2-p-tolyl-3H-pteridin-4-one | 155513-87-4

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 蝶啶及其衍生物
• 英文名称: 2-p-tolyl-3H-pteridin-4-one
• 英文别名: 2-p-Tolyl-3H-pteridin-4-on；2-(4-Methylphenyl)-4(1H)-pteridinone；2-(4-methylphenyl)-3H-pteridin-4-one
• CAS: 155513-87-4
• 化学式: C₁₃H₁₀N₄O
• 分子量: 238.249
• InChiKey: NEWUJTGSJHUANZ-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  1.2
• 重原子数：
  18
• 可旋转键数：
  1
• 环数：
  3.0
• sp3杂化的碳原子比例：
  0.08
• 拓扑面积：
  67.2
• 氢给体数：
  1
• 氢受体数：
  4

反应信息

• 作为产物：
  描述：

  6-amino-2-p-tolyl-3H-pyrimidin-4-one 在 sodium dithionite 、 水 作用下， 生成 2-p-tolyl-3H-pteridin-4-one
  参考文献：
  名称：

  Andrisano; Maioli, Gazzetta Chimica Italiana, 1953, vol. 83, p. 264,266

  摘要：

  DOI：

文献信息

• Dihalogentriphenylphosphorane in der Heterocyclensynthese, 29.¹Eine einfache Synthese von Pteridin-4-onen aus 3-Amino-2-pyrazincarbonsäuremethylester und Pyrazino[3,1]oxazin-4-onen
  作者：Heinrich Wamhoff、Elmar Kroth

  DOI：10.1055/s-1994-25487

  日期：——

  Dihalogentriphenylphosphoranes in the Synthesis of Heterocycles, 29.1 A Simple Synthesis of Pteridin-4-ones, from Methyl 3-Amino-2-pyrazinecarboxylate and Pyrazino[3,1]oxazin-4-ones Methyl 3-amino-2-pyrazinecarboxylate(3) affords the synthetically useful 3-aroylaminopyrazin-2-carboxylates 5a-f with aroyl chlorides, which are converted with dibromotriphenylphosphorane into 2-arylpyrazino[2,3-d][3,1]oxazin-4-ones 6a-f. Nucleophilic attack at the carbonyl function of these oxazinones results in ring cleaved amides which can be recyclized with dibromotriphenylphosphorane to afford 2-arylpteridin-4-ones 7a-f.

  对苯基膦盐在杂环合成中的应用，29.1 简单合成4-氮杂嘧啶酮，从甲基3-氨基-2-吡嗪羧酸酯和吡嗪[3,1]噁嗪-4-酮。甲基3-氨基-2-吡嗪羧酸酯（3）与酰氯反应生成合成上有用的3-酰氨基吡嗪-2-羧酸酯5a-f，随后与二溴三苯基膦反应，生成2-芳基吡嗪[2,3-d][3,1]噁嗪-4-酮6a-f。对这些噁嗪酮的羰基官能团进行亲核攻击，产生开环的酰胺，这些酰胺可以与二溴三苯基膦再循环，生成2-芳基4-氮杂嘧啶酮7a-f。
• Adenosine-Mimicking Derivatives of 3-Aminopyrazine-2-Carboxamide: Towards Inhibitors of Prolyl-tRNA Synthetase with Antimycobacterial Activity
  作者：Vinod Sukanth Kumar Pallabothula、Marek Kerda、Martin Juhás、Ondřej Janďourek、Klára Konečná、Pavel Bárta、Pavla Paterová、Jan Zitko

  DOI：10.3390/biom12111561

  日期：——

  Multidrug-resistant tuberculosis (MDR-TB) poses a significant threat to mankind and as such earned its place on the WHO list of priority pathogens. New antimycobacterials with a mechanism of action different to currently used agents are highly required. This study presents the design, synthesis, and biological evaluation of 3-acylaminopyrazine-2-carboxamides derived from a previously reported inhibitor of human prolyl-tRNA synthetase. Compounds were evaluated in vitro against various strains of mycobacteria, pathogenic bacteria, and fungi of clinical significance. In general, high activity against mycobacteria was noted, while the antibacterial and antifungal activity was minimal. The most active compounds were 4’-substituted 3-(benzamido)pyrazine-2-carboxamides, exerting MIC (Minimum Inhibitory Concentration) from 1.95 to 31.25 µg/mL. Detailed structure–activity relationships were established and rationalized in silico with regard to mycobacterial ProRS as a probable target. The active compounds preserved their activity even against multidrug-resistant strains of Mycobacterium tuberculosis. At the same time, they were non-cytotoxic against HepG2 human hepatocellular carcinoma cells. This project is the first step in the successful repurposing of inhibitors of human ProRS to inhibitors of mycobacterial ProRS with antimycobacterial activity.

  耐多药结核病（MDR-TB）对人类构成重大威胁，因此被列入世界卫生组织的优先病原体名单。我们亟需作用机制不同于现有药物的新型抗霉菌药物。本研究介绍了 3-酰基氨基吡嗪-2-羧酰胺的设计、合成和生物学评价，这些化合物来自以前报道的一种人类脯氨酰-tRNA 合成酶抑制剂。研究人员对化合物进行了体外评估，以检测其对各种分枝杆菌、致病菌和具有临床意义的真菌的活性。总的来说，这些化合物对分枝杆菌具有很高的活性，而抗菌和抗真菌活性则微乎其微。活性最强的化合物是 4'-取代的 3-（苯甲酰胺基）吡嗪-2-甲酰胺类化合物，其最低抑菌浓度（MIC）从 1.95 微克/毫升到 31.25 微克/毫升不等。以分枝杆菌 ProRS 为可能的靶标，建立了详细的结构-活性关系，并在硅学中加以合理化。这些活性化合物即使对结核分枝杆菌的耐多药菌株也能保持活性。同时，它们对 HepG2 人类肝癌细胞无毒性。该项目是将人类 ProRS 抑制剂成功转化为具有抗分枝杆菌活性的分枝杆菌 ProRS 抑制剂的第一步。