Arylalkylpyridazinones

US6399611B1 · kind B1 · utility

Assignee

• MERCK PATENT GESELLSCHAFT MIT BESHRANK TER HAFTUNG · DE

Inventors

• Rochus Jonas · Darmstadt, DE
• Michael Wolf · Darmstadt, DE
• Norbert Beier · Reinheim, DE

Key dates

• Filing date: Apr 19, 1996
• Grant date: Jun 4, 2002
• Expiry date: Apr 19, 2016

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61P43/00
• WIPO field: Pharmaceuticals
• WIPO sector: Chemistry

Abstract

Aralkylpyridazinone derivatives of the formula I and their physiologically acceptable salts in whichR1, R2, R3, R4, R5 and Q have the meanings indicated in claim 1, show inhibition of phosphodiesterase IV and can be employed for the treatment of inflammatory processes and of allergies, asthma and autoimmune disorders.