridianin 衍生物库。初步结果表明，经络宁衍生物能够协同抑制鲍曼不动杆菌生物膜并降低抗生素 MIC。
• CNS and antimalarial activity of synthetic meridianin and psammopemmin analogs
  作者：Matthew D. Lebar、Kristopher N. Hahn、Tina Mutka、Patrick Maignan、James B. McClintock、Charles D. Amsler、Alberto van Olphen、Dennis E. Kyle、Bill J. Baker

  DOI：10.1016/j.bmc.2011.08.033

  日期：2011.10

  The marine invertebrate-derived meridianin A. the originally proposed structure for psammopemmin A. and several related 3-pyrimidylindole analogs were synthesized and subsequently investigated for central nervous system, antimalarial, and cytotoxic activity. A Suzuki coupling of an indoleborate ester to the pyrimidine electrophile was utilized to form the natural product and derivatives thereof. The 3-pyrimidineindoles were found to prevent radioligand binding to several CNS receptors and transporters, most notably, serotonin receptors (<0.2 mu M K-i for 5HT(2B)). Two compounds also inhibited the human malaria parasite Plasmodium falciparum (IC50 <50 mu M). Only the natural product was cytotoxic toward A549 cells (IC50 = 15 mu M). (C) 2011 Elsevier Ltd. All rights reserved.
• Synthesis of the indole alkaloids meridianins from the tunicate Aplidium meridianum
  作者：Pilar M Fresneda、Pedro Molina、Juan A Bleda

  DOI：10.1016/s0040-4020(01)00102-8

  日期：2001.3

  The marine natural products meridianins A and C-E have been synthesized for the first time starting from the appropriate N-tosyl-3-acetylindole. A facile two-step conversion of N-tosyl-3-acetylindoles to the corresponding meridianins by treatment with dimethylformamide dimethylacetal and further cyclization of the resulting enaminone with aminoguanidine is described. This method has also been applied for the preparation of the 3-[(2-amino)pyrimidin-4-yl]-7-azaindole. (C) 2001 Elsevier Science Ltd. All rights reserved.
• Rapid synthesis of bis(hetero)aryls by one-pot Masuda borylation–Suzuki coupling sequence and its application to concise total syntheses of meridianins A and G
  作者：Eugen Merkul、Elisabeth Schäfer、Thomas J. J. Müller

  DOI：10.1039/c1ob05310h

  日期：——

  3-(Hetero)aryl substituted indoles, 7-azaindoles, and pyrroles can be obtained in a very concise fashion via a one-pot Masuda borylation–Suzuki coupling sequence. The concise total syntheses of the marine natural products meridianins A (5) and G (4i) nicely illustrate the utility of this methodology.

  通过一锅增田（Masuda）硼酸酯化-铃木（Suzuki）偶联序列可以非常简明的方式获得3-（杂）芳基取代的吲哚，7-氮杂吲哚和吡咯。海洋天然产物子午线素A（5）和G（4i）的简洁的总合成很好地说明了该方法的实用性。