(1RS,2RS,2aRS,10aSR)-1-ethyl-10,10-trimethyl-2-(3,4,-dimethoxyphenyl)-1,2,2a,4,10,10a-hexahydro-3H-cyclobuta[4,5]pyrano[3,2-c]quinolin-3-one

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 喹啉及其衍生物
• 英文名称: (1RS,2RS,2aRS,10aSR)-1-ethyl-10,10-trimethyl-2-(3,4,-dimethoxyphenyl)-1,2,2a,4,10,10a-hexahydro-3H-cyclobuta[4,5]pyrano[3,2-c]quinolin-3-one
• 英文别名: (11R,12R,13R,14S)-12-(3,4-dimethoxyphenyl)-13-ethyl-15,15-dimethyl-16-oxa-8-azatetracyclo[8.6.0.02,7.011,14]hexadeca-1(10),2,4,6-tetraen-9-one
• 化学式: C₂₆H₂₉NO₄
• 分子量: 419.521
• InChiKey: AIEJTGALRIRQJA-ZARRYTOOSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  4.5
• 重原子数：
  31
• 可旋转键数：
  4
• 环数：
  5.0
• sp3杂化的碳原子比例：
  0.42
• 拓扑面积：
  56.8
• 氢给体数：
  1
• 氢受体数：
  4

反应信息

• 作为产物：
  描述：

  2,4-喹啉二醇 在 ytterbium(III) triflate 作用下， 以 乙腈 为溶剂， 反应 32.0h， 生成 (1RS,2RS,2aRS,10aSR)-1-ethyl-10,10-trimethyl-2-(3,4,-dimethoxyphenyl)-1,2,2a,4,10,10a-hexahydro-3H-cyclobuta[4,5]pyrano[3,2-c]quinolin-3-one
  参考文献：
  名称：

  Euodenine A: A Small-Molecule Agonist of Human TLR4

  摘要：

  A small-molecule natural product, euodenine A (1), was identified as an agonist of the human TLR4 receptor. Euodenine A was isolated from the leaves of Euodia asteridula (Rutaceae) found in Papua New Guinea and has an unusual U-shaped structure. It was synthesized along with a series of analogues that exhibit potent and selective agonism of the TLR4 receptor. SAR development around the cyclobutane ring resulted in a 10-fold increase in potency. The natural product demonstrated an extracellular site of action, which requires the extracellular domain of TLR4 to stimulate a NF-kappa B reporter response. 1 is a human-selective agonist that is CD14-independent, and it requires both TLR4 and MD-2 for full efficacy. Testing for immunomodulation in PBMC cells shows the induction of the cytokines IL-8, IL-10, TNF-alpha, and IL-12p40 as well as suppression of IL-5 from activated PBMCs, indicating that compounds like 1 could modulate the Th2 immune response without causing lung damage.

  DOI：

  10.1021/jm401321v