The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 31, 1984
Filed:
Apr. 27, 1982
Applicant:
Inventors:
Walter-Gunar Friebe, Darmstadt, DE;
Wolfgang Kampe, Heddesheim, DE;
Egon Roesch, Mannheim, DE;
Otto-Henning Wilhelms, Weinheim-Rittenweier, DE;
Assignee:
Boehringer Mannheim GmbH, Mannheim, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A61K / ; C07D / ; C07D / ;
U.S. Cl.
CPC ...
424267 ; 546193 ; 546196 ;
Abstract
The present invention provides benzopyranyl ethers of the general formula: ##STR1## wherein A is an alkylene radical containing 2 to 4 carbon atoms and R is a hydrogen atom or an acyl radical; as well as the salts thereof with pharmacologically acceptable acids. The present invention also provides processes for the preparation of these compounds and pharmaceutical compositions containing them. Furthermore, the present invention is concerned with the use of these compounds for treating allergic diseases.