Anti-allergic aryl ether derivatives

US4382943A · kind A · utility

Assignee

• Boehringer Mannheim GmbH · DE

Inventors

• Werner Winter · Aachen, DE
• Walter-Gunar Friebe · Mannheim, DE
• Androniki Roesch · Mannheim, DE
• Otto-Henning Wilhelms · Weinheim, DE

Key dates

• Filing date: Jul 6, 1981
• Grant date: May 10, 1983
• Expiry date: Jul 6, 2001

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61P37/08
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

An aryl ether derivative of the formula ##STR1## in which A is an oxygen atom or an >N--R.sub.1 grouping, PA1 R.sub.1 is a hydrogen atom or a lower alkyl radical, PA1 B is an alkylene radical containing 2 to 4 carbon atoms, PA1 R.sub.2 and R.sub.3 each independently is a hydrogen or halogen atom, hydroxyl group or lower alkyl, lower alkoxy or lower alkanoyl radical, PA1 R.sub.4 is a hydrogen atom or an acyl radical, and PA1 n is an integer from 1 to 5, or a pharmacologically acceptable salt thereof, which possesses anti-allergic activity.