12-Cyclopentyl-10-ethyl-5-pyridin-2-yl-3,4,6,11,12-pentazatricyclo[7.3.0.02,6]dodeca-1(9),2,4,10-tetraene

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 吡啶及其衍生物
• 英文名称: 12-Cyclopentyl-10-ethyl-5-pyridin-2-yl-3,4,6,11,12-pentazatricyclo[7.3.0.02,6]dodeca-1(9),2,4,10-tetraene
• 化学式: C₁₉H₂₂N₆
• 分子量: 334.424
• InChiKey: IWPHDQBTRZYUAV-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  2
• 重原子数：
  25
• 可旋转键数：
  3
• 环数：
  5.0
• sp3杂化的碳原子比例：
  0.47
• 拓扑面积：
  61.4
• 氢给体数：
  0
• 氢受体数：
  4

反应信息

• 作为产物：
  描述：

  7H-吡唑并[3,4-c]吡啶-7-硫酮,1-环戊基-3-乙基-1,4,5,6-四氢- 在 吡啶 、 silica gel 作用下， 以 乙醚 为溶剂， 反应 9.0h， 生成 12-Cyclopentyl-10-ethyl-5-pyridin-2-yl-3,4,6,11,12-pentazatricyclo[7.3.0.02,6]dodeca-1(9),2,4,10-tetraene
  参考文献：
  名称：

  SAR of a Series of 5,6-Dihydro-(9H)-pyrazolo[3,4-c]-1,2,4-triazolo[4,3-α]pyridines as Potent Inhibitors of Human Eosinophil Phosphodiesterase

  摘要：

  The potency and physical properties of a previously reported 7-oxo-4,5,6,7-tetrahydro-1H-pyrazolo[3,4-c]pyridine series of human eosinophil phosphodiesterase inhibitors were improved by tying the lactam moiety into a triazolo ring. The resulting 5,6-dihydro-(9H)-pyrazolo[3,4-c]-1,2,4-triazolo[4,3-alpha]pyridine series provided nonionizable analogs with melting point properties suitable for micronization. Substitution at the 3-position of the 5,6-dihydro-(9H)-pyrazolo[3,4-c]-1,2,4-triazolo[4,3-alpha]pyridine tricycle led to a 2-thienyl analog, 19 (tofimilast), a potent PDE4 inhibitor with low oral bioavailability and no emesis-associated behaviors in ferrets at plasma concentrations up to 152 ng/mL.

  DOI：

  10.1021/jm060904g

文献信息

• SAR of a Series of 5,6-Dihydro-(9<i>H</i>)-pyrazolo[3,4-<i>c</i>]-1,2,4-triazolo[4,3-α]pyridines as Potent Inhibitors of Human Eosinophil Phosphodiesterase
  作者：Allen J. Duplantier、Elizabeth L. Bachert、John B. Cheng、Victoria L. Cohan、Teresa H. Jenkinson、Kenneth G. Kraus、Michael W. McKechney、Joann D. Pillar、John W. Watson

  DOI：10.1021/jm060904g

  日期：2007.1.1

  The potency and physical properties of a previously reported 7-oxo-4,5,6,7-tetrahydro-1H-pyrazolo[3,4-c]pyridine series of human eosinophil phosphodiesterase inhibitors were improved by tying the lactam moiety into a triazolo ring. The resulting 5,6-dihydro-(9H)-pyrazolo[3,4-c]-1,2,4-triazolo[4,3-alpha]pyridine series provided nonionizable analogs with melting point properties suitable for micronization. Substitution at the 3-position of the 5,6-dihydro-(9H)-pyrazolo[3,4-c]-1,2,4-triazolo[4,3-alpha]pyridine tricycle led to a 2-thienyl analog, 19 (tofimilast), a potent PDE4 inhibitor with low oral bioavailability and no emesis-associated behaviors in ferrets at plasma concentrations up to 152 ng/mL.