2-hydroxy-2-(4-nitrophenyl)-2,3-dihydro-1H-imidazo[1,2-a]pyrimidin-4-ium bromide | 1042275-05-7

• 分子结构分类: 有机化合物 - 苯类化合物 - 苯和取代衍生物
• 英文名称: 2-hydroxy-2-(4-nitrophenyl)-2,3-dihydro-1H-imidazo[1,2-a]pyrimidin-4-ium bromide
• 英文别名: 2-(4-Nitrophenyl)-1,3-dihydroimidazo[1,2-a]pyrimidin-4-ium-2-ol;bromide
• CAS: 1042275-05-7
• 化学式: Br*C₁₂H₁₁N₄O₃
• 分子量: 339.148
• InChiKey: VXLUCYUWFSJMDZ-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  -2.45
• 重原子数：
  20
• 可旋转键数：
  1
• 环数：
  3.0
• sp3杂化的碳原子比例：
  0.17
• 拓扑面积：
  94.8
• 氢给体数：
  2
• 氢受体数：
  6

反应信息

• 作为反应物：
  描述：

  2-hydroxy-2-(4-nitrophenyl)-2,3-dihydro-1H-imidazo[1,2-a]pyrimidin-4-ium bromide 在 palladium on activated charcoal 、 氢气 、 一水合肼 作用下， 以 四氢呋喃 、 甲醇 、 乙醇-D1 为溶剂， 反应 8.67h， 生成 tert-butyl 2-amino-4-(4-aminophenyl)-1H-imidazole-1-carboxylate
  参考文献：
  名称：

  Substituted 4-phenyl-2-aminoimidazoles and 4-phenyl-4,5-dihydro-2-aminoimidazoles as voltage-gated sodium channel modulators

  摘要：

  Voltage-gated sodium channels play an integral part in neurotransmission and their dysfunction is frequently a cause of various neurological disorders. On the basis of the structure of marine alkaloid clathrodin, twenty eight new analogs were designed, synthesized and tested for their ability to block human Na(v)1.3, Na(v)1.4 and Na(v)1.7 channels, as well as for their selectivity against human cardiac isoform Na(v)1.5, using automated patch clamp electrophysiological assay. Several compounds exhibited promising activities on different Na-v channel isoforms in the medium micromolar range and some of the compounds showed also moderate isoform selectivities. The most promising results were obtained for the Na(v)1.3 channel, for which four compounds were found to possess IC50 values lower than 15 mu M. All of the active compounds bind to the open-inactivated states of the channels and therefore act as state-dependent modulators. The obtained results validate the approach of using natural products driven chemistry for drug discovery starting points and represent a good foundation for future design of selective Na-v modulators. (C) 2013 Elsevier Masson SAS. All rights reserved.

  DOI：

  10.1016/j.ejmech.2013.12.034
• 作为产物：
  描述：

  1,3,5-三嗪-2,4,6-三胺,N,N'''-1,2-乙二基二[N-[3-[[4,6-二[丁基(2,2,6,6-四甲基-4-哌啶基)氨基]-1,3,5-三嗪-2-基]氨基]丙基]-N,N''-二丁基-N,N''-二(2,2,6,6-四甲基-4-哌啶基)- 、 2-溴-4'-硝基苯乙酮 在 4-二甲氨基吡啶 作用下， 以 乙腈 为溶剂， 反应 0.5h， 以67%的产率得到2-hydroxy-2-(4-nitrophenyl)-2,3-dihydro-1H-imidazo[1,2-a]pyrimidin-4-ium bromide
  参考文献：
  名称：

  A Divergent Synthesis of Substituted 2-Aminoimidazoles from 2-Aminopyrimidines

  摘要：

  A new divergent and efficient synthesis of substituted 2-aminoimidazoles 5 and 6 has been developed starting from the readily available 2-aminopyrimidines 1 and alpha-broinocarbonyl compounds 2, Using conventional heating or microwave irradiation. Thus, the cleavage of 1,2,3-substituted imidazo[1,2-a]pyrimidin-1 -iumsalts 4 with hydrazine or secondary amines led to 1,4,5-trisubstituted 2-aminoimidazoles 5, when the hydrazinolysis of 2-hydroxy-2,3-dihydro-1H-imidazo[1,2-a]pyrimidin-4-ium salts 3, followed by a novel Dimroth-type rearrangement, resulted in formation of 2-amino-1H-imidazoles 6. The relevant pathway of transformations was identified by characterization of the intermediates.

  DOI：

  10.1021/jo8008758

文献信息

• A Divergent Synthesis of Substituted 2-Aminoimidazoles from 2-Aminopyrimidines
  作者：Denis S. Ermolat’ev、Erik V. Van der Eycken

  DOI：10.1021/jo8008758

  日期：2008.9.1

  A new divergent and efficient synthesis of substituted 2-aminoimidazoles 5 and 6 has been developed starting from the readily available 2-aminopyrimidines 1 and alpha-broinocarbonyl compounds 2, Using conventional heating or microwave irradiation. Thus, the cleavage of 1,2,3-substituted imidazo[1,2-a]pyrimidin-1 -iumsalts 4 with hydrazine or secondary amines led to 1,4,5-trisubstituted 2-aminoimidazoles 5, when the hydrazinolysis of 2-hydroxy-2,3-dihydro-1H-imidazo[1,2-a]pyrimidin-4-ium salts 3, followed by a novel Dimroth-type rearrangement, resulted in formation of 2-amino-1H-imidazoles 6. The relevant pathway of transformations was identified by characterization of the intermediates.
• [EN] COMPOUNDS, COMPOSITIONS AND METHODS FOR CONTROLLING BIOFILMS<br/>[FR] COMPOSÉ, COMPOSITIONS ET PROCÉDÉS DE LUTTE CONTRE LES BIOFILMS
  申请人：UNIV LEUVEN KATH

  公开号：WO2011080132A2

  公开（公告）日：2011-07-07

  This invention relates to substituted 2-aminoimidazoles and their imidazo[1,2- a]pyrimidinium salts precursors being active against biofilm formation. The present invention also relates to antimicrobial compositions comprising a microbial biofilm formation inhibiting amount of such substituted 2-aminoimidazoles or imidazo[1,2- a]pyrimidinium salts in combination with excipients. The present invention also relates to methods for inhibiting or controlling microbial biofilm formation in a plant, a body part of a human or an animal, or a surface with which a human or an animal may come into contact.
• Substituted 4-phenyl-2-aminoimidazoles and 4-phenyl-4,5-dihydro-2-aminoimidazoles as voltage-gated sodium channel modulators
  作者：Nace Zidar、Žiga Jakopin、David J. Madge、Fiona Chan、Jan Tytgat、Steve Peigneur、Marija Sollner Dolenc、Tihomir Tomašić、Janez Ilaš、Lucija Peterlin Mašič、Danijel Kikelj

  DOI：10.1016/j.ejmech.2013.12.034

  日期：2014.3

  Voltage-gated sodium channels play an integral part in neurotransmission and their dysfunction is frequently a cause of various neurological disorders. On the basis of the structure of marine alkaloid clathrodin, twenty eight new analogs were designed, synthesized and tested for their ability to block human Na(v)1.3, Na(v)1.4 and Na(v)1.7 channels, as well as for their selectivity against human cardiac isoform Na(v)1.5, using automated patch clamp electrophysiological assay. Several compounds exhibited promising activities on different Na-v channel isoforms in the medium micromolar range and some of the compounds showed also moderate isoform selectivities. The most promising results were obtained for the Na(v)1.3 channel, for which four compounds were found to possess IC50 values lower than 15 mu M. All of the active compounds bind to the open-inactivated states of the channels and therefore act as state-dependent modulators. The obtained results validate the approach of using natural products driven chemistry for drug discovery starting points and represent a good foundation for future design of selective Na-v modulators. (C) 2013 Elsevier Masson SAS. All rights reserved.