4-(3-aminophenyl)-1H-imidazole dihydrochloride | 51746-93-1

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 唑类
• 英文名称: 4-(3-aminophenyl)-1H-imidazole dihydrochloride
• 英文别名: 5-(3-aminophenyl)-3H-imidazole-dihydrochloride；4-(3-Aminophenyl)-imidazol；3-(1H-Imidazol-5-YL)aniline hydrochloride；3-(1H-imidazol-5-yl)aniline;hydrochloride
• CAS: 51746-93-1
• 化学式: C₉H₉N₃*2ClH
• 分子量: 232.112
• InChiKey: IFYXKWHSCFOXJN-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  2.08
• 重原子数：
  13
• 可旋转键数：
  1
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.0
• 拓扑面积：
  54.7
• 氢给体数：
  3
• 氢受体数：
  2

反应信息

• 作为反应物：
  描述：

  4-(3-aminophenyl)-1H-imidazole dihydrochloride 、 4-butyl isothiocyanate 在 三乙胺 作用下， 以 四氢呋喃 为溶剂， 反应 48.0h， 以22%的产率得到1-{4-[(5-Bromo-pyridin-2-yl)-(3,4-dichloro-benzyl)-amino]-butyl}-3-[3-(1H-imidazol-4-yl)-phenyl]-thiourea
  参考文献：
  名称：

  Nonpeptide Somatostatin Agonists with sst₄ Selectivity:  Synthesis and Structure−Activity Relationships of Thioureas

  摘要：

  Utilizing NNC 26-9100 (11) as a structural lead, a variety of nonpeptide derivatives of somatostatin were synthesized and evaluated for sst(2) and sst(4) receptor binding affinity. A novel thiourea scaffold was utilized to attach (1) a heteroaromatic nucleus to mimic the Trp(8) residue, (2) a nonheteroaromatic nucleus to mimic Phe(7), and (3) a primary amine or other basic group to mimic the Lys(9) residue of somatostatin. Displacement studies were carried out using membranes from cell lines expressing ssts [BHK cells (sst(4)) and HEK 293 cells (sst(2))] utilizing [I-125]Tyr(11)-SRIF as the radioligand. Several thioureas (11, 38, 39, 41, and 42) and the urea 66 exhibited K-i values of less than 100 nM. The thioureas 11 (K-i = 6 nM) and 41 (K-i = 16 nM) and the urea 66 (K-i = 14 nM) are believed to be the most potent nonpeptide sst(4) agonists known. Since the thiourea 11 and the urea 66 exhibit high ssts selectivity, these novel nonpeptide derivatives may be useful tools for studying the sst(4) receptor. Studies are currently in progress to evaluate the therapeutic potential of NNC 26-9100 (11) in the treatment of glaucoma.

  DOI：

  10.1021/jm980118e
• 作为产物：
  描述：

  5-(3-硝基苯基)-1H-咪唑 在 palladium on activated charcoal 盐酸 、 氢气 作用下， 以 甲醇 、 乙醇 为溶剂， 反应 3.0h， 生成 4-(3-aminophenyl)-1H-imidazole dihydrochloride
  参考文献：
  名称：

  Molecular conformations of aminophenylimidazoles exhibiting antiulcer activities.

  摘要：

  为了通过实验澄清 H2 受体拮抗剂可能存在的立体结构-活性关系，我们合成了三种 5-氨基苯基咪唑（1、2 和 3），其中的氨基分别位于苯环的正位、偏位和对位，并使用 X 射线衍射和质子核磁共振（1H-NMR）方法检测了它们的构象特征，以及在大鼠身上的抗溃疡活性和在豚鼠身上的 H2 受体拮抗剂活性。正交异构体 1 优先形成分子内 N-H（氨基）......N（咪唑）氢键，显示出最高的抗溃疡活性，药效是西咪替丁的一半。另一方面，1、2 和 3 均未显示出明显的 H2 受体拮抗剂活性。基于这些结果，我们对显示抗溃疡活性的构象特征进行了讨论。

  DOI：

  10.1248/cpb.38.1803

文献信息

• Nonpeptide Somatostatin Agonists with sst₄ Selectivity:  Synthesis and Structure−Activity Relationships of Thioureas
  作者：Shenquan Liu、Cheng Tang、Bin Ho、Michael Ankersen、Carsten E. Stidsen、A. Michael Crider

  DOI：10.1021/jm980118e

  日期：1998.11.1

  Utilizing NNC 26-9100 (11) as a structural lead, a variety of nonpeptide derivatives of somatostatin were synthesized and evaluated for sst(2) and sst(4) receptor binding affinity. A novel thiourea scaffold was utilized to attach (1) a heteroaromatic nucleus to mimic the Trp(8) residue, (2) a nonheteroaromatic nucleus to mimic Phe(7), and (3) a primary amine or other basic group to mimic the Lys(9) residue of somatostatin. Displacement studies were carried out using membranes from cell lines expressing ssts [BHK cells (sst(4)) and HEK 293 cells (sst(2))] utilizing [I-125]Tyr(11)-SRIF as the radioligand. Several thioureas (11, 38, 39, 41, and 42) and the urea 66 exhibited K-i values of less than 100 nM. The thioureas 11 (K-i = 6 nM) and 41 (K-i = 16 nM) and the urea 66 (K-i = 14 nM) are believed to be the most potent nonpeptide sst(4) agonists known. Since the thiourea 11 and the urea 66 exhibit high ssts selectivity, these novel nonpeptide derivatives may be useful tools for studying the sst(4) receptor. Studies are currently in progress to evaluate the therapeutic potential of NNC 26-9100 (11) in the treatment of glaucoma.
• Molecular conformations of aminophenylimidazoles exhibiting antiulcer activities.
  作者：Toshimasa ISHIDA、Yasuko IN、Masatoshi INOUE、Takushi KURIHARA、Kazuhiro MORIMOTO、Katsuaki MORISAKA、Kenyu SHIBATA

  DOI：10.1248/cpb.38.1803

  日期：——

  To experimentally clarify a possible stereostructure-activity relationship proposed for H2-receptor antagonists, three 5-aminophenylimidazoles (1, 2 and 3), in which respective amino groups are located on the ortho, meta and para positions of the benzene ring, were synthesized and examined for their conformational characteristics using X-ray diffraction and proton nuclear magnetic resonance ( 1H-NMR) methods, and for antiulcer activities on rats and H2-receptor antagonist activities in guinea pig. The ortho isomer 1, which preferentially formed an intramolecular N-H (amino)…N (imidazole) hydrogen bond, showed the highest antiulcer activity with half the efficacy of cimetidine. On the other hand, none of 1, 2 and 3 showed significant H2-receptor antagonist activity. Based on these results, the conformational characteristic for the exhibition of antiulcer activity has been discussed.

  为了通过实验澄清 H2 受体拮抗剂可能存在的立体结构-活性关系，我们合成了三种 5-氨基苯基咪唑（1、2 和 3），其中的氨基分别位于苯环的正位、偏位和对位，并使用 X 射线衍射和质子核磁共振（1H-NMR）方法检测了它们的构象特征，以及在大鼠身上的抗溃疡活性和在豚鼠身上的 H2 受体拮抗剂活性。正交异构体 1 优先形成分子内 N-H（氨基）......N（咪唑）氢键，显示出最高的抗溃疡活性，药效是西咪替丁的一半。另一方面，1、2 和 3 均未显示出明显的 H2 受体拮抗剂活性。基于这些结果，我们对显示抗溃疡活性的构象特征进行了讨论。