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. 04, 1994
Filed:
Dec. 14, 1992
Applicant:
Inventors:
Mark Whittaker, Oxfordshire, GB;
Andrew Miller, Oxfordshire, GB;
Assignee:
British Bio-Technology Limited, Oxford, GB;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07D / ;
U.S. Cl.
CPC ...
546 82 ; 546118 ;
Abstract
Compounds of general formula I; ##STR1## wherein: A.sup.1 is .dbd.N--, .dbd.CH-- or .dbd.CR.sup.1 --; A.sup.2 is .dbd.N--, .dbd.CH-- or .dbd.CR.sup.2 --; provided that, when one of A.sup.1 and A.sup.2 is a nitrogen atom, the other of A.sup.1 and A.sup.2 is other than a nitrogen atom; wherein the rest of the variables are defined in the specification; and their pharmaceutically and veterinarily acceptable acid addition salts and hydrates are antagonists of platelet activating factor (PAF) and as such are useful in the treatment or amelioration of various diseases or disorders mediated by PAF.