Benzoylpyridazines

US7312328B2 · kind B2 · utility

Assignee

• Merck Patent GmbH · DE

Inventors

• Hans-Michael Eggenweiler · Darmstadt, DE
• Michael Wolf · Darmstadt, DE
• Norbert Beier · Reinheim, DE
• Joachim Leibrock · Gauting, DE
• Michael Gassen · Munich, DE
• Thomas Ehring · Remscheid, DE

Key dates

• Filing date: Dec 19, 2001
• Grant date: Dec 25, 2007
• Expiry date: Apr 20, 2023

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07D237/04
• WIPO field: Pharmaceuticals
• WIPO sector: Chemistry

Abstract

This invention relates to compounds of the formula (I) in which R1, R2, R3, X and Q are as defined above and their use as PDE IV inhibitors.