作者:Hartmut Schirok
DOI:10.1021/jo060512h
日期:2006.7.1
7-Azaindoles are versatile building blocks, especially in medicinal chemistry, where they serve as bioisosteres of indoles or purines. Herein, we are presenting a robust and flexible synthesis of 1,3- and 1,3,6-substituted 7-azaindoles starting from nicotinic acid derivatives or 2,6-dichloropyridine, respectively. Microwave heating dramatically accelerates the penultimate reaction step, an epoxide
7-氮杂吲哚是多用途的构建基块,尤其是在药物化学中,它们可作为吲哚或嘌呤的生物等排体。在本文中,我们提出了分别从烟酸衍生物或2,6-二氯吡啶开始的1、3和1,3,6-取代的7-氮杂吲哚的稳健而灵活的合成。微波加热极大地加速了倒数第二个反应步骤,即环氧化物-开环-脱水过程。检查反应的官能团相容性以及产物在进一步官能化中的应用。