2-ethoxy-6,7-dimethoxy-(4H)-3,1-benzoxazine-4-one | 107717-48-6

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 苯并恶嗪类
• 英文名称: 2-ethoxy-6,7-dimethoxy-(4H)-3,1-benzoxazine-4-one
• 英文别名: 2-ethoxy-6,7-dimethoxy-4H-3,1-benzoxazine-4-one；6,7-dimethoxy-2-ethoxy-4H-3,1-benzoxazin-4-one；2-Ethoxy-6,7-dimethoxy-4H-3,1-benzoxazin-4-on；6,7-dimethoxy-2-ethoxy-4-oxo-1,3-benzoxazin；2-ethoxy-6,7-dimethoxy-4H-3,1-benzoxazin-4-one；2-ethoxy-6,7-dimethoxy-3,1-benzoxazin-4-one
• CAS: 107717-48-6
• 化学式: C₁₂H₁₃NO₅
• 分子量: 251.239
• InChiKey: PZCMIWLJDPILGG-UHFFFAOYSA-N

物化性质

• 熔点：
  169-170 °C
• 沸点：
  387.4±52.0 °C(Predicted)
• 密度：
  1.29±0.1 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  2
• 重原子数：
  18
• 可旋转键数：
  4
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.33
• 拓扑面积：
  66.4
• 氢给体数：
  0
• 氢受体数：
  6

反应信息

• 作为反应物：
  描述：

  2-ethoxy-6,7-dimethoxy-(4H)-3,1-benzoxazine-4-one 在 甲醇 、 sodium hydride 作用下， 以 苯 为溶剂， 反应 9.0h， 生成 3-acetyl-6,7-dimethoxy-4-hydroxyquinolin-2(1H)-one
  参考文献：
  名称：

  Synthesis of 3-Substituted 4-Hydroxyquinolin-2-ones via C-Acylation Reactions of Active Methylene Compounds with Functionalized 3,1-Benzoxazin-4-ones

  摘要：

  DOI：

  10.3987/com-99-8508
• 作为产物：
  描述：

  2-(ethoxycarbonylamino)-4,5-dimethoxybenzoic acid 在 三聚氯氰 、 三乙胺 作用下， 以 PEG-400 为溶剂， 以90%的产率得到2-ethoxy-6,7-dimethoxy-(4H)-3,1-benzoxazine-4-one
  参考文献：
  名称：

  分步合成2-乙氧基-（4 H）-3,1-苯并恶嗪-4-ones的简便方法

  摘要：

  描述了一种简单实用的路线，可通过邻氨基苯甲酸衍生物与碳酸二乙酯的偶合反应，然后氨基甲酸酯加合物与环戊二酸酯快速环化，合成2-乙氧基-（（4 H）-3,1-苯并恶嗪-4-酮。室温下，在PEG中使用氰尿酰氯和N，N'-二环己基碳二亚胺等脱氢环化剂。在温和的反应条件下，只需对反应混合物进行简单的后处理，即可获得高收率的产品。

  DOI：

  10.1016/j.cclet.2012.01.028

文献信息

• Guanidinum Chloride as Dehydrocyclization Agent in the Synthesis of 2-Fuctionalized (4<i>H</i>)-3,1-Benzoxazine-4-ones
  作者：Farzad Nikpour、Asrin Bahmani、Forugh Havasi、Mahnaz Sharafi-Kolkeshvandi

  DOI：10.1002/jhet.1649

  日期：2014.1

  A facile and expedient route for the synthesis of 2‐ethoxy‐ and 2‐(ethylcarboxylate)‐(4H)‐3,1‐benzoxazine‐4‐ones is described using guanidinium chloride as a safe and convenient dehydrocyclization agent. High yields of the products obtain under mild reaction conditions without need to use of any catalyst and with easy work‐up of the reaction mixture.

  描述了一种使用氯化胍作为安全，方便的脱氢环化剂合成2-乙氧基和2-（乙基羧酸酯）-（4 H）-3,1-苯并恶嗪-4-酮的简便方法。在温和的反应条件下，无需使用任何催化剂即可轻松获得高收率的产品，而且反应混合物的后处理也很容易。
• Nickel-catalyzed Cycloadditions of Benzoxazinones with Alkynes: Synthesis of Quinolines and Quinolones
  作者：Nobuyoshi Maizuru、Tasuku Inami、Takuya Kurahashi、Seijiro Matsubara

  DOI：10.1246/cl.2011.375

  日期：2011.4.5

  A nickel-catalyzed cycloaddition has been developed where readily available benzoxazinones react with alkynes to afford substituted quinolines or quinolones. The specific cycloaddition can be achie...

  已经开发了镍催化的环加成反应，其中容易获得的苯并嗪酮与炔烃反应得到取代的喹啉或喹诺酮。具体的环加成可以实现...
• 2-Oxy-4H-3,1-benzoxazin-4-one derivatives and related compounds
  申请人：SYNTEX (U.S.A.) INC.

  公开号：EP0206323A1

  公开（公告）日：1986-12-30

  2-Oxy-4H-3,1-benzoxazin-4-ones represented by the formula: and the pharmaceutically acceptable acid addition salts thereof, pharmaceutical compositions with serine protease inhibiting effects, therapeutic uses of such compounds and methods for their manufacture are disclosed.

  本发明公开了由式： 的 2-氧基-4H-3,1-苯并恶嗪-4-酮及其药学上可接受的酸加成盐、具有丝氨酸蛋白酶抑制作用的药物组合物、这类化合物的治疗用途及其制造方法均已公开。
• Synthesis and Pharmacological Evaluation of 1-Oxo-2-(3-piperidyl)-1,2,3,4- tetrahydroisoquinolines and Related Analogues as a New Class of Specific Bradycardic Agents Possessing I_f Channel Inhibitory Activity
  作者：Hideki Kubota、Akio Kakefuda、Toshihiro Watanabe、Noe Ishii、Koichi Wada、Noriyuki Masuda、Shuichi Sakamoto、Shin-ichi Tsukamoto

  DOI：10.1021/jm0301742

  日期：2003.10.1

  A series of 1-oxo-2-(3-piperidyl)-1,2,3,4-tetrahydroisoquinolines and related analogues were prepared and evaluated for their bradycardic activities in isolated right atrium and in anesthetized rats. (+/-)-6,7-Dimethoxy-2-1-[3-(3,4-methylenedioxyphenoxy)propyl]-3-piperidyl}-1,2,3,4-tetrahydroisoquinoline (4) was chosen as a lead, and structural modifications were performed on the tetrahydroisoquinoline ring and the terminal aromatic ring. The modifications on the tetrahydroisoquinoline ring revealed that the 1-oxo-1,2,3,4-tetrahydroisoquinoline ring system was optimum structure for both in vitro potency and in vivo efficacy. Furthermore, methoxy, ethoxy, and methoxycarbonyl groups were identified as preferable substituents on the terminal aromatic ring. One of the 1-oxo-1,2,3,4-tetrahydroisoquinoline derivatives, (R)-10a, was further evaluated for its bradycardic activity and inhibitory activity against I-f currents. Compound (R)-10a demonstrated potent bradycardic activity in rats with minimal influence on blood pressure after oral administration. The compound also showed inhibition of I-f currents (IC50 = 0.32 muM) in guinea pig pacemaker cells.
• Leistner; Simon; Wagner, Pharmazie, 1987, vol. 42, # 10, p. 694 - 695
  作者：Leistner、Simon、Wagner、Sturzebecher

  DOI：——

  日期：——

表征谱图