A Concise and Versatile Synthesis of Viridicatin Alkaloids from Cyanoacetanilides
作者:Yusuke Kobayashi、Takashi Harayama
DOI:10.1021/ol900255g
日期:2009.4.2
The efficient synthesis of 3-hydroxy-4-arylquinolin-2(1H)-ones through one-pot Knoevenagel condensation/epoxidation of cyanoacetanilides followed by decyanative epoxide-arene cyclization is described. A convergent assembly with functionalized aldehydes allows for rapid synthesis with diverse substitution patterns. Isolation of 3-hydroxy-4-arylquinolin-2(1H)-ones is readily accomplished by precipitation and filtration.