5-amino-1-(2-methoxyethyl)pyrazole-4-carboxylic acid | 144991-36-6

• 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-amino-1-(2-methoxyethyl)pyrazole-4-carboxylic acid
• CAS: 144991-36-6
• 化学式: C₇H₁₁N₃O₃
• 分子量: 185.183
• InChiKey: TZCRNIQDTJWEGB-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  -0.19
• 重原子数：
  13.0
• 可旋转键数：
  4.0
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.43
• 拓扑面积：
  90.37
• 氢给体数：
  2.0
• 氢受体数：
  5.0

反应信息

• 作为反应物：
  描述：

  5-amino-1-(2-methoxyethyl)pyrazole-4-carboxylic acid 以 二苯醚 为溶剂， 反应 2.0h， 生成 1-(2-甲氧基乙基)-1H-吡唑-5-胺
  参考文献：
  名称：

  Studies on 3′-quaternary ammonium cephalosporins—IV. Synthesis and antibacterial activity of 3′-(2-alkyl-3-aminopyrazolium)cephalosporins related to FK037

  摘要：

  The synthesis and in vitro antibacterial activity of 7 beta-[(Z)-2-(2-aminothiazol-4-yl)-2-methoxyiminoacetamido] cephalosporins bearing various 2-alkyl-3-aminopyrazolium groups at the 3-position are described. Antibacterial activity against MRSA was affected by the nature of the substituent at the 2-position on the 3'-aminopyrazolium groups. Among the cephalosporins prepared in this study, 7 beta-[(Z)-2-(2-aminothiazol-4-yl)-2-methoxyiminoacetamido]-3-[3-amino-2-(2-hydroxyethyl)-pyrazolio]methyl-3-cephem-4-carboxylate sulfate (23e, FK037) showed extremely potent broad-spectrum activity against both Gram-positive bacteria including MRSA, and Gram-negative bacteria including Pseudomonas aeruginosa. In particular, the in vivo activity against MRSA of FK037 was the highest of all the beta-lactam antibiotics tested. (C) 1997 Elsevier Science Ltd.

  DOI：

  10.1016/s0968-0896(97)00092-8
• 作为产物：
  描述：

  5-氨基-1-(2-羟乙基)吡唑-4-甲酸乙酯 在 sodium hydroxide 、 sodium methylate 、 三乙胺 作用下， 以 二氯甲烷 为溶剂， 反应 7.0h， 生成 5-amino-1-(2-methoxyethyl)pyrazole-4-carboxylic acid
  参考文献：
  名称：

  Studies on 3′-quaternary ammonium cephalosporins—IV. Synthesis and antibacterial activity of 3′-(2-alkyl-3-aminopyrazolium)cephalosporins related to FK037

  摘要：

  The synthesis and in vitro antibacterial activity of 7 beta-[(Z)-2-(2-aminothiazol-4-yl)-2-methoxyiminoacetamido] cephalosporins bearing various 2-alkyl-3-aminopyrazolium groups at the 3-position are described. Antibacterial activity against MRSA was affected by the nature of the substituent at the 2-position on the 3'-aminopyrazolium groups. Among the cephalosporins prepared in this study, 7 beta-[(Z)-2-(2-aminothiazol-4-yl)-2-methoxyiminoacetamido]-3-[3-amino-2-(2-hydroxyethyl)-pyrazolio]methyl-3-cephem-4-carboxylate sulfate (23e, FK037) showed extremely potent broad-spectrum activity against both Gram-positive bacteria including MRSA, and Gram-negative bacteria including Pseudomonas aeruginosa. In particular, the in vivo activity against MRSA of FK037 was the highest of all the beta-lactam antibiotics tested. (C) 1997 Elsevier Science Ltd.

  DOI：

  10.1016/s0968-0896(97)00092-8