作者:Hye Yeon Sagong、Ajit Parhi、Joseph D. Bauman、Disha Patel、R. S. K. Vijayan、Kalyan Das、Eddy Arnold、Edmond J. LaVoie
DOI:10.1021/ml4001112
日期:2013.6.13
Several 3-hydroxyquinolin-2(1H)-ones. derivatives were synthesized and evaluated as inhibitors of 2009 pandemic H1N1 influenza A endonuclease. All five of the monobrominated 3-hydroxyquinolin (1H)-2-ones derivatives were synthesized. Suzuki-coupling of p-fluorophenylboronic acid with each of these brominated derivatives provided the respective p-fluorophenyl hydroxyquinolin (1H)-2-ones. In addition to 3-hydroxyquinolin-2 (1H)-one, its 4-methyl, 4-phenyl, 4-methyl-7-(p-fluorophenyl), and 4-phenyl-7-(p-fluorophenyl) derivatives were also synthesized. Comparative studies on their relative activity revealed that both 6- and 7-(p-fluorophenyl)-3- hydroxyquinolin-2(1H)-one are among the more potent inhibitors of H1N1 influenza A endonuclease. An X-ray crystal structure of 7-(p-fluorophenyl)-3-hydroxyquinolin-2(1H)-one complexed to the influenza endonuclease revealed that this molecule chelates to two metal ions at the active site of the enzyme.