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:
Jul. 24, 1984
Filed:
Jul. 28, 1980
Applicant:
Inventors:
Werner Aschwanden, Ettingen, CH;
Emilio Kyburz, Reinach, CH;
Assignee:
Hoffmann-La Roche Inc., Nutley, NJ (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07D / ; C07D / ; A61K / ;
U.S. Cl.
CPC ...
548406 ; 548543 ; 548544 ; 548517 ; 424274 ;
Abstract
1-Substituted-2-pyrrolidinones of the formula ##STR1## wherein one of R.sup.1, R.sup.2 and R.sup.3 represents hydroxy and the remaining substituents represent hydrogen, are capable of counteracting cerebral insufficiency produced experimentally in animal tests. They can be used therapeutically in the control or prevention of cerebral insufficiency or in the improvement of intellectual capacity. They can be manufactured from novel intermediates and can be processed to provide medicaments.