ethyl 2-chloro-4-cyclopropylthiazole-5-carboxylate | 1547489-89-3

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 唑类
• 英文名称: ethyl 2-chloro-4-cyclopropylthiazole-5-carboxylate
• CAS: 1547489-89-3
• 化学式: C₉H₁₀ClNO₂S
• 分子量: 231.703
• InChiKey: CSUPYLUBHQRQRM-UHFFFAOYSA-N

物化性质

• 沸点：
  343.1±44.0 °C(Predicted)
• 密度：
  1.391±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  2.85
• 重原子数：
  14.0
• 可旋转键数：
  3.0
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.56
• 拓扑面积：
  39.19
• 氢给体数：
  0.0
• 氢受体数：
  4.0

反应信息

• 作为反应物：
  描述：

  ethyl 2-chloro-4-cyclopropylthiazole-5-carboxylate 在 盐酸 、 potassium trimethylsilonate 、 sodium hydride 、 N,N-二异丙基乙胺 、 N-[(dimethylamino)-3-oxo-1H-1,2,3-triazolo[4,5-b]pyridin-1-yl-methylene]-N-methylmethanaminium hexafluorophosphate 作用下， 以 四氢呋喃 、 1,4-二氧六环 、 二氯甲烷 、 mineral oil 为溶剂， 反应 52.5h， 生成 4-cyclopropyl-N-(trans-5-hydroxy-2-adamantyl)-2-(2-hydroxyethoxy)thiazole-5-carboxamide
  参考文献：
  名称：

  Optimization of Brain Penetrant 11β-Hydroxysteroid Dehydrogenase Type I Inhibitors and in Vivo Testing in Diet-Induced Obese Mice

  摘要：

  11 beta-Hydroxysteroid dehydrogenase type 1 (11 beta-HSD1) has been widely considered by the pharmaceutical industry as a target to treat metabolic syndrome in type II diabetics. We hypothesized that central nervous system (CNS) penetration might be required to see efficacy. Starting from a previously reported pyrimidine compound, we removed hydrogen-bond donors to yield 3, which had modest CNS penetration. More significant progress was achieved by changing the core to give 40, which combines good potency and CNS penetration. Compound 40 was dosed to diet-induced obese (DIO) mice and gave excellent target engagement in the liver and high free exposures of drug, both peripherally and in the CNS. However, no body weight reduction or effects on glucose or insulin were observed in this model. Similar data were obtained with a structurally diverse thiazole compound 51. This work casts doubt on the hypothesis that localized tissue modulation of 11 beta-HSD1 activity alleviates metabolic syndrome.

  DOI：

  10.1021/jm4016729
• 作为产物：
  描述：

  3-环丙基-3-羰基-丙酸乙酯 在 盐酸 、 氯化亚砜 作用下， 以 1,4-二氧六环 、 乙醇 、 二氯甲烷 为溶剂， 反应 5.5h， 生成 ethyl 2-chloro-4-cyclopropylthiazole-5-carboxylate
  参考文献：
  名称：

  Optimization of Brain Penetrant 11β-Hydroxysteroid Dehydrogenase Type I Inhibitors and in Vivo Testing in Diet-Induced Obese Mice

  摘要：

  11 beta-Hydroxysteroid dehydrogenase type 1 (11 beta-HSD1) has been widely considered by the pharmaceutical industry as a target to treat metabolic syndrome in type II diabetics. We hypothesized that central nervous system (CNS) penetration might be required to see efficacy. Starting from a previously reported pyrimidine compound, we removed hydrogen-bond donors to yield 3, which had modest CNS penetration. More significant progress was achieved by changing the core to give 40, which combines good potency and CNS penetration. Compound 40 was dosed to diet-induced obese (DIO) mice and gave excellent target engagement in the liver and high free exposures of drug, both peripherally and in the CNS. However, no body weight reduction or effects on glucose or insulin were observed in this model. Similar data were obtained with a structurally diverse thiazole compound 51. This work casts doubt on the hypothesis that localized tissue modulation of 11 beta-HSD1 activity alleviates metabolic syndrome.

  DOI：

  10.1021/jm4016729