8-chloropyrazolo[5,1-c][1,2,4]benzotriazine 5-oxide | 161464-45-5

• 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: 8-chloropyrazolo[5,1-c][1,2,4]benzotriazine 5-oxide
• 英文别名: 8-chloro-5-oxidopyrazolo[5,1-c][1,2,4]benzotriazin-5-ium
• CAS: 161464-45-5
• 化学式: C₉H₅ClN₄O
• 分子量: 220.618
• InChiKey: PSEJXMDHUVJOEJ-UHFFFAOYSA-N

物化性质

• 沸点：
  257.998±45.00 °C(Press: 760.00 Torr)(predicted)
• 密度：
  1.703±0.14 g/cm3(Temp: 25 °C; Press: 760 Torr)(predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  1
• 重原子数：
  15
• 可旋转键数：
  0
• 环数：
  3.0
• sp3杂化的碳原子比例：
  0.0
• 拓扑面积：
  55.6
• 氢给体数：
  0
• 氢受体数：
  3

反应信息

• 作为反应物：
  描述：

  8-chloropyrazolo[5,1-c][1,2,4]benzotriazine 5-oxide 在 溴 作用下， 以 氯仿 为溶剂， 以58%的产率得到3-bromo-8-chloropyrazolo[5,1-c][1,2,4]benzotriazine 5-oxide
  参考文献：
  名称：

  Benzodiazepine receptor ligands. Synthesis and pharmacological evaluation of 3-, 7- and 8-substituted [5,1-c][1,2,4]benzotriazines and 5-oxide derivatives. Part I

  摘要：

  A new series of 3-, 7- and 8-substituted pyrazolo[5,1-c][1,2,4]benzotriazine 5-oxides and a series of pyrazolo[5,1-c][1,2,4]benzotriazines were synthesized and their benzodiazepine receptor affinities were evaluated in vitro. A study of structure-affinity relationships within the series is briefly discussed, considering the role of various substituents at the 3-, 7- and 8-positions and the role of N-5-oxide. Compounds 1b, 1c, 1cR, 4c, 4cR, 9d, 12d and 12dR were evaluated in vivo for their anticonvulsant effects.

  DOI：

  10.1016/0223-5234(96)80363-1
• 作为产物：
  描述：

  2-硝基-5-氯苯基肼 在 盐酸 、 sodium hydroxide 、 溶剂黄146 作用下， 以 乙醇 为溶剂， 反应 36.0h， 生成 8-chloropyrazolo[5,1-c][1,2,4]benzotriazine 5-oxide
  参考文献：
  名称：

  1-（2-硝基苯基）-5-氨基吡唑在碱性条件下的反应性和新的3-，7-和8-取代的吡唑并[5,1- c ] [1,2,4]苯并三嗪5-氧化物的合成，作为苯二氮杂receptor受体配体

  摘要：

  对1-（2-硝基苯基）-5-氨基吡唑在碱性条件下的反应进行了重新研究，并通过光谱法证实了所获得的吡唑并[5,1- c ] [1,2,4]苯并三嗪5-氧化物的结构。特别地，确定了对8-氯衍生物4a和6a以及7-硝基衍生物11a和12a的不同芳族亲核攻击。从这些后面的化合物意外（苯基ONN -azoxy）吡唑类中分离得到。

  DOI：

  10.1002/jhet.5570310612

文献信息

• Synthesis of new pyrazolo[5,1-c][1,2,4] benzotriazines, pyrazolo[5,1-c]pyrido[4,3-e][1,2,4] triazines and their open analogues as cytotoxic agents in normoxic and hypoxic conditions
  作者：Giovanna Ciciani、Marcella Coronnello、Gabriella Guerrini、Silvia Selleri、Miriam Cantore、Paola Failli、Enrico Mini、Annarella Costanzo

  DOI：10.1016/j.bmc.2008.09.055

  日期：2008.11

  The synthesis and antitumor activity in normoxic and hypoxic conditions of a series of pyrazolo[5,1-c][1,2,4]benzotriazine and its related analogues are reported. All compounds were tested on human colorectal adenocarcinoma cell line HCT-8 and for compounds 15 and 20, which show to have selective cytotoxicity in hypoxic and in normoxic conditions respectively, ROS production, cell cycle, and DNA fragmentation

  报道了一系列吡唑并[5,1-c] [1,2,4]苯并三嗪及其相关类似物在常氧和低氧条件下的合成和抗肿瘤活性。所有化合物均在人大肠腺癌细胞系HCT-8和化合物15和20上进行了测试，化合物15和20在低氧和常氧条件下分别显示出选择性的细胞毒性，测定了ROS的产生，细胞周期和DNA片段化。这项初步研究鼓励我们将15和20视为进一步优化的有趣线索。
• New Fluoro Derivatives of the Pyrazolo[5,1-<i>c</i>][1,2,4]benzotriazine 5-Oxide System: Evaluation of Fluorine Binding Properties in the Benzodiazepine Site on γ-Aminobutyrric Acid Type A (GABA_A) Receptor. Design, Synthesis, Biological, and Molecular Modeling Investigation
  作者：Gabriella Guerrini、Giovanna Ciciani、Fabrizio Bruni、Silvia Selleri、Chiara Guarino、Fabrizio Melani、Marina Montali、Simona Daniele、Claudia Martini、Carla Ghelardini、Monica Norcini、Samuele Ciattini、Annarella Costanzo

  DOI：10.1021/jm1001887

  日期：2010.11.11

  search for potent ligands at the benzodiazepine site on the GABAA receptor, new fluoro derivatives of the pyrazolo[5,1-c][1,2,4]benzotriazine system were synthesized to evaluate the importance of the introduction of a fluorine atom in this system. Biological and pharmacological studies indicate that the substitution at position 8 with a trifluoromethyl group confers pharmacological activity due to potential

  在寻找GABA A受体的苯并二氮杂site位点的有效配体时，合成了吡唑并[5,1- c ] [1,2,4]苯并三嗪系统的新含氟衍生物，以评估引入氟的重要性这个系统中的原子。生物学和药理研究表明，与无活性的8-甲基取代类似物相比，由于其潜在的代谢稳定性，在8位被三氟甲基取代的化合物具有药理活性。特别是化合物3-（2-甲氧基苄氧基羰基）-8-三氟甲基吡唑并[5,1- c ] [1,2,4]苯并三嗪5-氧化物（21）的出现是由于其选择性的抗焦虑作用而没有副作用。对我们药效图中所有新合成的化合物的分析证实了结合识别所必需的相互作用点以及亲和力调节的重要区域。仅当氟原子不在位置3时，它才能形成氢键相互作用。
• Novel 3-iodo-8-ethoxypyrazolo[5,1-c][1,2,4]benzotriazine 5-oxide as promising lead for design of α5-inverse agonist useful tools for therapy of mnemonic damage
  作者：Gabriella Guerrini、Giovanna Ciciani、Giovanni Cambi、Fabrizio Bruni、Silvia Selleri、François Besnard、Marina Montali、Claudia Martini、Carla Ghelardini、Nicoletta Galeotti、Annarella Costanzo

  DOI：10.1016/j.bmc.2007.01.053

  日期：2007.4

  binding study of new 3-iodiopyrazolo[5,1-c][1,2,4] benzotriazine 5-oxides 8-alkyloxy substituted are reported. The replacement at position 3 with an iodine atom, with respect to substituents capable to form a three centered hydrogen bond and/or to form pi-pi stacking interaction with receptor protein, gave high affinity ligands, independently of the 8-alkyloxy substituent. High-affinity ligands were studied

  报道了新的3-碘吡唑并[5,1-c] [1,2,4]苯并三嗪5-氧化物被8-烷氧基取代的合成及结合研究。相对于能够形成三个中心氢键和/或与受体蛋白形成π-π堆积相互作用的取代基，在3位用碘原子取代，得到了高亲和力的配体，而与8-烷氧基取代基无关。研究了体内高亲和力配体的药理作用，其中考虑了五种潜在的苯二氮卓类作用：抗焦虑作用，运动协调，抗惊厥作用，小鼠学习和记忆障碍以及乙醇增强作用。化合物5c和5'c具有相反的激动剂分布，并且首次被证明是促记忆的。
• Novel 3-aroylpyrazolo[5,1-c][1,2,4]benzotriazine 5-oxides 8-substituted, ligands at GABAA/benzodiazepine receptor complex: Synthesis, pharmacological and molecular modeling studies
  作者：Gabriella Guerrini、Giovanna Ciciani、Giovanni Cambi、Fabrizio Bruni、Silvia Selleri、Fabrizio Melani、Marina Montali、Claudia Martini、Carla Ghelardini、Monica Norcini、Annarella Costanzo

  DOI：10.1016/j.bmc.2008.02.058

  日期：2008.4

  The synthesis and binding studies of a series of 3-acylpyrazolo[5,1-c][1,2,4]benzotriazine 5-oxides 8-substituted are reported. High-affinity ligands at benzodiazepine site on GABA(A) receptor complex (GABA(A)/BzR complex) were obtained when the 3-aroyl substituent is represented by a five-member heteroaroyl ring (furoyl-, thenoyl-, and pyrroyl-). Moreover the type of heteroaroyl ring at position 3

  报道了一系列3-取代的3-酰基吡唑并[5,1-c] [1,2,4]苯并三嗪5-氧化物的合成和结合研究。当3-芳酰基取代基由五元杂芳酰基环（呋喃酰基-，壬酰基-和吡咯酰基-）代表时，获得了GABA（A）受体复合物（GABA（A）/ BzR复合物）上苯并二氮杂位处的高亲和力配体。 ）。此外，位置3上的杂芳酰基环的类型会影响位置8上的取代基的特性，从而获得高亲和力的配体：位置3上的“氢键受体环”与位置8上的电子给体取代基具有协同作用，而“氢键供体环与抽出取代基协同作用。考虑到六种潜在的苯二氮卓类药物的作用，对化合物8a，9b和11的药理作用进行了体内深入研究：运动协调，抗惊厥作用，自发运动和探索活动，抗焦虑作用，小鼠学习和记忆调节以及乙醇增强作用。为了合理化和定性地解释化合物8a和11的GABA（A）/ Bz结合亲和力，进行了动态分子建模研究，目的是评估蛋白质-配体复合物的优选几何形状。
• Synthesis, in Vivo Evaluation, and Molecular Modeling Studies of New Pyrazolo[5,1-<i>c</i>][1,2,4]benzotriazine 5-Oxide Derivatives. Identification of a Bifunctional Hydrogen Bond Area Related to the Inverse Agonism
  作者：Gabriella Guerrini、Giovanna Ciciani、Giovanni Cambi、Fabrizio Bruni、Silvia Selleri、Chiara Guarino、Fabrizio Melani、Marina Montali、Claudia Martini、Carla Ghelardini、Monica Norcini、Annarella Costanzo

  DOI：10.1021/jm801599a

  日期：2009.8.13

  A new series of pyrazolo[5,1-c-][1,2,4]benzotriazine 5-oxide 8-alkyloxy-/aryloxy-/arylalkyloxy and 8-aryl-/arylalkylderivatives variously substituted at the 3-position were synthesized and binding studies at the benzodiazepine site on GABA(A) receptor were carried out. The pharmacological profile was identified for compounds 10, 11, 16(+), 16(-), and 17 by considering six potential benzodiazepine actions: motor coordination, anticonvulsant action, spontaneous motility and explorative activity, potential anxiolytic-like effects, mouse learning and memory modulation., and finally, ethanol-potentiating action. Compound 17 stands out as the compound that improves mouse memory processes selectively, safely, and in a statistically significant manner. From a ligand-based pharmacophoric model, we identified a hydrogen bond interaction area HBp-3 near the lipophilic area. This new pharmacophoric model allowed us to identify four structural compound typologics and thus to rationalize the affinity data of all compounds.