Drug – bio-affecting and body treating compositions – Designated organic active ingredient containing – Having -c- – wherein x is chalcogen – bonded directly to...
Reexamination Certificate
2004-10-26
2008-08-05
Tucker, Zachary C (Department: 1624)
Drug, bio-affecting and body treating compositions
Designated organic active ingredient containing
Having -c-, wherein x is chalcogen, bonded directly to...
C544S405000
Reexamination Certificate
active
07407961
ABSTRACT:
A pyrazine derivative of the following formula (I):or a salt thereof.The pyrazine compound (I) and a salt thereof of the present invention are adenosine antagonists and are useful for the prevention and/or treatment of depression, dementia (e.g. Alzheimer's disease, cerebrovascular dementia, dementia accompanying Parkinson's disease, etc.), Parkinson's disease, anxiety, pain, cerebrovascular disease (e.g. stroke, etc.), heart failure and the like.
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Akahane Atsushi
Aoki Satoshi
Matsushima Yuji
Yonishi Satoshi
Astellas Pharma Inc.
Oblon & Spivak, McClelland, Maier & Neustadt P.C.
Tucker Zachary C
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