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:
Jan. 25, 1994
Filed:
Mar. 17, 1992
Applicant:
Inventors:
Josephus H Lange, Weesp, NL;
Gerrit P Toorop, Weesp, NL;
Ineke v Wijngaarden, Weesp, NL;
Jacobus A den Hartog, Weesp, NL;
Assignee:
Duphar International Research B.V., Weesp, NL;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A61K / ; A61K / ; C07D / ; C07D / ;
U.S. Cl.
CPC ...
514253 ; 514254 ; 514255 ; 514317 ; 514321 ; 514327 ; 544377 ; 544398 ; 544401 ; 546197 ; 546217 ; 546236 ;
Abstract
The invention relates to compounds having anti-ischaemic activity, memory enhancing activity and anti-convulsive activity of the formulae 1A and 1B ##STR1## wherein R.sub.1 +R.sub.2 together form an alkylene group having 1-3 C-atoms which may be substituted with one or more alkyl group(s) having 1-3 C-atoms and the remaining R and Z variables are defined as disclosed herein, or a pharmacologically acceptable salt thereof.