7-fluorotirapazamine | 196403-31-3

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 三嗪类
• 英文名称: 7-fluorotirapazamine
• 英文别名: 7-F-tirapazamine；7-Fluoro-1,4-dioxido-1,2,4-benzotriazine-1,4-diium-3-amine；7-fluoro-1,4-dioxido-1,2,4-benzotriazine-1,4-diium-3-amine
• CAS: 196403-31-3
• 化学式: C₇H₅FN₄O₂
• 分子量: 196.141
• InChiKey: JVTREGZZEKECKJ-UHFFFAOYSA-N

物化性质

• 沸点：
  495.2±37.0 °C(Predicted)
• 密度：
  1.80±0.1 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  0.1
• 重原子数：
  14
• 可旋转键数：
  0
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.0
• 拓扑面积：
  89.8
• 氢给体数：
  1
• 氢受体数：
  5

反应信息

• 作为反应物：
  描述：

  7-fluorotirapazamine 在 NADPH:cytochrome P₄₅₀ oxidoreductase 、 还原型辅酶II(NADPH)四钠盐 作用下， 以 aq. phosphate buffer 、 二甲基亚砜 为溶剂， 反应 4.0h， 生成 3-amino-7-fluoro-1,2,4-benzotriazine-1-oxide
  参考文献：
  名称：

  Exploiting the Inherent Photophysical Properties of the Major Tirapazamine Metabolite in the Development of Profluorescent Substrates for Enzymes That Catalyze the Bioreductive Activation of Hypoxia-Selective Anticancer Prodrugs

  摘要：

  Hypoxia-selective cytotoxins (HSCs) seek to exploit the oxygen poor nature of tumor tissue for therapeutic gain. Typically, HSCs require activation by one-electron bioreductive enzymes such as NADPH:cytochrome P450 reductase (CYPOR). Thus, successful clinical deployment of HSCs may be facilitated by the development and implementation of diagnostic probes that detect the presence of relevant bioreductive enzymes in tumor tissue. The work described here develops analogues of the well-studied HSC tirapazamine (3-amino-1,2,4-benzotriazine 1,4-di-N-oxide, TPZ) as profluorescent substrates of the one-electron reductases involved in bioactivation of HSCs. Hypoxic metabolism of TPZ or 7-fluoro-TPZ by one-electron reductases releases inherently fluorescent mono-N-oxide metabolites that may serve as indicators, probes, markers, or stains for the detection of the enzymes involved in the bioactivation of HSCs. In particular, profluorescent compounds of this type can provide a foundation for fluorescence-based bioassays that help identify tumors responsive to HSCs.

  DOI：

  10.1021/acs.joc.7b03035
• 作为产物：
  描述：

  4-氟-2-硝基苯胺 在 盐酸 、 sodium hydroxide 、 溶剂黄146 作用下， 反应 5.0h， 生成 7-fluorotirapazamine
  参考文献：
  名称：

  1,2,4-苯并三嗪1,4-二氧化物作为替拉帕明的低氧选择性类似物的构效关系。

  摘要：

  替拉帕明（TPZ，1,2,4-苯并三嗪-3-胺1,4-二氧化物）是一种生物还原性低氧细胞毒素，目前在II / III期临床试验中结合放疗和基于顺铂的化学疗法。作为开发具有改善的溶解度/效能和治疗指数的TPZ类似物的程序的一部分，我们合成了34 1,2,4-苯并三嗪-3-胺1,4-二氧化物（BTO），以检查其结构活性关系（SAR）。环取代。系统地改变了5、6、7和8位上取代基的电子，疏水和空间参数，并确定了类似物的水溶性和单电子还原电位[E（1）] 。对于每种化合物，我们通过克隆形成存活率确定了有氧和低氧条件下小鼠SCCVII肿瘤细胞的体外杀伤作用，并确定了它们的相对低氧毒性（RHT；相对于TPZ）和低氧细胞毒性比（HCR）。使用96孔SRB增殖测定法独立评估了化合物的子集，其数据与克隆形成终点所得出的数据具有良好的相关性。除5-和8-二甲基氨基和8-二乙基氨基外，大多数取代基的溶解度均低于TPZ。E（1）值的范围是-240

  DOI：

  10.1021/jm020367+

文献信息

• A Convenient Synthesis of 3-Amino-1,2,4-benzotriazine 1,4-Dioxide (SR 4233) and Related Compounds via Nucleophilic Aromatic Substitution Between Nitroarenes and Guanidine Base
  作者：Hitomi Suzuki、Takehiko Kawakami

  DOI：10.1055/s-1997-1283

  日期：1997.8

  Reaction of 1-fluoro-2-nitrobenzene or 1,2-dinitrobenzene with guanidine in hot THF followed by treatment with potassium tert-butoxide gave 3-amino-1,2,4-benzotriazine 1-oxide in good yield, which was further oxidized by peracetic acid to afford the title compound.

  1-氟-2-硝基苯或1,2-二硝基苯与胍在热四氢呋喃中反应，随后用叔丁醇钾处理，以良好产率得到3-氨基-1,2,4-苯并三嗪1-氧化物，再经过过氧乙酸氧化，得到目标化合物。
• Radical properties governing the hypoxia-selective cytotoxicity of antitumor 3-amino-1,2,4-benzotriazine 1,4-dioxides
  作者：Robert F. Anderson、Sujata S. Shinde、Michael P. Hay、Swarna A. Gamage、William A. Denny

  DOI：10.1039/b502586a

  日期：——

  following the one-electron reduction of tirapazamine and its elimination of water from the initial reduction intermediate, and have suggested that this species is a cytotoxin. In this paper we have used pulse radiolysis to measure the one-electron reduction potentials of the benzotriazinyl radicals E(B*,H(+)/B) of 30 analogues of tirapazamine as well as the one-electron reduction potentials of their two-electron

  揭示抗癌药物替拉帕明（3-氨基-1,2,4-苯并三嗪1,4-二氧化物）引起缺氧选择性细胞毒性的自由基机制，被视为开发临床上有用的针对化学疗法的生物还原药物的方法。和耐辐射的缺氧肿瘤细胞。我们以前的研究指出，单电子还原替拉帕明并从初始的还原中间体中除去水后，会形成一个活性的苯并三嗪基自由基，并表明该物种是一种细胞毒素。在本文中，我们使用脉冲辐解法测量了替拉帕明的30个类似物的苯并三嗪基自由基E（B *，H（+）/ B）的单电子还原电势以及它们的两个电子还原的代谢物，苯并三嗪1氧化物E（B / B *-）。发现主要通过苯并三嗪1的单电子还原电位来追踪单电子还原的1,3-二氧化苯并三嗪1,4-二氧化物被氧反氧化的氧化还原依赖性，自由基的质子性和除水反应。 ，4-二氧化物E（A / A *-）。对已发表的SCCVII鼠肿瘤细胞系需氧和低氧克隆性细胞毒性数据进行多元回归分析，并在此研究中测量其物理化
• Structure−Activity Relationships of 1,2,4-Benzotriazine 1,4-Dioxides as Hypoxia-Selective Analogues of Tirapazamine
  作者：Michael P. Hay、Swarna A. Gamage、Mary S. Kovacs、Frederik B. Pruijn、Robert F. Anderson、Adam V. Patterson、William R. Wilson、J. Martin Brown、William A. Denny

  DOI：10.1021/jm020367+

  日期：2003.1.1

  well with that derived by the clonogenic endpoint. Most substituents, except 5- and 8-dimethylamino and 8-diethylamino, gave analogues less soluble than TPZ. E(1) values ranged from -240 mV through -670 mV (with TPZ having a value of -456 mV) and correlated well with the electronic parameter sigma for substituents at the 5-, 6-, 7-, and 8-positions. Aerobic cytotoxic potency showed a strong positive correlation

  替拉帕明（TPZ，1,2,4-苯并三嗪-3-胺1,4-二氧化物）是一种生物还原性低氧细胞毒素，目前在II / III期临床试验中结合放疗和基于顺铂的化学疗法。作为开发具有改善的溶解度/效能和治疗指数的TPZ类似物的程序的一部分，我们合成了34 1,2,4-苯并三嗪-3-胺1,4-二氧化物（BTO），以检查其结构活性关系（SAR）。环取代。系统地改变了5、6、7和8位上取代基的电子，疏水和空间参数，并确定了类似物的水溶性和单电子还原电位[E（1）] 。对于每种化合物，我们通过克隆形成存活率确定了有氧和低氧条件下小鼠SCCVII肿瘤细胞的体外杀伤作用，并确定了它们的相对低氧毒性（RHT；相对于TPZ）和低氧细胞毒性比（HCR）。使用96孔SRB增殖测定法独立评估了化合物的子集，其数据与克隆形成终点所得出的数据具有良好的相关性。除5-和8-二甲基氨基和8-二乙基氨基外，大多数取代基的溶解度均低于TPZ。E（1）值的范围是-240
• Exploiting the Inherent Photophysical Properties of the Major Tirapazamine Metabolite in the Development of Profluorescent Substrates for Enzymes That Catalyze the Bioreductive Activation of Hypoxia-Selective Anticancer Prodrugs
  作者：Xiulong Shen、Charles H. Laber、Ujjal Sarkar、Fabio Galazzi、Kevin M. Johnson、Nathaniel G. Mahieu、Roman Hillebrand、Tarra Fuchs-Knotts、Charles L. Barnes、Gary A. Baker、Kent S. Gates

  DOI：10.1021/acs.joc.7b03035

  日期：2018.3.16

  Hypoxia-selective cytotoxins (HSCs) seek to exploit the oxygen poor nature of tumor tissue for therapeutic gain. Typically, HSCs require activation by one-electron bioreductive enzymes such as NADPH:cytochrome P450 reductase (CYPOR). Thus, successful clinical deployment of HSCs may be facilitated by the development and implementation of diagnostic probes that detect the presence of relevant bioreductive enzymes in tumor tissue. The work described here develops analogues of the well-studied HSC tirapazamine (3-amino-1,2,4-benzotriazine 1,4-di-N-oxide, TPZ) as profluorescent substrates of the one-electron reductases involved in bioactivation of HSCs. Hypoxic metabolism of TPZ or 7-fluoro-TPZ by one-electron reductases releases inherently fluorescent mono-N-oxide metabolites that may serve as indicators, probes, markers, or stains for the detection of the enzymes involved in the bioactivation of HSCs. In particular, profluorescent compounds of this type can provide a foundation for fluorescence-based bioassays that help identify tumors responsive to HSCs.