Process for the preparation of chiral 8-(3-aminopiperidin-1-yl)-xanthines

US8883805B2 · kind B2 · utility

Assignee

• Boehringer Ingelheim International GmbH · DE

Inventors

• Waldemar Pfrengle · Seibersbach, DE
• Thorsten Pachur · Biberach an der Riß, DE
• Thomas Nicola · Ingelheim am Rhein, DE
• Adil Duran · Biberach an der Riß, DE

Key dates

• Filing date: Mar 1, 2013
• Grant date: Nov 11, 2014
• Expiry date: Mar 23, 2033

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07B2200/07
• WIPO field: Pharmaceuticals
• WIPO sector: Chemistry

Abstract

The invention relates to an improved process for preparing enantiomerically pure 8-(3-aminopiperidin-1-yl)-xanthines.