quinazoline-4-carbonamide | 16499-37-9

• 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: quinazoline-4-carbonamide
• 英文别名: quinazoline-4-carboxamide；4-quinazolinecarboxamide；quinazoline-4-carboxylic acid amide
• CAS: 16499-37-9
• 化学式: C₉H₇N₃O
• 分子量: 173.174
• InChiKey: CBFHHXZSENSSMA-UHFFFAOYSA-N

物化性质

• 熔点：
  171-172 °C
• 沸点：
  435.6±18.0 °C(Predicted)
• 密度：
  1.345±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  0.2
• 重原子数：
  13
• 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：
  68.9
• 氢给体数：
  1
• 氢受体数：
  3

反应信息

• 作为产物：
  描述：

  3-benzoyl-3,4-dihydro-4-quinazolinecarbonitrile 在 氢溴酸 作用下， 以 溶剂黄146 为溶剂， 反应 3.0h， 以11%的产率得到quinazoline-4-carbonamide
  参考文献：
  名称：

  Kant, Joydeep; Popp, Frank D.; Uff, Barrie C., Journal of Heterocyclic Chemistry, 1985, vol. 22, p. 1313 - 1316

  摘要：

  DOI：

文献信息

• Metal-, Photocatalyst-, and Light-Free Direct C–H Acylation and Carbamoylation of Heterocycles
  作者：Matthew T. Westwood、Claire J. C. Lamb、Daniel R. Sutherland、Ai-Lan Lee

  DOI：10.1021/acs.orglett.9b02679

  日期：2019.9.6

  Direct C-H acylations and carbamoylations of heterocycles can now be readily achieved without requiring any conventional metal, photocatalyst, electrocatalysis, or light activation, thus significantly improving on sustainability, costs, toxicity, waste, and simplicity of the operational procedure. These mild conditions are also suitable for gram-scale reactions and late-stage functionalizations of

  现在可以轻松实现杂环的直接CH酰化和氨基甲酰化，而无需任何常规的金属，光催化剂，电催化或光活化作用，从而显着提高了可持续性，成本，毒性，浪费和操作程序的简便性。这些温和条件也适用于复杂分子的克级反应和后期功能化，包括药物，N，N-配体和光敏分子。
• Carbon-Carbon Bond Cleavage of .ALPHA.-Hydroxybenzylheteroarenes Catalyzed by Cyanide Ion: Retro-Benzoin Condensation Affords Ketones and Heteroarenes and Benzyl Migration Affords Benzylheteroarenes and Arenecarbaldehydes.
  作者：Yumiko SUZUKI、Yuki TAKEMURA、Ken-ichi IWAMOTO、Takeo HIGASHINO、AKira MIYASHITA

  DOI：10.1248/cpb.46.199

  日期：——

  4-(α-Benzyl-α-hydroxybenzyl)quinazoline (4a) underwent retro-benzoin condensation catalyzed by cyanide ion to give deoxybenzoin (2a) and quinazoline (5a). Similarly, several nitrogen-containing heteroarenes (4, 9, 12, 16-19) having an α-hydroxybenzyl group at the α-position of the nitrogen underwent retro-benzoin type condensation to afford ketones (2) and heteroarenes (5). However, similar reaction of pyrazolopyrimidines (13, 14, 15) having an α-benzyl-α-hydroxybenzyl group resulted in benzyl migration, giving benzylpyrazolopyrimidines (8) and arenecarbaldehydes (3). Tetrabutylammonium cyanide (11, Bu4NCN) was a more effective cyanide ion donor than KCN (10). The retro-benzoin condensation was applied to the synthesis of 2-substituted quinazolines (38) from 2-chloro-4-aroylquinazolines (34), using the aroyl group as a protecting and electron-withdrawing group.

  4-(α-苄基-α-羟基苄基)喹唑啉(4a)在氰离子催化下经历逆苯偶姻缩合反应，生成脱氧苯偶姻(2a)和喹唑啉(5a)。同样，多个含氮杂环芳烃(4, 9, 12, 16-19)在其氮原子的α位上具有α-羟基苄基的结构，也经历逆苯偶姻型缩合反应，生成了酮(2)和杂环芳烃(5)。然而，具有α-苄基-α-羟基苄基结构的吡唑嘧啶(13, 14, 15)在类似的反应中引发了苄基迁移，生成了苄基吡唑嘧啶(8)和芳烃羰醛(3)。四丁基铵氰(11, Bu4NCN)比KCN(10)更有效地作为氰离子的供体。逆苯偶姻缩合反应被应用于从2-氯-4-芳酰基喹唑啉(34)合成2-取代喹唑啉(38)，使用芳酰基作为保护和电子 withdrawing 基团。
• [EN] COMPOUNDS WHICH INHIBIT RNA POLYMERASE, COMPOSITIONS INCLUDING SUCH COMPOUNDS, AND THEIR USE<br/>[FR] COMPOSÉS QUI INHIBENT L'ARN POLYMÉRASE, COMPOSITIONS COMPRENANT DE TELS COMPOSÉS, ET LEUR UTILISATION
  申请人：UNIV JOHNS HOPKINS

  公开号：WO2015143293A1

  公开（公告）日：2015-09-24

  RNA polymerase I (Pol I) is a dedicated polymerase for the transcription of the 47S ribosomal RNA precursor subsequently processed into the mature 5.8S, 18S and 28S ribosomal RNAs and assembled into ribosomes in the nucleolus. Pol I activity is commonly deregulated in human cancers. Based on the discovery of lead molecule BMH-21, a series of pyridoquinazolinecarboxamides were synthesized as inhibitors of Pol I and activators of the destruction of RPA194, the Pol I large catalytic subunit protein. The present invention identifies a set of bioactive compounds, including purified stereoisomers, that potently cause RPA194 degradation that function in a tightly constrained chemical space. Pharmaceutical compositions comprising these compounds and their uses in cancer and other Pol I related diseases is also provided.

  RNA聚合酶I（Pol I）是专门用于转录47S核糖体RNA前体的聚合酶，随后将其加工成成熟的5.8S、18S和28S核糖体RNA，并在核仁中组装成核糖体。Pol I活性在人类癌症中常常失调。基于引物分子BMH-21的发现，合成了一系列吡啶喹唑啉羧酰胺作为Pol I的抑制剂和RPA194的破坏激活剂，RPA194是Pol I的大催化亚基蛋白。本发明确定了一组生物活性化合物，包括纯化的立体异构体，它们能够有效地导致RPA194的降解，这些化合物在一个严格受限制的化学空间中发挥作用。还提供了包括这些化合物的药物组合物及其在癌症和其他与Pol I相关疾病中的用途。
• Spiroheptane salicylamides and related compounds as inhibitors of ROCK
  申请人：BRISTOL-MYERS SQUIBB COMPANY

  公开号：US10829501B2

  公开（公告）日：2020-11-10

  The present invention provides compounds of Formula (I): or stereoisomers, tautomers, or pharmaceutically-acceptable salts thereof, wherein all the variables are as defined herein. These compounds are selective ROCK inhibitors. This invention also relates to pharmaceutical compositions comprising these compounds and methods of treating cardiovascular, smooth muscle, oncologic, neuropathologic, autoimmune, fibrotic, and/or inflammatory disorders using the same.

  本发明提供了式 (I) 的化合物： 或其立体异构体、同系物或药学上可接受的盐，其中所有变量如本文所定义。这些化合物是选择性 ROCK 抑制剂。本发明还涉及包含这些化合物的药物组合物，以及使用这些化合物治疗心血管、平滑肌、肿瘤、神经病理、自身免疫、纤维化和/或炎症性疾病的方法。
• Carbon-Carbon Bond Cleavage of a-Hydroxybenzylheteroarenes to Ketones and Heteroarenes by Catalytic Action of Cyanide Ion Based on Retro-Benzoin Condensation
  作者：Akira Miyashita、Yumiko Suzuki、Yuki Takemura、Ken-ichi Iwamoto、Takeo Higashino

  DOI：10.3987/com-96-7618

  日期：——

  Treatment of 4-(alpha-benzyl-alpha-hydroxybenzyl)quinazoline (2a) with potassium cyanide in DMF resulted in carbon-carbon bond cleavage to give benzyl phenyl ketone (3a) and quinazoline (4). Similar results were obtained with other 4-(alpha-hydroxybenzyl)quinazolines (2b-f and 7a). This reaction proceeds through retrobenzoin condensation. This condensation also proceeded in pyrazolopyrimidine (9a) triazolopyrimidine (10a), quinoxaline (11a), and benzimidazole (12a), and the imidazolium salt (16) was an effective catalyst.

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