5-Butyl-2-(2,6-dichloro-phenyl)-2,4-dihydro-[1,2,4]triazol-3-one | 862261-61-8

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 唑类
• 英文名称: 5-Butyl-2-(2,6-dichloro-phenyl)-2,4-dihydro-[1,2,4]triazol-3-one
• 英文别名: 5-butyl-2-(2,6-dichlorophenyl)-4H-1,2,4-triazol-3-one
• CAS: 862261-61-8
• 化学式: C₁₂H₁₃Cl₂N₃O
• 分子量: 286.161
• InChiKey: DRVKNPIZIWKTFB-UHFFFAOYSA-N

物化性质

• 密度：
  1.40±0.1 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  3.6
• 重原子数：
  18
• 可旋转键数：
  4
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.33
• 拓扑面积：
  44.7
• 氢给体数：
  1
• 氢受体数：
  2

反应信息

• 作为反应物：
  描述：

  5-Butyl-2-(2,6-dichloro-phenyl)-2,4-dihydro-[1,2,4]triazol-3-one 在 sodium hydride 、 溶剂黄146 作用下， 以 水 为溶剂， 反应 2.83h， 生成 5-Butyl-2-(2,6-dichloro-phenyl)-4-[2'-(2H-tetrazol-5-yl)-biphenyl-4-ylmethyl]-2,4-dihydro-[1,2,4]triazol-3-one
  参考文献：
  名称：

  Triazolinones as nonpeptide angiotensin II antagonists. 1. Synthesis and evaluation of potent 2,4,5-trisubstituted triazolinones

  摘要：

  A series of 2,4-dihydro-2,4,5-trisubstituted-3H-1,2,4-triazol-3-ones was prepared via several synthetic routes and evaluated as AII receptor antagonists in vitro and in vivo. The preferred compounds contained a [2'-(5-tetrazolyl)biphenyl-4-yl]methyl side chain at N4 and an n-butyl group at C5. A number of these bearing an alkyl or aralkyl substituent at N2 showed in vitro potency in the nanomolar range (rabbit aorta membrane receptor), and several of these, e.g., the 2,2-dimethyl-1-propyl analogue (54, IC50 = 2.1 nM), effectively blocked the AII pressor response in conscious rats with significant duration (2.5 h at 1 mg/kg orally for 54). Among analogues possessing aryl substituents at N2, ortho substitution on the phenyl moiety resulted in several derivatives with in vitro potency in the low nanomolar range. One of these, featuring a 2-(trifluoromethyl)phenyl substituent at N2 (25, IC50 = 1.2 nM), was effective at 1 mg/kg orally in the rat model, with a duration of >6 h. Implications for hydrophobic and hydrogen-bonding interactions with the AT1 receptor are discussed.

  DOI：

  10.1021/jm00069a015
• 作为产物：
  描述：

  ethyl valerimidate 在 三乙胺 作用下， 以 二氯甲烷 为溶剂， 反应 3.5h， 生成 5-Butyl-2-(2,6-dichloro-phenyl)-2,4-dihydro-[1,2,4]triazol-3-one
  参考文献：
  名称：

  Triazolinones as nonpeptide angiotensin II antagonists. 1. Synthesis and evaluation of potent 2,4,5-trisubstituted triazolinones

  摘要：

  A series of 2,4-dihydro-2,4,5-trisubstituted-3H-1,2,4-triazol-3-ones was prepared via several synthetic routes and evaluated as AII receptor antagonists in vitro and in vivo. The preferred compounds contained a [2'-(5-tetrazolyl)biphenyl-4-yl]methyl side chain at N4 and an n-butyl group at C5. A number of these bearing an alkyl or aralkyl substituent at N2 showed in vitro potency in the nanomolar range (rabbit aorta membrane receptor), and several of these, e.g., the 2,2-dimethyl-1-propyl analogue (54, IC50 = 2.1 nM), effectively blocked the AII pressor response in conscious rats with significant duration (2.5 h at 1 mg/kg orally for 54). Among analogues possessing aryl substituents at N2, ortho substitution on the phenyl moiety resulted in several derivatives with in vitro potency in the low nanomolar range. One of these, featuring a 2-(trifluoromethyl)phenyl substituent at N2 (25, IC50 = 1.2 nM), was effective at 1 mg/kg orally in the rat model, with a duration of >6 h. Implications for hydrophobic and hydrogen-bonding interactions with the AT1 receptor are discussed.

  DOI：

  10.1021/jm00069a015

文献信息

• Synthesis and Biological Study of 3-Butyl-1-(2,6-dichlorophenyl)-1H-[1,2,4]triazol- 5(4H)-one Derivatives as Anti-hypertension Drugs
  作者：Yanchun Zhang、Jinpei Zhou、Weihong Pan、Xiaoming Wu、Shuai Wang

  DOI：10.2174/157018010789869370

  日期：2010.1.1

  A series of nitric oxide-donating derivatives of [1,2,4]triazol-5(4H)-one (9a-f and 15a-f) as a novel class of angiotensin II receptor AT1 antagonists have been designed and synthesized by coupling furoxan and nitric oxide with lead compound 1. The synthesized compounds were evaluated for their antagonism of AT1 receptor with induced contraction in the rabbit thoracic aortic ring and the results showed that compounds 9b, 15b and 15d exhibited potent antagonistic activity of AT1 receptor. Moreover 9b, 15b, 15d, 15e had good maximum NO release amount of this series.

  一系列新型血管紧张素II受体AT1拮抗剂——[1,2,4]三唑-5(4H)-酮（9a-f和15a-f）的硝酸氧化物衍生物，通过将呋喃并氧和硝酸氧化物与前导化合物1结合而设计并合成。合成的化合物在兔胸主动脉环中诱导收缩的情况下，对其AT1受体的拮抗作用进行了评估，结果显示化合物9b、15b和15d展现出强大的AT1受体拮抗活性。此外，9b、15b、15d、15e在这一系列化合物中具有良好的最大NO释放量。
• Triazolinone Biphenylsulfonamide Derivatives as Orally Active Angiotensin II Antagonists with Potent AT1 Receptor Affinity and Enhanced AT2 Affinity
  作者：Wallace T. Ashton、Linda L. Chang、Kelly L. Flanagan、Steven M. Hutchins、Elizabeth M. Naylor、Prasun K. Chakravarty、Arthur A. Patchett、William J. Greenlee、Tsing-Bau Chen

  DOI：10.1021/jm00043a020

  日期：1994.8

  cycloalkylcarbonyl derivatives. Certain other acidic sulfonamides, such as sulfonylcarbamates and disulfimides also displayed high affinity for the AT1 receptor. In addition, AT2 binding for some of these compounds was increased by as much as 1000-fold over the corresponding tetrazole (e.g., AT2 IC50 17 nM for the tert-butyl sulfonylcarbamate 92). When evaluated for inhibition of the AII pressor response, the benchmark

  几个系列的2,4-二氢-2,4,5-三取代的3H-1,2,4-三唑-3-酮在联苯-4-基甲基的2'-位上被四唑的酸性磺酰胺取代制备N4链并作为血管紧张素II（AII）拮抗剂进行测试。三唑啉酮环上的优选取代基是在C5处的正丁基和在N2处的2-（三氟甲基）苯基。对于多种酰基磺酰胺，包括芳酰基，杂芳酰基和环烷基羰基衍生物，观察到AT1受体亚型的亚纳摩尔IC50值。某些其他酸性磺酰胺，如磺酰氨基甲酸酯和二硫化亚胺也对AT1受体表现出高亲和力。另外，这些化合物中某些化合物的AT2结合量比相应的四唑增加了1000倍（例如，叔丁基磺酰基氨基甲酸酯92的AT2 IC50 17 nM）。当评估抑制AII升压反应时，基准苯甲酰磺酰胺9（L-159,913）在几种物种中均有效，在有意识的恒河猴中优于氯沙坦（1a）。随后的几种类似物，包括2-氯苯甲酰基（18），（3-氯噻吩-2-基）羰基（51），（（S）-2,2