1,2,4-Triazolo(3,4-a)phthalazin-6-amine, 3-phenyl-N-(phenylmethyl)- | 87539-93-3

• 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: 1,2,4-Triazolo(3,4-a)phthalazin-6-amine, 3-phenyl-N-(phenylmethyl)-
• 英文别名: N-benzyl-3-phenyl-[1,2,4]triazolo[3,4-a]phthalazin-6-amine
• CAS: 87539-93-3
• 化学式: C₂₂H₁₇N₅
• 分子量: 351.41
• InChiKey: BGZRYVWWMJHNHC-UHFFFAOYSA-N

物化性质

• 熔点：
  293-294 °C
• 密度：
  1.28±0.1 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  4.5
• 重原子数：
  27
• 可旋转键数：
  4
• 环数：
  5.0
• sp3杂化的碳原子比例：
  0.05
• 拓扑面积：
  55.1
• 氢给体数：
  1
• 氢受体数：
  4

反应信息

• 作为产物：
  描述：

  1,4-二氯酞嗪 在 三乙胺 作用下， 以 1,4-二氧六环 为溶剂， 反应 68.0h， 生成 1,2,4-Triazolo(3,4-a)phthalazin-6-amine, 3-phenyl-N-(phenylmethyl)-
  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

文献信息

• Solid-phase synthesis of [1,2,4]triazolo[3,4-a]phthalazine and tetrazolo[5,1-a]phthalazine derivatives
  作者：Jong Yeon Hwang、Hyung-Sub Choi、Young-Dae Gong

  DOI：10.1016/j.tetlet.2005.02.154

  日期：2005.4

  A general method is reported for the solid-phase synthesis of [1,2,4]triazolo[3,4-a]phthalazine and tetrazolo[5,1-a]phthalazine derivatives based on the cyclization of resin-bound chlorophthalazines 4 with various hydrazides or sodium azide. The resin-bound chlorophthalazines 4, produced by nucleophilic aromatic substitution reaction of dichlorophthalazine with the secondary amine resins 2, served

  据报道，基于树脂结合的氯酞嗪4的环化作用，固相合成[1,2,4]三唑并[3,4- a ]邻苯二甲腈和四唑并[5,1- a ]邻苯二嗪衍生物的通用方法。各种酰肼或叠氮化钠。通过二氯酞嗪与仲胺树脂2的亲核芳族取代反应生产的与树脂结合的氯邻苯二甲腈4用作后续的三唑并酞菁树脂6和四唑并酞菁树脂8的关键中间体，它们以良好的收率和纯度提供了所需的产物7和9。 。
• 6-(Alkylamino)-3-aryl-1,2,4-triazolo[3,4-a]phthalazines. A new class of benzodiazepine receptor ligands
  作者：Giorgio Tarzia、Emilio Occelli、Emilio Toja、Domenico Barone、Nerina Corsico、Licia Gallico、Franco Luzzani

  DOI：10.1021/jm00401a010

  日期：1988.6

  Some 6-(alkylamino)-3-aryl-1,2,4-triazolo[3,4-a]phthalazines have been shown to displace diazepam from rat brain specific binding sites, in vitro, with Ki (nM) values comparable to those of reference benzodiazepines and to have anticonvulsant (pentylenetetrazole test, mice) and anticonflict activity (Vogel test, rat) in vivo. Separation between the doses causing anticonflict effects (Vogel test, rat)

  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。
• 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：——
• 3-Phenyl-6-(2-pyridyl)methyloxy-1,2,4-triazolo[3,4-<i>a</i>]phthalazines and Analogues:  High-Affinity γ-Aminobutyric Acid-A Benzodiazepine Receptor Ligands with α2, α3, and α5-Subtype Binding Selectivity over α1
  作者：Robert W. Carling、Kevin W. Moore、Leslie J. Street、Deborah Wild、Catherine Isted、Paul D. Leeson、Steven Thomas、Desmond O'Connor、Ruth M. McKernan、Katherine Quirk、Susan M. Cook、John R. Atack、Keith A. Wafford、Sally A. Thompson、Gerard R. Dawson、Pushpinder Ferris、José L. Castro

  DOI：10.1021/jm031020p

  日期：2004.3.1

  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.