methyl (2S)-2-(benzenesulfonamido)-3-(1H-indol-3-yl)propanoate | 1123733-36-7

• 分子结构分类: 有机化合物 - 有机酸及其衍生物 - 羧酸及其衍生物
• 英文名称: methyl (2S)-2-(benzenesulfonamido)-3-(1H-indol-3-yl)propanoate
• CAS: 1123733-36-7
• 化学式: C₁₈H₁₈N₂O₄S
• 分子量: 358.418
• InChiKey: IERMPEPCMUGDBZ-KRWDZBQOSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  2.7
• 重原子数：
  25
• 可旋转键数：
  7
• 环数：
  3.0
• sp3杂化的碳原子比例：
  0.17
• 拓扑面积：
  96.6
• 氢给体数：
  2
• 氢受体数：
  5

反应信息

• 作为反应物：
  描述：

  methyl (2S)-2-(benzenesulfonamido)-3-(1H-indol-3-yl)propanoate 在 氯化铵 、 溶剂黄146 、 三乙胺 、 copper dichloride 、 锌 作用下， 以 四氢呋喃 、 水 、 乙腈 为溶剂， 反应 12.0h， 生成
  参考文献：
  名称：

  Copper-Catalyzed Radical Cyclization To Access 3-Hydroxypyrroloindoline: Biomimetic Synthesis of Protubonine A

  摘要：

  An unprecedented copper-catalyzed intramolecular radical cyclization was developed for the synthesis of 3-hydroxypyrroloindoline skeletons in excellent yields. The 3-hydroxyl group was introduced by trapping the radical intermediate with molecular oxygen or TEMPO. This process represents a unique radical oxidation pathway for tryptamine/tryptophan derivatives and allows a rapid biomimetic synthesis of natural product protubonine A.

  DOI：

  10.1021/ol501287x

文献信息

• Copper-Mediated Dimerization to Access 3a,3a′-Bispyrrolidinoindoline: Diastereoselective Synthesis of (+)-WIN 64821 and (−)-Ditryptophenaline
  作者：Kangjiang Liang、Xu Deng、Xiaogang Tong、Dashan Li、Ming Ding、Ankun Zhou、Chengfeng Xia

  DOI：10.1021/ol5032365

  日期：2015.1.16

  when different protecting groups of Nb are utilized. This dimerization reaction could be conducted in gram scale. With this dimerization method, both endocyclotryptophan (+)-WIN 64821 and exocyclotryptophan (−)-ditryptophenaline were synthesized in 5 steps.

  铜介导的色胺或色氨酸的环化和二聚化一步一步就产生了具有两个连续的立体生季碳的C 2对称C 3（sp 3）–C 3（sp 3）桥。令人印象深刻的是，当使用不同的Nb保护基时，外环和内环化产物之间的比率会发生变化。该二聚反应可以以克为单位进行。通过这种二聚化方法，以5个步骤合成了内环色氨酸（+）-WIN 64821和外环色氨酸（-）-二苯甲酚。
• Copper-Catalyzed Radical Cyclization To Access 3-Hydroxypyrroloindoline: Biomimetic Synthesis of Protubonine A
  作者：Xu Deng、Kangjiang Liang、Xiaogang Tong、Ming Ding、Dashan Li、Chengfeng Xia

  DOI：10.1021/ol501287x

  日期：2014.6.20

  An unprecedented copper-catalyzed intramolecular radical cyclization was developed for the synthesis of 3-hydroxypyrroloindoline skeletons in excellent yields. The 3-hydroxyl group was introduced by trapping the radical intermediate with molecular oxygen or TEMPO. This process represents a unique radical oxidation pathway for tryptamine/tryptophan derivatives and allows a rapid biomimetic synthesis of natural product protubonine A.