3-allyl-9-azido-5,5-dimethyl-2-((2-(prop-2-yn-1-yloxy)ethyl)thio)-5,6-dihydrobenzo[h]quinazolin-4(3H)-one | 1579956-97-0

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 二氮杂萘
• 英文名称: 3-allyl-9-azido-5,5-dimethyl-2-((2-(prop-2-yn-1-yloxy)ethyl)thio)-5,6-dihydrobenzo[h]quinazolin-4(3H)-one
• 英文别名: 9-azido-5,5-dimethyl-3-prop-2-enyl-2-(2-prop-2-ynoxyethylsulfanyl)-6H-benzo[h]quinazolin-4-one
• CAS: 1579956-97-0
• 化学式: C₂₂H₂₃N₅O₂S
• 分子量: 421.523
• InChiKey: YYLJUVJJIVUREP-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  4.8
• 重原子数：
  30
• 可旋转键数：
  8
• 环数：
  3.0
• sp3杂化的碳原子比例：
  0.36
• 拓扑面积：
  81.6
• 氢给体数：
  0
• 氢受体数：
  6

反应信息

• 作为产物：
  描述：

  2-(prop-2-yn-1-yloxy)ethyl 4-methylbenzenesulfonate 在 正丁基锂 、 四丁基氟化铵 、 sodium methylate 、 碳酸氢钠 作用下， 以 四氢呋喃 、 乙醇 、 正己烷 、 N,N-二甲基甲酰胺 为溶剂， 反应 27.83h， 生成 3-allyl-9-azido-5,5-dimethyl-2-((2-(prop-2-yn-1-yloxy)ethyl)thio)-5,6-dihydrobenzo[h]quinazolin-4(3H)-one
  参考文献：
  名称：

  Development of tag-free photoprobes for studies aimed at identifying the target of novel Group A Streptococcus antivirulence agents

  摘要：

  We previously reported the identification and development of novel inhibitors of streptokinase (SK) expression by Group A Streptococcus (GAS), originating from a high throughput cell-based phenotypic screen. Although phenotypic screening is well-suited to identifying compounds that exert desired biological effects in potentially novel ways, it requires follow-up experiments to determine the macromolecular target(s) of active compounds. We therefore designed and synthesized several classes of chemical probes for target identification studies, guided by previously established structure-activity relationships. The probes were designed to first irreversibly photolabel target proteins in the intact bacteria, followed by cell lysis and click ligation with fluorescent tags to allow for visualization on SDS-PAGE gels. This stepwise, 'tag-free' approach allows for a significant reduction in molecular weight and polar surface area compared to full-length fluorescent or biotinylated probes, potentially enhancing membrane permeability and the maintenance of activity. Of the seven probes produced, the three most biologically active were employed in preliminary target identification trials. Despite the potent activity of these probes, specific labeling events were not conclusively observed due to a considerable degree of nonspecific protein binding. Nevertheless, the successful synthesis of potent biologically active probe molecules will serve as a starting point for initiating more sensitive methods of probe-based target identification. (C) 2014 Elsevier Ltd. All rights reserved.

  DOI：

  10.1016/j.bmcl.2014.01.079

文献信息

• Development of tag-free photoprobes for studies aimed at identifying the target of novel Group A Streptococcus antivirulence agents
  作者：Bryan D. Yestrepsky、Colin A. Kretz、Yuanxi Xu、Autumn Holmes、Hongmin Sun、David Ginsburg、Scott D. Larsen

  DOI：10.1016/j.bmcl.2014.01.079

  日期：2014.3

  We previously reported the identification and development of novel inhibitors of streptokinase (SK) expression by Group A Streptococcus (GAS), originating from a high throughput cell-based phenotypic screen. Although phenotypic screening is well-suited to identifying compounds that exert desired biological effects in potentially novel ways, it requires follow-up experiments to determine the macromolecular target(s) of active compounds. We therefore designed and synthesized several classes of chemical probes for target identification studies, guided by previously established structure-activity relationships. The probes were designed to first irreversibly photolabel target proteins in the intact bacteria, followed by cell lysis and click ligation with fluorescent tags to allow for visualization on SDS-PAGE gels. This stepwise, 'tag-free' approach allows for a significant reduction in molecular weight and polar surface area compared to full-length fluorescent or biotinylated probes, potentially enhancing membrane permeability and the maintenance of activity. Of the seven probes produced, the three most biologically active were employed in preliminary target identification trials. Despite the potent activity of these probes, specific labeling events were not conclusively observed due to a considerable degree of nonspecific protein binding. Nevertheless, the successful synthesis of potent biologically active probe molecules will serve as a starting point for initiating more sensitive methods of probe-based target identification. (C) 2014 Elsevier Ltd. All rights reserved.