The invention provides compounds of formula (I) and salts thereof wherein R4-R8 have any of the meanings defined in the specification, as well as pharmaceutical compositions comprising the compounds or salts and methods for their use in therapy. The compounds have useful antiviral properties.
The invention provides compounds of formula (I) and salts thereof wherein R
4
-R
8
have any of the meanings defined in the specification, as well as pharmaceutical compositions comprising the compounds or salts and methods for their use in therapy. The compounds have useful antiviral properties.
3-Hydroxyquinolin-2(1<i>H</i>)-ones As Inhibitors of Influenza A Endonuclease
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.