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:
Jul. 12, 1988
Filed:
Feb. 24, 1986
Geoffrey G Coker, Bromley, GB;
John W Findlay, Chapel Hill, NC (US);
Burroughs Wellcome Co., Research Triangle Park, NC (US);
Abstract
The present invention provides compounds of the formula (I): ##STR1## or salts, esters or amide derivatives thereof, wherein R.sub.1 is --CO.sub.2 H, --CH.dbd.CH--CO.sub.2 H, --(CH.sub.2).sub.n CO.sub.2 H, or --O--(CH.sub.2).sub.n CO.sub.2 H (n=1 to 4); R.sub.2 is C.sub.1.varies. alkyl or benzyl which is optionally substituted by a C.sub.1-4 alkyl group or groups; R.sub.3 is C.sub.1-4 alkoxy, C.sub.1-4 alkyl or halogen. Also provided are pharmaceutical formulations containing the compounds of the formula (I) and methods for the preparation of the compounds. The above mentioned compounds have antihistaminic activity.