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:
Mar. 06, 1984
Filed:
Dec. 23, 1981
Applicant:
Inventors:
Simon F Campbell, Deal, GB;
Rhona M Plews, Canterbury, GB;
Assignee:
Pfizer Inc., New York, NY (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A61K / ; A61K / ; C07D / ; C07D / ;
U.S. Cl.
CPC ...
424251 ; 424246 ; 42424856 ; 424249 ; 544 62 ; 544113 ; 544119 ; 544198 ; 544207 ; 544209 ; 544212 ; 544238 ; 544253 ; 544284 ; 544291 ; 544292 ; 544295 ; 544319 ; 544334 ;
Abstract
2,4-Diaminoquinazoline compounds of the formula ##STR1## or a pharmaceutically acceptable salt thereof wherein R is a pyrimidinyl, pyrazinyl, pyridazinyl or triazinyl group linked to the piperazine ring by one of its carbon atoms, and optionally substituted by hydroxy, halogen, alkyl, aralkyl, alkoxy, aralkoxy, alkylthio, aryl, aryloxy and certain amino groups; their use as an antihypertensive agent and pharmaceutical compositions containing them.