2-(3,4-dihydro-6-nitro-3-oxo-2H-1,4-benzoxazin-4-yl)-N-methylacetamide

• 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-(3,4-dihydro-6-nitro-3-oxo-2H-1,4-benzoxazin-4-yl)-N-methylacetamide
• 英文别名: N-methyl-2-(6-nitro-3-oxo-1,4-benzoxazin-4-yl)acetamide
• 化学式: C₁₁H₁₁N₃O₅
• 分子量: 265.225
• InChiKey: UOBLTDBTOFPZCI-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  0.2
• 重原子数：
  19
• 可旋转键数：
  2
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.27
• 拓扑面积：
  105
• 氢给体数：
  1
• 氢受体数：
  5

反应信息

• 作为产物：
  描述：

  2-氨基-4-硝基苯酚 在 sodium hydride 、 碳酸氢钠 、 potassium carbonate 作用下， 以 四氢呋喃 、 氯仿 、 N,N-二甲基甲酰胺 为溶剂， 反应 18.75h， 生成 2-(3,4-dihydro-6-nitro-3-oxo-2H-1,4-benzoxazin-4-yl)-N-methylacetamide
  参考文献：
  名称：

  Synthesis by microwave irradiation of a substituted benzoxazine parallel library with preferential relaxant activity for guinea pig trachealis

  摘要：

  An efficient, facile, and practical parallel combinatorial synthesis of substituted-benzoxazines under microwave irradiation was described. The procedure involved the use of a microwave oven especially designed for organic synthesis suitable for parallel synthesis of solution libraries. A demonstration 19-membered library of substituted N,N-dimethyl- and N-methyl-benzoxazine amide derivatives, structurally related to the potassium channel opener cromakalim, was generated by both conventional and microwave procedures, achieving a reduction from 7 h to 30-36 min in library generation time for the microwave approach. All the synthesized compounds were tested using the in vitro models of rat aorta and guinea pig trachea rings pre-contracted with phenylephrine and carbachol, respectively. All N,N-dimethyl amide derivatives showed a relaxant activity higher on guinea pig trachea rings than on rat aorta rings. (C) 2004 Elsevier SAS. All rights reserved.

  DOI：

  10.1016/j.ejmech.2004.05.003

文献信息

• 3,4-dihydro-2H-1,4-benzoxazine derivatives and pharmaceutical
  申请人：Yamanouchi Pharmaceutical Co., Ltd.

  公开号：US05420126A1

  公开（公告）日：1995-05-30

  Novel benzoxazine derivatives of the formula (I): ##STR1## are provided as well as their pharmaceutically acceptable salts and a method for their use as potassium channel activating agents 2-(3,4-Dihydro-2, 2-dimethyl-6-phenylsulfonyl-2H-1,4-benzoxazin-4-yl)pyridine N-oxide is illustrative of a benzoxazine derivative of formula (I). Also provided are intermediate compounds such as those of formula (II): ##STR2##

  提供了一种新颖的苯并恶唑衍生物，其化学公式为(I): ##STR1##，以及它们的药用可接受盐和一种方法，用于将它们用作激活钾通道的剂2-(3,4-二氢-2,2-二甲基-6-苯磺酰基-2H-1,4-苯并恶唑-4-基)吡啶N-氧化物是公式(I)的苯并恶唑衍生物的示例。还提供了诸如公式(II)的中间化合物:##STR2##
• Benzoxazine derivatives, their preparation and pharmaceutical compositions containing them
  申请人：YAMANOUCHI PHARMACEUTICAL CO. LTD.

  公开号：EP0432893A2

  公开（公告）日：1991-06-19

  A novel benzoxazine derivative of the formula (I): and a pharmaceutically acceptable salt thereof which are useful as potassium channel activating agents are disclosed.

  本研究公开了一种新型的式 (I) 苯并恶嗪衍生物： 及其药学上可接受的盐，可用作钾通道激活剂。
• US5420126A
  申请人：——

  公开号：US5420126A

  公开（公告）日：1995-05-30
• Synthesis by microwave irradiation of a substituted benzoxazine parallel library with preferential relaxant activity for guinea pig trachealis
  作者：Giuseppe Caliendo、Elisa Perissutti、Vincenzo Santagada、Ferdinando Fiorino、Beatrice Severino、Donatella Cirillo、Roberta d’Emmanuele di Villa Bianca、Laura Lippolis、Aldo Pinto、Raffaella Sorrentino

  DOI：10.1016/j.ejmech.2004.05.003

  日期：2004.10

  An efficient, facile, and practical parallel combinatorial synthesis of substituted-benzoxazines under microwave irradiation was described. The procedure involved the use of a microwave oven especially designed for organic synthesis suitable for parallel synthesis of solution libraries. A demonstration 19-membered library of substituted N,N-dimethyl- and N-methyl-benzoxazine amide derivatives, structurally related to the potassium channel opener cromakalim, was generated by both conventional and microwave procedures, achieving a reduction from 7 h to 30-36 min in library generation time for the microwave approach. All the synthesized compounds were tested using the in vitro models of rat aorta and guinea pig trachea rings pre-contracted with phenylephrine and carbachol, respectively. All N,N-dimethyl amide derivatives showed a relaxant activity higher on guinea pig trachea rings than on rat aorta rings. (C) 2004 Elsevier SAS. All rights reserved.