tert-butyl 1-cyano-6,7-dimethoxy-3,4-dihydroisoquinoline-2(1H)-carboxylate | 1357103-89-9

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 四氢异喹啉
• 英文名称: tert-butyl 1-cyano-6,7-dimethoxy-3,4-dihydroisoquinoline-2(1H)-carboxylate
• 英文别名: (±)-tert-Butyl 1-cyano-6,7-dimethoxy-3,4-dihydroisoquinoline-2(1H)-carboxylate
• CAS: 1357103-89-9
• 化学式: C₁₇H₂₂N₂O₄
• 分子量: 318.373
• InChiKey: DLSPHNHKJHFBMR-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  3.06
• 重原子数：
  23.0
• 可旋转键数：
  2.0
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.53
• 拓扑面积：
  71.79
• 氢给体数：
  0.0
• 氢受体数：
  5.0

反应信息

• 作为反应物：
  描述：

  tert-butyl 1-cyano-6,7-dimethoxy-3,4-dihydroisoquinoline-2(1H)-carboxylate 在 吡啶 、 氢气 、 三氟乙酸 、 sodium hydroxide 作用下， 以 甲醇 、 二氯甲烷 为溶剂， 反应 16.5h， 生成 9,10-dimethoxy-2-(4-(trifluoromethyl)benzoyl)-2,3,6,7-tetrahydro-1H-pyrazino[2,1-a]isoquinolin-4(11bH)-one
  参考文献：
  名称：

  Synthesis of new praziquantel analogues: Potential candidates for the treatment of schistosomiasis

  摘要：

  An efficient synthesis of antischistosomal drug praziquantel and analogues was achieved and the synthetic route designed was to afford structurally diverse analogues for better structure-activity relationship understanding. Total of nineteen PZQ analogues with structural variations at amide, piperazine and aromatic moieties have been synthesized and fully characterized. Among all the new analogues tested for antischistosomal activity, one dimethoxy tetrahydroisoquinoline analogue and two tetrahydro-beta-carboline analogues exhibited moderate activity against adult Schistosoma mansoni. Tetrahydro-beta-carboline analogues showed moderate activity whereas the presence of p-trifluoromethylbenzoyl and p-toluenesulphonyl moieties resulted in complete suppression of antischistosomal activity. (C) 2011 Elsevier Ltd. All rights reserved.

  DOI：

  10.1016/j.bmcl.2011.11.108
• 作为产物：
  描述：

  6,7-二甲氧基-3,4-二氢异喹啉 以 二氯甲烷 为溶剂， 反应 24.5h， 生成 tert-butyl 1-cyano-6,7-dimethoxy-3,4-dihydroisoquinoline-2(1H)-carboxylate
  参考文献：
  名称：

  Synthesis of new praziquantel analogues: Potential candidates for the treatment of schistosomiasis

  摘要：

  An efficient synthesis of antischistosomal drug praziquantel and analogues was achieved and the synthetic route designed was to afford structurally diverse analogues for better structure-activity relationship understanding. Total of nineteen PZQ analogues with structural variations at amide, piperazine and aromatic moieties have been synthesized and fully characterized. Among all the new analogues tested for antischistosomal activity, one dimethoxy tetrahydroisoquinoline analogue and two tetrahydro-beta-carboline analogues exhibited moderate activity against adult Schistosoma mansoni. Tetrahydro-beta-carboline analogues showed moderate activity whereas the presence of p-trifluoromethylbenzoyl and p-toluenesulphonyl moieties resulted in complete suppression of antischistosomal activity. (C) 2011 Elsevier Ltd. All rights reserved.

  DOI：

  10.1016/j.bmcl.2011.11.108

文献信息

• DDQ-Promoted Mild and Efficient Metal-Free Oxidative α-Cyanation of N-Acyl/Sulfonyl 1,2,3,4-Tetrahydroisoquinolines
  作者：Hong Kim、Heesun Yu、Hyoungsu Kim、Seok-Ho Kim、Dongjoo Lee

  DOI：10.3390/molecules23123223

  日期：——

  N-acyl/sulfonyl iminium ions with (n-Bu)3SnCN. Employing readily removable N-acyl/sulfonyl groups as protecting groups rather than N-aryl ones enables a wide range of applications in natural product synthesis. The synthetic utility of the method was illustrated using a short and efficient formal total synthesis of (±)-calycotomine in three steps.

  N-酰基/磺酰基 1,2,3,4-四氢异喹啉 (THIQ) 的温和且高效的无金属氧化 α-氰化反应已在环境温度下通过 DDQ 氧化和随后的 N-酰基/磺酰基亚胺的捕获完成(n-Bu)3SnCN 离子。使用易于去除的 N-酰基/磺酰基作为保护基团而不是 N-芳基使天然产物合成中的应用范围广泛。使用 (±)-calycotomine 的短而有效的形式全合成分三个步骤说明了该方法的合成效用。