A copy of this work was available on the public web and has been preserved in the Wayback Machine. The capture dates from 2017; you can also visit the original URL.
The file type is
A model N-ethyl-1,10-dioxo-3-phenylpyrano[3,2- f ]quinoline-9-carboxylic acid (8) and the isomeric (2-substituted) pyrano[2,3- f ]quinoline-9-carboxylic acids (6 and 7) were prepared from the corresponding 6/7-aminochromen-4-ones via the Gould-Jacobs reaction. The new tricyclic heterocycles 6-8 exhibit moderate antibacterial activity (MIC=16 - 64 μgmL-1) against E. coli and S. aureusdoi:10.5560/znb.2013-3122 fatcat:qzvzler6szcynmigv6qymytkcy