Three-Component Bicyclization Providing an Expedient Access to Pyrano[2′,3′:5,6]pyrano[2,3-<i>b</i>]pyridines and Its Derivatives
作者:Xing-Jun Tu、Wei Fan、Wen-Juan Hao、Bo Jiang、Shu-Jiang Tu
DOI:10.1021/co500100c
日期:2014.11.10
A new three-componentbicyclization for the efficient synthesis of a fused pyrano[2,3-b]pyridine library has been developed. The syntheses were achieved by reacting diverse C,O-containing nucleophiles, aldehydes, and 2-aminoprop-1-ene-1,1,3-tricarbonitrile undermicrowaveirradiation, providing 50 examples of chemically and biomedically significant pyrano[2,3-b]pyridine analogues with the concomitant