4-methyl-6,8-di-tert-butylcoumarin | 330934-85-5

• 分子结构分类: 有机化合物 - 苯丙烷和聚酮 - 香豆素及其衍生物
• 英文名称: 4-methyl-6,8-di-tert-butylcoumarin
• 英文别名: 6,8-di-tert-butyl-4-methylcoumarin；6,8-Ditert-butyl-4-methylchromen-2-one
• CAS: 330934-85-5
• 化学式: C₁₈H₂₄O₂
• 分子量: 272.387
• InChiKey: YUTKVEZQMFOCNB-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  5.2
• 重原子数：
  20
• 可旋转键数：
  2
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.5
• 拓扑面积：
  26.3
• 氢给体数：
  0
• 氢受体数：
  2

反应信息

• 作为反应物：
  描述：

  4-methyl-6,8-di-tert-butylcoumarin 在 lithium aluminium tetrahydride 、 caesium carbonate 作用下， 以 乙醚 、 N,N-二甲基甲酰胺 为溶剂， 生成 (Z)-3-[3,5-di-tert-butyl-2-(2,2-difluoroethoxy)phenyl]but-2-en-1-ol
  参考文献：
  名称：

  Novel (2E,4E,6Z)-7-(2-Alkoxy-3,5-dialkylbenzene)-3-methylocta-2,4,6-trienoic Acid Retinoid X Receptor Modulators Are Active in Models of Type 2 Diabetes

  摘要：

  Previous data have shown that RXR-selective agonists (e.g., 3 and 4) are insulin sensitizers in rodent models of non-insulin-dependent diabetes mellitus (NIDDM). Unfortunately, they also produce dramatic increases in triglycerides and profound suppression of the thyroid hormone axis. Here we describe the design and synthesis of new RXR modulators that retain the insulin-sensitizing activity of RXR agonists but produce substantially reduced side effects. These molecules bind selectively and with high affinity to RXR and, unlike RXR agonists, do not activate RXR homodimers. To further evaluate the antidiabetic activity of these RXR modulators, we have designed a concise and systematic structure-activity relationship around the 2E,4E,6Z-7-aryl-3-methylocta-2,4,6-trienoic acid scaffold. Selected compounds have been evaluated using insulin-resistant rodents (db/db mice) to characterize effects on glucose homeostasis. Our studies demonstrate the effectiveness of RXR modulators in lowering plasma glucose in the db/db mouse model.

  DOI：

  10.1021/jm020340q
• 作为产物：
  描述：

  2,4-二叔丁基苯酚 在 硫酸 、 三乙胺 作用下， 以 氯仿 为溶剂， 反应 31.0h， 生成 4-methyl-6,8-di-tert-butylcoumarin
  参考文献：
  名称：

  Preparation of Newtert-Butyl Substituted Coumarins, Thiocoumarins and Dithiocoumarins

  摘要：

  6-tert-Butyl-4-methyl- and 6,8-di-tert-butyl-4-methylcoumarin were prepared from tert-butylphenols and diketene via the corresponding aryl acetoacetates. 6-tertButyl-4-methyl-thiocoumarin (6) was obtained from 6-tert-butylthiophenol. Thionation with LAWESSON's or DAVY's reagent led to the related thion- and dithiocoumarins. The structures were proved by NMR spectroscopy and an X-ray structure analysis of 6.

  DOI：

  10.1080/10426500701340949

文献信息

• Novel (2<i>E</i>,4<i>E</i>,6<i>Z</i>)-7-(2-Alkoxy-3,5-dialkylbenzene)-3-methylocta-2,4,6-trienoic Acid Retinoid X Receptor Modulators Are Active in Models of Type 2 Diabetes
  作者：P. Y. Michellys、R. J. Ardecky、J. H. Chen、D. L. Crombie、G. J. Etgen、A. L. Faulkner、M. M. Faul、T. A. Grese、R. A. Heyman、D. S. Karanewsky、K. Klausing、M. D. Leibowitz、S. Liu、D. A. Mais、C. M. Mapes、K. B. Marschke、A. Reifel-Miller、K. M. Ogilvie、D. Rungta、A. W. Thompson、J. S. Tyhonas、M. F. Boehm

  DOI：10.1021/jm020340q

  日期：2003.6.1

  Previous data have shown that RXR-selective agonists (e.g., 3 and 4) are insulin sensitizers in rodent models of non-insulin-dependent diabetes mellitus (NIDDM). Unfortunately, they also produce dramatic increases in triglycerides and profound suppression of the thyroid hormone axis. Here we describe the design and synthesis of new RXR modulators that retain the insulin-sensitizing activity of RXR agonists but produce substantially reduced side effects. These molecules bind selectively and with high affinity to RXR and, unlike RXR agonists, do not activate RXR homodimers. To further evaluate the antidiabetic activity of these RXR modulators, we have designed a concise and systematic structure-activity relationship around the 2E,4E,6Z-7-aryl-3-methylocta-2,4,6-trienoic acid scaffold. Selected compounds have been evaluated using insulin-resistant rodents (db/db mice) to characterize effects on glucose homeostasis. Our studies demonstrate the effectiveness of RXR modulators in lowering plasma glucose in the db/db mouse model.
• Preparation of New<i>tert</i>-Butyl Substituted Coumarins, Thiocoumarins and Dithiocoumarins
  作者：Jürgen Voss、Ronald Edler、Gunadi Adiwidjaja

  DOI：10.1080/10426500701340949

  日期：2007.6.14

  6-tert-Butyl-4-methyl- and 6,8-di-tert-butyl-4-methylcoumarin were prepared from tert-butylphenols and diketene via the corresponding aryl acetoacetates. 6-tertButyl-4-methyl-thiocoumarin (6) was obtained from 6-tert-butylthiophenol. Thionation with LAWESSON's or DAVY's reagent led to the related thion- and dithiocoumarins. The structures were proved by NMR spectroscopy and an X-ray structure analysis of 6.