1-(4-Bromophenyl)pyrazole-4-carbohydrazide | 884851-01-8

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 唑类
• 英文名称: 1-(4-Bromophenyl)pyrazole-4-carbohydrazide
• CAS: 884851-01-8
• 化学式: C₁₀H₉BrN₄O
• 分子量: 281.112
• InChiKey: TVPKHOLZQXTJEN-UHFFFAOYSA-N

物化性质

• 熔点：
  205-209 °C(Solv: ethanol (64-17-5))
• 密度：
  1.72±0.1 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  1.1
• 重原子数：
  16
• 可旋转键数：
  2
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.0
• 拓扑面积：
  72.9
• 氢给体数：
  2
• 氢受体数：
  3

反应信息

• 作为反应物：
  描述：

  1-(4-Bromophenyl)pyrazole-4-carbohydrazide 、 4-甲氧基苯甲醛 在 盐酸 作用下， 以 乙醇 为溶剂， 反应 2.0h， 以85%的产率得到1-(4-bromophenyl)-N-[(4-methoxyphenyl)methylideneamino]pyrazole-4-carboxamide
  参考文献：
  名称：

  Synthesis and leishmanicidal activities of 1-(4-X-phenyl)-N′-[(4-Y-phenyl)methylene]-1H-pyrazole-4-carbohydrazides

  摘要：

  1H-pyrazole-4-carbohydrazides were synthesized and their leishmanicidal in vitro activities and cytotoxic effects were investigated. The drugs prototypes of these new compounds (ketoconazole, benznidazole, allopurinol and pentamidine) were also tested. It was found that among all the 1H-pyrazole-4-carbohydrazides derivatives examined, the most active compounds were those with X = Br, Y = NO2 (27) and X = NO2, Y = Cl (15) derivatives which showed to be most effective on promastigotes forms of L. amazonensis than on L. chagasi and L. braziliensis species. When tested against murine peritoneal macrophages as mammalian host cell controls of toxicity, 1-(4-Br-phenyl)-N'-[(4-NO2-phenyl)methylene]-1H-pyrazole-4-carbohydrazides (27) (EC50 = 50 mu M 1(-1)) and 1-(4-NO2-phenyl)-N'-[(4-Cl-phenyl)methylene]-1H-pyrazole-4-carbohydrazides (15) EC50 = 80 mu M 1(-1))] was reasonably toxic. However, both compounds were less toxic than pentamidine and ketoconazole. These results provide new perspectives on the development of drugs with activities against Leishmania parasite. (c) 2005 Elsevier SAS. All rights reserved.

  DOI：

  10.1016/j.ejmech.2005.10.007
• 作为产物：
  描述：

  methyl 1-(4-bromophenyl)-1H-pyrazole-4-carboxylate 在 一水合肼 作用下， 以 乙醇 为溶剂， 以94%的产率得到1-(4-Bromophenyl)pyrazole-4-carbohydrazide
  参考文献：
  名称：

  Synthesis and leishmanicidal activities of 1-(4-X-phenyl)-N′-[(4-Y-phenyl)methylene]-1H-pyrazole-4-carbohydrazides

  摘要：

  1H-pyrazole-4-carbohydrazides were synthesized and their leishmanicidal in vitro activities and cytotoxic effects were investigated. The drugs prototypes of these new compounds (ketoconazole, benznidazole, allopurinol and pentamidine) were also tested. It was found that among all the 1H-pyrazole-4-carbohydrazides derivatives examined, the most active compounds were those with X = Br, Y = NO2 (27) and X = NO2, Y = Cl (15) derivatives which showed to be most effective on promastigotes forms of L. amazonensis than on L. chagasi and L. braziliensis species. When tested against murine peritoneal macrophages as mammalian host cell controls of toxicity, 1-(4-Br-phenyl)-N'-[(4-NO2-phenyl)methylene]-1H-pyrazole-4-carbohydrazides (27) (EC50 = 50 mu M 1(-1)) and 1-(4-NO2-phenyl)-N'-[(4-Cl-phenyl)methylene]-1H-pyrazole-4-carbohydrazides (15) EC50 = 80 mu M 1(-1))] was reasonably toxic. However, both compounds were less toxic than pentamidine and ketoconazole. These results provide new perspectives on the development of drugs with activities against Leishmania parasite. (c) 2005 Elsevier SAS. All rights reserved.

  DOI：

  10.1016/j.ejmech.2005.10.007