Drug – bio-affecting and body treating compositions – Designated organic active ingredient containing – Heterocyclic carbon compounds containing a hetero ring...
Reexamination Certificate
2003-08-12
2008-08-05
Berch, Mark L (Department: 1624)
Drug, bio-affecting and body treating compositions
Designated organic active ingredient containing
Heterocyclic carbon compounds containing a hetero ring...
C544S118000, C544S268000, C544S269000, C544S270000, C544S271000, C544S272000, C544S235000, C544S237000, C514S248000, C514S263200, C514S263210, C514S263220, C514S263230, C514S263350, C514S263340, C514S263360
Reexamination Certificate
active
07407955
ABSTRACT:
The present invention relates to substituted xanthines of general formulawherein R1to R3are defined as in claims1to16, the tautomers, the stereoisomers, the mixtures, the prodrugs thereof and the salts thereof which have valuable pharmacological properties, particularly an inhibiting effect on the activity of the enzyme dipeptidylpeptidase-IV (DPP-IV).
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Eckhardt Matthias
Himmelsbach Frank
Langkopf Elke
Lotz Ralf R. H.
Maier Roland
Berch Mark L
Boehringer Ingelheim Pharma GmbH & Co. KG
Devlin Mary-Ellen M.
Morris Michael P.
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