| 摘要 |
The present invention relates to pyridines and pyrimidine derivatives of formula (I) wherein R<SUB>1</SUB>, R<SUB>2</SUB>, R<SUB>3</SUB>, R<SUB>4 </SUB>and R<SUB>5</SUB> are as defined herein, and their pharmaceutical compositions useful as antiviral compounds, and their methods of preparation and methods for use in the treatment as antiviral agents. |
