7-Oxo-4,5-dimethyl-4,7-dihydro-pyrazolo<1,5-a>pyrimidin | 29269-61-2

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 吡唑并嘧啶类
• 英文名称: 7-Oxo-4,5-dimethyl-4,7-dihydro-pyrazolo<1,5-a>pyrimidin
• 英文别名: 4,5-Dimethylpyrazolo[1,5-a]pyrimidin-7(4H)-one；4,5-dimethylpyrazolo[1,5-a]pyrimidin-7-one
• CAS: 29269-61-2
• 化学式: C₈H₉N₃O
• 分子量: 163.179
• InChiKey: MQFGLIDHMLTVCX-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  0.8
• 重原子数：
  12
• 可旋转键数：
  0
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.25
• 拓扑面积：
  38.1
• 氢给体数：
  0
• 氢受体数：
  3

反应信息

• 作为反应物：
  描述：

  7-Oxo-4,5-dimethyl-4,7-dihydro-pyrazolo<1,5-a>pyrimidin 在 tetraphosphorus decasulfide 作用下， 以 吡啶 为溶剂， 反应 5.0h， 以45%的产率得到4,5-Dimethyl-4H-pyrazolo[1,5-a]pyrimidine-7-thione
  参考文献：
  名称：

  Synthesis and antischistosomal activity of certain pyrazolo[1,5-a]pyrimidines

  摘要：

  Several 7-hydroxypyrazolo[1,5-a]pyrimidines (1-21), 7-mercaptopyrazolo[1,5-a]pyrimidines (37-49), and 4-alkylpyrazolo[1,5-a]pyrimidin-7-ones (50-55) and the corresponding 4-alkylpyrazolo[1,5-a]pyrimidine-7-thiones (56-60) were synthesized and tested for antischistosomal activity against Schistosoma mansoni. Of the compounds examined, the greatest degree of activity in vitro was found with the 7-mercaptopyrazolo[1,5-a]pyrimidines. In particular, compounds 37 and 47 proved lethal at 100 micrograms/mL after an exposure of only 1 h. The 7-hydroxypyrazolo[1,5-a]-pyrimidines were not as active. None of the compounds exhibiting in vitro activity were active against S. mansoni in vivo.

  DOI：

  10.1021/jm00137a023
• 作为产物：
  描述：

  5-METHYLPYRAZOLO[1,5-A]PYRIMIDIN-7(4H)-ONE 、 碘甲烷 在 potassium carbonate 作用下， 以 N,N-二甲基甲酰胺 为溶剂， 反应 20.0h， 以43%的产率得到7-Oxo-4,5-dimethyl-4,7-dihydro-pyrazolo<1,5-a>pyrimidin
  参考文献：
  名称：

  Synthesis and antischistosomal activity of certain pyrazolo[1,5-a]pyrimidines

  摘要：

  Several 7-hydroxypyrazolo[1,5-a]pyrimidines (1-21), 7-mercaptopyrazolo[1,5-a]pyrimidines (37-49), and 4-alkylpyrazolo[1,5-a]pyrimidin-7-ones (50-55) and the corresponding 4-alkylpyrazolo[1,5-a]pyrimidine-7-thiones (56-60) were synthesized and tested for antischistosomal activity against Schistosoma mansoni. Of the compounds examined, the greatest degree of activity in vitro was found with the 7-mercaptopyrazolo[1,5-a]pyrimidines. In particular, compounds 37 and 47 proved lethal at 100 micrograms/mL after an exposure of only 1 h. The 7-hydroxypyrazolo[1,5-a]-pyrimidines were not as active. None of the compounds exhibiting in vitro activity were active against S. mansoni in vivo.

  DOI：

  10.1021/jm00137a023

文献信息

• SENGA, KEITARO;NOVINSON, T.;WILSON, H. R.;ROBINS, R. K., J. MED. CHEM., 1981, 24, N 5, 610-613
  作者：SENGA, KEITARO、NOVINSON, T.、WILSON, H. R.、ROBINS, R. K.

  DOI：——

  日期：——
• Synthesis and antischistosomal activity of certain pyrazolo[1,5-a]pyrimidines
  作者：Keitaro Senga、Thomas Novinson、Henry R. Wilson、Roland K. Robins

  DOI：10.1021/jm00137a023

  日期：1981.5

  Several 7-hydroxypyrazolo[1,5-a]pyrimidines (1-21), 7-mercaptopyrazolo[1,5-a]pyrimidines (37-49), and 4-alkylpyrazolo[1,5-a]pyrimidin-7-ones (50-55) and the corresponding 4-alkylpyrazolo[1,5-a]pyrimidine-7-thiones (56-60) were synthesized and tested for antischistosomal activity against Schistosoma mansoni. Of the compounds examined, the greatest degree of activity in vitro was found with the 7-mercaptopyrazolo[1,5-a]pyrimidines. In particular, compounds 37 and 47 proved lethal at 100 micrograms/mL after an exposure of only 1 h. The 7-hydroxypyrazolo[1,5-a]-pyrimidines were not as active. None of the compounds exhibiting in vitro activity were active against S. mansoni in vivo.