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. 23, 1990
Filed:
Oct. 18, 1988
Charles J Hedgecock, Wootton Bassett, GB;
David P Kay, Swindon, GB;
Roussel Uclaf, Paris, FR;
Abstract
A compound selected from the group consisting of a compound of the formula ##STR1## wherein R.sub.1 is selected from the group consisting of ##STR2## R.sub.4, R.sub.5, R.sub.7 and R.sub.8 are individually selected from the group consisting of hydrogen and alkyl of 1 to 5 carbon atoms, R.sub.6 is selected from the group consisting of hydrogen, alkyl of 1 to 5 carbon atoms, phenyl, halogen, alkoxycarbonyl of 2 to 5 carbon atoms, cyano, ##STR3## R' and R' are individually alkyl of 1 to 5 carbon atoms, R.sub.2 and R.sub.3 together form a member of the group consisting of ##STR4## m is 1, 2 or 3, X.sub.1 and X.sub.2 are individually selected from the group consisting of hydrogen, alkyl of 1 to 5 carbon atoms, alkenyl of 2 to 5 carbon atoms, alkoxy of 1 to 5 carbon atoms, aralkoxy, aryloxy, halogen, azido and nitro or taken together form methylenedioxy and their non-toxic, pharmaceutically acceptable acid additon salts capable of treating memory disorders.