2-(1H-benzimidazol-2-yl)-3-(4-dimethylaminophenyl)acrylonitrile | 57319-74-1

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 苯并咪唑类
• 英文名称: 2-(1H-benzimidazol-2-yl)-3-(4-dimethylaminophenyl)acrylonitrile
• 英文别名: 2-(2-benzimidazolyl)-3-(4-N,N-dimethylaminophenyl)acrylonitrile；2-(1H-benzoimidazol-2-yl)-3-(4-dimethylamino-phenyl)-acrylonitrile；2-(1H-1,3-benzodiazol-2-yl)-3-[4-(dimethylamino)phenyl]prop-2-enenitrile；2-(1H-benzimidazol-2-yl)-3-[4-(dimethylamino)phenyl]prop-2-enenitrile
• CAS: 57319-74-1
• 化学式: C₁₈H₁₆N₄
• 分子量: 288.352
• InChiKey: SHZAKAMMDOHBMT-UHFFFAOYSA-N

物化性质

• 熔点：
  >250 °C
• 沸点：
  533.2±60.0 °C(Predicted)
• 密度：
  1.256±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  3.4
• 重原子数：
  22
• 可旋转键数：
  3
• 环数：
  3.0
• sp3杂化的碳原子比例：
  0.11
• 拓扑面积：
  55.7
• 氢给体数：
  1
• 氢受体数：
  3

反应信息

• 作为反应物：
  描述：

  2-(1H-benzimidazol-2-yl)-3-(4-dimethylaminophenyl)acrylonitrile 在 sodium tetrahydroborate 作用下， 以 乙醇 为溶剂， 反应 2.17h， 以76%的产率得到2-(1H-benzimidazol-2-yl)-3-[4-(dimethylamino)phenyl]propanenitrile
  参考文献：
  名称：

  Unexpected Regiospecific Reduction of the Double Bond by NaBH₄ in 2‐(1‐Methyl/1H‐benzimidazole‐2‐yl)‐3‐aryl‐acrylonitrile

  摘要：

  Condensation of (1H-benzimidazole-2-yl)-acetonitrile 1 with aromatic aldehydes in 5% NaOH solution gave the corresponding 2-(1H-benzimidazole-2-yl)3-aryl-acrylonitrile 2, which on treatment with NaBH4 in ethanol unexpectedly gave 2-(1H-benzimidazole-2-yl)-3-aryl-propionitrile 3 by the regiospecific reduction of the double bond. Shaking a solution of 2 with H-2/Pd-C in methanol also gave 3. Reaction of 2 with DMS gave the corresponding N-methylated analogue 5, which also with NaBH4 gave 6, once again by the regiospecific reduction of the double bond as in the case of 1-demethylated analogue ( i. e., 2).

  DOI：

  10.1080/00397910701397177
• 作为产物：
  描述：

  邻苯二胺 在 哌啶 作用下， 以 乙醇 为溶剂， 反应 7.0h， 生成 2-(1H-benzimidazol-2-yl)-3-(4-dimethylaminophenyl)acrylonitrile
  参考文献：
  名称：

  Design and structure-activity relationships anticandidosic of diazaheteroaryl functionalized by Michaël acceptors

  摘要：

  念珠菌病的管理，曾经有效，但随着各种念珠菌对经典 antifungals 抗药性的增加，变得越来越困难。在这种背景下，我们在之前的研究中报告了新的二氮杂杂环芳烃衍生物的药物化学开发，这些衍生物与 Michael 受体（如芳基丙烯酮、芳基丙烯腈和芳基氰丙烯酮）功能化。这些具有苯并咪唑基-芳基丙烯酮、苯并咪唑基-芳基丙烯腈或苯并咪唑基-芳基氰丙烯酮及咪唑并吡啶基-芳基丙烯酮结构的二氮杂杂环芳烃衍生物通过化学合成获得，然后通过常规的光谱方法（NMR 和 MS）进行表征。这些衍生物的抗念珠菌活性以最小抑制浓度（MIQ）在体外检测，使用了生物自走技术，针对临床株的白色念珠菌进行测试。结果显示，经 Michael 受体功能化的二氮杂杂环芳烃具有显著的活性，IMQ 范围为 10 到 0.16 微克。此外，不同衍生物的抗念珠菌性能与 Michael 受体的性质及在苯环上的结构变化相关。本论文是我们团队十年研究的总结，将涉及药物化学设计、化学合成及整体系列结构-抗念珠菌活性研究，以提出能够发展为抗念珠菌药物候选物的化合物。

  DOI：

  10.21608/ejchem.2021.87021.4207

文献信息

• Ionic tagged amine supported on magnetic nanoparticles: synthesis and application for versatile catalytic Knoevenagel condensation in water
  作者：Anguo Ying、Fangli Qiu、Chenglin Wu、Huanan Hu、Jianguo Yang

  DOI：10.1039/c4ra05540c

  日期：——

  Propylamine modified with imidazolium ionic moiety grafted onto magnetic nanoparticles (MNPs) was prepared and evaluated as a catalyst for Knoevenagel condensation in water at room temperature. The catalyst was efficient in the reaction to give the condensation products in good yields. It is worth noting that the ionic-tagged catalyst performed significantly better than its ionic tag-free counterpart

  制备了用咪唑鎓离子部分改性的丙胺，将其接枝到磁性纳米颗粒（MNP）上，并作为室温下水中Knoevenagel缩合的催化剂进行了评估。该催化剂在反应中有效，以高收率得到缩合产物。值得注意的是，带有离子标记的催化剂的性能明显优于不含离子标记的催化剂。最后，该催化剂可重复使用8次，但催化活性略有下降。
• Choline Chloride and Urea Based Eutectic Solvents: Effective Catalytic Systems for the Knoevenagel Condensation Reactions of Substituted Acetonitriles
  作者：Shuo Liu、Yuxiang Ni、Wenjing Wei、Fangli Qiu、Songlin Xu、Anguo Ying

  DOI：10.3184/174751914x13926483381319

  日期：2014.3

  The Knoevenagel condensation of aromatic aldehydes with active methylene compounds such as malononitrile, ethyl cyanoacetate, benzimidazole-2-acetonitrile and benzothiazole-2-acetonitrile proceeded very smoothly, in a reusable and cheap choline chloride and urea based deep eutectic solvents. Both reaction time and yield are satisfactory. The advantages of this catalyst are that it is readily available

  芳香醛与活性亚甲基化合物如丙二腈、氰基乙酸乙酯、苯并咪唑-2-乙腈和苯并噻唑-2-乙腈的 Knoevenagel 缩合在可重复使用且廉价的氯化胆碱和尿素基低共熔溶剂中进行得非常顺利。反应时间和收率均令人满意。这种催化剂的优点是易得、可生物降解、无毒、成本低且可回收。
• Benzimidazole derivatives related to 2,3-acrylonitriles, benzimidazo[1,2-a]quinolines and fluorenes: Synthesis, antitumor evaluation in vitro and crystal structure determination
  作者：Marijana Hranjec、Gordana Pavlović、Marko Marjanović、Marijeta Kralj、Grace Karminski-Zamola

  DOI：10.1016/j.ejmech.2010.02.022

  日期：2010.6

  A synthesis and biological evaluation of new benzimidazole derivatives, related to 2,3-disubstituted acrylonitriles, benzimidazo[1,2-a]quinoline-6-carbonitriles and heteroaromatic fluorenes was described. The molecular and crystal structures of three compounds 4, 16 and 17 reveal that non-fused fluoro derivative, 4, deviates from planarity by 13.11(2)°, while fused methyl, 16, and fluoro, 17, derivatives

  描述了与2,3-二取代的丙烯腈，苯并咪唑并[1,2 - a ]喹啉-6-腈和杂芳族芴有关的新苯并咪唑衍生物的合成和生物学评价。三种化合物的分子和晶体结构4，16和17表明，非稠合的氟代衍生物，4，平面的偏离由13.11（2）°，而稠合甲基，16，和氟，17，衍生物是内4平面°表现出能够插入双链DNA的平面芳香表面。化合物4以E-异构体存在。 晶体结构证实，氢键的模式主要由弱的C–H⋯N（F）键表征，但在4的情况下，存在的乙醇分子结晶导致N–H⋯O和O–H ⋯N氢键形成。在16和17的晶体结构中，氰基参与氢键的形成，而在4中并非如此。除16和14外，所有化合物均对五种肿瘤细胞系具有显着的抗增殖活性，其中2-苯并咪唑基-3- N-甲基吡咯基-丙烯腈13及其稠合类似物23在所有细胞系中发挥最高的活性（IC 50  = 0.8–30μM），并显示出对HeLa细胞的特殊选择性。非融合的和融合的类似物
• D-π-A-Based Trisubstituted Alkenes as Environmentally Sensitive Fluorescent Probes to Detect Lewy Pathologies
  作者：Qi Zeng、Yimin Chen、Yingying Yan、Rong Wan、Yanjing Li、Hualong Fu、Yu Liu、Sen Liu、Xiao-Xin Yan、Mengchao Cui

  DOI：10.1021/acs.analchem.2c02532

  日期：2022.11.8

  Lewy pathologies, which mainly consist of insoluble α-synuclein (α-syn) aggregates, are the hallmarks of Parkinson’s disease and many other neurodegenerative diseases termed “synucleinopathies”. Detection of Lewy pathologies with optical methods is of interest for preclinical studies, while the α-syn fluorescent probe is still in great demand. By rational design, we obtained a series of D-π-A-based trisubstituted alkenes with acceptable optical properties and high binding affinities to α-syn fibrils. Among these probes, FPQXN and TQXN-2 exhibited high binding affinities (6 and 8 nM, respectively), significant fluorescence enhancements (17.2- and 26.6-fold, respectively), and satisfying quantum yields (36.5% and 10.4%, respectively), which met the need for the in vitro neuropathological staining of Lewy pathologies in the PD brain sections. In addition, TQXN-2 showed great potential in fluorescent discrimination of Lewy pathologies and Aβ plaques. Our research provides flexible tools for in vitro detection of α-syn aggregates and offers new structural frameworks for the further development of α-syn fluorescent probes.

  路易病变主要由不溶性α-突触核蛋白（α-syn）聚集体组成，是帕金森病和其他许多被称为 "突触核蛋白病 "的神经退行性疾病的特征。用光学方法检测路易病变是临床前研究的兴趣所在，而 α-syn 荧光探针仍有很大的需求。通过合理设计，我们获得了一系列基于 D-π-A 的三取代烯类探针，这些探针具有可接受的光学特性以及与 α-syn 纤维的高结合亲和力。在这些探针中，FPQXN和TQXN-2具有较高的结合亲和力（分别为6 nM和8 nM）、显著的荧光增强（分别为17.2倍和26.6倍）以及令人满意的量子产率（分别为36.5%和10.4%），可满足对帕金森病脑切片中路易病变进行体外神经病理学染色的需要。此外，TQXN-2 在路易病变和 Aβ 斑块的荧光鉴别方面也表现出了巨大的潜力。我们的研究为体外检测α-syn聚集体提供了灵活的工具，并为进一步开发α-syn荧光探针提供了新的结构框架。
• Development of benzimidazole derivatives to inhibit HIV-1 replication through protecting APOBEC3G protein
  作者：Ting Pan、Xin He、Bing Chen、Hui Chen、Guannan Geng、Haihua Luo、Hui Zhang、Chuan Bai

  DOI：10.1016/j.ejmech.2015.03.050

  日期：2015.5

  Human APOBEC3G (apolipoprotein B mRNA-editing enzyme, catalytic polypeptide-like 3G, MG) is a potent restriction factor against human immunodeficiency virus type 1 (HIV-1) by inducing hypermutation of G to A in viral genome after its incorporation into virions. HIV-1 Vif (Virion Infectivity Factor) counteracts A3G by inducing ubiquitination and proteasomal degradation of MG protein. Vif-A3G axis therefore is a promising therapeutic target of HIV-1. Here we report the screening, synthesis and SAR studies of benzimidazole derivatives as potent inhibitors against HIV-1 replication via protecting MG protein. Based on the steep SAR of the benzimidazole scaffold, we identified compound 14 and 26 which provided the best potency, with IC50 values of 3.45 nM and 58.03 nM respectively in the anti-HIV-1 replication assay in H9 cells. Compound 14 and 26 also afforded protective effects on MG protein level. Both compounds have been proved to be safe in acute toxicological studies. Taken together, we suggest that these two benzimidazole derivatives can be further developed as a new category of anti-HIV-1 leads. (C) 2015 Elsevier Masson SAS. All rights reserved.