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:
May. 09, 1989
Filed:
Dec. 29, 1986
Applicant:
Inventors:
Emilio Toja, Milan, IT;
Carlo Gorini, Milan, IT;
Carlo Zirotti, Arona, IT;
Fernando Barzaghi, Monza, Milan, IT;
Giulio Galliani, Monza, Milan, IT;
Assignee:
Roussel Uclaf, Paris, FR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07D / ; C07D / ; A61K / ;
U.S. Cl.
CPC ...
514425 ; 514343 ; 546281 ; 548572 ;
Abstract
Memory enhancing 1-(benzenesulfonyl)-2-oxo-5-alkoxy-pyrrolidines are prepared by alkylation of the corresponding pyrrolidones or pyrrolidone precursors.