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:
Sep. 20, 1977
Filed:
Aug. 20, 1975
Applicant:
Inventors:
Graham John Durant, Welwyn Garden City, EN;
Charon Robin Ganellin, Welwyn Garden City, EN;
George Raymond White, Harpenden, EN;
Assignee:
Smith Kline & French Laboratories Limited, Welwyn Garden City, EN;
Primary Examiner:
Int. Cl.
CPC ...
C07D / ; C07D / ; C07D / ; C07D / ; C07D / ; C07D / ; C07D / ; C07D / ;
U.S. Cl.
CPC ...
548342 ; 2602 / ; 2602 / ; 2602 / ; 2603 / ; 2603 / ; 2603 / ; 2603 / ; 2603 / ; 2603 / ; 2603 / ; 548337 ;
Abstract
Process for preparing N-cyanoguanidines by treating N-(loweralkyl)-N'-cyano-isothioureas with an amine and a heavy metal salt. A specific product is N-cyano-N'-methyl-N'-[2-((5-methyl-4-imidazolyl)methylthio)ethyl]guanidine , useful as a histamine H.sub.2 -antagonist.