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:
Apr. 22, 1986
Filed:
Sep. 17, 1984
Applicant:
Inventor:
George S Sach, Welwyn, GB;
Assignee:
Smith Kline & French Laboratories Limited, Welwyn Garden City, GB;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07D / ;
U.S. Cl.
CPC ...
546312 ; 546329 ; 544340 ;
Abstract
Compounds of the formula: ##STR1## where R.sup.1 is halogen or nitro; R.sup.2 is C.sub.1-4 alkyl; and R.sup.3 is a C.sub.1-3 alkylene group are intermediates to 2-(3,5-disubstituted pyridyl-alkyl amino)-5-pyridylmethyl-4-pyrimidone derivatives which are useful as histamine H.sub.1 -antagonists.