2-(3-Bromo-2-hydroxy-phenyl)-1H-benzoimidazole-5-carboxamidine

• 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-(3-Bromo-2-hydroxy-phenyl)-1H-benzoimidazole-5-carboxamidine
• 英文别名: 2-(3-bromo-2-hydroxyphenyl)-3H-benzimidazole-5-carboximidamide
• 化学式: C₁₄H₁₁BrN₄O
• 分子量: 331.172
• InChiKey: WTZSIVZMLBYQIH-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  2.4
• 重原子数：
  20
• 可旋转键数：
  2
• 环数：
  3.0
• sp3杂化的碳原子比例：
  0.0
• 拓扑面积：
  98.8
• 氢给体数：
  4
• 氢受体数：
  3

反应信息

• 作为产物：
  描述：

  2-溴苯酚 在 sodium metabisulfite 、 三乙胺 、 magnesium chloride 作用下， 以 N,N-二甲基乙酰胺 、 乙腈 为溶剂， 反应 6.0h， 生成 2-(3-Bromo-2-hydroxy-phenyl)-1H-benzoimidazole-5-carboxamidine
  参考文献：
  名称：

  Development of Serine Protease Inhibitors Displaying a Multicentered Short (<2.3 Å) Hydrogen Bond Binding Mode:  Inhibitors of Urokinase-Type Plasminogen Activator and Factor Xa

  摘要：

  Novel scaffolds that bind to serine proteases through a unique network of short hydrogen bonds to the catalytic Ser195 have been developed. The resulting potent serine protease inhibitors were designed from lead molecule 2-(2-hydroxyphenyl)1H-benzoimidazole-5-carboxamidine, 6b, which is known to display several modes of binding. For instance, 6b can recruit zinc and bind in a manner similar to that reported by bis(5-amidino-2-benzimidazolyl)methane (BABIM) (Nature 1998, 391, 608-612).(1) Alternatively, 6b can bind in the absence of zinc through a multicentered network of short (<2.3 Angstrom) hydrogen bonds. The lead structure was optimized in the zinc-independent binding mode toward a panel of six human serine proteases to yield optimized inhibitors such as 2-(3-bromo-2-hydroxy-5-methylphenyl)-1H-indole-5-carboxamidine, 22a, and 2-(2-hydroxybiphenyl-3-yl)-1H-indole-5-carboxamidine, 22f. Structure-activity relationships determined that, apart from the amidine function, an indole or benzimidazole and an ortho substituted phenol group were also essential components for optimal potency. The affinities (K-i) of 22a and 22f, for example, bearing these groups ranged from 8 to 600 nM toward a panel of six human serine proteases. High-resolution crystal structures revealed that the binding mode of these molecules in several of the enzymes was identical to that of 6b and involved short (<2.3 Angstrom) hydrogen bonds among the inhibitor hydroxyl oxygen, Ser195, and a water molecule trapped in the oxyanion hole. In summation, novel and potent trypsin-like serine protease inhibitors possessing a unique mode of binding have been discovered.

  DOI：

  10.1021/jm0100638