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. 23, 1997
Filed:
May. 06, 1996
Applicant:
Inventor:
Hartford W Manning, Aurora, CA;
Assignee:
Torcan Chemical Ltd., Aurora, CA;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07D / ; C07D / ;
U.S. Cl.
CPC ...
548203 ; 548205 ;
Abstract
Nizatidine is prepared by a process in which the final step is the reaction of the 2-hydroxymethyl analog of nizatidine, namely N-�2-���2-(hydroxymethyl)-4-thiazolidyl!-methyl!thio!ethyl!-N'-methyl-2-ni tro-1,1-ethenediamine, with excess dimethylamine and an (N,N-dimethylamino)phosphonium halide such as (N,N-dimethylamino) triphenyl-phosphonium bromide. The process yields nizatidine in a very high state of purity.