Drug – bio-affecting and body treating compositions – Designated organic active ingredient containing – Heterocyclic carbon compounds containing a hetero ring...
Reexamination Certificate
2006-12-12
2006-12-12
Tucker, Zachary C. (Department: 1624)
Drug, bio-affecting and body treating compositions
Designated organic active ingredient containing
Heterocyclic carbon compounds containing a hetero ring...
C544S257000, C544S349000, C544S350000, C544S354000
Reexamination Certificate
active
07148224
ABSTRACT:
The present invention relates to a compound of the general formula (I):[Ar1is aryl fused to the adjacent pyrazinone ring at the 5th and 6th positions, etc., X is CO, etc., Y is CH, etc., Z is CH, etc., V is CH, etc., Wnis —(CH2)n— (n is zero to four), R1, is H or optionally substituted lower alkyl, etc., R2is H, etc., R3and R4are the same or different and are each H, etc., R5and R6are the same or different and are each H, hydroxy, etc.] or a pharmaceutically acceptable salt or ester thereof; a pharmaceutical composition, an inhibitor of Cdk4 and/or Cdk6 or an anti-cancer agent, containing the same as an active ingredient; and a process for preparing them.
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Hayama Takashi
Kawanishi Nobuhiko
Takaki Tooru
Banyu Pharmaceutical Co. Ltd.
Tucker Zachary C.
Wenderoth , Lind & Ponack, L.L.P.
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