New quaternary ammonium compounds, their preparation and use

US5223614A · kind A · utility

Assignee

• Boehringer Ingelheim GmbH · DE

Inventors

• Kurt Schromm · Ingelheim am Rhein, DE
• Anton Mentrup · Mainz, DE
• Ernst-Otto Renth · Ingelheim am Rhein, DE
• Gojko Mualcevic · Ingelheim am Rhein, DE
• Werner Traunecker · Münster-Sarmsheim, DE

Key dates

• Filing date: Oct 25, 1990
• Grant date: Jun 29, 1993
• Expiry date: Oct 25, 2010

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07D413/12
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

Compounds of formula ##STR1## wherein the substituents are defined hereinbelow, useful in the treatment of bronchospasm are described.