|Title:||8-[3-amino-piperidin-1-yl]-xanthines, the preparation thereof and their use as pharmaceutical compositions|
|Abstract:||The present invention relates to substituted xanthines of general formula ##STR00001## wherein R.sup.1 to R.sup.3 are as defined herein, 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).|
|Inventor(s):||Himmelsbach; Frank (Mittelbiberach, DE), Langkopf; Elke (Biberach an der Riss, DE), Eckhardt; Matthias (Biberach an der Riss, DE), Mark; Michael (Biberach an der Riss, DE), Maier; Roland (Biberach an der Riss, DE), Lotz; Ralf (Schemmerhofen, DE), Tadayyon; Mohammad (Welwyn Garden City, GB)|
|Assignee:||Boehringer Ingelheim International GmbH (Ingelheim am Rhein, DE)|
|Filing Date:||Jun 24, 2015|
|Claims:||1. 1-[([1,5]naphthyridin-2-yl)methyl]-3-methyl-7-(2-butyn-l-yl)-8-((R)-3-- amino-piperidin-1-yl)-xanthine, or a pharmaceutically acceptable salt thereof. |
2. The pharmaceutically acceptable salt of the compound of claim 1.
3. The free-base form of the compound of claim 1.
4. A pharmaceutical composition comprising the compound of claim 1, or a pharmaceutically acceptable salt thereof, and a pharmaceutically acceptable carrier.