N-(4-bromo)phenyl-N'-hydroxyguanidine | 374079-73-9

• 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: N-(4-bromo)phenyl-N'-hydroxyguanidine
• 英文别名: 2-(4-bromophenyl)-1-hydroxyguanidine
• CAS: 374079-73-9
• 化学式: C₇H₈BrN₃O
• 分子量: 230.064
• InChiKey: ZSFYEQDOKGKMJJ-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  1
• 重原子数：
  12
• 可旋转键数：
  2
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.0
• 拓扑面积：
  70.6
• 氢给体数：
  3
• 氢受体数：
  2

反应信息

• 作为产物：
  描述：

  N-(4-bromophenyl)cyanamide 在 盐酸羟胺 作用下， 以 乙醇 为溶剂， 以65%的产率得到N-(4-bromo)phenyl-N'-hydroxyguanidine
  参考文献：
  名称：

  N-芳基N'-羟基胍，一氧化氮合酶选择性氧化后的新一类NO供体：结构-活性关系。

  摘要：

  通过重组诱导型一氧化氮合酶（NOS II）氧化37个N-羟基胍或相关衍生物（包括18个新的N-芳基N'-羟基胍）的过程中，形成一氧化氮（NO）。几个带有相对较小的给电子对位取代基的N-芳基N'-羟基胍，例如H，F，Cl，CH（3），OH，OCH（3）和NH（2），导致NO的生成速率N（ω）-羟基-L-精氨酸（NOHA）生成的NO的8％至41％。这些反应的特征与先前报道的NOS氧化NOHA的特征非常相似：（i）严格要求NOS含有（6R）-5,6,7,8-四氢-L-生物蝶呤，烟酰胺还原腺嘌呤磷酸二核苷酸和O（2）发生氧化，（ii）以1：1的摩尔比形成NO和相应的尿素，并且（iii）经典的NOS抑制剂（例如N（ω）-硝基-L-精氨酸和S-乙基-异硫氰酸酯）具有很强的抑制作用-硫脲。构效关系研究表明，两个结构因素对于由具有C（三键）NOH功能的化合物形成NO至关重要。第一个是存在单取代的N-羟基胍

  DOI：

  10.1021/jm011006h

文献信息

• Novel substrates for nitric oxide synthases
  作者：Ming Xian、Noriko Fujiwara、Zhong Wen、Tingwei Cai、Satoshi Kazuma、Adam J Janczuk、Xiaoping Tang、Vladislav V Telyatnikov、Yingxin Zhang、Xinchao Chen、Yasuhide Miyamoto、Naoyuki Taniguchi、Peng George Wang

  DOI：10.1016/s0968-0896(02)00155-4

  日期：2002.9

  Enzymatic generation of nitric oxide (NO) by nitric oxide synthase (NOS) consists of two oxidation steps. The first step converts L-arginine to N-G-hydroxy-L-arginine (NOHA), a key intermediate, and the second step converts NOHA to NO and L-citrulline. To fully probe the substrate specificity of the second enzymatic step, an extensive structural screening was carried out using a series of N-alkyl (and N-aryl) substituted-N'-hydrosyguanidines (1-14). Among the eleven N-alkyl-N'-hydroxyguanidines evaluated, N-n-propyl (2). N-iso-propyl (3). N-n-butyl (4). N-s-butyl (5). N-iso-butyl (6), N-pentyl (8) and N-iso-pentyl (9) derivatives were efficiently oxidized by the three isoenzymes of NOS (nNOS, iNOS and eNOS) to generate NO. N-Butyl-N'-hydroxyguanidine (4) was the best substrate for iNOS (K-m = 33 muM) and N-iso-propyl-N'-hydroxyguanidine (3) was the best substrate for nNOS (K-m = 56 muM). When the alkyl substituents were too small (such as ethyl 1) or too large (such as hexyl 10 and cyclohexyl 11) the activity decreased significantly. This suggests that the van der Waals interaction between the alkyl group and the hydrophobic cavity in the NOS active site contributes significantly to the relative reactivity of compounds 3-11. Moreover, five N-aryl-N'-hydroxyguanidines were found to be good substrates for iNOS. but not substrates for eNOS and nNOS. N-phenyl-N'-hydroxy- guanidine was the best substrate among them (K-m = 243 muM). This work demonstrates that N-alkyl substituted hydroxyguanidine compounds are novel NOS substrates which 'short-circuit' the first oxidation step of NOS, and N-aryl substituted hydroxyguanidine compounds are isoform selective NOS substrate. (C) 2002 Published by Elsevier Science Ltd.
• Electrochemical and peroxidase oxidation study of N′-Hydroxyguanidine derivatives as NO donors
  作者：Tingwei Cai、Ming Xian、Peng George Wang

  DOI：10.1016/s0960-894x(02)00185-3

  日期：2002.6

  The electrochemical properties of a series of N-substituted-N-hydroxyguanidines were studied. Two oxidation potentials of each compound were obtained by cyclic voltammetry. The E-ox1 values were from 0.51 to 0.62V, while the E-ox2 Values were from 1.14 to 1.81V in acetonitrile solution. Next, their enzymatic controlled NO release abilities were evaluated. All N'-hydroxyguanidines exhibited efficient NO release abilities under the oxidation by horseradish peroxidase in the presence Of H2O2. (C) 2002 Elsevier Science Ltd. All rights reserved.
• <i>N</i>-Aryl <i>N</i>‘-Hydroxyguanidines, A New Class of NO-Donors after Selective Oxidation by Nitric Oxide Synthases:  Structure−Activity Relationship
  作者：Axelle Renodon-Cornière、Sylvie Dijols、Céline Perollier、David Lefevre-Groboillot、Jean-Luc Boucher、Roger Attias、Marie-Agnes Sari、Dennis Stuehr、Daniel Mansuy

  DOI：10.1021/jm011006h

  日期：2002.2.1

  The formation of nitric oxide (NO) was followed during the oxidation of 37 N-hydroxyguanidines or related derivatives, including 18 new N-aryl N'-hydroxyguanidines, by recombinant inducible nitric oxide synthase (NOS II). Several N-aryl N'-hydroxyguanidines bearing a relatively small, electron-donating para subtituent, such as H, F, Cl, CH(3), OH, OCH(3), and NH(2), led to NO formation rates between

  通过重组诱导型一氧化氮合酶（NOS II）氧化37个N-羟基胍或相关衍生物（包括18个新的N-芳基N'-羟基胍）的过程中，形成一氧化氮（NO）。几个带有相对较小的给电子对位取代基的N-芳基N'-羟基胍，例如H，F，Cl，CH（3），OH，OCH（3）和NH（2），导致NO的生成速率N（ω）-羟基-L-精氨酸（NOHA）生成的NO的8％至41％。这些反应的特征与先前报道的NOS氧化NOHA的特征非常相似：（i）严格要求NOS含有（6R）-5,6,7,8-四氢-L-生物蝶呤，烟酰胺还原腺嘌呤磷酸二核苷酸和O（2）发生氧化，（ii）以1：1的摩尔比形成NO和相应的尿素，并且（iii）经典的NOS抑制剂（例如N（ω）-硝基-L-精氨酸和S-乙基-异硫氰酸酯）具有很强的抑制作用-硫脲。构效关系研究表明，两个结构因素对于由具有C（三键）NOH功能的化合物形成NO至关重要。第一个是存在单取代的N-羟基胍