| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide inhibitors of HCV (hepatitis C virus) NS5b polymerase. <P>SOLUTION: This invention relates to compounds expressed by the formula I, wherein R<SP POS="POST">1</SP>is selected from the group consisting of 2-5C unbranched or branched alkyl, 2-5C unbranched or branched alkenyl, 2-5C unbranched or branched alkynyl, 2-5C lower haloalkyl, 3-6C cycloalkyl, and 2-4C alkoxy. <P>COPYRIGHT: (C)2012,JPO&INPIT |
