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:
Aug. 18, 1992
Filed:
Feb. 20, 1991
Applicant:
Inventors:
Assignee:
Nisshin Flour Milling Co., Ltd., Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
A61K / ; C07D / ;
U.S. Cl.
CPC ...
514423 ; 548531 ;
Abstract
1-Phenoxycarbonyl-2-pyrrolidinone derivatives of formula (I) or (I') are disclosed. ##STR1## wherein R is a C.sub.1 -C.sub.6 alkyl group, a C.sub.1 -C.sub.6 alkoxy group, a nitro group or a halogen atom and n is 1 or 2, and R' is the same as R, but including further a hydrogen atom. The compounds of formula (I') are useful as nootropic agents.