6-chloro-3-(4-fluorophenyl)-[1,2,4]triazolo[3,4-a]phthalazine | 87539-74-0

• 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: 6-chloro-3-(4-fluorophenyl)-[1,2,4]triazolo[3,4-a]phthalazine
• CAS: 87539-74-0
• 化学式: C₁₅H₈ClFN₄
• 分子量: 298.707
• InChiKey: MXWVKPMIKBWYFY-UHFFFAOYSA-N

物化性质

• 密度：
  1.51±0.1 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  3.74
• 重原子数：
  21.0
• 可旋转键数：
  1.0
• 环数：
  4.0
• sp3杂化的碳原子比例：
  0.0
• 拓扑面积：
  43.08
• 氢给体数：
  0.0
• 氢受体数：
  4.0

反应信息

• 作为反应物：
  描述：

  2-吡啶甲醇 、 6-chloro-3-(4-fluorophenyl)-[1,2,4]triazolo[3,4-a]phthalazine 在 sodium hydride 作用下， 以 N,N-二甲基甲酰胺 为溶剂， 生成 3-(4-Fluoro-phenyl)-6-(pyridin-2-ylmethoxy)-[1,2,4]triazolo[3,4-a]phthalazine
  参考文献：
  名称：

  3-Phenyl-6-(2-pyridyl)methyloxy-1,2,4-triazolo[3,4-a]phthalazines and Analogues:  High-Affinity γ-Aminobutyric Acid-A Benzodiazepine Receptor Ligands with α2, α3, and α5-Subtype Binding Selectivity over α1

  摘要：

  Studies with our screening lead 5 and the literature compound 6 led to the identification of 6-benzyloxy-3-(4-methoxy)phenyl-1,2,4-triazolo[3,4-a]phthalazine 8 as a ligand with binding selectivity for the gamma-aminobutyric acid-A (GABA-A) alpha3- and alpha5-containing receptor subtypes over the GABA-A alpha1 subtype (K-i: alpha2 = 850 nM, alpha3 = 170 nM, alpha5 = 72 nM, alpha1 = 1400 nM). Early optimization studies identified the close analogue 10 (Ki: alpha2 = 16 nM, alpha3 = 41 nM, alpha5 = 38 nM, alpha1 = 280 nM) as a suitable lead for further study. High-affinity ligands were identified by replacing the 6-benzyloxy group of compound 10 with 2-pyridylmethoxy (compound 29), but binding selectivity was not enhanced (K-i: alpha2 = 1.7 nM, alpha3 = 0.71 nM, alpha5 = 0.33 nM, alpha1 = 2.7 nM). Furthermore, on evaluation in xenopus oocytes,(22) 29 was discovered to be a weak to moderate inverse agonist at all four receptor subtypes (alpha1, -7%; alpha2, -5%; alpha3, -16%; alpha5, -5%). Replacement of the 3-phenyl group of 29 with alternatives led to reduced affinity, and smaller 3-substituents led to reduced efficacy. Methyl substitution of the benzo-fused ring of 29 at the 7-, 8-, and 10-positions resulted in increased efficacy although selectivity was abolished. Increased efficacy and retention of selectivity for alpha3 over alpha1 was achieved with the 7,8,9,10-tetrahydro-(7,10-ethano)-phthalazine 62. Compound 62 is currently one of the most binding selective GABA-A alpha3-benzodiazepine-site partial agonists known, and although its selectivity is limited, its good pharmacokinetic profile in the rat (33% oral bioavailability after a 3 mg/kg dose, reaching a peak plasma concentration of 179 ng/mL; half-life of I h) made it a useful pharmacological tool to explore the effect of a GABA-A alpha2/alpha3 agonist in vivo.

  DOI：

  10.1021/jm031020p
• 作为产物：
  描述：

  1-chloro-4-hydrazinophthalazine 、 对氟苯甲酰氯 在 三乙胺 作用下， 以 1,4-二氧六环 为溶剂， 反应 5.0h， 以65%的产率得到6-chloro-3-(4-fluorophenyl)-[1,2,4]triazolo[3,4-a]phthalazine
  参考文献：
  名称：

  6-（烷基氨基）-3-芳基-1,2,4-三唑并[3,4-a]酞嗪。一类新的苯二氮杂receptor受体配体。

  摘要：

  研究表明，一些6-（烷基氨基）-3-芳基-1,2,4-三唑并[3,4-a]酞嗪在体外能从大鼠脑特异性结合位点置换地西epa，Ki（nM）值可与在体内具有抗惊厥药（戊四氮试验，小鼠）和抗冲突活性（Vogel试验，大鼠）。对于N，N-双（2-甲氧基乙基）-3-（4-甲氧基苯基）-1,2，已经证明了引起抗冲突作用的剂量（Vogel试验，大鼠）和损害运动协调的剂量（rotarod试验，大鼠）之间的隔离，4-三唑并[3，4-a]酞嗪6-胺（80）。与地西epa不同，该化合物在对抗士的宁（小鼠）和最大的电击（小鼠）引起的惊厥和“攻击性猴子”模型中无效。

  DOI：

  10.1021/jm00401a010

文献信息

• TARZIA, GIORGIO;OCCELLI, EMILIO;TOJA, EMILIO;BARONE, DOMENICO;CORSICO, NE+, J. MED. CHEM., 31,(1988) N 6, 1115-1123
  作者：TARZIA, GIORGIO、OCCELLI, EMILIO、TOJA, EMILIO、BARONE, DOMENICO、CORSICO, NE+

  DOI：——

  日期：——