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:
Dec. 04, 1979
Filed:
Nov. 28, 1977
Applicant:
Inventors:
Adolf H Philipp, St. Laurent, CA;
Ivo L Jirkovsky, Montreal, CA;
Assignee:
Ayerst McKenna & Harrison Ltd., Montreal, CA;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A61K / ; C07D / ;
U.S. Cl.
CPC ...
424275 ; 424269 ; 548253 ; 549 26 ; 549 27 ; 2603452 ;
Abstract
Compounds of formula I ##STR1## in which R.sup.1 is hydrogen, halogen, nitro, trifluoromethyl, lower alkyl or lower alkoxy; R.sup.2 is hydrogen or lower alkyl; R.sup.3 is hydroxy, 1H-tetrazol-5-yl or COOR.sup.4 wherein R.sup.4 is hydrogen or lower alkyl, and X is O, S, SO or SO.sub.2, are disclosed. The compounds of formula I are useful for treating allergic conditions. Methods for the preparation and use of the compounds are disclosed.