Drug – bio-affecting and body treating compositions – Designated organic active ingredient containing – Having -c- – wherein x is chalcogen – bonded directly to...
Reexamination Certificate
2003-08-13
2011-10-18
Moore, Susanna (Department: 1624)
Drug, bio-affecting and body treating compositions
Designated organic active ingredient containing
Having -c-, wherein x is chalcogen, bonded directly to...
C544S262000
Reexamination Certificate
active
08039477
ABSTRACT:
The invention relates to novel alkyl-substituted pyrazolopyrimidines, process for their preparation, and the use thereof for producing medicaments for improving perception, concentration, learning and/or memory with compounds of formula (I):
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Böβ Frank-Gerhard
Burkhardt Nils
Erb Christina
Hendrix Martin
Tersteegen Adrian
Boehringer Ingelheim International GmbH
Lazer Edward S.
Moore Susanna
Morris Michael P.
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