Microwave-Assisted Flexible Synthesis of 7-Azaindoles
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