N-(7-((3aR,4R,7R,7aR)-7-methoxy-6,6-dimethyl-2-oxo-tetrahydro-3aH-[1,3]dioxolo[4,5-c]pyran-4-yloxy)-2-oxo-2H-chromen-3-yl)acetamide | 866887-36-7

• 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: N-(7-((3aR,4R,7R,7aR)-7-methoxy-6,6-dimethyl-2-oxo-tetrahydro-3aH-[1,3]dioxolo[4,5-c]pyran-4-yloxy)-2-oxo-2H-chromen-3-yl)acetamide
• 英文别名: N-[7-[[(3aR,4R,7R,7aR)-7-methoxy-6,6-dimethyl-2-oxo-3a,4,7,7a-tetrahydro-[1,3]dioxolo[4,5-c]pyran-4-yl]oxy]-2-oxochromen-3-yl]acetamide
• CAS: 866887-36-7
• 化学式: C₂₀H₂₁NO₉
• 分子量: 419.388
• InChiKey: UWMHXNRBOXSGAZ-BVIKNXMNSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  1.8
• 重原子数：
  30
• 可旋转键数：
  4
• 环数：
  4.0
• sp3杂化的碳原子比例：
  0.45
• 拓扑面积：
  119
• 氢给体数：
  1
• 氢受体数：
  9

反应信息

• 作为反应物：
  描述：

  N-(7-((3aR,4R,7R,7aR)-7-methoxy-6,6-dimethyl-2-oxo-tetrahydro-3aH-[1,3]dioxolo[4,5-c]pyran-4-yloxy)-2-oxo-2H-chromen-3-yl)acetamide 在 三乙胺 作用下， 以 甲醇 为溶剂， 生成 N-(7-((2R,3R,4S,5R)-3,4-dihydroxy-5-methoxy-6,6-dimethyl-tetrahydro-2H-pyran-4-yloxy)-2-oxo-2H-chromen-3-yl)acetamide
  参考文献：
  名称：

  A non-toxic Hsp90 inhibitor protects neurons from Aβ-induced toxicity

  摘要：

  The molecular chaperones have been implicated in numerous neurodegenerative disorders in which the defining pathology is misfolded proteins and the accumulation of protein aggregates. In Alzheimer's disease, hyperphosphorylation of tau protein results in its dissociation from microtubules and the formation of pathogenic aggregates. An inverse relationship was demonstrated between Hsp90/Hsp70 levels and aggregated tau, suggesting that Hsp90 inhibitors that upregulate these chaperones could provide neuroprotection. We recently identified a small molecule novobiocin analogue, A4 that induces Hsp90 overexpression at low nanomolar concentrations and sought to test its neuroprotective properties. A4 protected neurons against A beta-induced toxicity at low nanomolar concentrations that paralleled its ability to upregulate Hsp70 expression. A4 exhibited no cytotoxicity in neuronal cells at the highest concentration tested, 10 mu M, thus providing a large therapeutic window for neuro protection. In addition, A4 was transported across BMECs in vitro, suggesting the compound may permeate the blood-brain barrier in vivo. Taken together, these data establish A4, a C-terminal inhibitor of Hsp90, as a potent lead for the development of a novel class of compounds to treat Alzheimer's disease. (c) 2007 Published by Elsevier Ltd.

  DOI：

  10.1016/j.bmcl.2007.01.017
• 作为产物：
  描述：

  3-acetamido-2-oxo-2H-chromen-7-yl acetate 在 三氟化硼乙醚 、 potassium carbonate 作用下， 以 甲醇 为溶剂， 生成 N-(7-((3aR,4R,7R,7aR)-7-methoxy-6,6-dimethyl-2-oxo-tetrahydro-3aH-[1,3]dioxolo[4,5-c]pyran-4-yloxy)-2-oxo-2H-chromen-3-yl)acetamide
  参考文献：
  名称：

  A non-toxic Hsp90 inhibitor protects neurons from Aβ-induced toxicity

  摘要：

  The molecular chaperones have been implicated in numerous neurodegenerative disorders in which the defining pathology is misfolded proteins and the accumulation of protein aggregates. In Alzheimer's disease, hyperphosphorylation of tau protein results in its dissociation from microtubules and the formation of pathogenic aggregates. An inverse relationship was demonstrated between Hsp90/Hsp70 levels and aggregated tau, suggesting that Hsp90 inhibitors that upregulate these chaperones could provide neuroprotection. We recently identified a small molecule novobiocin analogue, A4 that induces Hsp90 overexpression at low nanomolar concentrations and sought to test its neuroprotective properties. A4 protected neurons against A beta-induced toxicity at low nanomolar concentrations that paralleled its ability to upregulate Hsp70 expression. A4 exhibited no cytotoxicity in neuronal cells at the highest concentration tested, 10 mu M, thus providing a large therapeutic window for neuro protection. In addition, A4 was transported across BMECs in vitro, suggesting the compound may permeate the blood-brain barrier in vivo. Taken together, these data establish A4, a C-terminal inhibitor of Hsp90, as a potent lead for the development of a novel class of compounds to treat Alzheimer's disease. (c) 2007 Published by Elsevier Ltd.

  DOI：

  10.1016/j.bmcl.2007.01.017

文献信息

• NOVOBIOCIN ANALOGUES AND TREATMENT OF POLYCYSTIC KIDNEY DISEASE
  申请人：Calvet James P.

  公开号：US20110082098A1

  公开（公告）日：2011-04-07

  Novobiocin analogues are useful in methods of treating, inhibiting, and/or preventing cyst formation in autosomal dominant polycystic kidney disease (ADPKD) in a subject. The disclosure provides methods of treating ADPKD comprising administering a therapeutically effective amount of a coumarin-3-carboxamide novobiocin analogue. Accordingly, the method can include administering a novobiocin analogue in a therapeutically effective amount for reducing levels of mTOR pathway phosphoproteins P-mTOR, P-Akt and P-S6K, or combinations thereof. Further, the method can include administering a novobiocin analogue in a therapeutically effective amount for reducing levels of Hsp-90 client proteins CFTR, ErbB2, c-Raf and Cdk4, or combinations thereof.

  新比奴霉素类似物在治疗、抑制和/或预防自体显性多囊肾病（ADPKD）中的囊肿形成方法中是有用的。本公开提供了治疗ADPKD的方法，包括给予香豆素-3-羧酰胺新比奴霉素类似物的治疗有效量。因此，该方法可以包括给予新比奴霉素类似物的治疗有效量，以降低mTOR途径磷酸化蛋白P-mTOR、P-Akt和P-S6K的水平，或其组合。此外，该方法可以包括给予新比奴霉素类似物的治疗有效量，以降低Hsp-90客体蛋白CFTR、ErbB2、c-Raf和Cdk4的水平，或其组合。
• Novobiocin:  Redesigning a DNA Gyrase Inhibitor for Selective Inhibition of Hsp90
  作者：Joseph A. Burlison、Len Neckers、Andrew B. Smith、Anthony Maxwell、Brian S. J. Blagg

  DOI：10.1021/ja065793p

  日期：2006.12.1

  binding site, a library of novobiocin analogues was prepared and initial structure-activity relationships revealed. These data suggested that the 4-hydroxy moiety of the coumarin ring and the 3'-carbamate of the noviose appendage were detrimental to Hsp90 inhibitory activity. In an effort to confirm these findings, 4-deshydroxy novobiocin (DHN1) and 3'-descarbamoyl-4-deshydroxynovobiocin (DHN2) were prepared

  Novobiocin 是香豆霉素抗生素家族的成员，是一种成熟的 DNA 促旋酶抑制剂。最近的研究表明，新生霉素在 Hsp90 的 C 末端与以前未被识别的 ATP 结合位点结合，并在大约 700 microM 处诱导 Hsp90 依赖性客户蛋白的降解。为了开发更有效的 C 末端结合位点抑制剂，制备了新生霉素类似物库并揭示了初始结构-活性关系。这些数据表明香豆素环的 4-羟基部分和新糖附属物的 3'-氨基甲酸酯对 Hsp90 抑制活性有害。为了证实这些发现，制备了 4-去羟基新生霉素 (DHN1) 和 3'-去氨基甲酰基-4-去羟基新生霉素 (DHN2)，并针对 Hsp90 进行了评估。这两种化合物都比天然产物更有效，而且 DHN2 被证明比 DHN1 更活跃。为了确定这些部分是否对 DNA 促旋酶抑制很重要，测试了这些化合物抑制 DNA 促旋酶的能力，并发现它们显示出促旋酶活性的显着降低。因此，我们已经建立了第一组明确区分
• Novobiocin analogues as neuroprotective agents and in the treatment of autoimmune disorders
  申请人：Blagg Brian

  公开号：US20070270452A1

  公开（公告）日：2007-11-22

  Novobiocin analogues and pharmaceutical composition containing such compounds useful for the treatment and/or prevention of neurodegenerative disorders and autoimmune disorders.

  诺伐霉素类似物及含有这种化合物的制药组合物，可用于治疗和/或预防神经退行性疾病和自身免疫性疾病。
• Heat shock protein 90 inhibitor dosing methods
  申请人：Rajewski Roger A.

  公开号：US20100022635A1

  公开（公告）日：2010-01-28

  The disclosure provides novel dosing regimens for Hsp90 inhibitors for use in the treatment or prevention of a neurodegenerative disorder, an autoimmune disorder, or cancer. The methods involve administering one or more doses of a therapeutically effective amount of at least one Hsp90 inhibitor to a subject in need thereof such that no more than a single dose is administered within a period of about 7 days.

  该披露提供了新型的Hsp90抑制剂用于治疗或预防神经退行性疾病、自身免疫疾病或癌症的剂量方案。该方法涉及向需要治疗的受试者施用至少一种Hsp90抑制剂的治疗有效剂量的一个或多个剂量，以使在大约7天的时间内不会施用超过单一剂量。
• NOVOBIOCIN ANALOGUES AS NEUROPROTECTIVE AGENTS AND IN THE TREATMENT OF AUTOIMMUNE DISORDERS
  申请人：Blagg Brian S.J.

  公开号：US20100105630A1

  公开（公告）日：2010-04-29

  Novobiocin analogues and pharmaceutical composition containing such compounds useful for the treatment and/or prevention of neurodegenerative disorders and autoimmune disorders.

  诺伐霉素类似物和含有这些化合物的药物组合物，可用于治疗和/或预防神经退行性疾病和自身免疫性疾病。