1-benzyl-5-bromo-1,3-dihydro-benzoimidazol-2-one | 30770-12-8

• 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: 1-benzyl-5-bromo-1,3-dihydro-benzoimidazol-2-one
• 英文别名: 1-Benzyl-5-bromobenzimidazol-2-one；3-benzyl-6-bromo-1H-benzimidazol-2-one
• CAS: 30770-12-8
• 化学式: C₁₄H₁₁BrN₂O
• 分子量: 303.158
• InChiKey: HUQOWLKILHLFRX-UHFFFAOYSA-N

物化性质

• 密度：
  1.541±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  2.9
• 重原子数：
  18
• 可旋转键数：
  2
• 环数：
  3.0
• sp3杂化的碳原子比例：
  0.07
• 拓扑面积：
  32.3
• 氢给体数：
  1
• 氢受体数：
  1

反应信息

• 作为反应物：
  描述：

  1-benzyl-5-bromo-1,3-dihydro-benzoimidazol-2-one 在 三氯氧磷 、 三氯化磷 作用下， 反应 6.5h， 生成 1-benzyl-5-bromo-2-(pyrrolidin-1-yl)-1H-benzo[d]imidazole
  参考文献：
  名称：

  苯并咪唑支架作为 TRPC5 抑制剂的进一步探索：1-烷基-2-(pyrrolidin-1-yl)-1H-苯并[d]咪唑作为有效和选择性抑制剂的鉴定

  摘要：

  有潜力的抑制剂！原始命中化合物AC1903, 1的药物化学优化导致下一代瞬时受体电位阳离子通道 5 (TRPC5) 抑制剂16 f的形成。我们在体外和体内药代动力学试验以及其他选择性试验中分析了这种化合物。

  DOI：

  10.1002/cmdc.202200151
• 作为产物：
  描述：

  2-羟基苯并咪唑 在 sodium hydroxide 、 溴 、 potassium carbonate 作用下， 以 溶剂黄146 、 乙腈 为溶剂， 反应 1.5h， 生成 1-benzyl-5-bromo-1,3-dihydro-benzoimidazol-2-one
  参考文献：
  名称：

  Regiospecific Functionalization of 1,3-Dihydro-2H-benzimidazol-2-one and Structurally Related Cyclic Urea Derivatives

  摘要：

  Methods for selectively protecting one of the degenerate nitrogen atoms of the cyclic urea derivatives 1,3-dihydro-2H-benzimidazol-2-one (6a), 1,3-dihydro-2H-imidazo[4,5-b]pyridin-2-one (11), 1,3-dihydro-2H-imidazo[4,5-b]quinolin-2-ones (20), 1,3-dihydro-2H-imidazo[4,5-c]pyridin-2-one (22), and 1,3-dihydro-4-phenyl-2H-imidazol-2-one (27) were developed. Heating these cyclic ureas with ethyl 2-pyridyl carbonate in the presence of a base in CH3CN at reflux or DMF at 100 degrees C cleanly provided the monoethoxycarbonyl derivatives 7a, 12, 21, 23, and 28, respectively. Alternatively, treatment of 6a with an excess of diethyl pyrocarbonate or di-tert-butyl dicarbonate afforded the bis-alkoxycarbonyl derivatives 8a and 8b, respectively, which underwent disproportionation to 7a and 7b upon heating with 1 mol equiv of 6a and K2CO3 in CH3CN at reflux. The regiochemistry of the introduction of alkoxycarbonyl groups to benzimidazol-2-one derivatives was not significantly influenced by an electron-withdrawing (CF3, 6b) or an electron-donating (OCH3, 6c) substituent at C-5 of the heterocyclic ring. However, the reaction was found to be sensitive to steric factors since a chlorine substituent ortho to one of the urea N atoms (6e) completely directed the alkoxycarbonyl moiety to the less sterically encumbered N atom, affording a single product (7f, 7g). Alkylation of 7a-g proceeded efficiently to provide products 10a-10ag after removal of the protecting group. Halogenation of monoprotected benzimidazol-2-one 7a occurred regiospecifically to give the monohalo derivatives 7h, 7i, and 7k, the identity of which were readily established from the characteristic chemical shift and spin coupling pattern in their 1H NMR spectra. A protecting group interchange strategy that took advantage of the distinctive chemical reactivities of the EtO(2)C and t-BuO(2)C protecting groups toward isopropylamine was developed that provided access to the isomerically substituted series of monohalo, mono-N-alkylated benzimidazol-2-ones 71 and 7m. The efficient derivatization of the unprotected N atom of these monoprotected cyclic urea derivatives was accomplished by treating with activated and unactivated halides in the. presence of K2CO3 or exposure to alcohols under Mitsunobu conditions. In several cases, mixtures of O- and N-alkylated products were produced which were readily separated by chromatography. Alkylation of 7h with activated halides, using K2CO3 in CH3CN at reflux, occurred without protecting group equilibration; however, a mixture of isomeric alkylated products was obtained when 7h was heated at 110 degrees C in DMF with cyclohexylmethyl bromide in the presence of K2CO3 as the base. Derivatization of 7h under Mitsunobu reaction conditions proceeded with retention of the topological substituent relationships. Subsequent removal of the alkoxycarbonyl moiety afforded monoalkylated cyclic urea derivatives.

  DOI：

  10.1021/jo00111a014

文献信息

• Synthesis of AC1903 analogs as potent transient receptor potential canonical channel 4/5 inhibitors and biological evaluation
  作者：Lili Chen、Zhuang Zhang、Hongtao Tian、Shan Jiang、Yunyun Ji、Mengru Liu、Jianhua Shen、Zhengyu Cao、Kai Wang

  DOI：10.1016/j.bmc.2022.116853

  日期：2022.8

  Transient receptor potential canonical (TRPC) channels are a class of non-selective cation channels expressed in a variety of tissues and organ systems where they functionally regulate physiological and pathological processes. TRPC5 has been shown to be a promising target for focal segmental glomerulosclerosis treatment. In this study, we report the synthesis and biological evaluation of a novel series

  瞬时受体电位经典 (TRPC) 通道是一类在各种组织和器官系统中表达的非选择性阳离子通道，它们在功能上调节生理和病理过程。TRPC5 已被证明是局灶节段性肾小球硬化治疗的有希望的靶点。在这项研究中，我们报告了一系列基于苯并咪唑的新型 TRPC5 抑制剂的合成和生物学评价。一种化合物8b在抑制 TRPC5 通道活性方面的效力是母体化合物 AC1903 的 100 倍。有趣的是，AC1903 和8b都以相似的效力抑制了 TRPC4 通道活性。化合物8b还显着减弱硫酸鱼精蛋白诱导的足细胞细胞骨架重组、白细胞介素 (IL)-17 诱导的细胞增殖和人角质形成细胞 HaCaT 细胞中促炎介质的表达。
• Synthesis and progesterone receptor antagonist activities of 6-aryl benzimidazolones and benzothiazolones
  作者：Puwen Zhang、Eugene A. Terefenko、Jay Wrobel、Zhiming Zhang、Yuan Zhu、Jeffrey Cohen、Keith B. Marschke、Dale Mais

  DOI：10.1016/s0960-894x(01)00554-6

  日期：2001.10

  Novel 6-aryl benzimidazolones and benzothiazolones were prepared and examined as bioisosteres of the recently reported 6-aryl dihydroquinolines (1) for progesterone receptor (PR) antagonist activities. PR antagonist activities increased when compounds 9c-f possessed a more lipophilic group at position-1 and pendent aryl moiety para to NH moiety. Furthermore, conversion of carbonyl moiety of 9e,f to the thio-carbonyl led to benzoimidazolethiones 15a,b with significantly improved potency and binding affinity. (C) 2001 Elsevier Science Ltd. All rights reserved.
• BENZIMIDAZOLONES AND ANALOGUES AND THEIR USE AS PROGESTERONE RECEPTOR LIGANDS
  申请人：American Home Products Corporation

  公开号：EP1173423A1

  公开（公告）日：2002-01-23
• [EN] BENZIMIDAZOLONES AND ANALOGUES AND THEIR USE AS PROGESTERONE RECEPTOR LIGANDS<br/>[FR] BENZIMIDAZOLONES ET ANALOGUES ET LEUR UTILISATION COMME LIGANDS DU RECEPTEUR DE PROGESTERONE
  申请人：AMERICAN HOME PROD

  公开号：WO2000066564A1

  公开（公告）日：2000-11-09

  The present invention provides compounds and pharmaceutical formulations useful as progesterone receptor agonists and antagonists and having general formula (a): wherein A is O, S, or NR4; B is a bond between A and C=Q, or the moiety CR?5R6; R4, R5, R6¿ are independently selected from H or optionally substituted C¿1? to C6 alkyl, C2 to C6 alkenyl, C2 to C6 alkynyl, C3 to C8 cycloalkyl, substituted C3 to C8 cycloalkyl, aryl, or heteorcyclic groups, or cyclic alkyl constructed by fusing R?4 and R5¿ to from a 5 to 7 membered ring; R1 is selected from H, OH, NH¿2?, C1 to C6 alkyl, substituted C1 to C6 alkyl, C3 to C6 alkenyl, substituded C1 to C6 alkenyl, alkynyl, substituted alkynyl, -COH, or optionally substituted -CO(C1 to C3 alkyl), -CO(aryl), -CO(C1 to C3 alkoxy), or -CO(C1 toC3 aminoalkyl) groups; R?2¿ is selected from H, halogen, CN, NO¿2?, or optionally substituted C1 to C6 alkyl, C1 to C6 alkoxy, or C1 to C6 aminoalkyl groups; R?3¿ is selected from a trisubstituted benzene ring; or a 5- or 6- membered heteroaromatic ring containing 1 or 2 substituents; Q is O, S, NR?8, or CR9R10¿; or a pharmaceutically acceptable salt thereof. The invention also includes methods of contraception and methods of treating or preventing maladies associated with the progesterone receptor.