5-methoxypyrazolo[1,5-a]pyridine-3-carbaldehyde | 877994-07-5

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 吡唑并吡啶类
• 英文名称: 5-methoxypyrazolo[1,5-a]pyridine-3-carbaldehyde
• 英文别名: 5-Methoxypyrazolo[1,5-a]pyridine-3-carbaldehyde
• CAS: 877994-07-5
• 化学式: C₉H₈N₂O₂
• 分子量: 176.175
• InChiKey: CIIVXMYOAIIEQV-UHFFFAOYSA-N

物化性质

• 熔点：
  93 °C
• 密度：
  1.26±0.1 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  0.5
• 重原子数：
  13
• 可旋转键数：
  2
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.11
• 拓扑面积：
  43.6
• 氢给体数：
  0
• 氢受体数：
  3

反应信息

• 作为反应物：
  描述：

  5-methoxypyrazolo[1,5-a]pyridine-3-carbaldehyde 在 tin 、 sodium tetrahydroborate 、 盐酸甲胺 、 potassium acetate 、 溶剂黄146 、 三乙胺 作用下， 以 四氢呋喃 、 甲醇 、 乙醇 为溶剂， 反应 144.83h， 生成 N-[2-(5-Methoxy-pyrazolo[1,5-a]pyridin-3-yl)-ethyl]-butyramide
  参考文献：
  名称：

  Bicyclic melatonin receptor agonists containing a ring-junction nitrogen: Synthesis, biological evaluation, and molecular modeling of the putative bioactive conformation

  摘要：

  Employing 1,3-dipolar cycloaddition for the synthesis of the 7a-azaindole nucleus, analogues of melatonin have been synthesized and tested against human and amphibian melatonin receptors. Introducing a phenyl substituent ill position 2 of the heterocyclic moiety significantly increased binding affinity to both the MT1 and MT2 receptors. Shifting the methoxy group from position 5 to 2 of the 7a-azaindole ring led to a substantial reduction of MT1 binding when MT2 recognition was maintained. We theoretically investigated the hypothesis whether the 2-methoxy function of the azamelatonin analogue 27 is able to mimic the 5-methoxy group of the neurohormone by directing its 2-methoxy function toward the methoxy binding site. DFT calculations and experimental binding differences of analogue compounds indicate that the energy gained by forming the methoxy-specific hydrogen-bond interaction should exceed the energy required for adopting ail alternative conformation. (c) 2005 Elsevier Ltd. All rights reserved.

  DOI：

  10.1016/j.bmc.2005.10.042
• 作为产物：
  描述：

  4-甲氧基吡啶 在 air 、 硫酸 、 potassium carbonate 、 三氯氧磷 作用下， 以 N,N-二甲基甲酰胺 、 乙腈 为溶剂， 反应 52.0h， 生成 5-methoxypyrazolo[1,5-a]pyridine-3-carbaldehyde
  参考文献：
  名称：

  Bicyclic melatonin receptor agonists containing a ring-junction nitrogen: Synthesis, biological evaluation, and molecular modeling of the putative bioactive conformation

  摘要：

  Employing 1,3-dipolar cycloaddition for the synthesis of the 7a-azaindole nucleus, analogues of melatonin have been synthesized and tested against human and amphibian melatonin receptors. Introducing a phenyl substituent ill position 2 of the heterocyclic moiety significantly increased binding affinity to both the MT1 and MT2 receptors. Shifting the methoxy group from position 5 to 2 of the 7a-azaindole ring led to a substantial reduction of MT1 binding when MT2 recognition was maintained. We theoretically investigated the hypothesis whether the 2-methoxy function of the azamelatonin analogue 27 is able to mimic the 5-methoxy group of the neurohormone by directing its 2-methoxy function toward the methoxy binding site. DFT calculations and experimental binding differences of analogue compounds indicate that the energy gained by forming the methoxy-specific hydrogen-bond interaction should exceed the energy required for adopting ail alternative conformation. (c) 2005 Elsevier Ltd. All rights reserved.

  DOI：

  10.1016/j.bmc.2005.10.042

文献信息

• [EN] PYRAZOLO[1,5-A]PYRIDINES AND THEIR USE IN CANCER THERAPY<br/>[FR] PYRAZOLO[1,5-A]PYRIDINES ET LEUR UTILISATION EN CANCÉROTHÉRAPIE
  申请人：AUCKLAND UNISERVICES LTD

  公开号：WO2009008748A1

  公开（公告）日：2009-01-15

  Pyrazolo[1,5-a]pyridines are described, including methods for their preparation, and their use as agents or drugs for cancer therapy, both alone or in combination with radiation and/or other anticancer drugs.

  Pyrazolo[1,5-a]吡啶类化合物被描述，包括它们的制备方法，以及它们作为抗癌治疗药物或药剂的用途，无论是单独使用还是与放疗和/或其他抗癌药物联合使用。
• PYRAZOLO[1,5-a]PYRIDINES AND THEIR USE IN CANCER THERAPY
  申请人：Kendall Jackie Diane

  公开号：US20100226881A1

  公开（公告）日：2010-09-09

  Pyrazolo[1,5-a]pyridines are described, including methods for their preparation, and their use as agents or drugs for cancer therapy, both alone or in combination with radiation and/or other anticancer drugs.

  本文描述了Pyrazolo[1,5-a]pyridines，包括其制备方法，以及其作为单独或与放射治疗和/或其他抗癌药物联合使用的癌症治疗药物或代理。
• Design, synthesis, and evaluation of potential inhibitors of brassinin glucosyltransferase, a phytoalexin detoxifying enzyme from Sclerotinia sclerotiorum
  作者：M. Soledade C. Pedras、Mohammad Hossain

  DOI：10.1016/j.bmc.2007.05.072

  日期：2007.9.1

  Sclerotinia sclerotiorum is a fungal pathogen, which causes stem rot in crucifer crops and in several other plant families resulting in enormous yield losses all over the world. Brassinin is a phytoalexin produced by crucifer plants as part of a general defense mechanism against pathogens and other forms of stress. To the great detriment of crucifers, some fungal pathogens, as for example S. sclerotiorum, can cletoxify brassinin. Detoxification of brassinin via glucosylation of the indole nitrogen is carried out by an inducible glucosyltransferase produced in S. sclcrotiorum. Because brassinin is a precursor of several phytoalexins active against S. sclcrotiorum, brassinin glucosyltransferase (BGT) is a potentially useful metabolic target to control S. sclerotiorum. Toward this end, we have designed, synthesized, and screened several brassinin analogues using both mycelial cultures and cell-free homogenates of S. sclerotiorum. A noticeable decrease in the rate of brassinin detoxification in cell cultures was observed in the presence of methyl (benzofuran-3-yl)methyl dithiocarbamate, methyl (benzofuran-2-yl)methyldithiocarbamate, methyl (indol-2-yl)methyldithiocarbamate, 3-phenylindole, 6-fluoro-3-phenylindole, and 5-fluorocamalexin. In addition, these compounds caused substantial inhibition of BGT activity (ca. 80%) in cell-free homogenates of S. sclerotiorum, while only brassinin and 3-phenylindole were transformed to the corresponding beta-D-1-glucopyranosyl products. These results indicate that, although many other glucosyltransferases appear to be produced by S. sclerotiorum in cell cultures, BGT is substrate specific. Overall these results show that selective and potent inhibitors of BGT can be developed. (c) 2007 Elsevier Ltd. All rights reserved.
• Discovery of pyrazolo[1,5-a]pyridines as p110α-selective PI3 kinase inhibitors
  作者：Jackie D. Kendall、Patrick D. O’Connor、Andrew J. Marshall、Raphaël Frédérick、Elaine S. Marshall、Claire L. Lill、Woo-Jeong Lee、Sharada Kolekar、Mindy Chao、Alisha Malik、Shuqiao Yu、Claire Chaussade、Christina Buchanan、Gordon W. Rewcastle、Bruce C. Baguley、Jack U. Flanagan、Stephen M.F. Jamieson、William A. Denny、Peter R. Shepherd

  DOI：10.1016/j.bmc.2011.11.029

  日期：2012.1

  We have made a novel series of pyrazolo[1,5-a]pyridines as PI3 kinase inhibitors, and demonstrated their selectivity for the p110 alpha isoform over the other Class Ia PI3 kinases. We investigated the SAR around the pyrazolo[1,5-a] pyridine ring system, and found compound 5x to be a particularly potent example (p110 alpha IC50 0.9 nM). This compound inhibits cell proliferation and phosphorylation of Akt/PKB, a downstream marker of PI3 kinase activity, and showed in vivo activity in an HCT-116 human xenograft model. (C) 2011 Elsevier Ltd. All rights reserved.
• PYRAZOLO[1,5-A]PYRIDINES AND THEIR USE IN CANCER THERAPY
  申请人：AUCKLAND UNISERVICES LIMITED

  公开号：EP2176260A1

  公开（公告）日：2010-04-21