7-ethynyl-1H-indazole | 945761-99-9

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 苯并吡唑类
• 英文名称: 7-ethynyl-1H-indazole
• CAS: 945761-99-9
• 化学式: C₉H₆N₂
• 分子量: 142.16
• InChiKey: RZRGQMHAEDLRBS-UHFFFAOYSA-N

物化性质

• 沸点：
  315.6±15.0 °C(Predicted)
• 密度：
  1.24±0.1 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  1.8
• 重原子数：
  11
• 可旋转键数：
  1
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.0
• 拓扑面积：
  28.7
• 氢给体数：
  1
• 氢受体数：
  1

安全信息

• 危险性防范说明：
  P261,P264,P270,P271,P280,P301+P312,P302+P352,P304+P340,P330,P363,P501
• 危险性描述：
  H302,H312,H332
• 储存条件：
  存储条件：2-8°C，密封保存，置于干燥处。

反应信息

• 作为反应物：
  描述：

  7-ethynyl-1H-indazole 在 copper(l) iodide 、 叠氮基三甲基硅烷 作用下， 以 甲醇 、 N,N-二甲基甲酰胺 为溶剂， 反应 48.0h， 以96%的产率得到7-(1H-[1,2,3]Triazol-5-yl)-1H-indazole
  参考文献：
  名称：

  Inhibitory effects of a series of 7-substituted-indazoles toward nitric oxide synthases: Particular potency of 1H-indazole-7-carbonitrile

  摘要：

  A series of new 7-monosubstituted and 3,7-disubstituted indazoles have been prepared and evaluated as inhibitors of nitric oxide synthases (NOS). 1H-Indazole-7-carbonitrile (6) was found equipotent to 7-nitro-1H-indazole (1) and demonstrated preference for constitutive NOS over inducible NOS. By contrast, 1H-indazole-7-carboxamide (8) was slightly less potent but demonstrated a surprising selectivity for the neuronal NOS. Further substitution of 6 by a Br-atom at carbon-3 of the heterocycle enhanced 10-fold the inhibitory effects. Inhibition of NO formation by 6 appeared to be competitive versus both substrate and the cofactor (6R)-5,6,7,8-tetrahydro-L-biopterin (H4B). In close analogies with 1, compound 6 strongly inhibited the NADPH oxidase activity of nNOS and induced a spin state transition of the heme-Fe-III. Our results are explained with the help of the X-ray structures that identified key-features for binding of 1 at the active site of NOS. (C) 2008 Elsevier Ltd. All rights reserved.

  DOI：

  10.1016/j.bmc.2008.04.056
• 作为产物：
  描述：

  7-硝基吲唑 在 palladium on activated charcoal 、 potassium iodide 盐酸 、 copper(l) iodide 、 硫酸 、 氢气 、 三乙胺 、 三苯基膦 、 sodium nitrite 作用下， 以 乙醇 、 乙腈 为溶剂， 反应 6.0h， 生成 7-ethynyl-1H-indazole
  参考文献：
  名称：

  Efficient Synthesis of 7-Substituted or 3,7-Disubstituted 1H-Indazoles

  摘要：

  此项工作报告了新型吲唑骨架的合成，包括7-OTf-1H-吲唑（三氟甲磺酸1H-吲唑-7-基酯）、7-碘-1H-吲唑及3-溴-7-碘-1H-吲唑。这些新化合物是通过钯催化的交叉偶联反应合成吲唑类分子的有力构建模块。

  DOI：

  10.1055/s-2007-977416

文献信息

• Efficient Synthesis of 7-Substituted or 3,7-Disubstituted 1<i>H</i>-Indazoles
  作者：Dominique Vichard、Betty Cottyn、François Terrier、Pierre Nioche、C. Raman

  DOI：10.1055/s-2007-977416

  日期：——

  This work reports on the synthesis of the novel indazole scaffolds 7-OTf-1H-indazole (trifluoromethanesulfonic acid 1H-­indazol-7-yl ester), 7-iodo-1H-indazole and 3-bromo-7-iodo-1H-indazole. These new compounds are potent building blocks in ­divergent syntheses of indazoles via palladium cross-coupling ­reactions.

  此项工作报告了新型吲唑骨架的合成，包括7-OTf-1H-吲唑（三氟甲磺酸1H-吲唑-7-基酯）、7-碘-1H-吲唑及3-溴-7-碘-1H-吲唑。这些新化合物是通过钯催化的交叉偶联反应合成吲唑类分子的有力构建模块。
• Inhibitory effects of a series of 7-substituted-indazoles toward nitric oxide synthases: Particular potency of 1H-indazole-7-carbonitrile
  作者：Betty Cottyn、Francine Acher、Booma Ramassamy、Luke Alvey、Michel Lepoivre、Yves Frapart、Dennis Stuehr、Daniel Mansuy、Jean-Luc Boucher、Dominique Vichard

  DOI：10.1016/j.bmc.2008.04.056

  日期：2008.6

  A series of new 7-monosubstituted and 3,7-disubstituted indazoles have been prepared and evaluated as inhibitors of nitric oxide synthases (NOS). 1H-Indazole-7-carbonitrile (6) was found equipotent to 7-nitro-1H-indazole (1) and demonstrated preference for constitutive NOS over inducible NOS. By contrast, 1H-indazole-7-carboxamide (8) was slightly less potent but demonstrated a surprising selectivity for the neuronal NOS. Further substitution of 6 by a Br-atom at carbon-3 of the heterocycle enhanced 10-fold the inhibitory effects. Inhibition of NO formation by 6 appeared to be competitive versus both substrate and the cofactor (6R)-5,6,7,8-tetrahydro-L-biopterin (H4B). In close analogies with 1, compound 6 strongly inhibited the NADPH oxidase activity of nNOS and induced a spin state transition of the heme-Fe-III. Our results are explained with the help of the X-ray structures that identified key-features for binding of 1 at the active site of NOS. (C) 2008 Elsevier Ltd. All rights reserved.