14-hydroxy-13-oxo-13H-[1]benzopyrano[2,3-j]phenanthridine-4-carboxylic acid | 1256668-40-2

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 苯并吡喃
• 英文名称: 14-hydroxy-13-oxo-13H-[1]benzopyrano[2,3-j]phenanthridine-4-carboxylic acid
• 英文别名: 14-Methoxy-13-oxochromeno[2,3-j]phenanthridine-4-carboxylic acid
• CAS: 1256668-40-2
• 化学式: C₂₂H₁₃NO₅
• 分子量: 371.349
• InChiKey: MBKPPXMYOTVJQT-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  4
• 重原子数：
  28
• 可旋转键数：
  2
• 环数：
  5.0
• sp3杂化的碳原子比例：
  0.05
• 拓扑面积：
  85.7
• 氢给体数：
  1
• 氢受体数：
  6

反应信息

• 作为产物：
  描述：

  4,7-dihydro-15-methoxy-[1]benzopyrano[2,3-j]isoxazolo[4,3,2-de]phenanthridine-4,14-dione 以 氘代氯仿 为溶剂， 生成 14-hydroxy-13-oxo-13H-[1]benzopyrano[2,3-j]phenanthridine-4-carboxylic acid
  参考文献：
  名称：

  Synthesis of Hexacyclic Parnafungin A and C Models

  摘要：

  A convergent, practical route to unstable hexacyclic parnafungin A and C models has been developed. Two iodoxanthones were prepared in four or five steps (33-50% overall yield). Suzuki-Miyaura coupling of the iodoxanthones with excess readily available 3-carbomethoxy-2-nitrophenyl pinacol boronate afforded the hindered highly functionalized 2-arylxanthones (53-58%) in the first key step. In the second key step, zinc reduction gave benzisoxazolinones that were treated with MsCl and then base to generate the unstable hexacyclic parnafungin A (13% overall yield for 8 steps) and C (8% overall yield for 9 steps) models. Analogously to the parnafungins, hexacyclic parnafungin C model decomposes to a phenanthridine with a half-life of 2 d in CDCI3.

  DOI：

  10.1021/jo101826p

文献信息

• Synthesis of Hexacyclic Parnafungin A and C Models
  作者：Quan Zhou、Barry B. Snider

  DOI：10.1021/jo101826p

  日期：2010.12.3

  A convergent, practical route to unstable hexacyclic parnafungin A and C models has been developed. Two iodoxanthones were prepared in four or five steps (33-50% overall yield). Suzuki-Miyaura coupling of the iodoxanthones with excess readily available 3-carbomethoxy-2-nitrophenyl pinacol boronate afforded the hindered highly functionalized 2-arylxanthones (53-58%) in the first key step. In the second key step, zinc reduction gave benzisoxazolinones that were treated with MsCl and then base to generate the unstable hexacyclic parnafungin A (13% overall yield for 8 steps) and C (8% overall yield for 9 steps) models. Analogously to the parnafungins, hexacyclic parnafungin C model decomposes to a phenanthridine with a half-life of 2 d in CDCI3.