"XANTHINE DERIVATIVES, THE PREPARATION THEREOF AND THEIR USE AS PHARMACEUTICAL COMPOSITIONS"
Application 1092/DELNP/2003 published 2007-01-12, filed 2003-07-14
The present invention relates to substituted xanthines of general formula wherein R1 to R4 are defined as in claim 1, the tautomers and the stereoisomers thereof, mixtures thereof, the prodrugs and the salts thereof which have valuable pharmacological properties, particularly an inhibiting effect on the activity of the enzyme dipeptidylpeptidase-IV (DPP-IV).
Applicant
1)BOEHRINGER INGELHEIM PHARMA GMBH & CO. KG.,
:BINGER STRASSE 173, D-55216 INGELHEIM AM RHEIN, GERMANY Germany
Inventor
1)FRANK HIMMELSBACH 2)MICHAEL MARK 3)MATTHIAS ECKHARDT 4)ELKE LANGKOPF 5)ROLAND MAIER 6)RALF H. LOTZ
International Info
Classification: C07D 473/30
Publication Number: WO 02/068420
Application Date: 2001-02-21
Priority Information
101 09 021.8 Germany 2001-02-24