| 摘要 |
THE PRESENT INVENTION RELATES TO NUCLEOSIDE DERIVATIVES FOR THE TREATMENT OF HEPATITIS C VIRAL INFECTIONS INCLUDING COMPOUNDS OF FORMULA I,@PHARMACEUTICAL COMPOSITIONS COMPRISING THESE COMPOUNDS AND METHODS FOR TREATMENT OR PROPHYLAXIS OF HEPATITIS C VIRUS MEDIATED DISEASES EMPLOYING SAID COMPOUNDS IN MONOTHERAPY OR IN COMBINATION THERAPY. THE PRESENT INVENTION FURTHER PROVIDES A PROCESS FOR PREPARING 1( ), 3( ), 4( )-TRIACYL PYRIMIDINE NUCLEOSIDE FROM A N, 1( ), 3( ), 4( )-TETRAACYLPYRIMIDINE NUCLEOSIDE
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