4,5-dibromo-3-tert-butoxycarbonylmethoxythiophene-2-carboxylic acid methyl ester | 864132-32-1

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 噻吩类
• 英文名称: 4,5-dibromo-3-tert-butoxycarbonylmethoxythiophene-2-carboxylic acid methyl ester
• 英文别名: 4,5-dibromo-3-tert-butoxycarbonylmethoxy-thiophene-2-carboxylic acid methyl ester；Methyl 4,5-dibromo-3-[2-[(2-methylpropan-2-yl)oxy]-2-oxoethoxy]thiophene-2-carboxylate
• CAS: 864132-32-1
• 化学式: C₁₂H₁₄Br₂O₅S
• 分子量: 430.114
• InChiKey: UNOJXCKVIPSYDC-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  4.4
• 重原子数：
  20
• 可旋转键数：
  7
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.5
• 拓扑面积：
  90.1
• 氢给体数：
  0
• 氢受体数：
  6

反应信息

• 作为反应物：
  描述：

  4,5-dibromo-3-tert-butoxycarbonylmethoxythiophene-2-carboxylic acid methyl ester 在 lithium hydroxide 、 三氟乙酸 作用下， 以 四氢呋喃 、 二氯甲烷 为溶剂， 生成 4,5-dibromo-3-carboxymethoxy-thiophene-2-carboxylic acid
  参考文献：
  名称：

  Probing acid replacements of thiophene PTP1B inhibitors

  摘要：

  The following account describes our systematic effort to replace one of the carboxylate groups of our diacid thiophene PTP1B inhibitors. Active hits were validated using enzymatic assays before pursuing efforts to improve the potency. Only when the C2 carboxylic acid was replaced with another ionizable functional group was reversible and competitive inhibition retained. Use of a tetrazole ring or 1,2,5-thiadiazolidine-3-one-1,1-dioxide as a carboxylate mimetic led to the discovery of two unique starting series that showed improved permeability (PAMPA) and potency of the order of 300 nM. The SAR from these efforts underscores some of the major challenges in developing small molecule inhibitors for PTP1B. (c) 2007 Elsevier Ltd. All rights reserved.

  DOI：

  10.1016/j.bmcl.2007.02.043
• 作为产物：
  描述：

  溴乙酸叔丁酯 、 4,5-二溴-3-羟基噻吩-2-羧酸甲酯 在 potassium carbonate 作用下， 以 N,N-二甲基甲酰胺 为溶剂， 以95%的产率得到4,5-dibromo-3-tert-butoxycarbonylmethoxythiophene-2-carboxylic acid methyl ester
  参考文献：
  名称：

  基于结构的蛋白质酪氨酸磷酸酶1B抑制剂的优化：从活性位点到第二个磷酸酪氨酸结合位点。

  摘要：

  蛋白酪氨酸磷酸酶1B（PTP1B）是胰岛素和瘦素受体途径的负调节剂，因此是糖尿病和肥胖症的有吸引力的治疗靶标。从高微摩尔的先导化合物开始，描述了通过将分子从酶活性位点延伸到第二个磷酸酪氨酸结合位点来对新型PTP1B抑制剂进行基于结构的优化。在X射线复合物结构和分子建模的指导下，药物化学已经以有效的方式产生了低纳摩尔PTP1B抑制剂。发现来自该化学系列的化合物被主动转运到肝细胞中。这种对靶组织的主动摄取可能是克服PTP1B抑制剂膜通透性差的可能途径之一。

  DOI：

  10.1021/jm0702478

文献信息

• Structure-Based Optimization of Protein Tyrosine Phosphatase 1B Inhibitors:  From the Active Site to the Second Phosphotyrosine Binding Site
  作者：Douglas P. Wilson、Zhao-Kui Wan、Wei-Xin Xu、Steven J. Kirincich、Bruce C. Follows、Diane Joseph-McCarthy、Kenneth Foreman、Alessandro Moretto、Junjun Wu、Min Zhu、Eva Binnun、Yan-Ling Zhang、May Tam、David V. Erbe、James Tobin、Xin Xu、Louis Leung、Adam Shilling、Steve Y. Tam、Tarek S. Mansour、Jinbo Lee

  DOI：10.1021/jm0702478

  日期：2007.9.1

  Protein tyrosine phosphatase 1B (PTP1B) is a negative regulator of the insulin and leptin receptor pathways and thus an attractive therapeutic target for diabetes and obesity. Starting with a high micromolar lead compound, structure-based optimization of novel PTP1B inhibitors by extension of the molecule from the enzyme active site into the second phosphotyrosine binding site is described. Medicinal

  蛋白酪氨酸磷酸酶1B（PTP1B）是胰岛素和瘦素受体途径的负调节剂，因此是糖尿病和肥胖症的有吸引力的治疗靶标。从高微摩尔的先导化合物开始，描述了通过将分子从酶活性位点延伸到第二个磷酸酪氨酸结合位点来对新型PTP1B抑制剂进行基于结构的优化。在X射线复合物结构和分子建模的指导下，药物化学已经以有效的方式产生了低纳摩尔PTP1B抑制剂。发现来自该化学系列的化合物被主动转运到肝细胞中。这种对靶组织的主动摄取可能是克服PTP1B抑制剂膜通透性差的可能途径之一。
• Inhibitors of protein tyrosine phosphatase 1B
  申请人：Lee Jinbo

  公开号：US20050203087A1

  公开（公告）日：2005-09-15

  Protein tyrosine phosphatases (PTPases) such as PTP1B can play a role in regulating a wide variety of cellular responses such as insulin signaling. Substituted thiophene compounds such as, for example, 2-carboxyl, 3-carboxymethoxy, 5-aryl substituted thiophenes, can inhibit PTP1B and thereby induce greater insulin sensitivity. Accordingly, PTP1B inhibition can provide an alternate treatment for PTPase-mediated disorders such as diabetes.

  蛋白酪氨酸磷酸酶（PTPases）如PTP1B可以在调节多种细胞反应中发挥作用，例如胰岛素信号传导。取代噻吩化合物，例如2-羧基、3-羧甲氧基、5-芳基取代的噻吩，可以抑制PTP1B，从而增加胰岛素敏感性。因此，PTP1B抑制可以作为PTPase介导的疾病（如糖尿病）的替代治疗方法。
• US7521473B2
  申请人：——

  公开号：US7521473B2

  公开（公告）日：2009-04-21
• [EN] INHIBITORS OF PROTEIN TYROSINE PHOSPHATASE 1B<br/>[FR] INHIBITEURS DE LA PROTEINE TYROSINE PHOSPHATASE 1B
  申请人：WYETH CORP

  公开号：WO2005081954A2

  公开（公告）日：2005-09-09

  Protein tyrosine phosphatases (PTPases) such as PTP1B can play a role in regulating a wide variety of cellular responses such as insulin signaling. Substituted thiophene compounds such as, for example, 2-carboxyl, 3-carboxymethoxy, 5-aryl substituted thiophenes, can inhibit PTPIB and thereby induce greater insulin sensitivity. Accordingly, PTP1B inhibition can provide an alternate treatment for PTPase-mediated disorders such as diabetes.
• Probing acid replacements of thiophene PTP1B inhibitors
  作者：Zhao-Kui Wan、Bruce Follows、Steve Kirincich、Douglas Wilson、Eva Binnun、Weixin Xu、Diane Joseph-McCarthy、Junjun Wu、Michael Smith、Yan-Ling Zhang、May Tam、David Erbe、Steve Tam、Eddine Saiah、Jinbo Lee

  DOI：10.1016/j.bmcl.2007.02.043

  日期：2007.5

  The following account describes our systematic effort to replace one of the carboxylate groups of our diacid thiophene PTP1B inhibitors. Active hits were validated using enzymatic assays before pursuing efforts to improve the potency. Only when the C2 carboxylic acid was replaced with another ionizable functional group was reversible and competitive inhibition retained. Use of a tetrazole ring or 1,2,5-thiadiazolidine-3-one-1,1-dioxide as a carboxylate mimetic led to the discovery of two unique starting series that showed improved permeability (PAMPA) and potency of the order of 300 nM. The SAR from these efforts underscores some of the major challenges in developing small molecule inhibitors for PTP1B. (c) 2007 Elsevier Ltd. All rights reserved.