Design and Synthesis of New Biprivileged Molecular Scaffolds: Indolo‐Fused Benzodiazepinyl/quinoxalinyl benzimidazoles
作者:Indrajeet J. Barve、Chan‐Yu Chen、Deepak B. Salunke、Wen‐Sheng Chung、Chung‐Ming Sun
DOI:10.1002/asia.201200121
日期:2012.7
describes the design and synthesis of new biprivileged molecular scaffolds with diverse structural features. Commercially available, simple heterocyclic building blocks such as 4‐fluoro‐3‐nitrobenzoic acid, 2‐chloro‐3‐nitrobenzoic acid, and indoline were utilized for the synthesis of the novel heterocycles. Pictet–Spengler‐type condensation was used as a key step to construct tetracyclic indolo‐benzodiazepines
本文介绍了具有不同结构特征的新型双特权分子支架的设计和合成。使用市售的简单杂环结构单元(例如4-氟-3-硝基苯甲酸,2-氯-3-硝基苯甲酸和二氢吲哚)来合成新型杂环。Pictet-Spengler型缩合反应是构建与取代苯并咪唑连接的四环吲哚-苯并二氮杂卓和吲哚-喹喔啉的关键步骤。代表性化合物的单晶分析表明,这些分子骨架具有呈现具有不同三维方向的各种取代基的潜力。