Drug – bio-affecting and body treating compositions – Designated organic active ingredient containing – Heterocyclic carbon compounds containing a hetero ring...
Reexamination Certificate
2005-12-16
2008-09-16
Habte, Kahsay T (Department: 1624)
Drug, bio-affecting and body treating compositions
Designated organic active ingredient containing
Heterocyclic carbon compounds containing a hetero ring...
C544S010000, C544S012000, C514S223200
Reexamination Certificate
active
07425552
ABSTRACT:
The invention is directed to pyridazinone compounds of Formula I and pharmaceutical compositions containing compounds of Formula Iwherein R1and R2are independently H, alkyl, cycloalkyl, aryl, or heterocyclyl; and Ring A is 5 or 6-membered aryl or heterocyclyl. The invention also encompasses methods of using a compound of Formula I in the treatment of hepatitis C virus infections.
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Li Liansheng
Webber Stephen E.
Zhou Yuefen
Anadys Pharmaceuticals, Inc.
Connolly Bove & Lodge & Hutz LLP
Habte Kahsay T
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