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. 23, 1989
Filed:
Feb. 26, 1988
Applicant:
Inventors:
Assignee:
Kirin Beer Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A61K / ;
U.S. Cl.
CPC ...
514424 ;
Abstract
A use of the pyrrolidone derivative represented by the following formula [I] as an anti-amnesitc agent: ##STR1## wherein R represents a group ##STR2## X represents --SO.sub.2 -- or --CO--; R' represents a hydrogen atom, a lower alkyl group, a trifluoromethyl group, a halogen atom or a nitro group; n denotes an integer of 1-5; and, when n is an integer of 2 or more, R' may be the same or different, provided that